CONTRIB: contrib/prometheus-exporter: Add a Prometheus exporter for HAProxy
It has been developped as a service applet. Internally, it is called
"promex". To build HAProxy with the promex service, you should use the Makefile
variable "EXTRA_OBJS". To be used, it must be enabled in the configuration with
an "http-request" rule and the corresponding HTTP proxy must enable the HTX
support. For instance:
frontend test
mode http
...
option http-use-htx
http-request use-service prometheus-exporter if { path /metrics }
...
See contrib/prometheus-exporter/README for details.
diff --git a/contrib/prometheus-exporter/service-prometheus.c b/contrib/prometheus-exporter/service-prometheus.c
new file mode 100644
index 0000000..d61d94f
--- /dev/null
+++ b/contrib/prometheus-exporter/service-prometheus.c
@@ -0,0 +1,2284 @@
+/*
+ * Promex is a Prometheus exporter for HAProxy
+ *
+ * It is highly inspired by the official Prometheus exporter.
+ * See: https://github.com/prometheus/haproxy_exporter
+ *
+ * Copyright 2019 Christopher Faulet <cfaulet@haproxy.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <common/cfgparse.h>
+#include <common/config.h>
+#include <common/buffer.h>
+#include <common/htx.h>
+#include <common/initcall.h>
+#include <common/memory.h>
+#include <common/mini-clist.h>
+
+#include <types/global.h>
+
+#include <proto/action.h>
+#include <proto/applet.h>
+#include <proto/backend.h>
+#include <proto/compression.h>
+#include <proto/frontend.h>
+#include <proto/listener.h>
+#include <proto/http_htx.h>
+#include <proto/pipe.h>
+#include <proto/proxy.h>
+#include <proto/sample.h>
+#include <proto/server.h>
+#include <proto/ssl_sock.h>
+#include <proto/stats.h>
+#include <proto/stream.h>
+#include <proto/stream_interface.h>
+#include <proto/task.h>
+
+/* Prometheus exporter applet states (appctx->st0) */
+enum {
+ PROMEX_ST_INIT = 0, /* initialized */
+ PROMEX_ST_HEAD, /* send headers before dump */
+ PROMEX_ST_DUMP, /* dumping stats */
+ PROMEX_ST_DONE, /* finished */
+ PROMEX_ST_ERROR, /* unrecoverable error occurred */
+};
+
+/* Prometheus exporter dumper states (appctx->st1) */
+enum {
+ PROMEX_DUMPER_INIT = 0, /* initialized */
+ PROMEX_DUMPER_GLOBAL, /* dump metrics of globals */
+ PROMEX_DUMPER_FRONT, /* dump metrics of frontend proxies */
+ PROMEX_DUMPER_BACK, /* dump metrics of backend proxies */
+ PROMEX_DUMPER_LI, /* dump metrics of listeners */
+ PROMEX_DUMPER_SRV, /* dump metrics of servers */
+ PROMEX_DUMPER_DONE, /* finished */
+};
+
+/* Prometheus exporter flags (appctx->ctx.stats.flags) */
+#define PROMEX_FL_METRIC_HDR 0x00000001
+#define PROMEX_FL_INFO_METRIC 0x00000002
+#define PROMEX_FL_STATS_METRIC 0x00000004
+
+/* The max length for metrics name. It is a hard limit but it should be
+ * enougth.
+ */
+#define PROMEX_MAX_NAME_LEN 128
+
+/* The expected max length for a metric dump, including its header lines. It is
+ * just a soft limit to avoid extra work. We don't try to dump a metric if less
+ * than this size is available in the HTX.
+ */
+#define PROMEX_MAX_METRIC_LENGTH 512
+
+/* Matrix used to dump global metrics. Each metric points to the next one to be
+ * processed or 0 to stop the dump. */
+const int promex_global_metrics[INF_TOTAL_FIELDS] = {
+ [INF_NAME] = INF_NBTHREAD,
+ [INF_VERSION] = 0,
+ [INF_RELEASE_DATE] = 0,
+ [INF_NBTHREAD] = INF_NBPROC,
+ [INF_NBPROC] = INF_PROCESS_NUM,
+ [INF_PROCESS_NUM] = INF_UPTIME_SEC,
+ [INF_PID] = 0,
+ [INF_UPTIME] = 0,
+ [INF_UPTIME_SEC] = INF_MEMMAX_MB,
+ [INF_MEMMAX_MB] = INF_POOL_ALLOC_MB,
+ [INF_POOL_ALLOC_MB] = INF_POOL_USED_MB,
+ [INF_POOL_USED_MB] = INF_POOL_FAILED,
+ [INF_POOL_FAILED] = INF_ULIMIT_N,
+ [INF_ULIMIT_N] = INF_MAXSOCK,
+ [INF_MAXSOCK] = INF_MAXCONN,
+ [INF_MAXCONN] = INF_HARD_MAXCONN,
+ [INF_HARD_MAXCONN] = INF_CURR_CONN,
+ [INF_CURR_CONN] = INF_CUM_CONN,
+ [INF_CUM_CONN] = INF_CUM_REQ,
+ [INF_CUM_REQ] = INF_MAX_SSL_CONNS,
+ [INF_MAX_SSL_CONNS] = INF_CURR_SSL_CONNS,
+ [INF_CURR_SSL_CONNS] = INF_CUM_SSL_CONNS,
+ [INF_CUM_SSL_CONNS] = INF_MAXPIPES,
+ [INF_MAXPIPES] = INF_PIPES_USED,
+ [INF_PIPES_USED] = INF_PIPES_FREE,
+ [INF_PIPES_FREE] = INF_CONN_RATE,
+ [INF_CONN_RATE] = INF_CONN_RATE_LIMIT,
+ [INF_CONN_RATE_LIMIT] = INF_MAX_CONN_RATE,
+ [INF_MAX_CONN_RATE] = INF_SESS_RATE,
+ [INF_SESS_RATE] = INF_SESS_RATE_LIMIT,
+ [INF_SESS_RATE_LIMIT] = INF_MAX_SESS_RATE,
+ [INF_MAX_SESS_RATE] = INF_SSL_RATE,
+ [INF_SSL_RATE] = INF_SSL_RATE_LIMIT,
+ [INF_SSL_RATE_LIMIT] = INF_MAX_SSL_RATE,
+ [INF_MAX_SSL_RATE] = INF_SSL_FRONTEND_KEY_RATE,
+ [INF_SSL_FRONTEND_KEY_RATE] = INF_SSL_FRONTEND_MAX_KEY_RATE,
+ [INF_SSL_FRONTEND_MAX_KEY_RATE] = INF_SSL_FRONTEND_SESSION_REUSE_PCT,
+ [INF_SSL_FRONTEND_SESSION_REUSE_PCT] = INF_SSL_BACKEND_KEY_RATE,
+ [INF_SSL_BACKEND_KEY_RATE] = INF_SSL_BACKEND_MAX_KEY_RATE,
+ [INF_SSL_BACKEND_MAX_KEY_RATE] = INF_SSL_CACHE_LOOKUPS,
+ [INF_SSL_CACHE_LOOKUPS] = INF_SSL_CACHE_MISSES,
+ [INF_SSL_CACHE_MISSES] = INF_COMPRESS_BPS_IN,
+ [INF_COMPRESS_BPS_IN] = INF_COMPRESS_BPS_OUT,
+ [INF_COMPRESS_BPS_OUT] = INF_COMPRESS_BPS_RATE_LIM,
+ [INF_COMPRESS_BPS_RATE_LIM] = INF_ZLIB_MEM_USAGE,
+ [INF_ZLIB_MEM_USAGE] = INF_MAX_ZLIB_MEM_USAGE,
+ [INF_MAX_ZLIB_MEM_USAGE] = INF_TASKS,
+ [INF_TASKS] = INF_RUN_QUEUE,
+ [INF_RUN_QUEUE] = INF_IDLE_PCT,
+ [INF_IDLE_PCT] = INF_STOPPING,
+ [INF_NODE] = 0,
+ [INF_DESCRIPTION] = 0,
+ [INF_STOPPING] = INF_JOBS,
+ [INF_JOBS] = INF_UNSTOPPABLE_JOBS,
+ [INF_UNSTOPPABLE_JOBS] = INF_LISTENERS,
+ [INF_LISTENERS] = INF_ACTIVE_PEERS,
+ [INF_ACTIVE_PEERS] = INF_CONNECTED_PEERS,
+ [INF_CONNECTED_PEERS] = INF_DROPPED_LOGS,
+ [INF_DROPPED_LOGS] = INF_BUSY_POLLING,
+ [INF_BUSY_POLLING] = 0,
+};
+
+/* Matrix used to dump frontend metrics. Each metric points to the next one to be
+ * processed or 0 to stop the dump. */
+const int promex_front_metrics[ST_F_TOTAL_FIELDS] = {
+ [ST_F_PXNAME] = ST_F_STATUS,
+ [ST_F_SVNAME] = 0,
+ [ST_F_QCUR] = 0,
+ [ST_F_QMAX] = 0,
+ [ST_F_SCUR] = ST_F_SMAX,
+ [ST_F_SMAX] = ST_F_SLIM,
+ [ST_F_SLIM] = ST_F_STOT,
+ [ST_F_STOT] = ST_F_RATE,
+ [ST_F_BIN] = ST_F_BOUT,
+ [ST_F_BOUT] = ST_F_DREQ,
+ [ST_F_DREQ] = ST_F_DRESP,
+ [ST_F_DRESP] = ST_F_EREQ,
+ [ST_F_EREQ] = ST_F_DCON,
+ [ST_F_ECON] = 0,
+ [ST_F_ERESP] = 0,
+ [ST_F_WRETR] = 0,
+ [ST_F_WREDIS] = 0,
+ [ST_F_STATUS] = ST_F_SCUR,
+ [ST_F_WEIGHT] = 0,
+ [ST_F_ACT] = 0,
+ [ST_F_BCK] = 0,
+ [ST_F_CHKFAIL] = 0,
+ [ST_F_CHKDOWN] = 0,
+ [ST_F_LASTCHG] = 0,
+ [ST_F_DOWNTIME] = 0,
+ [ST_F_QLIMIT] = 0,
+ [ST_F_PID] = 0,
+ [ST_F_IID] = 0,
+ [ST_F_SID] = 0,
+ [ST_F_THROTTLE] = 0,
+ [ST_F_LBTOT] = 0,
+ [ST_F_TRACKED] = 0,
+ [ST_F_TYPE] = 0,
+ [ST_F_RATE] = ST_F_RATE_LIM,
+ [ST_F_RATE_LIM] = ST_F_RATE_MAX,
+ [ST_F_RATE_MAX] = ST_F_CONN_RATE,
+ [ST_F_CHECK_STATUS] = 0,
+ [ST_F_CHECK_CODE] = 0,
+ [ST_F_CHECK_DURATION] = 0,
+ [ST_F_HRSP_1XX] = ST_F_HRSP_2XX,
+ [ST_F_HRSP_2XX] = ST_F_HRSP_3XX,
+ [ST_F_HRSP_3XX] = ST_F_HRSP_4XX,
+ [ST_F_HRSP_4XX] = ST_F_HRSP_5XX,
+ [ST_F_HRSP_5XX] = ST_F_HRSP_OTHER,
+ [ST_F_HRSP_OTHER] = ST_F_INTERCEPTED,
+ [ST_F_HANAFAIL] = 0,
+ [ST_F_REQ_RATE] = ST_F_REQ_RATE_MAX,
+ [ST_F_REQ_RATE_MAX] = ST_F_REQ_TOT,
+ [ST_F_REQ_TOT] = ST_F_HRSP_1XX,
+ [ST_F_CLI_ABRT] = 0,
+ [ST_F_SRV_ABRT] = 0,
+ [ST_F_COMP_IN] = ST_F_COMP_OUT,
+ [ST_F_COMP_OUT] = ST_F_COMP_BYP,
+ [ST_F_COMP_BYP] = ST_F_COMP_RSP,
+ [ST_F_COMP_RSP] = 0,
+ [ST_F_LASTSESS] = 0,
+ [ST_F_LAST_CHK] = 0,
+ [ST_F_LAST_AGT] = 0,
+ [ST_F_QTIME] = 0,
+ [ST_F_CTIME] = 0,
+ [ST_F_RTIME] = 0,
+ [ST_F_TTIME] = 0,
+ [ST_F_AGENT_STATUS] = 0,
+ [ST_F_AGENT_CODE] = 0,
+ [ST_F_AGENT_DURATION] = 0,
+ [ST_F_CHECK_DESC] = 0,
+ [ST_F_AGENT_DESC] = 0,
+ [ST_F_CHECK_RISE] = 0,
+ [ST_F_CHECK_FALL] = 0,
+ [ST_F_CHECK_HEALTH] = 0,
+ [ST_F_AGENT_RISE] = 0,
+ [ST_F_AGENT_FALL] = 0,
+ [ST_F_AGENT_HEALTH] = 0,
+ [ST_F_ADDR] = 0,
+ [ST_F_COOKIE] = 0,
+ [ST_F_MODE] = 0,
+ [ST_F_ALGO] = 0,
+ [ST_F_CONN_RATE] = ST_F_CONN_RATE_MAX,
+ [ST_F_CONN_RATE_MAX] = ST_F_CONN_TOT,
+ [ST_F_CONN_TOT] = ST_F_BIN,
+ [ST_F_INTERCEPTED] = ST_F_CACHE_LOOKUPS,
+ [ST_F_DCON] = ST_F_DSES,
+ [ST_F_DSES] = ST_F_WREW,
+ [ST_F_WREW] = ST_F_REQ_RATE,
+ [ST_F_CONNECT] = 0,
+ [ST_F_REUSE] = 0,
+ [ST_F_CACHE_LOOKUPS] = ST_F_CACHE_HITS,
+ [ST_F_CACHE_HITS] = ST_F_COMP_IN,
+};
+
+/* Matrix used to dump backend metrics. Each metric points to the next one to be
+ * processed or 0 to stop the dump. */
+const int promex_back_metrics[ST_F_TOTAL_FIELDS] = {
+ [ST_F_PXNAME] = ST_F_STATUS,
+ [ST_F_SVNAME] = 0,
+ [ST_F_QCUR] = ST_F_QMAX,
+ [ST_F_QMAX] = ST_F_CONNECT,
+ [ST_F_SCUR] = ST_F_SMAX,
+ [ST_F_SMAX] = ST_F_SLIM,
+ [ST_F_SLIM] = ST_F_STOT,
+ [ST_F_STOT] = ST_F_RATE,
+ [ST_F_BIN] = ST_F_BOUT,
+ [ST_F_BOUT] = ST_F_QTIME,
+ [ST_F_DREQ] = ST_F_DRESP,
+ [ST_F_DRESP] = ST_F_ECON,
+ [ST_F_EREQ] = 0,
+ [ST_F_ECON] = ST_F_ERESP,
+ [ST_F_ERESP] = ST_F_WRETR,
+ [ST_F_WRETR] = ST_F_WREDIS,
+ [ST_F_WREDIS] = ST_F_WREW,
+ [ST_F_STATUS] = ST_F_SCUR,
+ [ST_F_WEIGHT] = ST_F_ACT,
+ [ST_F_ACT] = ST_F_BCK,
+ [ST_F_BCK] = ST_F_CHKDOWN,
+ [ST_F_CHKFAIL] = 0,
+ [ST_F_CHKDOWN] = ST_F_LASTCHG,
+ [ST_F_LASTCHG] = ST_F_DOWNTIME,
+ [ST_F_DOWNTIME] = ST_F_LBTOT,
+ [ST_F_QLIMIT] = 0,
+ [ST_F_PID] = 0,
+ [ST_F_IID] = 0,
+ [ST_F_SID] = 0,
+ [ST_F_THROTTLE] = 0,
+ [ST_F_LBTOT] = ST_F_REQ_TOT,
+ [ST_F_TRACKED] = 9,
+ [ST_F_TYPE] = 0,
+ [ST_F_RATE] = ST_F_RATE_MAX,
+ [ST_F_RATE_LIM] = 0,
+ [ST_F_RATE_MAX] = ST_F_LASTSESS,
+ [ST_F_CHECK_STATUS] = 0,
+ [ST_F_CHECK_CODE] = 0,
+ [ST_F_CHECK_DURATION] = 0,
+ [ST_F_HRSP_1XX] = ST_F_HRSP_2XX,
+ [ST_F_HRSP_2XX] = ST_F_HRSP_3XX,
+ [ST_F_HRSP_3XX] = ST_F_HRSP_4XX,
+ [ST_F_HRSP_4XX] = ST_F_HRSP_5XX,
+ [ST_F_HRSP_5XX] = ST_F_HRSP_OTHER,
+ [ST_F_HRSP_OTHER] = ST_F_CACHE_LOOKUPS,
+ [ST_F_HANAFAIL] = 0,
+ [ST_F_REQ_RATE] = 0,
+ [ST_F_REQ_RATE_MAX] = 0,
+ [ST_F_REQ_TOT] = ST_F_HRSP_1XX,
+ [ST_F_CLI_ABRT] = ST_F_SRV_ABRT,
+ [ST_F_SRV_ABRT] = ST_F_WEIGHT,
+ [ST_F_COMP_IN] = ST_F_COMP_OUT,
+ [ST_F_COMP_OUT] = ST_F_COMP_BYP,
+ [ST_F_COMP_BYP] = ST_F_COMP_RSP,
+ [ST_F_COMP_RSP] = 0,
+ [ST_F_LASTSESS] = ST_F_QCUR,
+ [ST_F_LAST_CHK] = 0,
+ [ST_F_LAST_AGT] = 0,
+ [ST_F_QTIME] = ST_F_CTIME,
+ [ST_F_CTIME] = ST_F_RTIME,
+ [ST_F_RTIME] = ST_F_TTIME,
+ [ST_F_TTIME] = ST_F_DREQ,
+ [ST_F_AGENT_STATUS] = 0,
+ [ST_F_AGENT_CODE] = 0,
+ [ST_F_AGENT_DURATION] = 0,
+ [ST_F_CHECK_DESC] = 0,
+ [ST_F_AGENT_DESC] = 0,
+ [ST_F_CHECK_RISE] = 0,
+ [ST_F_CHECK_FALL] = 0,
+ [ST_F_CHECK_HEALTH] = 0,
+ [ST_F_AGENT_RISE] = 0,
+ [ST_F_AGENT_FALL] = 0,
+ [ST_F_AGENT_HEALTH] = 0,
+ [ST_F_ADDR] = 0,
+ [ST_F_COOKIE] = 0,
+ [ST_F_MODE] = 0,
+ [ST_F_ALGO] = 0,
+ [ST_F_CONN_RATE] = 0,
+ [ST_F_CONN_RATE_MAX] = 0,
+ [ST_F_CONN_TOT] = 0,
+ [ST_F_INTERCEPTED] = 0,
+ [ST_F_DCON] = 0,
+ [ST_F_DSES] = 0,
+ [ST_F_WREW] = ST_F_CLI_ABRT,
+ [ST_F_CONNECT] = ST_F_REUSE,
+ [ST_F_REUSE] = ST_F_BIN,
+ [ST_F_CACHE_LOOKUPS] = ST_F_CACHE_HITS,
+ [ST_F_CACHE_HITS] = ST_F_COMP_IN,
+};
+
+/* Matrix used to dump server metrics. Each metric points to the next one to be
+ * processed or 0 to stop the dump. */
+const int promex_srv_metrics[ST_F_TOTAL_FIELDS] = {
+ [ST_F_PXNAME] = ST_F_STATUS,
+ [ST_F_SVNAME] = 0,
+ [ST_F_QCUR] = ST_F_QMAX,
+ [ST_F_QMAX] = ST_F_QLIMIT,
+ [ST_F_SCUR] = ST_F_SMAX,
+ [ST_F_SMAX] = ST_F_SLIM,
+ [ST_F_SLIM] = ST_F_STOT,
+ [ST_F_STOT] = ST_F_RATE,
+ [ST_F_BIN] = ST_F_BOUT,
+ [ST_F_BOUT] = ST_F_QTIME,
+ [ST_F_DREQ] = 0,
+ [ST_F_DRESP] = ST_F_ECON,
+ [ST_F_EREQ] = 0,
+ [ST_F_ECON] = ST_F_ERESP,
+ [ST_F_ERESP] = ST_F_WRETR,
+ [ST_F_WRETR] = ST_F_WREDIS,
+ [ST_F_WREDIS] = ST_F_WREW,
+ [ST_F_STATUS] = ST_F_SCUR,
+ [ST_F_WEIGHT] = ST_F_CHKFAIL,
+ [ST_F_ACT] = 0,
+ [ST_F_BCK] = 0,
+ [ST_F_CHKFAIL] = ST_F_CHKDOWN,
+ [ST_F_CHKDOWN] = ST_F_DOWNTIME,
+ [ST_F_LASTCHG] = ST_F_THROTTLE,
+ [ST_F_DOWNTIME] = ST_F_LASTCHG,
+ [ST_F_QLIMIT] = ST_F_BIN,
+ [ST_F_PID] = 0,
+ [ST_F_IID] = 0,
+ [ST_F_SID] = 0,
+ [ST_F_THROTTLE] = ST_F_LBTOT,
+ [ST_F_LBTOT] = ST_F_HRSP_1XX,
+ [ST_F_TRACKED] = 0,
+ [ST_F_TYPE] = 0,
+ [ST_F_RATE] = ST_F_RATE_MAX,
+ [ST_F_RATE_LIM] = 0,
+ [ST_F_RATE_MAX] = ST_F_LASTSESS,
+ [ST_F_CHECK_STATUS] = 0,
+ [ST_F_CHECK_CODE] = 0,
+ [ST_F_CHECK_DURATION] = 0,
+ [ST_F_HRSP_1XX] = ST_F_HRSP_2XX,
+ [ST_F_HRSP_2XX] = ST_F_HRSP_3XX,
+ [ST_F_HRSP_3XX] = ST_F_HRSP_4XX,
+ [ST_F_HRSP_4XX] = ST_F_HRSP_5XX,
+ [ST_F_HRSP_5XX] = ST_F_HRSP_OTHER,
+ [ST_F_HRSP_OTHER] = 0,
+ [ST_F_HANAFAIL] = 0,
+ [ST_F_REQ_RATE] = 0,
+ [ST_F_REQ_RATE_MAX] = 0,
+ [ST_F_REQ_TOT] = 0,
+ [ST_F_CLI_ABRT] = ST_F_SRV_ABRT,
+ [ST_F_SRV_ABRT] = ST_F_WEIGHT,
+ [ST_F_COMP_IN] = 0,
+ [ST_F_COMP_OUT] = 0,
+ [ST_F_COMP_BYP] = 0,
+ [ST_F_COMP_RSP] = 0,
+ [ST_F_LASTSESS] = ST_F_QCUR,
+ [ST_F_LAST_CHK] = 0,
+ [ST_F_LAST_AGT] = 0,
+ [ST_F_QTIME] = ST_F_CTIME,
+ [ST_F_CTIME] = ST_F_RTIME,
+ [ST_F_RTIME] = ST_F_TTIME,
+ [ST_F_TTIME] = ST_F_CONNECT,
+ [ST_F_AGENT_STATUS] = 0,
+ [ST_F_AGENT_CODE] = 0,
+ [ST_F_AGENT_DURATION] = 0,
+ [ST_F_CHECK_DESC] = 0,
+ [ST_F_AGENT_DESC] = 0,
+ [ST_F_CHECK_RISE] = 0,
+ [ST_F_CHECK_FALL] = 0,
+ [ST_F_CHECK_HEALTH] = 0,
+ [ST_F_AGENT_RISE] = 0,
+ [ST_F_AGENT_FALL] = 0,
+ [ST_F_AGENT_HEALTH] = 0,
+ [ST_F_ADDR] = 0,
+ [ST_F_COOKIE] = 0,
+ [ST_F_MODE] = 0,
+ [ST_F_ALGO] = 0,
+ [ST_F_CONN_RATE] = 0,
+ [ST_F_CONN_RATE_MAX] = 0,
+ [ST_F_CONN_TOT] = 0,
+ [ST_F_INTERCEPTED] = 0,
+ [ST_F_DCON] = 0,
+ [ST_F_DSES] = 0,
+ [ST_F_WREW] = ST_F_CLI_ABRT,
+ [ST_F_CONNECT] = ST_F_REUSE,
+ [ST_F_REUSE] = ST_F_DRESP,
+ [ST_F_CACHE_LOOKUPS] = 0,
+ [ST_F_CACHE_HITS] = 0,
+};
+
+/* Name of all info fields */
+const struct ist promex_inf_metric_names[INF_TOTAL_FIELDS] = {
+ [INF_NAME] = IST("name"),
+ [INF_VERSION] = IST("version"),
+ [INF_RELEASE_DATE] = IST("release_date"),
+ [INF_NBTHREAD] = IST("nbthread"),
+ [INF_NBPROC] = IST("nbproc"),
+ [INF_PROCESS_NUM] = IST("relative_process_id"),
+ [INF_PID] = IST("pid"),
+ [INF_UPTIME] = IST("uptime"),
+ [INF_UPTIME_SEC] = IST("uptime_seconds"),
+ [INF_MEMMAX_MB] = IST("max_memory"),
+ [INF_POOL_ALLOC_MB] = IST("pool_allocated_total"),
+ [INF_POOL_USED_MB] = IST("pool_used_total"),
+ [INF_POOL_FAILED] = IST("pool_failures_total"),
+ [INF_ULIMIT_N] = IST("max_fds"),
+ [INF_MAXSOCK] = IST("max_sockets"),
+ [INF_MAXCONN] = IST("max_connections"),
+ [INF_HARD_MAXCONN] = IST("hard_max_connections"),
+ [INF_CURR_CONN] = IST("current_connections"),
+ [INF_CUM_CONN] = IST("connections_total"),
+ [INF_CUM_REQ] = IST("requests_total"),
+ [INF_MAX_SSL_CONNS] = IST("max_ssl_connections"),
+ [INF_CURR_SSL_CONNS] = IST("current_ssl_connections"),
+ [INF_CUM_SSL_CONNS] = IST("ssl_connections_total"),
+ [INF_MAXPIPES] = IST("max_pipes"),
+ [INF_PIPES_USED] = IST("pipes_used_total"),
+ [INF_PIPES_FREE] = IST("pipes_free_total"),
+ [INF_CONN_RATE] = IST("current_connection_rate"),
+ [INF_CONN_RATE_LIMIT] = IST("limit_connection_rate"),
+ [INF_MAX_CONN_RATE] = IST("max_connection_rate"),
+ [INF_SESS_RATE] = IST("current_session_rate"),
+ [INF_SESS_RATE_LIMIT] = IST("limit_session_rate"),
+ [INF_MAX_SESS_RATE] = IST("max_session_rate"),
+ [INF_SSL_RATE] = IST("current_ssl_rate"),
+ [INF_SSL_RATE_LIMIT] = IST("limit_ssl_rate"),
+ [INF_MAX_SSL_RATE] = IST("max_ssl_rate"),
+ [INF_SSL_FRONTEND_KEY_RATE] = IST("current_frontend_ssl_key_rate"),
+ [INF_SSL_FRONTEND_MAX_KEY_RATE] = IST("max_frontend_ssl_key_rate"),
+ [INF_SSL_FRONTEND_SESSION_REUSE_PCT] = IST("frontent_ssl_reuse"),
+ [INF_SSL_BACKEND_KEY_RATE] = IST("current_backend_ssl_key_rate"),
+ [INF_SSL_BACKEND_MAX_KEY_RATE] = IST("max_backend_ssl_key_rate"),
+ [INF_SSL_CACHE_LOOKUPS] = IST("ssl_cache_lookups"),
+ [INF_SSL_CACHE_MISSES] = IST("ssl_cache_misses"),
+ [INF_COMPRESS_BPS_IN] = IST("http_comp_bytes_in_total"),
+ [INF_COMPRESS_BPS_OUT] = IST("http_comp_bytes_out_total"),
+ [INF_COMPRESS_BPS_RATE_LIM] = IST("limit_http_comp"),
+ [INF_ZLIB_MEM_USAGE] = IST("current_zlib_memory"),
+ [INF_MAX_ZLIB_MEM_USAGE] = IST("max_zlib_memory"),
+ [INF_TASKS] = IST("current_tasks"),
+ [INF_RUN_QUEUE] = IST("current_run_queue"),
+ [INF_IDLE_PCT] = IST("idle_time_percent"),
+ [INF_NODE] = IST("node"),
+ [INF_DESCRIPTION] = IST("description"),
+ [INF_STOPPING] = IST("stopping"),
+ [INF_JOBS] = IST("jobs"),
+ [INF_UNSTOPPABLE_JOBS] = IST("unstoppable_jobs"),
+ [INF_LISTENERS] = IST("listeners"),
+ [INF_ACTIVE_PEERS] = IST("active_peers"),
+ [INF_CONNECTED_PEERS] = IST("connected_peers"),
+ [INF_DROPPED_LOGS] = IST("dropped_logs_total"),
+ [INF_BUSY_POLLING] = IST("busy_polling_enabled"),
+};
+
+/* Name of all stats fields */
+const struct ist promex_st_metric_names[ST_F_TOTAL_FIELDS] = {
+ [ST_F_PXNAME] = IST("proxy_name"),
+ [ST_F_SVNAME] = IST("service_name"),
+ [ST_F_QCUR] = IST("current_queue"),
+ [ST_F_QMAX] = IST("max_queue"),
+ [ST_F_SCUR] = IST("current_sessions"),
+ [ST_F_SMAX] = IST("max_sessions"),
+ [ST_F_SLIM] = IST("limit_sessions"),
+ [ST_F_STOT] = IST("sessions_total"),
+ [ST_F_BIN] = IST("bytes_in_total"),
+ [ST_F_BOUT] = IST("bytes_out_total"),
+ [ST_F_DREQ] = IST("requests_denied_total"),
+ [ST_F_DRESP] = IST("responses_denied_total"),
+ [ST_F_EREQ] = IST("request_errors_total"),
+ [ST_F_ECON] = IST("connection_errors_total"),
+ [ST_F_ERESP] = IST("response_errors_total"),
+ [ST_F_WRETR] = IST("retry_warnings_total"),
+ [ST_F_WREDIS] = IST("redispatch_warnings_total"),
+ [ST_F_STATUS] = IST("status"),
+ [ST_F_WEIGHT] = IST("weight"),
+ [ST_F_ACT] = IST("active_servers"),
+ [ST_F_BCK] = IST("backup_servers"),
+ [ST_F_CHKFAIL] = IST("check_failures_total"),
+ [ST_F_CHKDOWN] = IST("check_up_down_total"),
+ [ST_F_LASTCHG] = IST("check_last_change_seconds"),
+ [ST_F_DOWNTIME] = IST("downtime_seconds_total"),
+ [ST_F_QLIMIT] = IST("queue_limit"),
+ [ST_F_PID] = IST("pid"),
+ [ST_F_IID] = IST("proxy_id"),
+ [ST_F_SID] = IST("server_id"),
+ [ST_F_THROTTLE] = IST("current_throttle"),
+ [ST_F_LBTOT] = IST("loadbalanced_total"),
+ [ST_F_TRACKED] = IST("tracked"),
+ [ST_F_TYPE] = IST("type"),
+ [ST_F_RATE] = IST("current_session_rate"),
+ [ST_F_RATE_LIM] = IST("limit_session_rate"),
+ [ST_F_RATE_MAX] = IST("max_session_rate"),
+ [ST_F_CHECK_STATUS] = IST("check_status"),
+ [ST_F_CHECK_CODE] = IST("check_code"),
+ [ST_F_CHECK_DURATION] = IST("check_duration_milliseconds"),
+ [ST_F_HRSP_1XX] = IST("http_responses_total"),
+ [ST_F_HRSP_2XX] = IST("http_responses_total"),
+ [ST_F_HRSP_3XX] = IST("http_responses_total"),
+ [ST_F_HRSP_4XX] = IST("http_responses_total"),
+ [ST_F_HRSP_5XX] = IST("http_responses_total"),
+ [ST_F_HRSP_OTHER] = IST("http_responses_total"),
+ [ST_F_HANAFAIL] = IST("check_analyses_failures_total"),
+ [ST_F_REQ_RATE] = IST("http_requests_rate_current"),
+ [ST_F_REQ_RATE_MAX] = IST("http_requests_rate_max"),
+ [ST_F_REQ_TOT] = IST("http_requests_total"),
+ [ST_F_CLI_ABRT] = IST("client_aborts_total"),
+ [ST_F_SRV_ABRT] = IST("server_aborts_total"),
+ [ST_F_COMP_IN] = IST("http_comp_bytes_in_total"),
+ [ST_F_COMP_OUT] = IST("http_comp_bytes_out_total"),
+ [ST_F_COMP_BYP] = IST("http_comp_bytes_bypassed_total"),
+ [ST_F_COMP_RSP] = IST("http_comp_responses_total"),
+ [ST_F_LASTSESS] = IST("last_session_seconds"),
+ [ST_F_LAST_CHK] = IST("check_last_content"),
+ [ST_F_LAST_AGT] = IST("agentcheck_last_content"),
+ [ST_F_QTIME] = IST("http_queue_time_average_seconds"),
+ [ST_F_CTIME] = IST("http_connect_time_average_seconds"),
+ [ST_F_RTIME] = IST("http_response_time_average_seconds"),
+ [ST_F_TTIME] = IST("http_total_time_average_seconds"),
+ [ST_F_AGENT_STATUS] = IST("agentcheck_status"),
+ [ST_F_AGENT_CODE] = IST("agentcheck_code"),
+ [ST_F_AGENT_DURATION] = IST("agentcheck_duration_milliseconds"),
+ [ST_F_CHECK_DESC] = IST("check_description"),
+ [ST_F_AGENT_DESC] = IST("agentcheck_description"),
+ [ST_F_CHECK_RISE] = IST("check_rise"),
+ [ST_F_CHECK_FALL] = IST("check_fall"),
+ [ST_F_CHECK_HEALTH] = IST("check_value"),
+ [ST_F_AGENT_RISE] = IST("agentcheck_rise"),
+ [ST_F_AGENT_FALL] = IST("agentcheck_fall"),
+ [ST_F_AGENT_HEALTH] = IST("agentcheck_value"),
+ [ST_F_ADDR] = IST("address"),
+ [ST_F_COOKIE] = IST("cookie"),
+ [ST_F_MODE] = IST("mode"),
+ [ST_F_ALGO] = IST("loadbalance_algorithm"),
+ [ST_F_CONN_RATE] = IST("connections_rate_current"),
+ [ST_F_CONN_RATE_MAX] = IST("connections_rate_max"),
+ [ST_F_CONN_TOT] = IST("connections_total"),
+ [ST_F_INTERCEPTED] = IST("intercepted_requests_total"),
+ [ST_F_DCON] = IST("denied_connections_total"),
+ [ST_F_DSES] = IST("denied_sessions_total"),
+ [ST_F_WREW] = IST("failed_header_rewriting_total"),
+ [ST_F_CONNECT] = IST("connection_attempts_total"),
+ [ST_F_REUSE] = IST("connection_reuses_total"),
+ [ST_F_CACHE_LOOKUPS] = IST("http_cache_lookups_total"),
+ [ST_F_CACHE_HITS] = IST("http_cache_hits_total"),
+};
+
+/* Description of all info fields */
+const struct ist promex_inf_metric_desc[INF_TOTAL_FIELDS] = {
+ [INF_NAME] = IST("Product name."),
+ [INF_VERSION] = IST("HAProxy version."),
+ [INF_RELEASE_DATE] = IST("HAProxy realease date."),
+ [INF_NBTHREAD] = IST("Configured number of threads."),
+ [INF_NBPROC] = IST("Configured number of processes."),
+ [INF_PROCESS_NUM] = IST("Relative process id, starting at 1."),
+ [INF_PID] = IST("HAProxy PID."),
+ [INF_UPTIME] = IST("Uptime in a human readable format."),
+ [INF_UPTIME_SEC] = IST("Uptime in seconds."),
+ [INF_MEMMAX_MB] = IST("Per-process memory limit (in MB); 0=unset."),
+ [INF_POOL_ALLOC_MB] = IST("Total amount of memory allocated in pools (in MB)."),
+ [INF_POOL_USED_MB] = IST("Total amount of memory used in pools (in MB)."),
+ [INF_POOL_FAILED] = IST("Total number of failed pool allocations."),
+ [INF_ULIMIT_N] = IST("Maximum number of open file descriptors; 0=unset."),
+ [INF_MAXSOCK] = IST("Maximum numer of open sockets."),
+ [INF_MAXCONN] = IST("Maximum number of concurrent connections."),
+ [INF_HARD_MAXCONN] = IST("Initial Maximum number of concurrent connections."),
+ [INF_CURR_CONN] = IST("Number of active sessions."),
+ [INF_CUM_CONN] = IST("Total number of terminated sessions."),
+ [INF_CUM_REQ] = IST("Total number of requests (TCP or HTTP)."),
+ [INF_MAX_SSL_CONNS] = IST("Configured maximum number of concurrent SSL connections."),
+ [INF_CURR_SSL_CONNS] = IST("Number of opened SSL connections."),
+ [INF_CUM_SSL_CONNS] = IST("Total number of opened SSL connections."),
+ [INF_MAXPIPES] = IST("Configured maximum number of pipes."),
+ [INF_PIPES_USED] = IST("Number of pipes in used."),
+ [INF_PIPES_FREE] = IST("Number of pipes unused."),
+ [INF_CONN_RATE] = IST("Current number of connections per second over last elapsed second."),
+ [INF_CONN_RATE_LIMIT] = IST("Configured maximum number of connections per second."),
+ [INF_MAX_CONN_RATE] = IST("Maximum observed number of connections per second."),
+ [INF_SESS_RATE] = IST("Current number of sessions per second over last elapsed second."),
+ [INF_SESS_RATE_LIMIT] = IST("Configured maximum number of sessions per second."),
+ [INF_MAX_SESS_RATE] = IST("Maximum observed number of sessions per second."),
+ [INF_SSL_RATE] = IST("Current number of SSL sessions per second over last elapsed second."),
+ [INF_SSL_RATE_LIMIT] = IST("Configured maximum number of SSL sessions per second."),
+ [INF_MAX_SSL_RATE] = IST("Maximum observed number of SSL sessions per second."),
+ [INF_SSL_FRONTEND_KEY_RATE] = IST("Current frontend SSL Key computation per second over last elapsed second."),
+ [INF_SSL_FRONTEND_MAX_KEY_RATE] = IST("Maximum observed frontend SSL Key computation per second."),
+ [INF_SSL_FRONTEND_SESSION_REUSE_PCT] = IST("SSL session reuse ratio (percent)."),
+ [INF_SSL_BACKEND_KEY_RATE] = IST("Current backend SSL Key computation per second over last elapsed second."),
+ [INF_SSL_BACKEND_MAX_KEY_RATE] = IST("Maximum observed backend SSL Key computation per second."),
+ [INF_SSL_CACHE_LOOKUPS] = IST("Total number of SSL session cache lookups."),
+ [INF_SSL_CACHE_MISSES] = IST("Total number of SSL session cache misses."),
+ [INF_COMPRESS_BPS_IN] = IST("Number of bytes per second over last elapsed second, before http compression."),
+ [INF_COMPRESS_BPS_OUT] = IST("Number of bytes per second over last elapsed second, after http compression."),
+ [INF_COMPRESS_BPS_RATE_LIM] = IST("Configured maximum input compression rate in bytes."),
+ [INF_ZLIB_MEM_USAGE] = IST("Current memory used for zlib in bytes."),
+ [INF_MAX_ZLIB_MEM_USAGE] = IST("Configured maximum amount of memory for zlib in bytes."),
+ [INF_TASKS] = IST("Current number of tasks."),
+ [INF_RUN_QUEUE] = IST("Current number of tasks in the run-queue."),
+ [INF_IDLE_PCT] = IST("Idle to total ratio over last sample (percent)."),
+ [INF_NODE] = IST("Node name."),
+ [INF_DESCRIPTION] = IST("Node description."),
+ [INF_STOPPING] = IST("Non zero means stopping in progress."),
+ [INF_JOBS] = IST("Current number of active jobs (listeners, sessions, open devices)."),
+ [INF_UNSTOPPABLE_JOBS] = IST("Current number of active jobs that can't be stopped during a soft stop."),
+ [INF_LISTENERS] = IST("Current number of active listeners."),
+ [INF_ACTIVE_PEERS] = IST("Current number of active peers."),
+ [INF_CONNECTED_PEERS] = IST("Current number of connected peers."),
+ [INF_DROPPED_LOGS] = IST("Total number of dropped logs."),
+ [INF_BUSY_POLLING] = IST("Non zero if the busy polling is enabled."),
+};
+
+/* Description of all stats fields */
+const struct ist promex_st_metric_desc[ST_F_TOTAL_FIELDS] = {
+ [ST_F_PXNAME] = IST("The proxy name."),
+ [ST_F_SVNAME] = IST("The service name (FRONTEND for frontend, BACKEND for backend, any name for server/listener)."),
+ [ST_F_QCUR] = IST("Current number of queued requests."),
+ [ST_F_QMAX] = IST("Maximum observed number of queued requests."),
+ [ST_F_SCUR] = IST("Current number of active sessions."),
+ [ST_F_SMAX] = IST("Maximum observed number of active sessions."),
+ [ST_F_SLIM] = IST("Configured session limit."),
+ [ST_F_STOT] = IST("Total number of sessions."),
+ [ST_F_BIN] = IST("Current total of incoming bytes."),
+ [ST_F_BOUT] = IST("Current total of outgoing bytes."),
+ [ST_F_DREQ] = IST("Total number of denied requests."),
+ [ST_F_DRESP] = IST("Total number of denied responses."),
+ [ST_F_EREQ] = IST("Total number of request errors."),
+ [ST_F_ECON] = IST("Total number of connection errors."),
+ [ST_F_ERESP] = IST("Total number of response errors."),
+ [ST_F_WRETR] = IST("Total number of retry warnings."),
+ [ST_F_WREDIS] = IST("Total number of redispatch warnings."),
+ [ST_F_STATUS] = IST("Current status of the service (frontend: 0=STOP, 1=UP, 2=FULL - backend/server: 0=DOWN, 1=UP)."),
+ [ST_F_WEIGHT] = IST("Service weight."),
+ [ST_F_ACT] = IST("Current number of active servers."),
+ [ST_F_BCK] = IST("Current number of backup servers."),
+ [ST_F_CHKFAIL] = IST("Total number of failed check (Only counts checks failed when the server is up)."),
+ [ST_F_CHKDOWN] = IST("Total number of UP->DOWN transitions."),
+ [ST_F_LASTCHG] = IST("Number of seconds since the last UP<->DOWN transition."),
+ [ST_F_DOWNTIME] = IST("Total downtime (in seconds) for the service."),
+ [ST_F_QLIMIT] = IST("Configured maxqueue for the server (0 meaning no limit)."),
+ [ST_F_PID] = IST("Process id (0 for first instance, 1 for second, ...)"),
+ [ST_F_IID] = IST("Unique proxy id."),
+ [ST_F_SID] = IST("Server id (unique inside a proxy)."),
+ [ST_F_THROTTLE] = IST("Current throttle percentage for the server, when slowstart is active, or no value if not in slowstart."),
+ [ST_F_LBTOT] = IST("Total number of times a service was selected, either for new sessions, or when redispatching."),
+ [ST_F_TRACKED] = IST("Id of proxy/server if tracking is enabled."),
+ [ST_F_TYPE] = IST("Service type (0=frontend, 1=backend, 2=server, 3=socket/listener)."),
+ [ST_F_RATE] = IST("Current number of sessions per second over last elapsed second."),
+ [ST_F_RATE_LIM] = IST("Configured limit on new sessions per second."),
+ [ST_F_RATE_MAX] = IST("Maximum observed number of sessions per second."),
+ [ST_F_CHECK_STATUS] = IST("Status of last health check (If a check is running, the status will be reported, prefixed with '* ')."),
+ [ST_F_CHECK_CODE] = IST("layer5-7 code, if available of the last health check."),
+ [ST_F_CHECK_DURATION] = IST("Time in ms took to finish last health check."),
+ [ST_F_HRSP_1XX] = IST("Total number of HTTP responses."),
+ [ST_F_HRSP_2XX] = IST("Total number of HTTP responses."),
+ [ST_F_HRSP_3XX] = IST("Total number of HTTP responses."),
+ [ST_F_HRSP_4XX] = IST("Total number of HTTP responses."),
+ [ST_F_HRSP_5XX] = IST("Total number of HTTP responses."),
+ [ST_F_HRSP_OTHER] = IST("Total number of HTTP responses."),
+ [ST_F_HANAFAIL] = IST("Total number of failed health checks."),
+ [ST_F_REQ_RATE] = IST("Current number of HTTP requests per second over last elapsed second."),
+ [ST_F_REQ_RATE_MAX] = IST("Maximum observed number of HTTP requests per second."),
+ [ST_F_REQ_TOT] = IST("Total number of HTTP requests received."),
+ [ST_F_CLI_ABRT] = IST("Total number of data transfers aborted by the client."),
+ [ST_F_SRV_ABRT] = IST("Total number of data transfers aborted by the server."),
+ [ST_F_COMP_IN] = IST("Total number of HTTP response bytes fed to the compressor."),
+ [ST_F_COMP_OUT] = IST("Total number of HTTP response bytes emitted by the compressor."),
+ [ST_F_COMP_BYP] = IST("Total number of bytes that bypassed the HTTP compressor (CPU/BW limit)."),
+ [ST_F_COMP_RSP] = IST("Total number of HTTP responses that were compressed."),
+ [ST_F_LASTSESS] = IST("Number of seconds since last session assigned to server/backend."),
+ [ST_F_LAST_CHK] = IST("Last health check contents or textual error"),
+ [ST_F_LAST_AGT] = IST("Last agent check contents or textual error"),
+ [ST_F_QTIME] = IST("Avg. queue time for last 1024 successful connections."),
+ [ST_F_CTIME] = IST("Avg. connect time for last 1024 successful connections."),
+ [ST_F_RTIME] = IST("Avg. response time for last 1024 successful connections."),
+ [ST_F_TTIME] = IST("Avg. total time for last 1024 successful connections."),
+ [ST_F_AGENT_STATUS] = IST("Status of last agent check."),
+ [ST_F_AGENT_CODE] = IST("Numeric code reported by agent if any (unused for now)."),
+ [ST_F_AGENT_DURATION] = IST("Time in ms taken to finish last agent check."),
+ [ST_F_CHECK_DESC] = IST("Short human-readable description of the last health status."),
+ [ST_F_AGENT_DESC] = IST("Short human-readable description of the last agent status."),
+ [ST_F_CHECK_RISE] = IST("Server's \"rise\" parameter used by health checks"),
+ [ST_F_CHECK_FALL] = IST("Server's \"fall\" parameter used by health checks"),
+ [ST_F_CHECK_HEALTH] = IST("Server's health check value between 0 and rise+fall-1"),
+ [ST_F_AGENT_RISE] = IST("Agent's \"rise\" parameter, normally 1."),
+ [ST_F_AGENT_FALL] = IST("Agent's \"fall\" parameter, normally 1."),
+ [ST_F_AGENT_HEALTH] = IST("Agent's health parameter, between 0 and rise+fall-1"),
+ [ST_F_ADDR] = IST("address:port or \"unix\". IPv6 has brackets around the address."),
+ [ST_F_COOKIE] = IST("Server's cookie value or backend's cookie name."),
+ [ST_F_MODE] = IST("Proxy mode (tcp, http, health, unknown)."),
+ [ST_F_ALGO] = IST("Load balancing algorithm."),
+ [ST_F_CONN_RATE] = IST("Current number of connections per second over the last elapsed second."),
+ [ST_F_CONN_RATE_MAX] = IST("Maximum observed number of connections per second."),
+ [ST_F_CONN_TOT] = IST("Total number of connections."),
+ [ST_F_INTERCEPTED] = IST("Total number of intercepted HTTP requests."),
+ [ST_F_DCON] = IST("Total number of requests denied by \"tcp-request connection\" rules."),
+ [ST_F_DSES] = IST("Total number of requests denied by \"tcp-request session\" rules."),
+ [ST_F_WREW] = IST("Total number of failed header rewriting warnings."),
+ [ST_F_CONNECT] = IST("Total number of connection establishment attempts."),
+ [ST_F_REUSE] = IST("Total number of connection reuses."),
+ [ST_F_CACHE_LOOKUPS] = IST("Total number of HTTP cache lookups."),
+ [ST_F_CACHE_HITS] = IST("Total number of HTTP cache hits."),
+};
+
+/* Specific labels for all info fields. Empty by default. */
+const struct ist promex_inf_metric_labels[INF_TOTAL_FIELDS] = {
+ [INF_NAME] = IST(""),
+ [INF_VERSION] = IST(""),
+ [INF_RELEASE_DATE] = IST(""),
+ [INF_NBTHREAD] = IST(""),
+ [INF_NBPROC] = IST(""),
+ [INF_PROCESS_NUM] = IST(""),
+ [INF_PID] = IST(""),
+ [INF_UPTIME] = IST(""),
+ [INF_UPTIME_SEC] = IST(""),
+ [INF_MEMMAX_MB] = IST(""),
+ [INF_POOL_ALLOC_MB] = IST(""),
+ [INF_POOL_USED_MB] = IST(""),
+ [INF_POOL_FAILED] = IST(""),
+ [INF_ULIMIT_N] = IST(""),
+ [INF_MAXSOCK] = IST(""),
+ [INF_MAXCONN] = IST(""),
+ [INF_HARD_MAXCONN] = IST(""),
+ [INF_CURR_CONN] = IST(""),
+ [INF_CUM_CONN] = IST(""),
+ [INF_CUM_REQ] = IST(""),
+ [INF_MAX_SSL_CONNS] = IST(""),
+ [INF_CURR_SSL_CONNS] = IST(""),
+ [INF_CUM_SSL_CONNS] = IST(""),
+ [INF_MAXPIPES] = IST(""),
+ [INF_PIPES_USED] = IST(""),
+ [INF_PIPES_FREE] = IST(""),
+ [INF_CONN_RATE] = IST(""),
+ [INF_CONN_RATE_LIMIT] = IST(""),
+ [INF_MAX_CONN_RATE] = IST(""),
+ [INF_SESS_RATE] = IST(""),
+ [INF_SESS_RATE_LIMIT] = IST(""),
+ [INF_MAX_SESS_RATE] = IST(""),
+ [INF_SSL_RATE] = IST(""),
+ [INF_SSL_RATE_LIMIT] = IST(""),
+ [INF_MAX_SSL_RATE] = IST(""),
+ [INF_SSL_FRONTEND_KEY_RATE] = IST(""),
+ [INF_SSL_FRONTEND_MAX_KEY_RATE] = IST(""),
+ [INF_SSL_FRONTEND_SESSION_REUSE_PCT] = IST(""),
+ [INF_SSL_BACKEND_KEY_RATE] = IST(""),
+ [INF_SSL_BACKEND_MAX_KEY_RATE] = IST(""),
+ [INF_SSL_CACHE_LOOKUPS] = IST(""),
+ [INF_SSL_CACHE_MISSES] = IST(""),
+ [INF_COMPRESS_BPS_IN] = IST(""),
+ [INF_COMPRESS_BPS_OUT] = IST(""),
+ [INF_COMPRESS_BPS_RATE_LIM] = IST(""),
+ [INF_ZLIB_MEM_USAGE] = IST(""),
+ [INF_MAX_ZLIB_MEM_USAGE] = IST(""),
+ [INF_TASKS] = IST(""),
+ [INF_RUN_QUEUE] = IST(""),
+ [INF_IDLE_PCT] = IST(""),
+ [INF_NODE] = IST(""),
+ [INF_DESCRIPTION] = IST(""),
+ [INF_STOPPING] = IST(""),
+ [INF_JOBS] = IST(""),
+ [INF_UNSTOPPABLE_JOBS] = IST(""),
+ [INF_LISTENERS] = IST(""),
+ [INF_ACTIVE_PEERS] = IST(""),
+ [INF_CONNECTED_PEERS] = IST(""),
+ [INF_DROPPED_LOGS] = IST(""),
+ [INF_BUSY_POLLING] = IST(""),
+};
+
+/* Specific labels for all stats fields. Empty by default. */
+const struct ist promex_st_metric_labels[ST_F_TOTAL_FIELDS] = {
+ [ST_F_PXNAME] = IST(""),
+ [ST_F_SVNAME] = IST(""),
+ [ST_F_QCUR] = IST(""),
+ [ST_F_QMAX] = IST(""),
+ [ST_F_SCUR] = IST(""),
+ [ST_F_SMAX] = IST(""),
+ [ST_F_SLIM] = IST(""),
+ [ST_F_STOT] = IST(""),
+ [ST_F_BIN] = IST(""),
+ [ST_F_BOUT] = IST(""),
+ [ST_F_DREQ] = IST(""),
+ [ST_F_DRESP] = IST(""),
+ [ST_F_EREQ] = IST(""),
+ [ST_F_ECON] = IST(""),
+ [ST_F_ERESP] = IST(""),
+ [ST_F_WRETR] = IST(""),
+ [ST_F_WREDIS] = IST(""),
+ [ST_F_STATUS] = IST(""),
+ [ST_F_WEIGHT] = IST(""),
+ [ST_F_ACT] = IST(""),
+ [ST_F_BCK] = IST(""),
+ [ST_F_CHKFAIL] = IST(""),
+ [ST_F_CHKDOWN] = IST(""),
+ [ST_F_LASTCHG] = IST(""),
+ [ST_F_DOWNTIME] = IST(""),
+ [ST_F_QLIMIT] = IST(""),
+ [ST_F_PID] = IST(""),
+ [ST_F_IID] = IST(""),
+ [ST_F_SID] = IST(""),
+ [ST_F_THROTTLE] = IST(""),
+ [ST_F_LBTOT] = IST(""),
+ [ST_F_TRACKED] = IST(""),
+ [ST_F_TYPE] = IST(""),
+ [ST_F_RATE] = IST(""),
+ [ST_F_RATE_LIM] = IST(""),
+ [ST_F_RATE_MAX] = IST(""),
+ [ST_F_CHECK_STATUS] = IST(""),
+ [ST_F_CHECK_CODE] = IST(""),
+ [ST_F_CHECK_DURATION] = IST(""),
+ [ST_F_HRSP_1XX] = IST("code=\"1xx\""),
+ [ST_F_HRSP_2XX] = IST("code=\"2xx\""),
+ [ST_F_HRSP_3XX] = IST("code=\"3xx\""),
+ [ST_F_HRSP_4XX] = IST("code=\"4xx\""),
+ [ST_F_HRSP_5XX] = IST("code=\"5xx\""),
+ [ST_F_HRSP_OTHER] = IST("code=\"other\""),
+ [ST_F_HANAFAIL] = IST(""),
+ [ST_F_REQ_RATE] = IST(""),
+ [ST_F_REQ_RATE_MAX] = IST(""),
+ [ST_F_REQ_TOT] = IST(""),
+ [ST_F_CLI_ABRT] = IST(""),
+ [ST_F_SRV_ABRT] = IST(""),
+ [ST_F_COMP_IN] = IST(""),
+ [ST_F_COMP_OUT] = IST(""),
+ [ST_F_COMP_BYP] = IST(""),
+ [ST_F_COMP_RSP] = IST(""),
+ [ST_F_LASTSESS] = IST(""),
+ [ST_F_LAST_CHK] = IST(""),
+ [ST_F_LAST_AGT] = IST(""),
+ [ST_F_QTIME] = IST(""),
+ [ST_F_CTIME] = IST(""),
+ [ST_F_RTIME] = IST(""),
+ [ST_F_TTIME] = IST(""),
+ [ST_F_AGENT_STATUS] = IST(""),
+ [ST_F_AGENT_CODE] = IST(""),
+ [ST_F_AGENT_DURATION] = IST(""),
+ [ST_F_CHECK_DESC] = IST(""),
+ [ST_F_AGENT_DESC] = IST(""),
+ [ST_F_CHECK_RISE] = IST(""),
+ [ST_F_CHECK_FALL] = IST(""),
+ [ST_F_CHECK_HEALTH] = IST(""),
+ [ST_F_AGENT_RISE] = IST(""),
+ [ST_F_AGENT_FALL] = IST(""),
+ [ST_F_AGENT_HEALTH] = IST(""),
+ [ST_F_ADDR] = IST(""),
+ [ST_F_COOKIE] = IST(""),
+ [ST_F_MODE] = IST(""),
+ [ST_F_ALGO] = IST(""),
+ [ST_F_CONN_RATE] = IST(""),
+ [ST_F_CONN_RATE_MAX] = IST(""),
+ [ST_F_CONN_TOT] = IST(""),
+ [ST_F_INTERCEPTED] = IST(""),
+ [ST_F_DCON] = IST(""),
+ [ST_F_DSES] = IST(""),
+ [ST_F_WREW] = IST(""),
+ [ST_F_CONNECT] = IST(""),
+ [ST_F_REUSE] = IST(""),
+ [ST_F_CACHE_LOOKUPS] = IST(""),
+ [ST_F_CACHE_HITS] = IST(""),
+};
+
+/* Type for all info fields. "untyped" is used for unsupported field. */
+const struct ist promex_inf_metric_types[INF_TOTAL_FIELDS] = {
+ [INF_NAME] = IST("untyped"),
+ [INF_VERSION] = IST("untyped"),
+ [INF_RELEASE_DATE] = IST("untyped"),
+ [INF_NBTHREAD] = IST("counter"),
+ [INF_NBPROC] = IST("counter"),
+ [INF_PROCESS_NUM] = IST("counter"),
+ [INF_PID] = IST("untyped"),
+ [INF_UPTIME] = IST("untyped"),
+ [INF_UPTIME_SEC] = IST("counter"),
+ [INF_MEMMAX_MB] = IST("counter"),
+ [INF_POOL_ALLOC_MB] = IST("gauge"),
+ [INF_POOL_USED_MB] = IST("gauge"),
+ [INF_POOL_FAILED] = IST("counter"),
+ [INF_ULIMIT_N] = IST("counter"),
+ [INF_MAXSOCK] = IST("gauge"),
+ [INF_MAXCONN] = IST("gauge"),
+ [INF_HARD_MAXCONN] = IST("gauge"),
+ [INF_CURR_CONN] = IST("gauge"),
+ [INF_CUM_CONN] = IST("counter"),
+ [INF_CUM_REQ] = IST("counter"),
+ [INF_MAX_SSL_CONNS] = IST("counter"),
+ [INF_CURR_SSL_CONNS] = IST("gauge"),
+ [INF_CUM_SSL_CONNS] = IST("counter"),
+ [INF_MAXPIPES] = IST("counter"),
+ [INF_PIPES_USED] = IST("gauge"),
+ [INF_PIPES_FREE] = IST("gauge"),
+ [INF_CONN_RATE] = IST("gauge"),
+ [INF_CONN_RATE_LIMIT] = IST("counter"),
+ [INF_MAX_CONN_RATE] = IST("counter"),
+ [INF_SESS_RATE] = IST("gauge"),
+ [INF_SESS_RATE_LIMIT] = IST("counter"),
+ [INF_MAX_SESS_RATE] = IST("counter"),
+ [INF_SSL_RATE] = IST("gauge"),
+ [INF_SSL_RATE_LIMIT] = IST("counter"),
+ [INF_MAX_SSL_RATE] = IST("counter"),
+ [INF_SSL_FRONTEND_KEY_RATE] = IST("gauge"),
+ [INF_SSL_FRONTEND_MAX_KEY_RATE] = IST("counter"),
+ [INF_SSL_FRONTEND_SESSION_REUSE_PCT] = IST("gauge"),
+ [INF_SSL_BACKEND_KEY_RATE] = IST("gauge"),
+ [INF_SSL_BACKEND_MAX_KEY_RATE] = IST("counter"),
+ [INF_SSL_CACHE_LOOKUPS] = IST("counter"),
+ [INF_SSL_CACHE_MISSES] = IST("counter"),
+ [INF_COMPRESS_BPS_IN] = IST("gauge"),
+ [INF_COMPRESS_BPS_OUT] = IST("gauge"),
+ [INF_COMPRESS_BPS_RATE_LIM] = IST("counter"),
+ [INF_ZLIB_MEM_USAGE] = IST("gauge"),
+ [INF_MAX_ZLIB_MEM_USAGE] = IST("counter"),
+ [INF_TASKS] = IST("gauge"),
+ [INF_RUN_QUEUE] = IST("gouge"),
+ [INF_IDLE_PCT] = IST("gauge"),
+ [INF_NODE] = IST("untyped"),
+ [INF_DESCRIPTION] = IST("untyped"),
+ [INF_STOPPING] = IST("gauge"),
+ [INF_JOBS] = IST("gauge"),
+ [INF_UNSTOPPABLE_JOBS] = IST("gauge"),
+ [INF_LISTENERS] = IST("gauge"),
+ [INF_ACTIVE_PEERS] = IST("gauge"),
+ [INF_CONNECTED_PEERS] = IST("gauge"),
+ [INF_DROPPED_LOGS] = IST("counter"),
+ [INF_BUSY_POLLING] = IST("counter"),
+};
+
+/* Type for all stats fields. "untyped" is used for unsupported field. */
+const struct ist promex_st_metric_types[ST_F_TOTAL_FIELDS] = {
+ [ST_F_PXNAME] = IST("untyped"),
+ [ST_F_SVNAME] = IST("untyped"),
+ [ST_F_QCUR] = IST("gauge"),
+ [ST_F_QMAX] = IST("counter"),
+ [ST_F_SCUR] = IST("gauge"),
+ [ST_F_SMAX] = IST("counter"),
+ [ST_F_SLIM] = IST("gauge"),
+ [ST_F_STOT] = IST("counter"),
+ [ST_F_BIN] = IST("counter"),
+ [ST_F_BOUT] = IST("counter"),
+ [ST_F_DREQ] = IST("counter"),
+ [ST_F_DRESP] = IST("counter"),
+ [ST_F_EREQ] = IST("counter"),
+ [ST_F_ECON] = IST("counter"),
+ [ST_F_ERESP] = IST("counter"),
+ [ST_F_WRETR] = IST("counter"),
+ [ST_F_WREDIS] = IST("counter"),
+ [ST_F_STATUS] = IST("gauge"),
+ [ST_F_WEIGHT] = IST("gauge"),
+ [ST_F_ACT] = IST("gauge"),
+ [ST_F_BCK] = IST("gauge"),
+ [ST_F_CHKFAIL] = IST("counter"),
+ [ST_F_CHKDOWN] = IST("counter"),
+ [ST_F_LASTCHG] = IST("gauge"),
+ [ST_F_DOWNTIME] = IST("counter"),
+ [ST_F_QLIMIT] = IST("gauge"),
+ [ST_F_PID] = IST("untyped"),
+ [ST_F_IID] = IST("untyped"),
+ [ST_F_SID] = IST("untyped"),
+ [ST_F_THROTTLE] = IST("gauge"),
+ [ST_F_LBTOT] = IST("counter"),
+ [ST_F_TRACKED] = IST("untyped"),
+ [ST_F_TYPE] = IST("untyped"),
+ [ST_F_RATE] = IST("gauge"),
+ [ST_F_RATE_LIM] = IST("gauge"),
+ [ST_F_RATE_MAX] = IST("counter"),
+ [ST_F_CHECK_STATUS] = IST("untyped"),
+ [ST_F_CHECK_CODE] = IST("untyped"),
+ [ST_F_CHECK_DURATION] = IST("gauge"),
+ [ST_F_HRSP_1XX] = IST("counter"),
+ [ST_F_HRSP_2XX] = IST("counter"),
+ [ST_F_HRSP_3XX] = IST("counter"),
+ [ST_F_HRSP_4XX] = IST("counter"),
+ [ST_F_HRSP_5XX] = IST("counter"),
+ [ST_F_HRSP_OTHER] = IST("counter"),
+ [ST_F_HANAFAIL] = IST("counter"),
+ [ST_F_REQ_RATE] = IST("gauge"),
+ [ST_F_REQ_RATE_MAX] = IST("counter"),
+ [ST_F_REQ_TOT] = IST("counter"),
+ [ST_F_CLI_ABRT] = IST("counter"),
+ [ST_F_SRV_ABRT] = IST("counter"),
+ [ST_F_COMP_IN] = IST("counter"),
+ [ST_F_COMP_OUT] = IST("counter"),
+ [ST_F_COMP_BYP] = IST("counter"),
+ [ST_F_COMP_RSP] = IST("counter"),
+ [ST_F_LASTSESS] = IST("gauge"),
+ [ST_F_LAST_CHK] = IST("untyped"),
+ [ST_F_LAST_AGT] = IST("untyped"),
+ [ST_F_QTIME] = IST("gauge"),
+ [ST_F_CTIME] = IST("gauge"),
+ [ST_F_RTIME] = IST("gauge"),
+ [ST_F_TTIME] = IST("gauge"),
+ [ST_F_AGENT_STATUS] = IST("untyped"),
+ [ST_F_AGENT_CODE] = IST("untyped"),
+ [ST_F_AGENT_DURATION] = IST("gauge"),
+ [ST_F_CHECK_DESC] = IST("untyped"),
+ [ST_F_AGENT_DESC] = IST("untyped"),
+ [ST_F_CHECK_RISE] = IST("gauge"),
+ [ST_F_CHECK_FALL] = IST("gauge"),
+ [ST_F_CHECK_HEALTH] = IST("gauge"),
+ [ST_F_AGENT_RISE] = IST("gauge"),
+ [ST_F_AGENT_FALL] = IST("gauge"),
+ [ST_F_AGENT_HEALTH] = IST("gauge"),
+ [ST_F_ADDR] = IST("untyped"),
+ [ST_F_COOKIE] = IST("untyped"),
+ [ST_F_MODE] = IST("untyped"),
+ [ST_F_ALGO] = IST("untyped"),
+ [ST_F_CONN_RATE] = IST("gauge"),
+ [ST_F_CONN_RATE_MAX] = IST("counter"),
+ [ST_F_CONN_TOT] = IST("counter"),
+ [ST_F_INTERCEPTED] = IST("counter"),
+ [ST_F_DCON] = IST("counter"),
+ [ST_F_DSES] = IST("counter"),
+ [ST_F_WREW] = IST("counter"),
+ [ST_F_CONNECT] = IST("counter"),
+ [ST_F_REUSE] = IST("counter"),
+ [ST_F_CACHE_LOOKUPS] = IST("counter"),
+ [ST_F_CACHE_HITS] = IST("counter"),
+};
+
+/* Return the server status: 1=UP and 0=DOWN. */
+static int promex_srv_status(struct server *sv)
+{
+ struct server *via, *ref;
+ int state = 0;
+
+ /* we have "via" which is the tracked server as described in the configuration,
+ * and "ref" which is the checked server and the end of the chain.
+ */
+ via = sv->track ? sv->track : sv;
+ ref = via;
+ while (ref->track)
+ ref = ref->track;
+
+ if (sv->cur_state == SRV_ST_RUNNING || sv->cur_state == SRV_ST_STARTING) {
+ state = 1;
+ if (sv->cur_admin & SRV_ADMF_DRAIN)
+ state = 0;
+ }
+
+ return state;
+}
+
+/* Convert a field to its string representation and write it in <out>, followed
+ * by a newline, if there is enough space. non-numeric value are converted in
+ * "Nan" because Prometheus only support numerical values (but it is unexepceted
+ * to process this kind of value). It returns 1 on success. Otherwise, it
+ * returns 0. The buffer's length must not exceed <max> value.
+ */
+static int promex_metric_to_str(struct buffer *out, struct field *f, size_t max)
+{
+ int ret = 0;
+
+ switch (field_format(f, 0)) {
+ case FF_EMPTY: ret = chunk_strcat(out, "Nan\n"); break;
+ case FF_S32: ret = chunk_appendf(out, "%d\n", f->u.s32); break;
+ case FF_U32: ret = chunk_appendf(out, "%u\n", f->u.u32); break;
+ case FF_S64: ret = chunk_appendf(out, "%lld\n", (long long)f->u.s64); break;
+ case FF_U64: ret = chunk_appendf(out, "%llu\n", (unsigned long long)f->u.u64); break;
+ case FF_STR: ret = chunk_strcat(out, "Nan\n"); break;
+ default: ret = chunk_strcat(out, "Nan\n"); break;
+ }
+ if (!ret || out->data > max)
+ return 0;
+ return 1;
+}
+
+/* Concatenate the <prefix> with the field name using the array
+ * <promex_st_metric_names> and store it in <name>. The field type is in
+ * <appctx->st2>. This function never fails but relies on
+ * <PROMEX_MAX_NAME_LEN>. So by sure the result is small enougth to be copied in
+ * <name>
+ */
+static void promex_metric_name(struct appctx *appctx, struct ist *name, const struct ist prefix)
+{
+ const struct ist *names;
+
+ names = ((appctx->ctx.stats.flags & PROMEX_FL_INFO_METRIC)
+ ? promex_inf_metric_names
+ : promex_st_metric_names);
+
+ istcat(name, prefix, PROMEX_MAX_NAME_LEN);
+ istcat(name, names[appctx->st2], PROMEX_MAX_NAME_LEN);
+}
+
+/* Dump the header lines for <metric>. It is its #HELP and #TYPE strings. It
+ * returns 1 on success. Otherwise, if <out> length exceeds <max>, it returns 0.
+ */
+static int promex_dump_metric_header(struct appctx *appctx, struct htx *htx,
+ const struct ist name, struct ist *out, size_t max)
+{
+ const struct ist *desc, *types;
+
+ if (appctx->ctx.stats.flags & PROMEX_FL_INFO_METRIC) {
+ desc = promex_inf_metric_desc;
+ types = promex_inf_metric_types;
+ }
+ else {
+ desc = promex_st_metric_desc;
+ types = promex_st_metric_types;
+ }
+
+ if (istcat(out, ist("#HELP "), max) == -1 ||
+ istcat(out, name, max) == -1 ||
+ istcat(out, ist(" "), max) == -1 ||
+ istcat(out, desc[appctx->st2], max) == -1 ||
+ istcat(out, ist("\n#TYPE "), max) == -1 ||
+ istcat(out, name, max) == -1 ||
+ istcat(out, ist(" "), max) == -1 ||
+ istcat(out, types[appctx->st2], max) == -1 ||
+ istcat(out, ist("\n"), max) == -1)
+ goto full;
+
+ return 1;
+
+ full:
+ return 0;
+}
+
+/* Dump the line for <metric>. It starts by the metric name followed by its
+ * labels (proxy name, server name...) between braces and finally its value. If
+ * not already done, the header lines are dumped first. It returns 1 on
+ * success. Otherwise if <out> length exceeds <max>, it returns 0.
+ */
+static int promex_dump_metric(struct appctx *appctx, struct htx *htx,
+ const struct ist prefix, struct field *metric,
+ struct ist *out, size_t max)
+{
+ struct ist name = { .ptr = (char[PROMEX_MAX_NAME_LEN]){ 0 }, .len = 0 };
+ size_t len = out->len;
+
+ if (out->len + PROMEX_MAX_METRIC_LENGTH > max)
+ return 0;
+
+ promex_metric_name(appctx, &name, prefix);
+ if ((appctx->ctx.stats.flags & PROMEX_FL_METRIC_HDR) &&
+ !promex_dump_metric_header(appctx, htx, name, out, max))
+ goto full;
+
+ if (appctx->ctx.stats.flags & PROMEX_FL_INFO_METRIC) {
+ const struct ist label = promex_inf_metric_labels[appctx->st2];
+
+ if (istcat(out, name, max) == -1 ||
+ (label.len && istcat(out, ist("{"), max) == -1) ||
+ (label.len && istcat(out, label, max) == -1) ||
+ (label.len && istcat(out, ist("}"), max) == -1) ||
+ istcat(out, ist(" "), max) == -1)
+ goto full;
+ }
+ else {
+ struct proxy *px = appctx->ctx.stats.px;
+ struct server *srv = appctx->ctx.stats.sv;
+ const struct ist label = promex_st_metric_labels[appctx->st2];
+
+ if (istcat(out, name, max) == -1 ||
+ istcat(out, ist("{proxy=\""), max) == -1 ||
+ istcat(out, ist2(px->id, strlen(px->id)), max) == -1 ||
+ istcat(out, ist("\""), max) == -1 ||
+ (srv && istcat(out, ist(",server=\""), max) == -1) ||
+ (srv && istcat(out, ist2(srv->id, strlen(srv->id)), max) == -1) ||
+ (srv && istcat(out, ist("\""), max) == -1) ||
+ (label.len && istcat(out, ist(","), max) == -1) ||
+ (label.len && istcat(out, label, max) == -1) ||
+ istcat(out, ist("} "), max) == -1)
+ goto full;
+ }
+
+ trash.data = out->len;
+ if (!promex_metric_to_str(&trash, metric, max))
+ goto full;
+ out->len = trash.data;
+
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ return 1;
+ full:
+ // Restore previous length
+ out->len = len;
+ return 0;
+
+}
+
+
+/* Dump global metrics (prefixed by "haproxy_process_"). It returns 1 on sucess,
+ * 0 if <htx> is full and -1 in case of any error. */
+static int promex_dump_global_metrics(struct appctx *appctx, struct htx *htx)
+{
+ static struct ist prefix = IST("haproxy_process_");
+ struct field metric;
+ struct channel *chn = si_ic(appctx->owner);
+ struct ist out = ist2(trash.area, 0);
+ size_t max = channel_htx_recv_max(chn, htx);
+ int ret = 1;
+
+#ifdef USE_OPENSSL
+ int ssl_sess_rate = read_freq_ctr(&global.ssl_per_sec);
+ int ssl_key_rate = read_freq_ctr(&global.ssl_fe_keys_per_sec);
+ int ssl_reuse = 0;
+
+ if (ssl_key_rate < ssl_sess_rate) {
+ /* count the ssl reuse ratio and avoid overflows in both directions */
+ ssl_reuse = 100 - (100 * ssl_key_rate + (ssl_sess_rate - 1) / 2) / ssl_sess_rate;
+ }
+#endif
+
+ while (appctx->st2 && appctx->st2 < INF_TOTAL_FIELDS) {
+ switch (appctx->st2) {
+ case INF_NBTHREAD:
+ metric = mkf_u32(FO_CONFIG|FS_SERVICE, global.nbthread);
+ break;
+ case INF_NBPROC:
+ metric = mkf_u32(FO_CONFIG|FS_SERVICE, global.nbproc);
+ break;
+ case INF_PROCESS_NUM:
+ metric = mkf_u32(FO_KEY, relative_pid);
+ break;
+ case INF_UPTIME_SEC:
+ metric = mkf_u32(FN_DURATION, (now.tv_sec - start_date.tv_sec));
+ break;
+ case INF_MEMMAX_MB:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.rlimit_memmax);
+ break;
+ case INF_POOL_ALLOC_MB:
+ metric = mkf_u32(0, (unsigned)(pool_total_allocated() / 1048576L));
+ break;
+ case INF_POOL_USED_MB:
+ metric = mkf_u32(0, (unsigned)(pool_total_used() / 1048576L));
+ break;
+ case INF_POOL_FAILED:
+ metric = mkf_u32(FN_COUNTER, pool_total_failures());
+ break;
+ case INF_ULIMIT_N:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.rlimit_nofile);
+ break;
+ case INF_MAXSOCK:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.maxsock);
+ break;
+ case INF_MAXCONN:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.maxconn);
+ break;
+ case INF_HARD_MAXCONN:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.hardmaxconn);
+ break;
+ case INF_CURR_CONN:
+ metric = mkf_u32(0, actconn);
+ break;
+ case INF_CUM_CONN:
+ metric = mkf_u32(FN_COUNTER, totalconn);
+ break;
+ case INF_CUM_REQ:
+ metric = mkf_u32(FN_COUNTER, global.req_count);
+ break;
+#ifdef USE_OPENSSL
+ case INF_MAX_SSL_CONNS:
+ metric = mkf_u32(FN_MAX, global.maxsslconn);
+ break;
+ case INF_CURR_SSL_CONNS:
+ metric = mkf_u32(0, sslconns);
+ break;
+ case INF_CUM_SSL_CONNS:
+ metric = mkf_u32(FN_COUNTER, totalsslconns);
+ break;
+#endif
+ case INF_MAXPIPES:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.maxpipes);
+ break;
+ case INF_PIPES_USED:
+ metric = mkf_u32(0, pipes_used);
+ break;
+ case INF_PIPES_FREE:
+ metric = mkf_u32(0, pipes_free);
+ break;
+ case INF_CONN_RATE:
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&global.conn_per_sec));
+ break;
+ case INF_CONN_RATE_LIMIT:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.cps_lim);
+ break;
+ case INF_MAX_CONN_RATE:
+ metric = mkf_u32(FN_MAX, global.cps_max);
+ break;
+ case INF_SESS_RATE:
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&global.sess_per_sec));
+ break;
+ case INF_SESS_RATE_LIMIT:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.sps_lim);
+ break;
+ case INF_MAX_SESS_RATE:
+ metric = mkf_u32(FN_RATE, global.sps_max);
+ break;
+#ifdef USE_OPENSSL
+ case INF_SSL_RATE:
+ metric = mkf_u32(FN_RATE, ssl_sess_rate);
+ break;
+ case INF_SSL_RATE_LIMIT:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.ssl_lim);
+ break;
+ case INF_MAX_SSL_RATE:
+ metric = mkf_u32(FN_MAX, global.ssl_max);
+ break;
+ case INF_SSL_FRONTEND_KEY_RATE:
+ metric = mkf_u32(0, ssl_key_rate);
+ break;
+ case INF_SSL_FRONTEND_MAX_KEY_RATE:
+ metric = mkf_u32(FN_MAX, global.ssl_fe_keys_max);
+ break;
+ case INF_SSL_FRONTEND_SESSION_REUSE_PCT:
+ metric = mkf_u32(0, ssl_reuse);
+ break;
+ case INF_SSL_BACKEND_KEY_RATE:
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&global.ssl_be_keys_per_sec));
+ break;
+ case INF_SSL_BACKEND_MAX_KEY_RATE:
+ metric = mkf_u32(FN_MAX, global.ssl_be_keys_max);
+ break;
+ case INF_SSL_CACHE_LOOKUPS:
+ metric = mkf_u32(FN_COUNTER, global.shctx_lookups);
+ break;
+ case INF_SSL_CACHE_MISSES:
+ metric = mkf_u32(FN_COUNTER, global.shctx_misses);
+ break;
+#endif
+ case INF_COMPRESS_BPS_IN:
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&global.comp_bps_in));
+ break;
+ case INF_COMPRESS_BPS_OUT:
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&global.comp_bps_out));
+ break;
+ case INF_COMPRESS_BPS_RATE_LIM:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.comp_rate_lim);
+ break;
+#ifdef USE_ZLIB
+ case INF_ZLIB_MEM_USAGE:
+ metric = mkf_u32(0, zlib_used_memory);
+ break;
+ case INF_MAX_ZLIB_MEM_USAGE:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, global.maxzlibmem);
+ break;
+#endif
+ case INF_TASKS:
+ metric = mkf_u32(0, nb_tasks_cur);
+ break;
+ case INF_RUN_QUEUE:
+ metric = mkf_u32(0, tasks_run_queue_cur);
+ break;
+ case INF_IDLE_PCT:
+ metric = mkf_u32(FN_AVG, idle_pct);
+ break;
+ case INF_STOPPING:
+ metric = mkf_u32(0, stopping);
+ break;
+ case INF_JOBS:
+ metric = mkf_u32(0, jobs);
+ break;
+ case INF_UNSTOPPABLE_JOBS:
+ metric = mkf_u32(0, unstoppable_jobs);
+ break;
+ case INF_LISTENERS:
+ metric = mkf_u32(0, listeners);
+ break;
+ case INF_ACTIVE_PEERS:
+ metric = mkf_u32(0, active_peers);
+ break;
+ case INF_CONNECTED_PEERS:
+ metric = mkf_u32(0, connected_peers);
+ break;
+ case INF_DROPPED_LOGS:
+ metric = mkf_u32(0, dropped_logs);
+ break;
+ case INF_BUSY_POLLING:
+ metric = mkf_u32(0, !!(global.tune.options & GTUNE_BUSY_POLLING));
+ break;
+
+ default:
+ goto next_metric;
+ }
+
+ if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
+ goto full;
+
+ next_metric:
+ appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
+ appctx->st2 = promex_global_metrics[appctx->st2];
+ }
+
+ end:
+ if (!htx_add_data(htx, out))
+ return -1; /* Unexpected and unrecoverable error */
+ channel_add_input(chn, out.len);
+ return ret;
+ full:
+ ret = 0;
+ goto end;
+}
+
+/* Dump frontends metrics (prefixed by "haproxy_frontend_"). It returns 1 on sucess,
+ * 0 if <htx> is full and -1 in case of any error. */
+static int promex_dump_front_metrics(struct appctx *appctx, struct htx *htx)
+{
+ static struct ist prefix = IST("haproxy_frontend_");
+ struct proxy *px;
+ struct field metric;
+ struct channel *chn = si_ic(appctx->owner);
+ struct ist out = ist2(trash.area, 0);
+ size_t max = channel_htx_recv_max(chn, htx);
+ int ret = 1;
+
+ while (appctx->st2 && appctx->st2 < ST_F_TOTAL_FIELDS) {
+ while (appctx->ctx.stats.px) {
+ px = appctx->ctx.stats.px;
+
+ /* skip the disabled proxies, global frontend and non-networked ones */
+ if (px->state == PR_STSTOPPED || px->uuid <= 0 || !(px->cap & PR_CAP_FE))
+ goto next_px;
+
+ switch (appctx->st2) {
+ case ST_F_STATUS:
+ metric = mkf_u32(FO_STATUS, px->state == PR_STREADY ? 1 : px->state == PR_STFULL ? 2 : 0);
+ break;
+ case ST_F_SCUR:
+ metric = mkf_u32(0, px->feconn);
+ break;
+ case ST_F_SMAX:
+ metric = mkf_u32(FN_MAX, px->fe_counters.conn_max);
+ break;
+ case ST_F_SLIM:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, px->maxconn);
+ break;
+ case ST_F_STOT:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.cum_sess);
+ break;
+ case ST_F_RATE:
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&px->fe_sess_per_sec));
+ break;
+ case ST_F_RATE_LIM:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, px->fe_sps_lim);
+ break;
+ case ST_F_RATE_MAX:
+ metric = mkf_u32(FN_MAX, px->fe_counters.sps_max);
+ break;
+ case ST_F_CONN_RATE:
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&px->fe_conn_per_sec));
+ break;
+ case ST_F_CONN_RATE_MAX:
+ metric = mkf_u32(FN_MAX, px->fe_counters.cps_max);
+ break;
+ case ST_F_CONN_TOT:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.cum_conn);
+ break;
+ case ST_F_BIN:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.bytes_in);
+ break;
+ case ST_F_BOUT:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.bytes_out);
+ break;
+ case ST_F_DREQ:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.denied_req);
+ break;
+ case ST_F_DRESP:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.denied_resp);
+ break;
+ case ST_F_EREQ:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.failed_req);
+ break;
+ case ST_F_DCON:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.denied_conn);
+ break;
+ case ST_F_DSES:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.denied_sess);
+ break;
+ case ST_F_WREW:
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.failed_rewrites);
+ break;
+ case ST_F_REQ_RATE:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&px->fe_req_per_sec));
+ break;
+ case ST_F_REQ_RATE_MAX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u32(FN_MAX, px->fe_counters.p.http.rps_max);
+ break;
+ case ST_F_REQ_TOT:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.cum_req);
+ break;
+ case ST_F_HRSP_1XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[1]);
+ break;
+ case ST_F_HRSP_2XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[2]);
+ break;
+ case ST_F_HRSP_3XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[3]);
+ break;
+ case ST_F_HRSP_4XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[4]);
+ break;
+ case ST_F_HRSP_5XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[5]);
+ break;
+ case ST_F_HRSP_OTHER:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.rsp[0]);
+ break;
+ case ST_F_INTERCEPTED:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.intercepted_req);
+ break;
+ case ST_F_CACHE_LOOKUPS:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.cache_lookups);
+ break;
+ case ST_F_CACHE_HITS:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.cache_hits);
+ break;
+ case ST_F_COMP_IN:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.comp_in);
+ break;
+ case ST_F_COMP_OUT:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.comp_out);
+ break;
+ case ST_F_COMP_BYP:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.comp_byp);
+ break;
+ case ST_F_COMP_RSP:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->fe_counters.p.http.comp_rsp);
+ break;
+
+ default:
+ goto next_metric;
+ }
+
+ if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
+ goto full;
+ next_px:
+ appctx->ctx.stats.px = px->next;
+ }
+ next_metric:
+ appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
+ appctx->ctx.stats.px = proxies_list;
+ appctx->st2 = promex_front_metrics[appctx->st2];
+ }
+
+ end:
+ if (!htx_add_data(htx, out))
+ return -1; /* Unexpected and unrecoverable error */
+ channel_add_input(chn, out.len);
+ return ret;
+ full:
+ ret = 0;
+ goto end;
+}
+
+/* Dump backends metrics (prefixed by "haproxy_backend_"). It returns 1 on sucess,
+ * 0 if <htx> is full and -1 in case of any error. */
+static int promex_dump_back_metrics(struct appctx *appctx, struct htx *htx)
+{
+ static struct ist prefix = IST("haproxy_backend_");
+ struct proxy *px;
+ struct field metric;
+ struct channel *chn = si_ic(appctx->owner);
+ struct ist out = ist2(trash.area, 0);
+ size_t max = channel_htx_recv_max(chn, htx);
+ int ret = 1;
+ uint32_t weight;
+
+ while (appctx->st2 && appctx->st2 < ST_F_TOTAL_FIELDS) {
+ while (appctx->ctx.stats.px) {
+ px = appctx->ctx.stats.px;
+
+ /* skip the disabled proxies, global frontend and non-networked ones */
+ if (px->state == PR_STSTOPPED || px->uuid <= 0 || !(px->cap & PR_CAP_BE))
+ goto next_px;
+
+ switch (appctx->st2) {
+ case ST_F_STATUS:
+ metric = mkf_u32(FO_STATUS, (px->lbprm.tot_weight > 0 || !px->srv) ? 1 : 0);
+ break;
+ case ST_F_SCUR:
+ metric = mkf_u32(0, px->beconn);
+ break;
+ case ST_F_SMAX:
+ metric = mkf_u32(FN_MAX, px->be_counters.conn_max);
+ break;
+ case ST_F_SLIM:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, px->fullconn);
+ break;
+ case ST_F_STOT:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.cum_conn);
+ break;
+ case ST_F_RATE:
+ metric = mkf_u32(0, read_freq_ctr(&px->be_sess_per_sec));
+ break;
+ case ST_F_RATE_MAX:
+ metric = mkf_u32(0, px->be_counters.sps_max);
+ break;
+ case ST_F_LASTSESS:
+ metric = mkf_s32(FN_AGE, be_lastsession(px));
+ break;
+ case ST_F_QCUR:
+ metric = mkf_u32(0, px->nbpend);
+ break;
+ case ST_F_QMAX:
+ metric = mkf_u32(FN_MAX, px->be_counters.nbpend_max);
+ break;
+ case ST_F_CONNECT:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.connect);
+ break;
+ case ST_F_REUSE:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.reuse);
+ break;
+ case ST_F_BIN:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.bytes_in);
+ break;
+ case ST_F_BOUT:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.bytes_out);
+ break;
+ case ST_F_QTIME:
+ metric = mkf_u32(FN_AVG, swrate_avg(px->be_counters.q_time, TIME_STATS_SAMPLES));
+ break;
+ case ST_F_CTIME:
+ metric = mkf_u32(FN_AVG, swrate_avg(px->be_counters.c_time, TIME_STATS_SAMPLES));
+ break;
+ case ST_F_RTIME:
+ metric = mkf_u32(FN_AVG, swrate_avg(px->be_counters.d_time, TIME_STATS_SAMPLES));
+ break;
+ case ST_F_TTIME:
+ metric = mkf_u32(FN_AVG, swrate_avg(px->be_counters.t_time, TIME_STATS_SAMPLES));
+ break;
+ case ST_F_DREQ:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.denied_req);
+ break;
+ case ST_F_DRESP:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.denied_resp);
+ break;
+ case ST_F_ECON:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.failed_conns);
+ break;
+ case ST_F_ERESP:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.failed_resp);
+ break;
+ case ST_F_WRETR:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.retries);
+ break;
+ case ST_F_WREDIS:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.redispatches);
+ break;
+ case ST_F_WREW:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.failed_rewrites);
+ break;
+ case ST_F_CLI_ABRT:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.cli_aborts);
+ break;
+ case ST_F_SRV_ABRT:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.srv_aborts);
+ break;
+ case ST_F_WEIGHT:
+ weight = (px->lbprm.tot_weight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv;
+ metric = mkf_u32(FN_AVG, weight);
+ break;
+ case ST_F_ACT:
+ metric = mkf_u32(0, px->srv_act);
+ break;
+ case ST_F_BCK:
+ metric = mkf_u32(0, px->srv_bck);
+ break;
+ case ST_F_CHKDOWN:
+ metric = mkf_u64(FN_COUNTER, px->down_trans);
+ break;
+ case ST_F_LASTCHG:
+ metric = mkf_u32(FN_AGE, now.tv_sec - px->last_change);
+ break;
+ case ST_F_DOWNTIME:
+ metric = mkf_u32(FN_COUNTER, be_downtime(px));
+ break;
+ case ST_F_LBTOT:
+ metric = mkf_u64(FN_COUNTER, px->be_counters.cum_lbconn);
+ break;
+ case ST_F_REQ_TOT:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.cum_req);
+ break;
+ case ST_F_HRSP_1XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[1]);
+ break;
+ case ST_F_HRSP_2XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[2]);
+ break;
+ case ST_F_HRSP_3XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[3]);
+ break;
+ case ST_F_HRSP_4XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[4]);
+ break;
+ case ST_F_HRSP_5XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[5]);
+ break;
+ case ST_F_HRSP_OTHER:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.rsp[0]);
+ break;
+ case ST_F_CACHE_LOOKUPS:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.cache_lookups);
+ break;
+ case ST_F_CACHE_HITS:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.cache_hits);
+ break;
+ case ST_F_COMP_IN:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.comp_in);
+ break;
+ case ST_F_COMP_OUT:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.comp_out);
+ break;
+ case ST_F_COMP_BYP:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.comp_byp);
+ break;
+ case ST_F_COMP_RSP:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, px->be_counters.p.http.comp_rsp);
+ break;
+
+ default:
+ goto next_metric;
+ }
+
+ if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
+ goto full;
+ next_px:
+ appctx->ctx.stats.px = px->next;
+ }
+ next_metric:
+ appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
+ appctx->ctx.stats.px = proxies_list;
+ appctx->st2 = promex_back_metrics[appctx->st2];
+ }
+
+ end:
+ if (!htx_add_data(htx, out))
+ return -1; /* Unexpected and unrecoverable error */
+ channel_add_input(chn, out.len);
+ return ret;
+ full:
+ ret = 0;
+ goto end;
+}
+
+/* Dump servers metrics (prefixed by "haproxy_server_"). It returns 1 on sucess,
+ * 0 if <htx> is full and -1 in case of any error. */
+static int promex_dump_srv_metrics(struct appctx *appctx, struct htx *htx)
+{
+ static struct ist prefix = IST("haproxy_server_");
+ struct proxy *px;
+ struct server *sv;
+ struct field metric;
+ struct channel *chn = si_ic(appctx->owner);
+ struct ist out = ist2(trash.area, 0);
+ size_t max = channel_htx_recv_max(chn, htx);
+ int ret = 1;
+ uint32_t weight;
+
+ while (appctx->st2 && appctx->st2 < ST_F_TOTAL_FIELDS) {
+ while (appctx->ctx.stats.px) {
+ px = appctx->ctx.stats.px;
+
+ /* skip the disabled proxies, global frontend and non-networked ones */
+ if (px->state == PR_STSTOPPED || px->uuid <= 0 || !(px->cap & PR_CAP_BE))
+ goto next_px;
+
+ while (appctx->ctx.stats.sv) {
+ sv = appctx->ctx.stats.sv;
+
+ switch (appctx->st2) {
+ case ST_F_STATUS:
+ metric = mkf_u32(FO_STATUS, promex_srv_status(sv));
+ break;
+ case ST_F_SCUR:
+ metric = mkf_u32(0, sv->cur_sess);
+ break;
+ case ST_F_SMAX:
+ metric = mkf_u32(FN_MAX, sv->counters.cur_sess_max);
+ break;
+ case ST_F_SLIM:
+ metric = mkf_u32(FO_CONFIG|FN_LIMIT, sv->maxconn);
+ break;
+ case ST_F_STOT:
+ metric = mkf_u64(FN_COUNTER, sv->counters.cum_sess);
+ break;
+ case ST_F_RATE:
+ metric = mkf_u32(FN_RATE, read_freq_ctr(&sv->sess_per_sec));
+ break;
+ case ST_F_RATE_MAX:
+ metric = mkf_u32(FN_MAX, sv->counters.sps_max);
+ break;
+ case ST_F_LASTSESS:
+ metric = mkf_s32(FN_AGE, srv_lastsession(sv));
+ break;
+ case ST_F_QCUR:
+ metric = mkf_u32(0, sv->nbpend);
+ break;
+ case ST_F_QMAX:
+ metric = mkf_u32(FN_MAX, sv->counters.nbpend_max);
+ break;
+ case ST_F_QLIMIT:
+ metric = mkf_u32(FO_CONFIG|FS_SERVICE, sv->maxqueue);
+ break;
+ case ST_F_BIN:
+ metric = mkf_u64(FN_COUNTER, sv->counters.bytes_in);
+ break;
+ case ST_F_BOUT:
+ metric = mkf_u64(FN_COUNTER, sv->counters.bytes_out);
+ break;
+ case ST_F_QTIME:
+ metric = mkf_u32(FN_AVG, swrate_avg(sv->counters.q_time, TIME_STATS_SAMPLES));
+ break;
+ case ST_F_CTIME:
+ metric = mkf_u32(FN_AVG, swrate_avg(sv->counters.c_time, TIME_STATS_SAMPLES));
+ break;
+ case ST_F_RTIME:
+ metric = mkf_u32(FN_AVG, swrate_avg(sv->counters.d_time, TIME_STATS_SAMPLES));
+ break;
+ case ST_F_TTIME:
+ metric = mkf_u32(FN_AVG, swrate_avg(sv->counters.t_time, TIME_STATS_SAMPLES));
+ break;
+ case ST_F_CONNECT:
+ metric = mkf_u64(FN_COUNTER, sv->counters.connect);
+ break;
+ case ST_F_REUSE:
+ metric = mkf_u64(FN_COUNTER, sv->counters.reuse);
+ break;
+ case ST_F_DRESP:
+ metric = mkf_u64(FN_COUNTER, sv->counters.failed_secu);
+ break;
+ case ST_F_ECON:
+ metric = mkf_u64(FN_COUNTER, sv->counters.failed_conns);
+ break;
+ case ST_F_ERESP:
+ metric = mkf_u64(FN_COUNTER, sv->counters.failed_resp);
+ break;
+ case ST_F_WRETR:
+ metric = mkf_u64(FN_COUNTER, sv->counters.retries);
+ break;
+ case ST_F_WREDIS:
+ metric = mkf_u64(FN_COUNTER, sv->counters.redispatches);
+ break;
+ case ST_F_WREW:
+ metric = mkf_u64(FN_COUNTER, sv->counters.failed_rewrites);
+ break;
+ case ST_F_CLI_ABRT:
+ metric = mkf_u64(FN_COUNTER, sv->counters.cli_aborts);
+ break;
+ case ST_F_SRV_ABRT:
+ metric = mkf_u64(FN_COUNTER, sv->counters.srv_aborts);
+ break;
+ case ST_F_WEIGHT:
+ weight = (sv->cur_eweight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv;
+ metric = mkf_u32(FN_AVG, weight);
+ break;
+ case ST_F_CHKFAIL:
+ metric = mkf_u64(FN_COUNTER, sv->counters.failed_checks);
+ break;
+ case ST_F_CHKDOWN:
+ metric = mkf_u64(FN_COUNTER, sv->counters.down_trans);
+ break;
+ case ST_F_DOWNTIME:
+ metric = mkf_u32(FN_COUNTER, srv_downtime(sv));
+ break;
+ case ST_F_LASTCHG:
+ metric = mkf_u32(FN_AGE, now.tv_sec - sv->last_change);
+ break;
+ case ST_F_THROTTLE:
+ metric = mkf_u32(FN_AVG, server_throttle_rate(sv));
+ break;
+ case ST_F_LBTOT:
+ metric = mkf_u64(FN_COUNTER, sv->counters.cum_lbconn);
+ break;
+ case ST_F_HRSP_1XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[1]);
+ break;
+ case ST_F_HRSP_2XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[2]);
+ break;
+ case ST_F_HRSP_3XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[3]);
+ break;
+ case ST_F_HRSP_4XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[4]);
+ break;
+ case ST_F_HRSP_5XX:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[5]);
+ break;
+ case ST_F_HRSP_OTHER:
+ if (px->mode != PR_MODE_HTTP)
+ goto next_px;
+ appctx->ctx.stats.flags &= ~PROMEX_FL_METRIC_HDR;
+ metric = mkf_u64(FN_COUNTER, sv->counters.p.http.rsp[0]);
+ break;
+
+ default:
+ goto next_metric;
+ }
+
+ if (!promex_dump_metric(appctx, htx, prefix, &metric, &out, max))
+ goto full;
+
+ appctx->ctx.stats.sv = sv->next;
+ }
+
+ next_px:
+ appctx->ctx.stats.px = px->next;
+ appctx->ctx.stats.sv = (appctx->ctx.stats.px ? appctx->ctx.stats.px->srv : NULL);
+ }
+ next_metric:
+ appctx->ctx.stats.flags |= PROMEX_FL_METRIC_HDR;
+ appctx->ctx.stats.px = proxies_list;
+ appctx->ctx.stats.sv = (appctx->ctx.stats.px ? appctx->ctx.stats.px->srv : NULL);
+ appctx->st2 = promex_srv_metrics[appctx->st2];
+ }
+
+
+ end:
+ if (!htx_add_data(htx, out))
+ return -1; /* Unexpected and unrecoverable error */
+ channel_add_input(chn, out.len);
+ return ret;
+ full:
+ ret = 0;
+ goto end;
+}
+
+/* Dump all metrics (global, frontends, backends and servers) depending on the
+ * dumper state (appctx->st1). It returns 1 on success, 0 if <htx> is full and
+ * -1 in case of any error. */
+static int promex_dump_metrics(struct appctx *appctx, struct stream_interface *si, struct htx *htx)
+{
+ int ret;
+
+ switch (appctx->st1) {
+ case PROMEX_DUMPER_INIT:
+ appctx->ctx.stats.px = NULL;
+ appctx->ctx.stats.sv = NULL;
+ appctx->ctx.stats.flags = (PROMEX_FL_METRIC_HDR|PROMEX_FL_INFO_METRIC);
+ appctx->st2 = promex_global_metrics[INF_NAME];
+ appctx->st1 = PROMEX_DUMPER_GLOBAL;
+ /* fall through */
+
+ case PROMEX_DUMPER_GLOBAL:
+ ret = promex_dump_global_metrics(appctx, htx);
+ if (ret <= 0) {
+ if (ret == -1)
+ goto error;
+ goto full;
+ }
+
+ appctx->ctx.stats.px = proxies_list;
+ appctx->ctx.stats.sv = NULL;
+ appctx->ctx.stats.flags = (PROMEX_FL_METRIC_HDR|PROMEX_FL_STATS_METRIC);
+ appctx->st2 = promex_front_metrics[ST_F_PXNAME];
+ appctx->st1 = PROMEX_DUMPER_FRONT;
+ /* fall through */
+
+ case PROMEX_DUMPER_FRONT:
+ ret = promex_dump_front_metrics(appctx, htx);
+ if (ret <= 0) {
+ if (ret == -1)
+ goto error;
+ goto full;
+ }
+
+ appctx->ctx.stats.px = proxies_list;
+ appctx->ctx.stats.sv = NULL;
+ appctx->ctx.stats.flags = (PROMEX_FL_METRIC_HDR|PROMEX_FL_STATS_METRIC);
+ appctx->st2 = promex_back_metrics[ST_F_PXNAME];
+ appctx->st1 = PROMEX_DUMPER_BACK;
+ /* fall through */
+
+ case PROMEX_DUMPER_BACK:
+ ret = promex_dump_back_metrics(appctx, htx);
+ if (ret <= 0) {
+ if (ret == -1)
+ goto error;
+ goto full;
+ }
+
+ appctx->ctx.stats.px = proxies_list;
+ appctx->ctx.stats.sv = (appctx->ctx.stats.px ? appctx->ctx.stats.px->srv : NULL);
+ appctx->ctx.stats.flags = (PROMEX_FL_METRIC_HDR|PROMEX_FL_STATS_METRIC);
+ appctx->st2 = promex_srv_metrics[ST_F_PXNAME];
+ appctx->st1 = PROMEX_DUMPER_SRV;
+ /* fall through */
+
+ case PROMEX_DUMPER_SRV:
+ ret = promex_dump_srv_metrics(appctx, htx);
+ if (ret <= 0) {
+ if (ret == -1)
+ goto error;
+ goto full;
+ }
+
+ appctx->ctx.stats.px = NULL;
+ appctx->ctx.stats.sv = NULL;
+ appctx->ctx.stats.flags = 0;
+ appctx->st2 = 0;
+ appctx->st1 = PROMEX_DUMPER_DONE;
+ /* fall through */
+
+ case PROMEX_DUMPER_DONE:
+ default:
+ break;
+ }
+
+ return 1;
+
+ full:
+ si_rx_room_blk(si);
+ return 0;
+ error:
+ /* unrecoverable error */
+ appctx->ctx.stats.px = NULL;
+ appctx->ctx.stats.sv = NULL;
+ appctx->ctx.stats.flags = 0;
+ appctx->st2 = 0;
+ appctx->st1 = PROMEX_DUMPER_DONE;
+ return -1;
+}
+
+/* Send HTTP headers of the response. It returns 1 on success and 0 if <htx> is
+ * full. */
+static int promex_send_headers(struct appctx *appctx, struct stream_interface *si, struct htx *htx)
+{
+ struct htx_sl *sl;
+ unsigned int flags;
+
+ flags = (HTX_SL_F_IS_RESP|HTX_SL_F_VER_11|HTX_SL_F_XFER_ENC|HTX_SL_F_XFER_LEN|HTX_SL_F_CHNK);
+ sl = htx_add_stline(htx, HTX_BLK_RES_SL, flags, ist("HTTP/1.1"), ist("200"), ist("OK"));
+ if (!sl)
+ goto full;
+ sl->info.res.status = 200;
+ if (!htx_add_header(htx, ist("Cache-Control"), ist("no-cache")) ||
+ !htx_add_header(htx, ist("Connection"), ist("close")) ||
+ !htx_add_header(htx, ist("Content-Type"), ist("text/plain; version=0.0.4")) ||
+ !htx_add_header(htx, ist("Transfer-Encoding"), ist("chunked")) ||
+ !htx_add_endof(htx, HTX_BLK_EOH))
+ goto full;
+
+ return 1;
+ full:
+ htx_reset(htx);
+ si_rx_room_blk(si);
+ return 0;
+}
+
+/* The function returns 1 if the initialisation is complete, 0 if
+ * an errors occurs and -1 if more data are required for initializing
+ * the applet.
+ */
+static int promex_appctx_init(struct appctx *appctx, struct proxy *px, struct stream *strm)
+{
+ appctx->st0 = PROMEX_ST_INIT;
+ return 1;
+}
+
+/* The main I/O handler for the promex applet. */
+static void promex_appctx_handle_io(struct appctx *appctx)
+{
+ struct stream_interface *si = appctx->owner;
+ struct stream *s = si_strm(si);
+ struct channel *req = si_oc(si);
+ struct channel *res = si_ic(si);
+ struct htx *req_htx, *res_htx;
+ int ret;
+
+ res_htx = htx_from_buf(&res->buf);
+
+ if (unlikely(si->state == SI_ST_DIS || si->state == SI_ST_CLO))
+ goto out;
+
+ /* Check if the input buffer is avalaible. */
+ if (!b_size(&res->buf)) {
+ si_rx_room_blk(si);
+ goto out;
+ }
+
+ switch (appctx->st0) {
+ case PROMEX_ST_INIT:
+ appctx->st0 = PROMEX_ST_HEAD;
+ appctx->st1 = PROMEX_DUMPER_INIT;
+ /* fall through */
+
+ case PROMEX_ST_HEAD:
+ if (!promex_send_headers(appctx, si, res_htx))
+ goto out;
+ appctx->st0 = ((s->txn->meth == HTTP_METH_HEAD) ? PROMEX_ST_DONE : PROMEX_ST_DUMP);
+ /* fall through */
+
+ case PROMEX_ST_DUMP:
+ ret = promex_dump_metrics(appctx, si, res_htx);
+ if (ret <= 0) {
+ if (ret == -1)
+ goto error;
+ goto out;
+ }
+ appctx->st0 = PROMEX_ST_DONE;
+ /* fall through */
+
+ case PROMEX_ST_DONE:
+ /* Don't add EOD and TLR because mux-h1 will take care of it */
+ if (!htx_add_endof(res_htx, HTX_BLK_EOM)) {
+ si_rx_room_blk(si);
+ goto out;
+ }
+ res->flags |= CF_READ_NULL;
+
+ /* eat the whole request */
+ req_htx = htxbuf(&req->buf);
+ htx_reset(req_htx);
+ htx_to_buf(req_htx, &req->buf);
+ co_set_data(req, 0);
+
+ /* Set SI flags */
+ if (!(s->flags & SF_ERR_MASK)) // this is not really an error but it is
+ s->flags |= SF_ERR_LOCAL; // to mark that it comes from the proxy
+ if (!(s->flags & SF_FINST_MASK))
+ s->flags |= SF_FINST_R;
+
+ si_shutr(si);
+
+ case PROMEX_ST_ERROR:
+ return;
+ }
+
+ if ((res->flags & CF_SHUTR) && (si->state == SI_ST_EST))
+ si_shutw(si);
+
+ out:
+ htx_to_buf(res_htx, &res->buf);
+ if (!channel_is_empty(res))
+ si_stop_get(si);
+ return;
+
+ error:
+ res->flags |= CF_READ_NULL;
+ si_shutr(si);
+ si_shutw(si);
+}
+
+struct applet promex_applet = {
+ .obj_type = OBJ_TYPE_APPLET,
+ .name = "<PROMEX>", /* used for logging */
+ .init = promex_appctx_init,
+ .fct = promex_appctx_handle_io,
+};
+
+static enum act_parse_ret service_parse_prometheus_exporter(const char **args, int *cur_arg, struct proxy *px,
+ struct act_rule *rule, char **err)
+{
+ /* Prometheus exporter service is only available on "http-request" rulesets */
+ if (rule->from != ACT_F_HTTP_REQ) {
+ memprintf(err, "Prometheus exporter service only available on 'http-request' rulesets");
+ return ACT_RET_PRS_ERR;
+ }
+ if (!(px->options2 & PR_O2_USE_HTX)) {
+ memprintf(err, "Prometheus exporter service only available for HTX proxies");
+ return ACT_RET_PRS_ERR;
+ }
+
+ /* Add applet pointer in the rule. */
+ rule->applet = promex_applet;
+
+ return ACT_RET_PRS_OK;
+}
+static void promex_register_build_options(void)
+{
+ char *ptr = NULL;
+
+ memprintf(&ptr, "Built with the Prometheus exporter as a service");
+ hap_register_build_opts(ptr, 1);
+}
+
+
+static struct action_kw_list service_actions = { ILH, {
+ { "prometheus-exporter", service_parse_prometheus_exporter },
+ { /* END */ }
+}};
+
+INITCALL1(STG_REGISTER, service_keywords_register, &service_actions);
+INITCALL0(STG_REGISTER, promex_register_build_options);