MEDIUM: cli/ssl: configure ssl on server at runtime

in the context of a progressive backend migration, we want to be able to
activate SSL on outgoing connections to the server at runtime without
reloading.
This patch adds a `set server ssl` command; in order to allow that:

- add `srv_use_ssl` to `show servers state` command for compatibility,
  also update associated parsing
- when using default-server ssl setting, and `no-ssl` on server line,
  init SSL ctx without activating it
- when triggering ssl API, de/activate SSL connections as requested
- clean ongoing connections as it is done for addr/port changes, without
  checking prior server state

example config:

backend be_foo
  default-server ssl
  server srv0 127.0.0.1:6011 weight 1 no-ssl

show servers state:

  5 be_foo 1 srv0 127.0.0.1 2 0 1 1 15 1 0 4 0 0 0 0 - 6011 - -1

where srv0 can switch to ssl later during the runtime:

  set server be_foo/srv0 ssl on

  5 be_foo 1 srv0 127.0.0.1 2 0 1 1 15 1 0 4 0 0 0 0 - 6011 - 1

Also update existing tests and create a new one.

Signed-off-by: William Dauchy <wdauchy@gmail.com>
diff --git a/reg-tests/checks/40be_2srv_odd_health_checks.vtc b/reg-tests/checks/40be_2srv_odd_health_checks.vtc
index 9cc6279..fb22959 100644
--- a/reg-tests/checks/40be_2srv_odd_health_checks.vtc
+++ b/reg-tests/checks/40be_2srv_odd_health_checks.vtc
@@ -633,6 +633,6 @@
 
 haproxy h1 -cli {
     send "show servers state"
-    expect ~ "# be_id be_name srv_id srv_name srv_addr srv_op_state srv_admin_state srv_uweight srv_iweight srv_time_since_last_change srv_check_status srv_check_result srv_check_health srv_check_state srv_agent_state bk_f_forced_id srv_f_forced_id srv_fqdn srv_port srvrecord\n2 be1 1 srv1 ${s1_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s1_port} -\n2 be1 2 srv0 ${s0_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s0_port} -\n3 be3 1 srv3 ${s3_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s3_port} -\n3 be3 2 srv2 ${s2_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s2_port} -\n4 be5 1 srv5 ${s5_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s5_port} -\n4 be5 2 srv4 ${s4_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s4_port} -\n5 be7 1 srv7 ${s7_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s7_port} -\n5 be7 2 srv6 ${s6_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s6_port} -\n6 be9 1 srv9 ${s9_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s9_port} -\n6 be9 2 srv8 ${s8_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s8_port} -\n7 be11 1 srv11 ${s11_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s11_port} -\n7 be11 2 srv10 ${s10_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s10_port} -\n8 be13 1 srv13 ${s13_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s13_port} -\n8 be13 2 srv12 ${s12_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s12_port} -\n9 be15 1 srv15 ${s15_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s15_port} -\n9 be15 2 srv14 ${s14_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s14_port} -\n10 be17 1 srv17 ${s17_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s17_port} -\n10 be17 2 srv16 ${s16_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s16_port} -\n11 be19 1 srv19 ${s19_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s19_port} -\n11 be19 2 srv18 ${s18_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s18_port} -\n12 be21 1 srv21 ${s21_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s21_port} -\n12 be21 2 srv20 ${s20_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s20_port} -\n13 be23 1 srv23 ${s23_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s23_port} -\n13 be23 2 srv22 ${s22_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s22_port} -\n14 be25 1 srv25 ${s25_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s25_port} -\n14 be25 2 srv24 ${s24_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s24_port} -\n15 be27 1 srv27 ${s27_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s27_port} -\n15 be27 2 srv26 ${s26_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s26_port} -\n16 be29 1 srv29 ${s29_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s29_port} -\n16 be29 2 srv28 ${s28_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s28_port} -\n17 be31 1 srv31 ${s31_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s31_port} -\n17 be31 2 srv30 ${s30_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s30_port} -\n18 be33 1 srv33 ${s33_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s33_port} -\n18 be33 2 srv32 ${s32_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s32_port} -\n19 be35 1 srv35 ${s35_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s35_port} -\n19 be35 2 srv34 ${s34_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s34_port} -\n20 be37 1 srv37 ${s37_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s37_port} -\n20 be37 2 srv36 ${s36_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s36_port} -\n21 be39 1 srv39 ${s39_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s39_port} -\n21 be39 2 srv38 ${s38_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s38_port} -\n"
+    expect ~ "# be_id be_name srv_id srv_name srv_addr srv_op_state srv_admin_state srv_uweight srv_iweight srv_time_since_last_change srv_check_status srv_check_result srv_check_health srv_check_state srv_agent_state bk_f_forced_id srv_f_forced_id srv_fqdn srv_port srvrecord srv_use_ssl\n2 be1 1 srv1 ${s1_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s1_port} - 0\n2 be1 2 srv0 ${s0_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s0_port} - 0\n3 be3 1 srv3 ${s3_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s3_port} - 0\n3 be3 2 srv2 ${s2_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s2_port} - 0\n4 be5 1 srv5 ${s5_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s5_port} - 0\n4 be5 2 srv4 ${s4_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s4_port} - 0\n5 be7 1 srv7 ${s7_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s7_port} - 0\n5 be7 2 srv6 ${s6_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s6_port} - 0\n6 be9 1 srv9 ${s9_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s9_port} - 0\n6 be9 2 srv8 ${s8_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s8_port} - 0\n7 be11 1 srv11 ${s11_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s11_port} - 0\n7 be11 2 srv10 ${s10_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s10_port} - 0\n8 be13 1 srv13 ${s13_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s13_port} - 0\n8 be13 2 srv12 ${s12_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s12_port} - 0\n9 be15 1 srv15 ${s15_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s15_port} - 0\n9 be15 2 srv14 ${s14_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s14_port} - 0\n10 be17 1 srv17 ${s17_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s17_port} - 0\n10 be17 2 srv16 ${s16_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s16_port} - 0\n11 be19 1 srv19 ${s19_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s19_port} - 0\n11 be19 2 srv18 ${s18_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s18_port} - 0\n12 be21 1 srv21 ${s21_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s21_port} - 0\n12 be21 2 srv20 ${s20_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s20_port} - 0\n13 be23 1 srv23 ${s23_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s23_port} - 0\n13 be23 2 srv22 ${s22_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s22_port} - 0\n14 be25 1 srv25 ${s25_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s25_port} - 0\n14 be25 2 srv24 ${s24_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s24_port} - 0\n15 be27 1 srv27 ${s27_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s27_port} - 0\n15 be27 2 srv26 ${s26_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s26_port} - 0\n16 be29 1 srv29 ${s29_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s29_port} - 0\n16 be29 2 srv28 ${s28_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s28_port} - 0\n17 be31 1 srv31 ${s31_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s31_port} - 0\n17 be31 2 srv30 ${s30_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s30_port} - 0\n18 be33 1 srv33 ${s33_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s33_port} - 0\n18 be33 2 srv32 ${s32_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s32_port} - 0\n19 be35 1 srv35 ${s35_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s35_port} - 0\n19 be35 2 srv34 ${s34_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s34_port} - 0\n20 be37 1 srv37 ${s37_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s37_port} - 0\n20 be37 2 srv36 ${s36_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s36_port} - 0\n21 be39 1 srv39 ${s39_addr} 2 0 1 1 [[:digit:]]+ 6 ([[:digit:]]+ ){3}0 0 0 - ${s39_port} - 0\n21 be39 2 srv38 ${s38_addr} 2 0 1 1 [[:digit:]]+ 1 0 1 0 0 0 0 - ${s38_port} - 0\n"
 }