fix: perconas haproxy default cfg (#1211)

Since we are now using version 1.14.0 of the operator and default haproxy tag from it is also 1.14.0 we need to update haproxy config to new version. Without kubernetes resolver startup of haproxy pods takes much longer. And yes, it has nothing to do with crVersion: "1.13.0" from spec itself:)

Reviewed-by: Oleksandr K.

roles/percona_xtradb_cluster/vars/main.yml

@@ -44,14 +44,21 @@ _percona_xtradb_cluster_spec:
     image: "{{ atmosphere_images['percona_xtradb_cluster_haproxy'] | vexxhost.kubernetes.docker_image('ref') }}"
     nodeSelector:
       openstack-control-plane: enabled
+    # NOTE(fitbeard): The actual default configuration file can be found here:
+    # https://github.com/percona/percona-docker/blob/pxc-operator-1.14.0/haproxy/dockerdir/etc/haproxy/haproxy-global.cfg
+    # Should be aligned with upstream example when bumping chart version
     configuration: |
       global
+        log stdout format raw local0
         maxconn 8192
         external-check
         insecure-fork-wanted
+        hard-stop-after 10s
         stats socket /etc/haproxy/pxc/haproxy.sock mode 600 expose-fd listeners level admin
 
       defaults
+        no option dontlognull
+        log-format '{"time":"%t", "client_ip": "%ci", "client_port":"%cp", "backend_source_ip": "%bi", "backend_source_port": "%bp",  "frontend_name": "%ft", "backend_name": "%b", "server_name":"%s", "tw": "%Tw", "tc": "%Tc", "Tt": "%Tt", "bytes_read": "%B", "termination_state": "%ts", "actconn": "%ac", "feconn" :"%fc", "beconn": "%bc", "srv_conn": "%sc", "retries": "%rc", "srv_queue": "%sq", "backend_queue": "%bq" }'
         default-server init-addr last,libc,none
         log global
         mode tcp
@@ -60,6 +67,9 @@ _percona_xtradb_cluster_spec:
         timeout connect 100500
         timeout server 28800s
 
+      resolvers kubernetes
+        parse-resolv-conf
+
       frontend galera-in
         bind *:3309 accept-proxy
         bind *:3306