Configured haproxies

roles/keepalived/defaults/main.yml

@@ -0,0 +1,3 @@
+---
+vip_interface: ens18
+vip_address: 10.0.0.200

roles/keepalived/tasks/main.yml

@@ -0,0 +1,27 @@
+---
+- name: Install keepalived
+  command: >
+    bash -c "apt-get update
+      apt-get install -y keepalived"
+  become: true
+
+- name: Copy keepalived haproxy script
+  template:
+    src: ../templates/keepalived_haproxy.j2
+    dest: /usr/local/bin/keepalived_haproxy
+    mode: a+x
+  become: true
+
+- name: Write Keepalived Config
+  template:
+    src: ../templates/keepalived.conf.j2
+    dest: /etc/keepalived/keepalived.conf
+    mode: a+x
+  become: true
+
+- name: Ensure Keepalived enabled and running
+  service:
+    name: keepalived
+    state: restarted
+    enabled: true
+  become: true

roles/keepalived/templates/keepalived.conf.j2

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+global_defs {
+    router_id HOME-PROXY.WIMER.HOME
+}
+
+vrrp_script check_vip {
+script "curl http://localhost:2016/haproxy"
+  interval 2
+  weight -100
+}
+
+vrrp_instance HAPROXY_API_FRONT {
+{% if play_hosts|first == inventory_hostname %}
+    state MASTER
+    priority 150
+{% else %}
+    state BACKUP
+    priority 100
+{% endif %}
+    interface {{ vip_interface }}
+    virtual_router_id {{ vip_address.split('.')[3] }}
+    advert_int 1
+
+    authentication {
+        auth_type PASS
+        auth_pass home
+    }
+
+    dont_track_primary
+
+    track_script {
+      check_vip
+    }
+
+    virtual_ipaddress {
+    {{ vip_address }} dev {{ vip_interface }}
+    }
+
+    notify /usr/local/bin/keepalived_haproxy
+    smtp_alert
+}

roles/keepalived/templates/keepalived_haproxy.j2

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+#!/bin/bash
+
+TYPE=${1}
+NAME=${2}
+STATE=${3}
+
+case ${STATE} in
+        "MASTER") service haproxy start
+                  exit 0
+                  ;;
+        "BACKUP") service haproxy start
+                  exit 0
+                  ;;
+        "FAULT")  service haproxy stop
+                  exit 0
+                  ;;
+        *)        echo "unknown state"
+                  exit 1
+                  ;;
+esac