feat(install): make haproxy usersystem user, ensure haproxy stays up if upgraded in bulk

defaults/main.yml

@@ -1,7 +1,7 @@
 ---
 # defaults file for deploy_haproxy
 deploy_haproxy_deploy_method: host # deployment method, either host or docker
-deploy_haproxy_version: latest
+deploy_haproxy_version: "2.6"
 
 # Options from the "default" config block in haproxy.cfg
 # The default values here are usually set, but you can change any of them.

tasks/install_host.yml

@@ -7,3 +7,29 @@
     manage_repositories_enable_default_repo: false
     manage_repositories_enable_custom_repo: true
     manage_repositories_custom_repo: "{{ deploy_haproxy_repository[ansible_distribution|lower] }}"
+
+- name: "Get service haproxy"
+  ansible.builtin.service_facts:
+
+- name: "Install from repostories"
+  throttle: 1
+  block:
+    - name: "Install haproxy version: {{ deploy_haproxy_version }}"
+      ansible.builtin.apt:
+        update_cache: yes
+        name: "haproxy{{ '='~deploy_haproxy_version~'*' if deploy_haproxy_version != 'latest' }}"
+        state: "{{ 'present' if deploy_haproxy_version != 'latest' else deploy_haproxy_version}}"
+        allow_downgrade: true
+        cache_valid_time: 3600
+
+    - name: "Ensure haproxy is running"
+      ansible.builtin.service:
+        name: "{{ deploy_haproxy_service_name }}"
+        state: started
+      register: _haproxy_service_health
+      until: _haproxy_service_health.status.ActiveState == "active"
+      retries: 15
+      delay: 2
+      when:
+        ansible_facts.services[deploy_haproxy_service_name~'.service'] is defined
+        and ansible_facts.services[deploy_haproxy_service_name~'.service']['state'] == 'running'

tasks/prerequisites.yml

@@ -15,6 +15,7 @@
         home: "{{ deploy_haproxy_chroot }}"
         create_home: false
         shell: /bin/false
+        system: true
         state: present
 
     - name: "Create directory {{ deploy_haproxy_config_dir }}"

vars/main.yml

@@ -5,6 +5,8 @@ deploy_haproxy_socket: /var/lib/haproxy/stats
 deploy_haproxy_chroot: /var/lib/haproxy
 deploy_haproxy_user: haproxy
 deploy_haproxy_group: haproxy
+deploy_haproxy_service_name: "haproxy{{ '_container' if deploy_haproxy_deploy_method == 'docker' }}"
+deploy_haproxy_docker_image: haproxy
 deploy_haproxy_version_map:
   latest: "2.9"