Reconfigure for haproxy

Add reconfiguration for haproxy

Co-Authored-By: Jeffrey Zhang <jeffrey.zhang@99cloud.net>
Closes-Bug: #1553528
Change-Id: Ibe9266dfac8e79c5aa56a17eb908ff12cd81cc05

ansible/roles/haproxy/tasks/do_reconfigure.yml

+---
+- name: Ensuring the containers up
+  kolla_docker:
+    name: "{{ item.name }}"
+    action: "get_container_state"
+  register: container_state
+  failed_when: container_state.Running == false
+  when: inventory_hostname in groups[item.group]
+  with_items:
+    - { name: haproxy, group: haproxy }
+    - { name: keepalived, group: haproxy }
+
+- include: config.yml
+
+- name: Check the configs
+  command: docker exec {{ item.name }} /usr/local/bin/kolla_set_configs --check
+  changed_when: false
+  failed_when: false
+  register: check_results
+  when: inventory_hostname in groups[item.group]
+  with_items:
+    - { name: haproxy, group: haproxy }
+    - { name: keepalived, group: haproxy }
+
+- name: Containers config strategy
+  kolla_docker:
+    name: "{{ item.name }}"
+    action: "get_container_env"
+  register: container_envs
+  when: inventory_hostname in groups[item.group]
+  with_items:
+    - { name: haproxy, group: haproxy }
+    - { name: keepalived, group: haproxy }
+
+- name: Remove the containers
+  kolla_docker:
+    name: "{{ item[0]['name'] }}"
+    action: "remove_container"
+  register: remove_containers
+  when:
+    - config_strategy == "COPY_ONCE" or item[1]['KOLLA_CONFIG_STRATEGY'] == 'COPY_ONCE'
+    - item[2]['rc'] == 1
+    - inventory_hostname in groups[item[0]['group']]
+  with_together:
+    - [{ name: haproxy, group: haproxy },
+       { name: keepalived, group: haproxy }]
+    - container_envs.results
+    - check_results.results
+
+- include: start.yml
+  when: remove_containers.changed
+
+# container_envs.results is a list of two elements, first corresponds to
+# haproxy container result and second to keepalived container result and the
+# same applicable for check_results.results
+- name: Ensuring latest haproxy config is used
+  command: docker exec haproxy /usr/local/bin/kolla_ensure_haproxy_latest_config
+  register: status
+  changed_when: status.stdout.find('changed') != -1
+  when:
+    - config_strategy == 'COPY_ALWAYS'
+    - container_envs.results[0]['KOLLA_CONFIG_STRATEGY'] != 'COPY_ONCE'
+    - check_results.results[0]['rc'] == 1
+    - inventory_hostname in groups['haproxy']
+
+- name: Restart keepalived container
+  kolla_docker:
+    name: "keepalived"
+    action: "restart_container"
+  when:
+    - config_strategy == 'COPY_ALWAYS'
+    - container_envs.results[1]['KOLLA_CONFIG_STRATEGY'] != 'COPY_ONCE'
+    - check_results.results[1]['rc'] == 1
+    - inventory_hostname in groups['haproxy']

ansible/roles/haproxy/tasks/reconfigure.yml

 ---
+- include: do_reconfigure.yml
+  serial: "30%"
+  when: inventory_hostname in groups['haproxy']