Refactored native-

roles/docker-health-check/files/docker-health-check.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+docker_ps_grep_unhealthy="$(docker ps --filter health=unhealthy --format '{{.Names}}')"
+docker_ps_grep_exited="$(docker ps --filter status=exited --format '{{.Names}}')"
+exitcode=0
+if [ ! -z "$docker_ps_grep_unhealthy" ]
+then 
+   echo "Some docker containers are unhealthy: $docker_ps_grep_unhealthy"
+   exitcode=1
+fi
+if [ ! -z "$docker_ps_grep_exited" ]
+then 
+   echo "Some docker containers exited: $docker_ps_grep_exited"
+   exitcode=2
+fi
+if [ "$exitcode" -ne "0" ]
+then 
+   exit $exitcode
+fi
+echo "All docker containers are healthy."
+exit

roles/docker-health-check/handlers/main.yml

@@ -0,0 +1,12 @@
+- name: "reload docker-health-check.service"
+  systemd:
+    name: docker-health-check.service
+    state: reloaded
+    enabled: yes
+    daemon_reload: yes
+- name: "restart docker-health-check.timer"
+  systemd:
+    name: docker-health-check.timer
+    state: restarted
+    enabled: yes
+    daemon_reload: yes

roles/docker-health-check/meta/main.yml

@@ -0,0 +1,2 @@
+dependencies:
+  - systemd_notifier

roles/docker-health-check/tasks/main.yml

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+- name: "create {{docker_health_check_folder}}"
+  file:
+    path: "{{docker_health_check_folder}}"
+    state: directory
+    mode: 0755
+
+- name: create docker-health-check.sh
+  copy:
+    src: docker-health-check.sh
+    dest: "{{docker_health_check_folder}}docker-health-check.sh"
+
+- name: create docker-health-check.service
+  template: src=docker-health-check.service.j2 dest=/etc/systemd/system/docker-health-check.service
+  notify: reload docker-health-check.service
+
+- name: create docker-health-check.timer
+  template:
+    src: docker-health-check.timer.j2
+    dest: "/etc/systemd/system/docker-health-check.timer"
+  notify: restart docker-health-check.timer

roles/docker-health-check/templates/docker-health-check.service.j2

@@ -0,0 +1,7 @@
+[Unit]
+Description=Checking docker health
+OnFailure=systemd-notifier@%n.service
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash {{docker_health_check_folder}}docker-health-check.sh

roles/docker-health-check/templates/docker-health-check.timer.j2

@@ -0,0 +1,10 @@
+[Unit]
+Description=starts docker-health-check.service
+
+[Timer]
+OnCalendar={{on_calendar_docker_health_check}}
+RandomizedDelaySec={{randomized_delay_sec}}
+Persistent=false
+
+[Install]
+WantedBy=timers.target

roles/docker-health-check/vars/main.yml

@@ -0,0 +1 @@
+docker_health_check_folder: "{{path_administrator_scripts}}docker-health-check/"