Refactored docker-compose roles

roles/docker-container/templates/base.yml.j2

@@ -0,0 +1,9 @@
+{# Base for docker services #}
+
+    restart: {{docker_restart_policy}}
+    env_file:
+      - "{{docker_compose.files.env}}"
+    logging:
+      driver: journald
+
+{{ "\n" }}

roles/docker-container/templates/depends_on_dmbs.j2

@@ -0,0 +1,17 @@
+{# This template needs to be included in docker-compose.yml containers, which depend on a database, redis and optional additional volumes #}
+{% if applications | is_feature_enabled('central_database', application_id)
+      and not (applications[application_id].docker.redis.enabled
+               | default(false)
+               | bool) %}
+  depends_on: []
+{% else %}
+  depends_on:
+  {% if not applications | is_feature_enabled('central_database', application_id) %}
+    database:
+      condition: service_healthy
+  {% endif %}
+  {% if applications[application_id].docker.redis.enabled | default(false) | bool %}
+    redis:
+      condition: service_healthy
+  {% endif %}
+{% endif %}

roles/docker-container/templates/healthcheck/curl.yml.j2

@@ -0,0 +1,9 @@
+    healthcheck:
+      test:
+        - "CMD"
+        - "curl"
+        - "-f"
+        - "http://127.0.0.1{{ (":" ~ container_port) if container_port is defined else '' }}/{{ container_healthcheck | default('') }}"
+      interval: 1m
+      timeout: 10s
+      retries: 3

roles/docker-container/templates/healthcheck/msmtp_curl.yml.j2

@@ -0,0 +1,24 @@
+  
+{#
+  This health check ensures the test email is sent only once to prevent
+  hitting SMTP rate limits due to multiple health check executions.
+  The logic checks for a temporary file (/tmp/email_sent) to determine
+  if the email has already been sent. If the file exists, the email
+  is skipped, but the health check continues by verifying the HTTP service.
+  Refer to the conversation with ChatGPT (https://chatgpt.com/share/67898c3f-2c1c-800f-861c-47dcbe109135)
+  on January 16, 2025, for the background behind this complexity.
+
+  Additional it is also checked if the host is reachable
+#}
+
+    healthcheck:
+      test:
+        - CMD-SHELL
+        - >
+          if [ ! -f /tmp/email_sent ]; then
+            echo 'Subject: testmessage from {{domains | get_domain(application_id)}}\n\nSUCCESSFULL' | msmtp -t {{users.blackhole.email}} && touch /tmp/email_sent;
+          fi &&
+          curl -f http://localhost:80/ || exit 1
+      interval: 1m
+      timeout: 20s
+      retries: 3

roles/docker-container/templates/healthcheck/tcp.yml.j2

@@ -0,0 +1,6 @@
+    healthcheck:
+      test:
+        - "CMD"
+        - "bash"
+        - "-c"
+        - "exec 3<>/dev/tcp/localhost/{{ container_port }} && echo -e 'GET /{{ container_healthcheck | default('') }} HTTP/1.1\\r\\nHost: localhost\\r\\nConnection: close\\r\\n\\r\\n' >&3 && cat <&3 | grep -q 'HTTP/1.1'"

roles/docker-container/templates/healthcheck/wget.yml.j2

@@ -0,0 +1,10 @@
+    healthcheck:
+      test: 
+        - "CMD"
+        - "wget"
+        - "--spider"
+        - "--proxy=off"
+        - "http://127.0.0.1{{ (":" ~ container_port) if container_port is defined else '' }}/{{ container_healthcheck | default('') }}"
+      interval: 1m
+      timeout: 10s
+      retries: 3