Update docker.io/library/postgres Docker tag to v15

inventories/chaosknoten/host_vars/lists.yaml

@@ -1,5 +1,7 @@
 docker_compose__compose_file_content: "{{ lookup('ansible.builtin.template', 'resources/chaosknoten/lists/docker_compose/compose.yaml.j2') }}"
 docker_compose__configuration_files:
+  - name: mailman-extra.cfg
+    content: "{{ lookup('ansible.builtin.file', 'resources/chaosknoten/lists/docker_compose/mailman-extra.cfg') }}"
   - name: settings_local.py
     content: "{{ lookup('ansible.builtin.file', 'resources/chaosknoten/lists/docker_compose/settings_local.py') }}"
 docker_compose__files: resources/chaosknoten/lists/docker_compose/files

resources/chaosknoten/lists/docker_compose/compose.yaml.j2

@@ -37,6 +37,7 @@ services:
       - database:database
     volumes:
       - /opt/mailman/web:/opt/mailman-web-data
+      - ./configs/mailman-extra.cfg:/opt/mailman/core/mailman-extra.cfg
       - ./configs/settings_local.py:/opt/mailman-web/settings_local.py
       - ./files/templates:/opt/mailman-web/templates
     environment:
@@ -62,7 +63,7 @@ services:
       - POSTGRES_DB=mailmandb
       - POSTGRES_USER=mailman
       - "POSTGRES_PASSWORD={{ secret__lists__postgres_password }}"
-    image: docker.io/library/postgres:12-alpine
+    image: docker.io/library/postgres:15-alpine
     volumes:
       - /opt/mailman/database:/var/lib/postgresql/data
     networks:

resources/chaosknoten/lists/docker_compose/mailman-extra.cfg

@@ -0,0 +1,6 @@
+# Override Mailman configuration settings
+# See https://github.com/maxking/docker-mailman#configuration
+# and https://docs.mailman3.org/projects/mailman/en/latest/src/mailman/config/docs/config.html
+
+[mailman]
+pending_request_life: 7d