Add playbook to stop and backup services

playbooks/tasks/get-unused.yml

@@ -0,0 +1,17 @@
+- name: Get running compose projects
+  ansible.builtin.shell:
+    executable: /usr/bin/bash
+    cmd: |
+      set -o pipefail
+      docker container ls --format json \
+        | jq .Labels \
+        | grep -oe 'com.docker.compose.project=[a-zA-Z0-9_-]*' \
+        | sed -e 's/com.docker.compose.project=//' \
+        | sort \
+        | uniq
+  changed_when: false
+  register: docker_compose_projects_result
+
+- name: Set unused services
+  ansible.builtin.set_fact:
+    unused_services: "{{ docker_compose_projects_result.stdout_lines | difference(host_services) }}"