Implement fully automated Jenkins HW8 setup with Ansible, JCasC and JJB

ansible/ansible.cfg

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+[defaults]
+inventory = ./inventory/hosts.ini
+host_key_checking = False
+stdout_callback = yaml
+timeout = 30

ansible/inventory/hosts.ini

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+[local]
+localhost ansible_connection=local

ansible/playbooks/down.yml

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+---
+- name: Destroy OTUS HW8 Jenkins infrastructure
+  hosts: local
+  gather_facts: false
+  vars:
+    hw8_root: "{{ playbook_dir }}/../.."
+    compose_dir: "{{ hw8_root }}/compose"
+    compose_file: "{{ compose_dir }}/docker-compose.yml"
+    compose_env_file: "{{ compose_dir }}/.env"
+
+  tasks:
+    - name: Stop and remove compose stack
+      ansible.builtin.command:
+        cmd: docker compose -f {{ compose_file }} --env-file {{ compose_env_file }} down -v --remove-orphans
+      args:
+        chdir: "{{ compose_dir }}"

ansible/playbooks/site.yml

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+---
+- name: Deploy OTUS HW8 Jenkins infrastructure
+  hosts: local
+  gather_facts: true
+  vars:
+    hw8_root: "{{ playbook_dir }}/../.."
+    compose_dir: "{{ hw8_root }}/compose"
+    compose_file: "{{ compose_dir }}/docker-compose.yml"
+    compose_env_file: "{{ compose_dir }}/.env"
+
+  tasks:
+    - name: Check Docker CLI availability
+      ansible.builtin.command: docker --version
+      changed_when: false
+
+    - name: Check Docker Compose availability
+      ansible.builtin.command: docker compose version
+      changed_when: false
+
+    - name: Create compose env file from template if missing
+      ansible.builtin.copy:
+        src: "{{ compose_dir }}/.env.example"
+        dest: "{{ compose_env_file }}"
+        force: true
+        mode: "0644"
+
+    - name: Ensure image build script is executable
+      ansible.builtin.file:
+        path: "{{ compose_dir }}/scripts/build_and_push_images.sh"
+        mode: "0755"
+
+    - name: Pre-pull Jenkins base image (retry on Docker Hub timeouts)
+      ansible.builtin.command:
+        cmd: docker pull jenkins/jenkins:2.541.3-lts-jdk21
+      register: pull_jenkins_base
+      retries: 6
+      delay: 20
+      until: pull_jenkins_base.rc == 0
+
+    - name: Build and start registry, jenkins and nginx
+      ansible.builtin.command:
+        cmd: docker compose -f {{ compose_file }} --env-file {{ compose_env_file }} up -d --build registry jenkins nginx
+      args:
+        chdir: "{{ compose_dir }}"
+      register: compose_bootstrap
+      retries: 4
+      delay: 20
+      until: compose_bootstrap.rc == 0
+
+    - name: Wait for Jenkins to become available
+      ansible.builtin.uri:
+        url: "http://127.0.0.1:8081/login"
+        status_code: 200
+      register: jenkins_ready
+      retries: 60
+      delay: 5
+      until: jenkins_ready.status == 200
+
+    - name: Build and push slave/test images to local registry
+      ansible.builtin.command:
+        cmd: ./scripts/build_and_push_images.sh localhost:5005 1.0.0
+      args:
+        chdir: "{{ compose_dir }}"
+      register: build_and_push_result
+      retries: 3
+      delay: 20
+      until: build_and_push_result.rc == 0
+
+    - name: Start swarm agents
+      ansible.builtin.command:
+        cmd: docker compose -f {{ compose_file }} --env-file {{ compose_env_file }} up -d agent-maven agent-jjb
+      args:
+        chdir: "{{ compose_dir }}"
+
+    - name: Build jobs_uploader image with latest changes
+      ansible.builtin.command:
+        cmd: docker compose -f {{ compose_file }} --env-file {{ compose_env_file }} build jobs_uploader
+      args:
+        chdir: "{{ compose_dir }}"
+
+    - name: Remove stale jobs_uploader run containers
+      ansible.builtin.shell: |
+        ids="$(docker ps -aq --filter "name=jobs_uploader-run" || true)"
+        if [ -n "${ids}" ]; then
+          docker rm -f ${ids}
+        fi
+      args:
+        executable: /bin/bash
+
+    - name: Upload Jenkins jobs via JJB container
+      ansible.builtin.command:
+        cmd: timeout 900 docker compose -f {{ compose_file }} --env-file {{ compose_env_file }} run --rm jobs_uploader
+      args:
+        chdir: "{{ compose_dir }}"
+
+    - name: Show endpoint details
+      ansible.builtin.debug:
+        msg:
+          - "Jenkins UI: http://localhost:8088 (via nginx) or http://localhost:8081"
+          - "Registry: http://localhost:5005/v2/"