systemd-deploy.yaml

---
- name: Build Go application and deploy to remote hosts
  hosts: localhost
  vars:
    systemd_service_name: "{{application_name}}.service"
  tasks:
    - name: Build the Go application
      ansible.builtin.shell: |
          go get
          mkdir -p build
          swag init
          go build -o build/{{ go_binary }}
      changed_when: true
      failed_when: false
      register: go_build_result

    - name: Check Go build result
      ansible.builtin.fail:
        msg: "Go build failed! {{ go_build_result }}"
      when: go_build_result.rc != 0

    - name: Copy the Go binary to remote hosts
      ansible.builtin.copy:
        src: "build/{{ go_binary }}"
        dest: "{{ go_binary_path }}/{{ go_binary }}"
        mode: "0777"
        force: true
      become: true
      delegate_to: "{{ item }}"
      with_items: "{{ remote_hosts }}"

    - name: Create systemd service from template if it doesn't exist
      ansible.builtin.template:
        src: "ansible/service.yaml.j2"
        dest: "{{ systemd_service_path }}/{{ systemd_service_name }}"
        mode: "0644"
        force: true
      become: true
      delegate_to: "{{ item }}"
      with_items: "{{ remote_hosts }}"

    - name: Restart and enable the Go application service
      ansible.builtin.systemd:
        name: "{{ systemd_service_name }}"
        state: restarted
        enabled: true
        daemon_reload: true
      become: true
      throttle: 1
      delegate_to: "{{ item }}"
      with_items: "{{ remote_hosts }}"