backup_configs_array_group.yaml

# This playbook will back up the running configuration from Cisco IOS or Arista
# EOS devices.   The following arguments must be set at runtime in order for
# this playbook to run successfully
#
# - git_repo_url: The URL of the Git repository to commit the configurations to
# - git_repo_branch: The Git branch to use
---
- name: Backup configurations from network devices

  hosts: "{{ target_group | default('all') }}"
  gather_facts: no
  strategy: ansible.builtin.linear

  pre_tasks:
    - name: fail if git_repo_url is not defined
      ansible.builtin.fail:
        msg: "missing required variable: git_repo_url"
      when: git_repo_url is undefined or git_repo_url == ""
      run_once: true

    - name: fail if git_repo_branch is not defined
      ansible.builtin.fail:
        msg: "missing required variable: git_repo_branch"
      when: git_repo_branch is undefined or git_repo_url == ""  
      run_once: true

  tasks:
    - name: Backup device configurations and commit to git
      block:

      - name: create temp directory
        ansible.builtin.tempfile:
          state: directory
        register: tempdir
        run_once: true

      - name: clone existing repository
        ansible.builtin.git:
          key_file: "ssh -i /opt/custom/ssh/id_rsa"
          repo: "{{ git_repo_url }}"
          dest: "{{ tempdir.path }}"
        run_once: true

      - name: ensure configuration directory exists
        ansible.builtin.file:
          path: "{{ tempdir.path }}/configurations/{{ group_names[0] }}"
          state: directory
        run_once: true

      - name: Check if target_devices is defined 
        assert: 
          that: target_devices is not defined or target_devices | length == 0 or inventory_hostname in target_devices 
          fail_msg: "This host is not in the target_devices list" 

      - name: Gather configuration from Cisco IOS devices
        when:
          - ansible_network_os == 'ios'
          - target_devices is not defined or target_devices | length == 0 or inventory_hostname in target_devices
        ios_command:
          commands:
            - show running-config
        register: ios_config
    
      - name: Gather configuration from Arista EOS devices
        when:
          - ansible_network_os == 'eos'
          - target_devices is not defined or target_devices | length == 0 or inventory_hostname in target_devices
        eos_command:
          commands:
            - show running-config
        register: eos_config

      - name: Set device_config
        set_fact:
          device_config: "{{ ios_config | combine(eos_config) }}"

      - name: fail if device_config is not defined
        ansible.builtin.fail:
          msg: "Something went wrong gathering: device_config"
        when: device_config is undefined or device_config == ""

      - name: Save device_config to a file
        ansible.builtin.copy:
            content: "{{ device_config.stdout[0] }}"
            dest: "{{ tempdir.path }}/{{ ansible_network_os }}/{{ inventory_hostname_short }}.txt"
        
      - name: Add updated files to git
        ansible.builtin.shell: |
            git add .
            git commit -m 'Backup configurations'
            git push -u origin {{ git_repo_branch }}          
        args:
          chdir: "{{ tempdir.path }}"
        environment:
          GIT_SSH_COMMAND: "ssh -i /opt/custom/ssh/id_rsa"
          
      always:
        - name: Delete temp directory
          ansible.builtin.file:
            path: "{{ tempdir.path }}"
            state: absent
          run_once: true