testbed_set_l2_mode.yml

- hosts: sonic
  gather_facts: no
  tasks:

  - name: Generate initial l2 mode config
    shell: sonic-cfggen -H -k {{ hwsku }} -p --preset l2 > /tmp/init_l2_config.json

  - name: Read the initial l2 config json content
    shell: cat /tmp/init_l2_config.json
    register: output

  - name: Parse the initial l2 config json content to dict
    set_fact:
      l2_config: "{{ output.stdout | from_json }}"

  - set_fact:
      mgmt_addr: "{{ ansible_ssh_host + '/' + mgmt_subnet_mask_length | string }}"

  - name: Prepare extra l2 configs
    set_fact:
      metadata: "{{ {'DEVICE_METADATA': {'localhost': {'type': 'ToRRouter', 'hostname': inventory_hostname}}} }}"
      mgmt_interface: "{{ {'MGMT_INTERFACE': {'eth0|' + mgmt_addr: {'gwaddr': mgmt_addr | first_ip_of_subnet}}} }}"
      mgmt_port: "{{ {'MGMT_PORT': {'eth0': {'admin_status': 'up', 'alias': 'eth0'}}} }}"

  - name: Update l2 config with more configurations
    set_fact:
      l2_config: "{{ l2_config | combine(metadata, mgmt_interface, mgmt_port, recursive=True) }}"

  - name: Backup the normal config_db.json file
    shell: if [ ! -f /etc/sonic/config_db.json.normal ]; then cp /etc/sonic/config_db.json /etc/sonic/config_db.json.normal; fi
    become: yes

  - name: Dump the l2_config to /etc/sonic/config_db.json
    copy:
      content: "{{ l2_config | to_nice_json(indent=4) }}"
      dest: /etc/sonic/config_db.json
    become: yes

  - name: Execute cli "config reload -y" to apply new config_db.json
    shell: config reload -y
    become: yes

  - name: Wait for switch to become reachable again
    local_action: wait_for
    args:
      host: "{{ ansible_host }}"
      port: 22
      state: started
      search_regex: "OpenSSH_[\\w\\.]+ Debian"
      delay: 10
      timeout: 600
    changed_when: false

  - name: Wait some time for switch to stabilize
    pause:
      seconds: 60

  - name: Check the new vlan config
    shell: show vlan config

  - name: Check interface status
    shell: show int status