playbook with block and rescue

block.yaml

---
- hosts: k8s-cluster
  gather_facts: false
  any_errors_fatal: true
  tasks:
  - name: try block
    when: inventory_hostname not in groups['kube-master']
    block:
      - name: first try
        command: /bin/false
        register: try_result
        changed_when: try_result is success
    rescue:
      - name: second try
        command: /bin/false
        register: try_result
        changed_when: try_result is success
    always:
      - name: display error
        when: try_result is failed
        debug:
          var: try_result.stderr_lines
      # - name: Failed when twice try both failed
      #   command: /bin/false
      #   when: try_result is failed
  - name: test if still running
    debug:
      msg: "still running"