tendermint/ansible-tendermint/tasks/start.yml

---

- name: copy genesis file
  template: >
    src=genesis.json.j2
    dest={{tendermint_home}}/genesis.json
    owner={{tendermint_user}}
    group={{tendermint_group}}
    mode=0644
  register: genesis_file_copied

- name: get validators number from genesis file
  shell: cat {{tendermint_home}}/genesis.json | jq ".validators | length"
  register: num_validators
  when: genesis_file_copied|changed

- name: restart tendermint if number of validators greater than 0
  shell: echo "restarting ..."
  when: genesis_file_copied|changed and num_validators.stdout|int > 0
  notify: restart tendermint