Code:

- name: check previous kafka broker server.properties

    shell: "ps -ef | grep -i kafka | grep -i server.properties | awk 
'{print $NF}'"

    register: serverfile

    tags:

    - upgrade

    - upgrade12


  - name: debug grepout

    set_fact:

      srvfilepath: "{{ item }}"

    loop: "{{ serverfile.stdout_lines }}"

    when: "'server' in  item"

    tags:

    - upgrade

    - upgrade12

- name: get the interbroker and messge format version details if set

    shell: 'grep -e inter.broker.protocol.version -e 
log.message.format.version {{srvfilepath}}'

    register: regintbrkpt

    tags:

    - upgrade12

- name: display interbroker version

    debug:

      msg: "{{ item }}"

    loop:

    - "{{regintbrkpt.stdout_lines}}"

    tags:

    - upgrade12

  =====================================================


tal: [kafka-kafka-1.acceptance.cloud.8x8.com]: FAILED! => {"msg": "The task 
includes an option with an undefined variable. The error was: 'item' is 
undefined. 'item' is undefined\n\nThe error appears to be in 
'/Users/sameer_modak/ansibledemo/kafkainstall.yml': line 353, column 5, but 
may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe 
offending line appears to be:\n\n\n  - name: display interbroker version\n  
  ^ here\n"}

fatal: [kafka-kafka-2.acceptance.cloud.8x8.com]: FAILED! => {"msg": "The 
task includes an option with an undefined variable. The error was: 'item' 
is undefined. 'item' is undefined\n\nThe error appears to be in 
'/Users/sameer_modak/ansibledemo/kafkainstall.yml': line 353, column 5, but 
may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe 
offending line appears to be:\n\n\n  - name: display interbroker version\n  
  ^ here\n"}

fatal: [kafka-kafka-3.acceptance.cloud.8x8.com]: FAILED! => {"msg": "The 
task includes an option with an undefined variable. The error was: 'item' 
is undefined. 'item' is undefined\n\nThe error appears to be in 
'/Users/sameer_modak/ansibledemo/kafkainstall.yml': line 353, column 5, but 
may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe 
offending line appears to be:\n\n\n  - name: display interbroker version\n  
  ^ here\n"}




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