unable to extract version out of registered output

[Sameer Modak]

Hello Team,

Code

name: debug grepout

    debug:

#      msg: "this is the version {{ vername.files.path }}"

      var: files_found_path

    tags: vern

Output:

files_found_path": [

        "/opt/confluent-7.2.5/kafka/share/java/kafka/kafka_2.13-7.2.5-ccs.jar"

    ]

 Above code is working but after that it failing with below code, i need 7.2.5 before -css in above output but failing to get that tried files_found_path[0].split(‘-‘) as well

 - name: get version

    set_fact:

      versionn: "{{ files_found_path.split(‘-‘)[0] }}"

TASK [get version] ***************************************************************************************************************************************************************************

fatal: [host1: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'list object' has no attribute 'split'. 'list object' has no attribute 'split'\n\nThe error appears to be in '/Users/sameer_modak/ansibledemo/testing.yml': line 54, 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: get version\n    ^ here\n"}

fatal: [host2]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'list object' has no attribute 'split'. 'list object' has no attribute 'split'\n\nThe error appears to be in '/Users/sameer_modak/ansibledemo/testing.yml': line 54, 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: get version\n    ^ here\n"}

fatal: [host3]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: 'list object' has no attribute 'split'. 'list object' has no a

Thanks in advance.

[Abhijeet Kasurde]

files_found_path is an array/list. So you need files_found_path[0].split

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Thanks,

Abhijeet Kasurde

[Sameer Modak]

i did try that as well but no luck as i have already mentioned in my previous conversation.

below is the complete code, output i want is 7.2.5 from jar line. thats it. But i m missing something may taking long route when simple solution is there

  - name: take command grep output

    shell: 

      cmd: "ps -ef | grep -i kafka | grep -i server.prop | awk -F'-cp' '{print $2}' | awk -F':' '{print $1}'"

    register: grepout

    tags: verchk1

  

  - name: setfact and pring 

    set_fact:

      pathd: "{{ (grepout.stdout.split('\n')[0] | replace('bin/../', '') | replace('*','') | replace(' /','/')) }}" 

#       pathd: "{% if  'kafka' in (grepout.stdout.split('\n')[0] | replace('bin/../', '') | replace('*','') | replace(' /','/')) %}'hi'{%else}'bye'{% endif %}}" 

#      - pathd1: "{% if 'kafka' in pathd %}pathd{% else %}''{% endif %}"

  

  - name: setfact for 2nd var

    set_fact:

      pathd1: "{% if 'kafka' in pathd %}{{pathd}}{% else %}''{% endif %}" 

  - name: pathd ls

    find:

      paths: "{{pathd1}}"

      patterns: "kafka_*ccs.jar"

#      use_regex: true

    register: vername

  - name : get the complete path

    set_fact:

#      files_found_path: "{{ vername.files.path[1] }}"

      files_found_path: "{{ vername.files | map(attribute='path') | list }}"

  - name: debug grepout

    debug:

#      msg: "this is the version {{ vername.files.path }}"

      var: files_found_path

    tags: vern

#  - name: get version

#    set_fact:

#      versionn: "{{ files_found_path.split('-')[1] }}"

#  - name: debug grepout

#    debug:

#      msg: "this is the version {{ vername.files.path }}"

#      var: versionn

#    tags: vern

[Abhijeet Kasurde]

Assuming you are getting 'files_found_path' as

TASK [debug] ****************************************************************************
ok: [localhost] => {
    "msg": [
        "/opt/confluent-7.2.5/kafka/share/java/kafka/kafka_2.13-7.2.5-ccs.jar"
    ]
}

I would write my playbook as -

    - debug:
        msg: "{{ files_found_path[0] | regex_replace(kafka_ver_regex, '\\2') }}"
      vars:
        kafka_ver_regex: (.*kafka_\d\.\d\d-)(\d\.\d\.\d)(-.*\.jar)

That would give me -

TASK [debug] ****************************************************************************
ok: [localhost] => {
    "msg": "7.2.5"
}

To view this discussion on the web visit https://groups.google.com/d/msgid/ansible-project/2b726fc8-85da-4b86-b851-55b4ebec0f40n%40googlegroups.com.

--

Thanks,

Abhijeet Kasurde

[Sameer Modak]

Thanks (faar aabhari) Abhijeet for your reply. but also i have to store that in variable so i ll have to use set_fact ryt or is there any simpler way in one line because if you see my code i had to use so many set_fact to 1st get one value then again store in another value. 

One more point i have to highlight is that when i get output of  my shell command jar path is not always the 1st item in list it sometimes 2nd so this is bit annoying .

for example,

 - name: take command grep output

    shell:

      cmd: "ps -ef | grep -i kafka | grep -i server.prop | awk -F'-cp' '{print $2}' | awk -F':' '{print $1}'"

    register: grepout

    tags: verchk1 

here output is not always constant

sometimes

"grepout.stdout": " /usr/bin/../share/java/kafka/*\n' '{print $2}' | awk -F'"

and sometimes 

"grepout.stdout": '{print $2}' | awk -F'" \n' " /usr/bin/../share/java/kafka/*"

    

This creates problems 

[Abhijeet Kasurde]

No problem,

You can use set_fact instead of debug task.

When you get a list of elements from the shell command, you can use `loop` or `with_items` to iterate over them and set the fact.