Ansible set_fact local and use on remote hosts

Question

I'm trying to get a version on local and use it as a var in other remote hosts

Using the set_fact module in ansible

On local

    - name: Set code version
      shell:  wget -O - -o /dev/null wget -O - -o /dev/null https://repo1.maven.org/maven2/org/brutusin/wava/maven-metadata.xml | grep -Po '(?<=<version>)([0-9\.]+(-SNAPSHOT)?)' | sort --version-sort -r| head -n 1
      register: shell_output

    - name: set version
      set_fact:
        code_version: "{{ shell_output.stdout }}"
        debug: var=code_version
        run_once: true

On Remote

    - name: test code version
      debug:
        msg: code version is " {{ code_version }} "

Getting the following error: The task includes an option with an undefined variable. The error was: 'code_version'

If there any way of achieving this??

Answer 1

You can access variables defined in other hosts with the hostvars variable.

For example:

- debug:
    msg: "{{ hostvars['localhost']['code_version'] }}"

Answer 2

You can use the below shared method to register a variable to persist between plays in Ansible – Different Target Hosts

On local

- name: Set code version
  shell:  wget -O - -o /dev/null wget -O - -o /dev/null https://repo1.maven.org/maven2/org/brutusin/wava/maven-metadata.xml | grep -Po '(?<=<version>)([0-9\.]+(-SNAPSHOT)?)' | sort --version-sort -r| head -n 1
  register: shell_output

- name: Register dummy host with variable
  add_host:
    name: "DUMMY_HOST"
    code_version: "{{ shell_output.stdout }}"

On Remote

- name: test code version
  debug:
    msg: code version is " {{ hostvars['DUMMY_HOST']['code_version'] }} "

It works.