Ansible: remove unwanted characters in stdout

Question

I am running an ansible play where I want to parse the output of the kubect cluser-info command.

What I expected to get is:

    $ kubectl cluster-info
    Kubernetes master is running at https://192.168.60.11:6443
    KubeDNS is running at https://192.168.60.11:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

    To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.

What I am actually getting from the following tasks:

    - name: master_setup.yml --> Check if cluster is already running and exit if so
      shell: "kubectl cluster-info"
      failed_when: false
      register: rv_cluster_info
      environment:
        KUBECONFIG: "/etc/kubernetes/admin.conf"
      become: yes


    - name: master_setup.yml --> DEBUG
      debug:
        var: rv_cluster_info

is this:

ok: [kubernetes-master-1] => 
  rv_cluster_info:
    changed: true
    cmd: kubectl cluster-info
    delta: '0:00:00.174232'
    end: '2019-04-07 09:41:39.237907'
    failed: false
    failed_when_result: false
    rc: 0
    start: '2019-04-07 09:41:39.063675'
    stderr: ''
    stderr_lines: []
    stdout: |-
      [0;32mKubernetes master[0m is running at [0;33mhttps://192.168.60.11:6443[0m
      [0;32mKubeDNS[0m is running at [0;33mhttps://192.168.60.11:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy[0m

      To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.
    stdout_lines:
    - "\e[0;32mKubernetes master\e[0m is running at \e[0;33mhttps://192.168.60.11:6443\e[0m"
    - "\e[0;32mKubeDNS\e[0m is running at \e[0;33mhttps://192.168.60.11:6443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy\e[0m"
    - ''
    - To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.

How can I get rid of this irritating \e[0;33 stuff?

edit: Apparently these are color codes printed by kubectl by default.

Answer 1

This did the trick

- name: master_setup.yml --> DEBUG REGEX
  debug:
    var: rv_cluster_info.stdout | regex_replace('\x1B\[([0-9]{1,2}(;[0-9]{1,2})?)?[mGK]', '')

regex used from this SO answer.