Ansible K8s module: Failed to import the required Python library (openshift) on Python /usr/bin/python3

Question

The env

Ansible 2.9.6 (python3)

Tried to run a simple playbook

- hosts: master
  gather_facts: no
  become: yes
  tasks:
    - name: create name space
      k8s:
        name: testing
        api_version: v1
        kind: Namespace
        state: present

Getting following error

The full traceback is:
Traceback (most recent call last):
  File "/tmp/ansible_k8s_payload_u121g92v/ansible_k8s_payload.zip/ansible/module_utils/k8s/common.py", line 33, in <module>
    import kubernetes
ModuleNotFoundError: No module named 'kubernetes'
fatal: [192.168.20.38]: FAILED! => {
    "changed": false,
    "error": "No module named 'kubernetes'",
    "invocation": {
        "module_args": {
            "api_key": null,
            "api_version": "v1",
            "append_hash": false,
            "apply": false,
            "ca_cert": null,
            "client_cert": null,
            "client_key": null,
            "context": null,
            "force": false,
            "host": null,
            "kind": "Namespace",
            "kubeconfig": null,
            "merge_type": null,
            "name": "testing",
            "namespace": null,
            "password": null,
            "proxy": null,
            "resource_definition": null,
            "src": null,
            "state": "present",
            "username": null,
            "validate": null,
            "validate_certs": null,
            "wait": false,
            "wait_condition": null,
            "wait_sleep": 5,
            "wait_timeout": 120
        }
    },
    "msg": "Failed to import the required Python library (openshift) on k8smasternode's Python /usr/bin/python3. Please read module documentation and install in the appropriate location. If the required library is installed, but Ansible is using the wrong Python interpreter, please consult the documentation on ansible_python_interpreter"
}

It confuses me that,

• the root cause is "no module named kubernetes"?
• or "Failed to import the required Python library (openshift) on Python /usr/bin/python3"?

And how to fix that?

Any help would be appreciated!

btw,

Kubernetes master node has /usr/bin/python3

Answer 1

I am a bit late to the party but since I faced this today and don't see an accepted answer, I am posting what worked for me.

Since you are running the tasks on remote servers, you must have openshift, pyyaml and kubernetes installed on the remote machines for this to work.

Add below tasks prior to creating namespaces:

- name: install pre-requisites
  pip:
    name:
      - openshift
      - pyyaml
      - kubernetes