helm - expand kubeconfig path with user's home dir (#654) (#696)

[backport/stable-2.4] helm - expand kubeconfig path with user's home dir (#654)

helm - expand kubeconfig path with user's home dir
SUMMARY
Currently the helm module fails when providing the default kubeconfig path explicitly, while the same path is fine for the k8s module.
ISSUE TYPE
Bugfix Pull Request
COMPONENT NAME
helm
ADDITIONAL INFORMATION

name: Deploy kubelet-csr-approver delegate_to: client run_once: true kubernetes.core.helm: update_repo_cache: true kubeconfig: "~/.kube/config" state: present name: kubelet-csr-approver namespace: kubelet-csr-approver create_namespace: true chart_ref: kubelet-csr-approver/kubelet-csr-approver chart_version: 1.0.5 values: "{{ lookup('template', 'values.yaml.j2') | from_yaml }}" atomic: true

Before change:
TASK [kubernetes/kubelet_csr_approver : Deploy kubelet-csr-approver] *** An exception occurred during task execution. To see the full traceback, use -vvv. The error was: FileNotFoundError: [Errno 2] No such file or directory: '/.kube/config'
fatal: [node-1 -> client(192.168.121.56)]: FAILED! => {"changed": false, "module_stderr": "", "module_stdout": "Traceback (most recent call last):\r\n  File "/home/vagrant/.ansible/tmp/ansible-tmp-1697293347.7135417-118207-9805169252135/AnsiballZ_helm.py", line 107, in \r\n    _ansiballz_main()\r\n  File "/home/vagrant/.ansible/tmp/ansible-tmp-1697293347.7135417-118207-9805169252135/AnsiballZ_helm.py", line 99, in _ansiballz_main\r\n    invoke_module(zipped_mod, temp_path, ANSIBALLZ_PARAMS)\r\n  File "/home/vagrant/.ansible/tmp/ansible-tmp-1697293347.7135417-118207-9805169252135/AnsiballZ_helm.py", line 47, in invoke_module\r\n    runpy.run_module(mod_name='ansible_collections.kubernetes.core.plugins.modules.helm', init_globals=dict(_module_fqn='ansible_collections.kubernetes.core.plugins.modules.helm', _modlib_path=modlib_path),\r\n  File "/usr/lib/python3.10/runpy.py", line 224, in run_module\r\n    return _run_module_code(code, init_globals, run_name, mod_spec)\r\n  File "/usr/lib/python3.10/runpy.py", line 96, in _run_module_code\r\n    _run_code(code, mod_globals, init_globals,\r\n  File "/usr/lib/python3.10/runpy.py", line 86, in _run_code\r\n    exec(code, run_globals)\r\n  File "/tmp/ansible_kubernetes.core.helm_payload_o8s36dti/ansible_kubernetes.core.helm_payload.zip/ansible_collections/kubernetes/core/plugins/modules/helm.py", line 924, in \r\n  File "/tmp/ansible_kubernetes.core.helm_payload_o8s36dti/ansible_kubernetes.core.helm_payload.zip/ansible_collections/kubernetes/core/plugins/modules/helm.py", line 737, in main\r\n  File "/tmp/ansible_kubernetes.core.helm_payload_o8s36dti/ansible_kubernetes.core.helm_payload.zip/ansible_collections/kubernetes/core/plugins/modules/helm.py", line 435, in run_repo_update\r\n  File "/tmp/ansible_kubernetes.core.helm_payload_o8s36dti/ansible_kubernetes.core.helm_payload.zip/ansible_collections/kubernetes/core/plugins/module_utils/helm.py", line 169, in run_helm_command\r\n  File "/tmp/ansible_kubernetes.core.helm_payload_o8s36dti/ansible_kubernetes.core.helm_payload.zip/ansible_collections/kubernetes/core/plugins/module_utils/helm.py", line 162, in env_update\r\n  File "/tmp/ansible_kubernetes.core.helm_payload_o8s36dti/ansible_kubernetes.core.helm_payload.zip/ansible_collections/kubernetes/core/plugins/module_utils/helm.py", line 120, in _prepare_helm_environment\r\nFileNotFoundError: [Errno 2] No such file or directory: '/.kube/config'\r\n", "msg": "MODULE FAILURE\nSee stdout/stderr for the exact error", "rc": 1}
After change:
TASK [kubernetes/kubelet_csr_approver : Deploy kubelet-csr-approver] *** changed: [node-1 -> client(192.168.121.56)]
Reviewed-by: Mike Graves mgraves@redhat.com
Reviewed-by: Bikouo Aubin
(cherry picked from commit 9f7c865)

changelogs/fragments/654-helm-expand-user.yml

@@ -0,0 +1,3 @@
+---
+bugfixes:
+  - helm - expand kubeconfig path with user's home directory for consistency with k8s

plugins/module_utils/helm.py

@@ -117,7 +117,7 @@ class AnsibleHelmModule(object):
         kubeconfig = self.params.get("kubeconfig")
         if kubeconfig:
             if isinstance(kubeconfig, string_types):
-                with open(kubeconfig) as fd:
+                with open(os.path.expanduser(kubeconfig)) as fd:
                     kubeconfig_content = yaml.safe_load(fd)
             elif isinstance(kubeconfig, dict):
                 kubeconfig_content = kubeconfig