Standardize on using kubernetes.core instead of kubectl commands

[Andy-Tr]

Is your feature request related to a problem? Please describe.

When a site requires a proxy server to access the K8S api from outside the cluster, multiple environment variables must be defined. The Ansible kubernetes core functions use K8S_AUTH_PROXY. The kubectl command uses HTTP_PROXY and HTTPS_PROXY.

Describe the solution you'd like

The deployment tool should standardize on using the Ansible kubernetes core functions instead of using kubectl commands directly. The K8S_AUTH_PROXY environment variable could then be passed when invoking the docker container.

Describe alternatives you've considered

Using both K8S_AUTH_PROXY and HTTP_PROXY/HTTPS_PROXY causes the SASDeployment CR to have proxy settings, which won't work inside the cluster. Customizations are required to support a proxy environment to pass the HTTP proxy values to the steps which still use kubectl.

Additional context

No response

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