added global proxy variables

[ATGardner]

What

JIRA confluence

added

global:
  httpProxy: ''
  httpsProxy: ''
  noProxy: ''

values, which will end up as HTTP_PROXY, HTTPS_PROXY and NO_PROXY environment variables on needed Pods.

Why

will allow to easily configure a forward-proxy, if the cluster is air-gapped, with the only access is through a specific server.

Notes

currently does not handle argocd-repo-server, which should be manually set using

  argo-cd:
    repoServer:
      env:
        - name: HTTP_PROXY
          value: '...'
        - name: HTTPS_PROXY
          value: '...'
        - name: NO_PROXY
          value: '...'

also - services should communicate with each other using FQDN, and not just the service name, to easily define the NO_PROXY.