fix: Propagate proxy config into oauth-proxy sidecar container

[tolusha]

Signed-off-by: Anatolii Bazko abazko@redhat.com

What does this PR do?

Propagate proxy config into oauth-proxy sidecar container

Screenshot/screencast of this PR

N/A

What issues does this PR fix or reference?

eclipse-che/che#21088

How to test this PR?

1. launch openshift cluster behind proxy
2. deploy Eclipse Che

chectl server:deploy \
     --platform openshift \
     --che-operator-image abazko/operator:21088

PR Checklist

As the author of this Pull Request I made sure that:

• The Eclipse Contributor Agreement is valid
• Code produced is complete
• Code builds without errors
• Tests are covering the bugfix
• Custom resource definition file is up to date
• OLM bundles are up to date
• The repository devfile is up to date and works
• Sections What issues does this PR fix or reference and How to test this PR completed
• Relevant user documentation updated
• Relevant contributing documentation updated
• CI/CD changes implemented, documented and communicated

Reviewers

Reviewers, please comment how you tested the PR when approving it.

[codecov]

Codecov Report

Merging #1317 (1bb9459) into main (df718e6) will increase coverage by 0.06%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main    #1317      +/-   ##
==========================================
+ Coverage   60.46%   60.53%   +0.06%     
==========================================
  Files          77       77              
  Lines        6342     6353      +11     
==========================================
+ Hits         3835     3846      +11     
  Misses       2121     2121              
  Partials      386      386              

Impacted Files	Coverage Δ
pkg/deploy/gateway/gateway.go	84.41% <100.00%> (ø)
pkg/deploy/gateway/oauth_proxy.go	76.15% <100.00%> (+2.20%)	⬆️

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[amisevsk]

👍

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: amisevsk, tolusha

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[amisevsk]

@tolusha Is there an image built with both this PR and #1318? I'd like to verify both at once in a proxy environment

[tolusha]

Pls use docker.io/abazko/operator:proxy includes (both PRs)

[amisevsk]

Tested on OpenShift 4.9 with proxy enabled. Issue eclipse-che/che#21088 is fixed and dashboard is accessible 👍