Add support for env variables in custom parameters for the unified image

[johscheuer]

Description

Fixes: #1032

Type of change

Please select one of the options below.

• Bug fix (non-breaking change which fixes an issue)

Discussion

Testing

Added a new test and ran it with the unified image.

Documentation

Follow-up

[johscheuer]

Test results from the manual run:

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SSSSSSSSSS
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Operator when setting a locality that is using an environment variable should update the locality with the substituted environment variable [e2e, pr]
/Users/jscheuermann/go/src/github.com/FoundationDB/fdb-kubernetes-operator/e2e/test_operator/operator_test.go:2179
  2024/05/22 19:21:31 UpdateClusterSpec: specUpdated: false
  2024/05/22 19:21:32 UpdateClusterSpec: specUpdated: true
  2024/05/22 19:21:39 UpdateClusterSpec: specUpdated: false
  2024/05/22 19:21:41 UpdateClusterSpec: specUpdated: true
  2024/05/22 19:21:41 waiting until the cluster jscheuermann/jdev is healthy and reconciled
  2024/05/22 19:24:21 reconciled name=jdev, namespace=jscheuermann, generation:3
  2024/05/22 19:24:21 waiting until the cluster jscheuermann/jdev is healthy and reconciled
  2024/05/22 19:24:22 reconciled name=jdev, namespace=jscheuermann, generation:3
• [203.776 seconds]
------------------------------
[AfterSuite]
/Users/jscheuermann/go/src/github.com/FoundationDB/fdb-kubernetes-operator/e2e/test_operator/operator_test.go:97
[AfterSuite] PASSED [0.000 seconds]
------------------------------
[ReportAfterSuite] Autogenerated ReportAfterSuite for --junit-report
autogenerated by Ginkgo
[ReportAfterSuite] PASSED [0.005 seconds]
------------------------------

Ran 1 of 50 Specs in 440.161 seconds
SUCCESS! -- 1 Passed | 0 Failed | 9 Pending | 40 Skipped
PASS | FOCUSED
FAIL    github.com/FoundationDB/fdb-kubernetes-operator/e2e/test_operator       440.621s
FAIL

[foundationdb-ci]

Result of fdb-kubernetes-operator-pr on Linux CentOS 7

• Commit ID: 5ee0e4b
• Duration 2:26:09
• Result: ❌ FAILED
• Error: Error while executing command: if $fail_test; then exit 1; fi. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of fdb-kubernetes-operator-pr on Linux CentOS 7

• Commit ID: 8e28316
• Duration 2:23:36
• Result: ✅ SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[nicmorales9]

LGTM