Remove deprecated localhost debug config endpoint

[pjanotti]

Description: Removed the deprecated localhost config endpoint and related environment variables.

[codecov]

Codecov Report

❌ Patch coverage is 83.33333% with 6 lines in your changes missing coverage. Please review.
✅ Project coverage is 37.83%. Comparing base (c1e8125) to head (4dc8398).
⚠️ Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/configconverter/expvar.go	82.85%	6 Missing ⚠️

❌ Your patch check has failed because the patch coverage (83.33%) is below the target coverage (85.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6984      +/-   ##
==========================================
- Coverage   38.00%   37.83%   -0.17%     
==========================================
  Files         367      366       -1     
  Lines       25713    25619      -94     
==========================================
- Hits         9771     9692      -79     
+ Misses      15129    15116      -13     
+ Partials      813      811       -2     

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[pjanotti]

splunk-ta-otel-build/packaging/technical-addon / test (9.4) (pull_request) to be fixed via https://github.com/signalfx/splunk-otel-collector/pull/6980/files#r2589899188

[Copilot]

Pull request overview

This PR removes the deprecated localhost debug config endpoint (http://localhost:55554/debug/configz) and all related environment variables (SPLUNK_DEBUG_CONFIG_SERVER and SPLUNK_DEBUG_CONFIG_SERVER_PORT). The functionality has been replaced by the expvarz endpoint available through the zpages extension.

Key changes:

• Deleted the ConfigServer implementation and its tests
• Removed environment variable references from scripts and configuration files
• Moved redaction utility functions to the ExpvarConverter
• Updated test files to remove config server dependencies

Reviewed changes

Copilot reviewed 18 out of 21 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
internal/configconverter/config_server.go	Deleted deprecated ConfigServer implementation
internal/configconverter/config_server_test.go	Deleted ConfigServer tests
internal/configconverter/expvar.go	Added simpleRedact and shouldRedactKey utility functions
cmd/otelcol/main.go	Removed ConfigServer initialization and registration
cmd/otelcol/main_test.go	Updated port waits from 55554 to 55679 (zpages)
packaging/msi/splunk-support-bundle.ps1	Removed localhost:55554 config collection
packaging/fpm/etc/otel/collector/splunk-support-bundle.sh	Removed localhost:55554 config collection
packaging/technical-addon/Splunk_TA_otel/windows_x86_64/bin/Splunk_TA_otel.cmd	Removed SPLUNK_DEBUG_CONFIG_SERVER environment variable handling
packaging/technical-addon/Splunk_TA_otel/linux_x86_64/bin/Splunk_TA_otel.sh	Removed SPLUNK_DEBUG_CONFIG_SERVER environment variable handling
packaging/technical-addon/Splunk_TA_otel/README/inputs.conf.spec	Removed splunk_debug_config_server parameter documentation
packaging/technical-addon/packaging-scripts/cicd-tests/envvars/envvartest.sh	Removed SPLUNK_DEBUG_CONFIG_SERVER test references
packaging/technical-addon/packaging-scripts/cicd-tests/envvars/passthrough_env_vars.yaml	Removed SPLUNK_DEBUG_CONFIG_SERVER passthrough configuration
tests/general/discoverymode/configd_test.go	Removed SPLUNK_DEBUG_CONFIG_SERVER=false from test command
tests/general/discoverymode/docker_observer_discovery_test.go	Removed SPLUNK_DEBUG_CONFIG_SERVER=false from test command
tests/general/discoverymode/host_observer_discovery_test.go	Removed SPLUNK_DEBUG_CONFIG_SERVER=false from test command
tests/general/configsources/vault_test.go	Updated comment to remove reference to config endpoint
.github/workflows/win-package-test.yml	Added working-directory specification for test commands
.github/workflows/scripts/win-required-ports.ps1	Removed port 55554 reservation
go.mod	Removed unused test dependencies
go.sum	Removed checksums for unused dependencies
.chloggen/remove-config-debug-server.yaml	Added changelog entry for breaking change

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[crobert-1]

Are these working-directory changes related to this PR?

[pjanotti]

Yes they are. Removal of the component triggered changes to go.mod, and those required the working-directory. To be fair I don't fully understand why that is the case, but after the changes to with go.mod and respective tidy this is the simplest fix that I found.

[Copilot]

Pull request overview

Copilot reviewed 18 out of 21 changed files in this pull request and generated 2 comments.

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[Copilot]

Pull request overview

Copilot reviewed 18 out of 21 changed files in this pull request and generated 1 comment.

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[Copilot]

Pull request overview

Copilot reviewed 18 out of 21 changed files in this pull request and generated 1 comment.

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