LOG-7261: Implement AzureLogIngestion output in CLO

[Clee2691]

Description

This PR adds a new azureLogsIngestion output type that sends logs to Azure Monitor via the Logs Ingestion API.
The AzureMonitor output is deprecated and will be removed in a future release. Microsoft will retire the Data Collecter API in September 2026.

What's new:

• Output type AzureLogsIngestion with required DCR immutable ID, stream name, and URL, plus optional token scope, timestamp field, and tuning
• Two auth modes: clientSecret - long lived credentials and workloadIdentity - short lived tokens
• Functional tests using a Mockoon mock server (mocks both the OAuth2 token endpoint and the DCR ingestion
  endpoint over TLS)
• Refactored Azure test helpers into a shared test/helpers/azure/ package used by both azureMonitor and
  azureLogsIngestion
• Add deprecation API comment to AzureMonitor output

/cc @cahartma @vparfonov
/assign @jcantrill

Links

• JIRA: https://issues.redhat.com/browse/LOG-7261
• Enhancement proposal: https://github.com/openshift/enhancements/blob/master/enhancements/cluster-logging/workload-identity-auth-for-azure-monitor-logs.md

[Clee2691]

/test all

[openshift-ci-robot]

@Clee2691: This pull request references LOG-7261 which is a valid jira issue.

Warning: The referenced jira issue has an invalid target version for the target branch this PR targets: expected the task to target the "4.8.0" version, but no target version was set.

Details

In response to this:

Description

This PR adds a new azureLogsIngestion output type that sends logs to Azure Monitor via the Logs Ingestion API.
The AzureMonitor output is deprecated and will be removed in a future release. Microsoft will retire the Data Collecter API in September 2026.

What's new:

• Output type AzureLogsIngestion with required DCR immutable ID, stream name, and URL, plus optional token scope, timestamp field, and tuning
• Two auth modes: clientSecret - long lived credentials and workloadIdentity - short lived tokens
• Functional tests using a Mockoon mock server (mocks both the OAuth2 token endpoint and the DCR ingestion
  endpoint over TLS)
• Refactored Azure test helpers into a shared test/helpers/azure/ package used by both azureMonitor and
  azureLogsIngestion
• Add deprecation API comment to AzureMonitor output

/cc @cahartma @vparfonov
/assign @jcantrill

Links

• JIRA: https://issues.redhat.com/browse/LOG-7261
• Enhancement proposal: https://github.com/openshift/enhancements/blob/master/enhancements/cluster-logging/workload-identity-auth-for-azure-monitor-logs.md

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[openshift-ci]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[jcantrill]

Do we have any concerns this may get out of sync? Should we exclude it in favor of our reference doc?

[Clee2691]

What do you mean by reference doc? The API docs?

I think we should keep this as there is some background on the different API's (data collector, logs ingestion). This can be used to expand your below comment.

[jcantrill]

/hold
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Clee2691, jcantrill

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• OWNERS [jcantrill]

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[openshift-ci]

@Clee2691: all tests passed!

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