OCPBUGS-38468: use default route mtu

[eslutsky]

introduce parser for "/proc/net/route" to determine if the host has a default gateway set, then use its MTU,
the original solution was based on net.GetHostIP which didn't cover cases when we dont have any network connection (hardcoded nodeIP with loopback) .

[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

[openshift-ci-robot]

@eslutsky: This pull request references Jira Issue OCPBUGS-38468, which is valid. The bug has been moved to the POST state.

3 validation(s) were run on this bug

• bug is open, matching expected state (open)
• bug target version (4.19.0) matches configured target version for branch (4.19.0)
• bug is in the state ASSIGNED, which is one of the valid states (NEW, ASSIGNED, POST)

Requesting review from QA contact:
/cc @jogeo

The bug has been updated to refer to the pull request using the external bug tracker.

In response to this:

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: eslutsky

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[eslutsky]

/test metal-periodic-test

[openshift-ci]

@eslutsky: The specified target(s) for /test were not found.
The following commands are available to trigger required jobs:

/test e2e-aws-footprint-and-performance

/test e2e-aws-tests

/test e2e-aws-tests-arm

/test e2e-aws-tests-bootc

/test e2e-aws-tests-bootc-arm

/test e2e-aws-tests-bootc-periodic

/test e2e-aws-tests-bootc-periodic-arm

/test e2e-aws-tests-cache

/test e2e-aws-tests-cache-arm

/test e2e-aws-tests-periodic

/test e2e-aws-tests-periodic-arm

/test images

/test ocp-full-conformance-optional-components-rhel-eus

/test ocp-full-conformance-optional-components-rhel-eus-arm

/test ocp-full-conformance-rhel-eus

/test ocp-full-conformance-rhel-eus-arm

/test ocp-full-conformance-serial-optional-components-rhel-eus

/test ocp-full-conformance-serial-optional-components-rhel-eus-arm

/test ocp-full-conformance-serial-rhel-eus

/test ocp-full-conformance-serial-rhel-eus-arm

/test test-rpm

/test test-unit

/test verify

The following commands are available to trigger optional jobs:

/test security

/test test-rebase

Use /test all to run the following jobs that were automatically triggered:

pull-ci-openshift-microshift-main-e2e-aws-tests

pull-ci-openshift-microshift-main-e2e-aws-tests-arm

pull-ci-openshift-microshift-main-e2e-aws-tests-bootc

pull-ci-openshift-microshift-main-e2e-aws-tests-bootc-arm

pull-ci-openshift-microshift-main-images

pull-ci-openshift-microshift-main-ocp-full-conformance-rhel-eus

pull-ci-openshift-microshift-main-ocp-full-conformance-rhel-eus-arm

pull-ci-openshift-microshift-main-ocp-full-conformance-serial-rhel-eus

pull-ci-openshift-microshift-main-ocp-full-conformance-serial-rhel-eus-arm

pull-ci-openshift-microshift-main-security

pull-ci-openshift-microshift-main-test-unit

pull-ci-openshift-microshift-main-verify

In response to this:

/test metal-periodic-test

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[eslutsky]

/test e2e-aws-tests-periodic

[eslutsky]

/test e2e-aws-tests-periodic

[openshift-ci-robot]

@eslutsky: This pull request references Jira Issue OCPBUGS-38468, which is valid.

3 validation(s) were run on this bug

• bug is open, matching expected state (open)
• bug target version (4.19.0) matches configured target version for branch (4.19.0)
• bug is in the state POST, which is one of the valid states (NEW, ASSIGNED, POST)

Requesting review from QA contact:
/cc @jogeo

In response to this:

introduce parser for "/proc/net/route" to determine if the host has a default gateway set, then use its MTU,
the original solution was based on net.GetHostIP which didn't cover cases when we dont have any network connection (hardcoded nodeIP with loopback) .

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the openshift-eng/jira-lifecycle-plugin repository.

[eslutsky]

/test e2e-aws-tests-periodic

[eslutsky]

/test verify

[openshift-ci]

@eslutsky: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/ocp-full-conformance-rhel-eus	5c5bb6e	link	true	/test ocp-full-conformance-rhel-eus
ci/prow/ocp-full-conformance-serial-rhel-eus	5c5bb6e	link	true	/test ocp-full-conformance-serial-rhel-eus

Full PR test history. Your PR dashboard.

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