ci(docs): migrate hub.pingcap.net images to cloud-accessible registries

[Copilot]

hub.pingcap.net is an internal IDC registry unreachable from cloud environments. The pingcap/docs pipeline pod specs referenced two images from it.

Image replacements

Old	New
hub.pingcap.net/jenkins/docs-cn-checker:v1.0.0	us-docker.pkg.dev/pingcap-testing-account/hub/jenkins/docs-cn-checker:v1.0.0
hub.pingcap.net/jenkins/network-multitool	wbitt/network-multitool

Files changed

• pipelines/pingcap/docs/latest/pod-merged_update_docs.yaml — both runner and net-tool containers
• pipelines/pingcap/docs/latest/pod-pull_verify.yaml — net-tool container

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/orgs/pingcap-qe/packages
  • Triggering command: /usr/bin/curl curl -s REDACTED grep -l ghcr.io\|us-docker.pkg.dev k/ci/ci/scripts/ops/nextgen/README.md rgo/bin/grep /home/REDACTED/worgrep /home/REDACTED/wor-l /home/REDACTED/wordocs-cn-checker\|docs.checker\|check-file-encoding\|markdownlint grep -l ghcr.io\|us-dock/home/REDACTED/work/ci/ci/tools/gethash/Dockerfile k/ci/ci/tools/ch/home/REDACTED/work/ci/ci/tools/deprecated/release-checker/checker/Dockerfile de/node/bin/grep/home/REDACTED/work/ci/ci/tools/deprecated/release-checker/checker/Dockerfile.tifl--noprofile /home/REDACTED/worbash /home/REDACTED/wor--norc /home/REDACTED/wor--noprofile grep (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

---

This section details on the original issue you should resolve

<issue_title>hub registry: migrate images for pingcap/docs</issue_title>
<issue_description>Replace hub.pingcap.net image pulls/pushes for pingcap/docs with a cloud-accessible registry.

Acceptance criteria:

• No hub.pingcap.net references in jobs/pipelines for pingcap/docs
• Image registry endpoints documented and validated
  </issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes hub registry: migrate images for pingcap/docs #4230

---

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[ti-chi-bot]

Hi @Copilot. Thanks for your PR.

I'm waiting for a PingCAP-QE member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

I understand the commands that are listed here.

Details

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 kubernetes-sigs/prow repository.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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Details

Needs approval from an approver in each of these files:

• pipelines/pingcap/docs/OWNERS

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