prow-job-artifact-search

name	Prow Job Artifact Search
description	Search, list, and fetch artifacts from Prow CI job runs stored in GCS using the gcloud CLI

Prow Job Artifact Search

This skill provides a reusable Python script for browsing, searching, and fetching artifacts from Prow CI job runs stored in the test-platform-results GCS bucket. It wraps gcloud storage commands so callers do not need to construct GCS URIs or manage the CLI directly.

When to Use This Skill

Use this skill when you need to:

• Browse the artifact directory tree of a Prow job run
• Search for specific files within a job's artifacts (e.g., interval files, node logs, journal logs)
• Fetch the contents of a specific artifact file for analysis
• Discover what artifacts are available before running a more targeted analysis skill

This skill is a building block used by other analysis workflows. Use it when you need ad-hoc artifact access that is not covered by a dedicated analysis skill.

Prerequisites

1. gcloud CLI Installation

   • Check if installed: which gcloud
   • If not installed, provide instructions for the user's platform
   • Installation guide: https://cloud.google.com/sdk/docs/install

2. gcloud Authentication (Optional)

   • The test-platform-results bucket is publicly accessible
   • No authentication is required for read access

3. Python 3 (3.6 or later)

   • Check: which python3

Script Location

plugins/ci/skills/prow-job-artifact-search/prow_job_artifact_search.py

Operations

list — List directory contents

List files and subdirectories at a given path within the job's artifact tree.

python3 plugins/ci/skills/prow-job-artifact-search/prow_job_artifact_search.py \
  <prow-url> list [subpath]

Arguments:

• prow-url (required): The Prow job URL
• subpath (optional): Subdirectory path relative to the job root. If omitted, lists the job root.

Examples:

# List the job root
python3 .../prow_job_artifact_search.py "https://prow.ci.openshift.org/view/gs/test-platform-results/logs/periodic-ci-.../1234567890" list

# List e2e test artifacts
python3 .../prow_job_artifact_search.py <url> list artifacts/e2e-test/openshift-e2e-test

# List gather-extra oc_cmds
python3 .../prow_job_artifact_search.py <url> list artifacts/e2e-test/gather-extra/artifacts/oc_cmds

Output:

{
  "success": true,
  "path": "gs://test-platform-results/logs/<job>/<id>/",
  "count": 5,
  "entries": [
    {
      "name": "artifacts/",
      "path": "artifacts",
      "type": "directory",
      "gcs_uri": "gs://test-platform-results/logs/<job>/<id>/artifacts/"
    },
    {
      "name": "build-log.txt",
      "path": "build-log.txt",
      "type": "file",
      "gcs_uri": "gs://test-platform-results/logs/<job>/<id>/build-log.txt"
    }
  ]
}

search — Search for files matching a glob pattern

Recursively search for files matching a glob pattern under a given path.

python3 plugins/ci/skills/prow-job-artifact-search/prow_job_artifact_search.py \
  <prow-url> search <pattern> [subpath]

Arguments:

• prow-url (required): The Prow job URL
• pattern (required): Glob pattern to match. Supports ** for recursive matching and * for wildcards.
• subpath (optional): Subdirectory to search within. If omitted, searches from the job root.

Examples:

# Find all interval JSON files
python3 .../prow_job_artifact_search.py <url> search "**/*intervals*.json"

# Find all e2e timeline files
python3 .../prow_job_artifact_search.py <url> search "**/e2e-timelines_spyglass_*.json"

# Find node-related oc_cmds output
python3 .../prow_job_artifact_search.py <url> search "**/nodes" artifacts

# Find journal logs for a specific node
python3 .../prow_job_artifact_search.py <url> search "**/*worker-c-7t6ng*" artifacts

# Find all junit files
python3 .../prow_job_artifact_search.py <url> search "**/junit*.xml"

# Find must-gather archives
python3 .../prow_job_artifact_search.py <url> search "**/must-gather*"

Output:

{
  "success": true,
  "pattern": "gs://test-platform-results/logs/<job>/<id>/**/*intervals*.json",
  "count": 3,
  "matches": [
    {
      "name": "e2e-timelines_spyglass_20260209-043512.json",
      "path": "artifacts/e2e-test/openshift-e2e-test/e2e-timelines_spyglass_20260209-043512.json",
      "type": "file",
      "gcs_uri": "gs://test-platform-results/logs/<job>/<id>/artifacts/..."
    }
  ]
}

fetch — Fetch a specific file's contents

Download and return the contents of a specific file from the job's artifacts.

python3 plugins/ci/skills/prow-job-artifact-search/prow_job_artifact_search.py \
  <prow-url> fetch <filepath> [--max-bytes N]

Arguments:

• prow-url (required): The Prow job URL
• filepath (required): Path to the file relative to the job root
• --max-bytes (optional): Maximum bytes to read (default: 524288 = 512KB). Files larger than this are truncated.

Examples:

# Fetch the build log
python3 .../prow_job_artifact_search.py <url> fetch build-log.txt

# Fetch a specific oc_cmds output
python3 .../prow_job_artifact_search.py <url> fetch artifacts/e2e-test/gather-extra/artifacts/oc_cmds/nodes

# Fetch a large file with higher limit
python3 .../prow_job_artifact_search.py <url> fetch artifacts/e2e-test/openshift-e2e-test/build-log.txt --max-bytes 2097152

Output:

{
  "success": true,
  "path": "gs://test-platform-results/logs/<job>/<id>/build-log.txt",
  "size_bytes": 45230,
  "truncated": false,
  "max_bytes": 524288,
  "content": "... file contents ..."
}

Common Artifact Paths

These are common artifact paths within a Prow job. The {target} is the CI workflow step name (e.g., e2e-gcp-ovn-rt-rhcos10-techpreview).

Path	Description
build-log.txt	Top-level build log
artifacts/{target}/	All artifacts for the test step
artifacts/{target}/openshift-e2e-test/	E2E test output (build-log, junit, timelines)
artifacts/{target}/openshift-e2e-test/build-log.txt	E2E test console log
artifacts/{target}/openshift-e2e-test/artifacts/e2e-timelines_spyglass_*.json	Interval/timeline data
artifacts/{target}/gather-extra/artifacts/oc_cmds/	Cluster state snapshots (nodes, pods, events, etc.)
artifacts/{target}/gather-extra/artifacts/pods/	Pod logs from all namespaces
artifacts/{target}/gather-extra/artifacts/audit_logs/	API server audit logs
artifacts/{target}/gather-extra/artifacts/journal_logs/	Node journal logs (systemd)
artifacts/{target}/gather-must-gather/artifacts/	Must-gather archives
prowjob.json	Job metadata (payload tag, timing, etc.)

URL Formats

The script accepts both Prow UI URLs and gcsweb URLs:

• https://prow.ci.openshift.org/view/gs/test-platform-results/logs/<job>/<build_id>
• https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/test-platform-results/logs/<job>/<build_id>

Error Handling

No matches found

When a search returns no results, the script returns success with an empty matches array:

{
  "success": true,
  "pattern": "...",
  "count": 0,
  "matches": []
}

gcloud not installed

{
  "success": false,
  "error": "gcloud CLI is not installed. Install from: https://cloud.google.com/sdk/docs/install"
}

Invalid path or 404

{
  "success": false,
  "error": "gcloud storage ls failed: ...",
  "path": "gs://..."
}

Notes

• The test-platform-results bucket is publicly accessible. No authentication is required.
• The --no-user-output-enabled flag is used on gcloud storage cp to suppress progress bars.
• For large files, use --max-bytes to limit download size. The default is 512KB.
• The search command uses gcloud storage ls with glob patterns, which supports ** for recursive matching.
• All output is JSON on stdout. Errors also produce a JSON object with "success": false.

See Also

• Related Skill: prow-job-analyze-test-failure — Analyzes test failures using build logs and timelines
• Related Skill: prow-job-analyze-install-failure — Analyzes install failures using installer logs
• Related Skill: prow-job-analyze-resource — Analyzes resource lifecycles using audit logs
• Related Skill: prow-job-extract-must-gather — Extracts must-gather archives
• Related Skill: fetch-prowjob-json — Fetches prowjob.json metadata