Buildkite Logs

BUILD_NUMBER=<number>
curl -sf -H "$BK_AUTH" \
  "$BASE/organizations/$ORG/pipelines/$PIPELINE/builds/$BUILD_NUMBER" \
  | jq '{number,state,branch,commit,created_at,web_url,jobs:[.jobs[]|{id,name,state,exit_status,web_url}]}'

To get a build number from a Buildkite URL like https://buildkite.com/elastic/kibana-pull-request/builds/414685, extract 414685.

Fetch latest build for a PR

PR=<number>
curl -sf -H "$BK_AUTH" \
  "$BASE/organizations/$ORG/pipelines/$PIPELINE/builds?pull_request_id=$PR&per_page=1" \
  | jq '.[0] | {number,state,branch,web_url,jobs:[.jobs[]|{id,name,state,exit_status}]}'

Fetch job log

Once you have a build number and job ID:

BUILD_NUMBER=<number>
JOB_ID=<uuid>
curl -sf -H "$BK_AUTH" \
  "$BASE/organizations/$ORG/pipelines/$PIPELINE/builds/$BUILD_NUMBER/jobs/$JOB_ID/log" \
  | jq -r '.content'

Logs can be large. Pipe through tail -n 200 or search with grep/rg for relevant sections:

... | jq -r '.content' | grep -A 5 -i "error\|fail\|FAIL\|exception"

Workflow: diagnose a failing build

1. Get build overview (fetch build by number or PR, see above).
2. Identify failed jobs: filter jobs where state == "failed".
3. Fetch log for each failed job and search for the first error/failure.
4. Summarise: report job name, exit code, and the key error lines.

For large logs, focus on the last 200–500 lines plus any lines matching error, FAIL, AssertionError, TypeError, or ✖.

Workflow: understand job definition for PR build

1. Analyse .buildkite/pipelines/pull_request/base.yml
2. Analyse any relevant yml files in the folder

List and download artifacts

BUILD_NUMBER=<number>
# List artifacts for the build
curl -sf -H "$BK_AUTH" \
  "$BASE/organizations/$ORG/pipelines/$PIPELINE/builds/$BUILD_NUMBER/artifacts" \
  | jq '.[] | {id,filename,file_size,download_url}'

# Download a specific artifact
ARTIFACT_ID=<uuid>
curl -sL -H "$BK_AUTH" \
  "$BASE/organizations/$ORG/pipelines/$PIPELINE/builds/$BUILD_NUMBER/artifacts/$ARTIFACT_ID/download" \
  -o <filename>

Artifacts for a single job:

JOB_ID=<uuid>
curl -sf -H "$BK_AUTH" \
  "$BASE/organizations/$ORG/pipelines/$PIPELINE/builds/$BUILD_NUMBER/jobs/$JOB_ID/artifacts" \
  | jq '.[] | {id,filename,file_size,download_url}'

Other pipelines

Kibana has multiple pipelines. Common slugs:

Substitute the PIPELINE variable as needed.