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This repository contains tools and configuration files for the testing andautomation needs of the Kubernetes project.

Ourarchitecture diagram provides an (updated#13063)overview of how the different tools and services interact.

Kubernetes uses aprow instance atprow.k8s.io to handle CI andautomation for the entire project. Everyone can participate in aself-service PR-based workflow, where changes are automatically deployedafter they have been reviewed. All job configs are located inconfig/jobs

• Add or update job configs
• Delete job configs
• Test job configs locally
• Trigger jobs on PRs using bot commands

• Testgrid shows historical test results over time (testgrid)
• Triage shows clusters of similar test failures across all jobs (triage)

• Deck shows what jobs are running or have recently run in prow (prow/cmd/deck)
• Gubernator's PR Dashboard shows which PRs need your review (gubernator)
• PR Status shows what needs to be done to get PRs matching a GitHub Query to merge (prow/cmd/tide)
• Tide History shows what actions tide has taken over time to trigger tests and merge PRs (prow/cmd/tide)
• Tide Status shows what PRs are in tide pools to be tested and merged (prow/cmd/tide)

• boskos manages pools of resources; our CI leases GCP projects from these pools
• experiment is a catchall directory for one-shot tools or scripts
• gcsweb is a UI we use to display test artifacts stored in public GCS buckets
• ghproxy is a GitHub-aware reverse proxy cache to help keep our GitHub API token usage within rate limits
• gopherage is a tool for manipulating Go coverage files
• greenhouse is a shared bazel cache we use to ensure faster build and test presubmit jobs
• label_sync creates, updates and migrates GitHub labels across orgs and repos based onlabels.yaml file
• kettle extracts test results from GCS and puts them into bigquery
• kubetest is how our CI creates and e2e tests kubernetes clusters
• maintenance/migratestatus is used to migrate or retire GitHub status contexts on PRs across orgs and repos
• metrics runs queries against bigquery to generate metrics based on test results
• robots/commenter is used by some of our jobs to comment on GitHub issues

Please seeCONTRIBUTING.MD