CI/CD Implementation

1. Summary:

Nephio Project uses combination of Prow with additional help of GitHub Actions as a CI/CD and GitHub management solution.

Prow is a Kubernetes based CI/CD, its main features:

• Job execution for testing, batch processing, artifact publishing

• GitHub events are used to trigger post-PR-merge (postsubmit) jobs and on-PR-update (presubmit) jobs

• Support for multiple execution platforms and source code review sites

• Pluggable GitHub bot automation that implements /foo style commands and enforces configured policies/processes

• GitHub merge automation with batch testing logic

• Front end for viewing jobs, merge queue status, dynamically generated help information

• Config-as-a-code with automagically applying changes.

• Automatic GitHub org/repo administration configured in source control.

• All benefits of running on Kubernetes - replication, load balancing, rolling updates, addons like Istio.

• JSON structured logs.

• Prometheus metrics.

What do we do with it:

• Code checking for syntax, common errors, security problems

• Licensing compliance scanning

• Artifacts building and delivery

• Testing environment provisioning

• Keeping GitHub policies applied

2. Diagram

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