Migrating to Gateway API: Ingress2Gateway 1.0 Unleashed
Ingress2Gateway exists to simplify the often complex migration from Ingress to Gateway API. As Kubernetes evolves, the need for a more modular and extensible API becomes clear. Ingress2Gateway acts as an assistant, helping teams confidently navigate this transition while addressing the challenges that arise from implementation-specific annotations and configurations.
How does it work? Ingress2Gateway translates Ingress resources and their associated annotations into the Gateway API format. It supports over 30 common annotations, ensuring that your configurations remain intact. The tool also warns you about any untranslatable configurations and offers suggestions for adjustments. To guarantee that the generated Gateway API behaves equivalently to your original Ingress-NGINX setup, it runs integration tests, giving you peace of mind during the migration process.
In production, you’ll want to install Ingress2Gateway easily using Go or Homebrew. For example, you can run go install github.com/kubernetes-sigs/ingress2gateway@v1.0.0 or brew install ingress2gateway. When you're ready to translate your manifests, use commands like ingress2gateway print --input-file my-manifest.yaml --providers=ingress-nginx > gwapi.yaml. Keep in mind that you can specify different emitters like agentgateway, envoy-gateway, or kgateway to customize your output. This flexibility is crucial for aligning with your specific architecture and needs.
Key takeaways
- →Install Ingress2Gateway using 'go install' or 'brew install'.
- →Translate Ingress resources with 'ingress2gateway print --input-file my-manifest.yaml'.
- →Utilize integration tests to verify behavioral equivalence with Ingress-NGINX.
- →Specify emitters for tailored output using the '--emitter' flag.
- →Support over 30 common annotations to ease the migration process.
Why it matters
Migrating to Gateway API can significantly enhance your Kubernetes networking capabilities, providing better modularity and extensibility. Ingress2Gateway streamlines this transition, reducing downtime and configuration errors.
Code examples
go install github.com/kubernetes-sigs/ingress2gateway@v1.0.0brew install ingress2gatewayingress2gateway print --input-file my-manifest.yaml,my-other-manifest.yaml --providers=ingress-nginx > gwapi.yamlWhen NOT to use this
The official docs don't call out specific anti-patterns here. Use your judgment based on your scale and requirements.
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