Merge pull request #1324 from fluxcd/update-release-docs

Update release docs

docs/gitbook/dev/release-guide.md

@@ -4,21 +4,38 @@ This document describes how to release Flagger.
 
 ## Release
 
+### Flagger 
+
 To release a new Flagger version (e.g. `2.0.0`) follow these steps:
 
-* create a branch `git checkout -b prep-2.0.0`
+* create a branch `git checkout -b release-2.0.0`
 * set the version in code and manifests `TAG=2.0.0 make version-set`
 * commit changes and merge PR
-* checkout master `git checkout main && git pull`
-* tag master `make release`
+* checkout main `git checkout main && git pull`
+* tag main `make release`
+
+### Flagger load tester
+
+To release a new Flagger load tester version (e.g. `2.0.0`) follow these steps:
+
+* create a branch `git checkout -b release-ld-2.0.0`
+* set the version in code (`cmd/loadtester/main.go#VERSION`)
+* set the version in the Helm chart (`charts/loadtester/Chart.yaml` and `values.yaml`)
+* set the version in manifests (`kustomize/tester/deployment.yaml`)
+* commit changes and push the branch upstream
+* in GitHub UI, navigate to Actions and run the `push-ld` workflow selecting the release branch
+* after the workflow finishes, open the PR which will run the e2e tests using the new tester version
+* merge the PR if the tests pass
 
 ## CI
 
 After the tag has been pushed to GitHub, the CI release pipeline does the following:
 
 * creates a GitHub release
 * pushes the Flagger binary and change log to GitHub release
-* pushes the Flagger container image to Docker Hub
+* pushes the Flagger container image to GitHub Container Registry
+* pushed the Flagger install manifests to GitHub Container Registry
+* signs all OCI artifacts and release assets with Cosign and GitHub OIDC
 * pushes the Helm chart to github-pages branch
 * GitHub pages publishes the new chart version on the Helm repository
 
@@ -32,3 +49,6 @@ After a Flagger release, publish the docs with:
 * `git checkout docs`
 * `git rebase main`
 * `git push origin docs`
+
+Lastly open a PR with all the docs changes on [fluxcd/website](https://github.com/fluxcd/website) to 
+update [fluxcd.io/flagger](https://fluxcd.io/flagger/).