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cloud-provider-gcp

This repository holds the code for gcp-controller-manager as well as cloud-controller-manager

Publishing gcp-controller-manager image

This command will build and publish gcp-controller-manager gcr.io/k8s-image-staging/gcp-controller-manager:latest:

bazel run //cmd/gcp-controller-manager:publish

Environment variables IMAGE_REGISTRY, IMAGE_REPO and IMAGE_TAG can be used to override destination GCR repository and tag.

This command will build and publish example.com/my-repo/gcp-controller-manager:v1:

IMAGE_REGISTRY=example.com IMAGE_REPO=my-repo IMAGE_TAG=v1 bazel run //cmd/gcp-controller-manager:publish

Publishing cloud-controller-maanger image

This command will build and publish cloud-controller-manager gcr.io/k8s-image-staging/cloud-controller-manager:latest:

bazel run //cmd/cloud-controller-manager:publish

Environment variables IMAGE_REGISTRY, IMAGE_REPO and IMAGE_TAG can be used to override destination GCR repository and tag.

This command will build and publish example.com/my-repo/gcp-controller-manager:v1:

IMAGE_REGISTRY=example.com IMAGE_REPO=my-repo IMAGE_TAG=v1 bazel run //cmd/cloud-controller-manager:publish

Cross-compiling

Selecting the target platform is done with the --platforms option with bazel. This command builds release tarballs for Windows:

bazel build --platforms=@io_bazel_rules_go//go/toolchain:windows_amd64 //release:release-tars

This command explicitly targets Linux as the target platform:

bazel build --platforms=@io_bazel_rules_go//go/toolchain:linux_amd64 //release:release-tars

Dependency management

Dependencies are managed using Go modules (go mod subcommands).

Note that builds are done with Bazel and not the Go tool. Don't follow public Go module docs, instead use instructions in this readme.

Working within GOPATH

If you work within GOPATH, go mod will error out unless you do one of:

  • move repo outside of GOPATH (it should "just work")
  • set env var GO111MODULE=on

Add a new dependency

go get github.com/new/dependency && ./tools/update_vendor.sh

Update an existing dependency

go get -u github.com/existing/dependency && ./tools/update_vendor.sh

Update all dependencies

go get -u && ./tools/update_vendor.sh

Note that this most likely won't work due to cross-dependency issues or repos not implementing modules correctly.

Bazel

Bazel is required to build and release cloud-provider-gcp.

To install:

go get github.com/bazelbuild/bazelisk
alias bazel=bazelisk

To re-generate BUILD files:

tools/update_bazel.sh

Tagging for new cloud-controller-manager versions

To trigger a new image for cloud-controller-manager, you need to add a git tag. This needs to have the format ccm/vX.Y.Z. For example.

git tag -a ccm/v27.1.0 -m "CCM build for Kubernetes v1.27.1"

The major version X corresponds to the Kubernetes minor version. The minor version Y corresponds to the Kubernetes patch version and the patch version Z corresponds to the CCM patch version.

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