Add controller-gen and kustomize to the SDK base image

[SteveMattar]

Feature Request

Describe the problem you need a feature to resolve.

My project is using the new Kubebuilder-style layout
I need a base image containing the following tools in order to build my operator bundle

• controller-gen
• kustomize
• operator-sdk v1+
• envtest

Describe the solution you'd like.

Include controller-gen and kustomize to your SDK base image
The original PR is #3902

/language go

[joelanford]

We should probably include the envtest binaries in the base image as well.

[aemperador]

it looks like the PR for this was merged. should this issue be closed?

PR ref: #3902

[SteveMattar]

it looks like the PR for this was merged. should this issue be closed?

PR ref: #3902

@aemperador this PR does not include all the tools
this docker base image contains operator-sdk only but we also need
controller-gen, kustomize and envtest

[aemperador]

ok @SteveMattar thanks for the update. I can take this on

[aemperador]

I've created a PR for adding kustomize first as a base image that includes the operator-sdk and kustomize: #4130

controller-gen is not included in this one

[SteveMattar]

@aemperador Thanks for your work! Is there any reason why controller-gen is not part of this PR?