Add linkerd auto injection

[tlemarchand]

Description

This PR add annotations in namespaces.yml to enable linkerd auto inject, if linkerd is available. It does not change anything if there is no linkerd in the cluster.

Motivation and Context

• I have raised an issue to propose this change (596)

How Has This Been Tested?

Tested it in our linkerd-enabled AKS cluster. Linkerd sidecars are auto injected and work as intended.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I've read the CONTRIBUTION guide
• I have signed-off my commits with git commit -s
• I have added tests to cover my changes.
• All new and existing tests passed.

I'm not sure about the documentation, I can add an explanation if needed ?

[derek]

Thank you for your contribution. I've just checked and your commit doesn't appear to be signed-off. That's something we need before your Pull Request can be merged. Please see our contributing guide.
Tip: if you only have one commit so far then run: git commit --amend --signoff and then git push --force.

[alexellis]

Hi @tlemarchand sadly we cannot accept anonymous sign-offs for PRs. Please use your real email and remove the no-reply GitHub address.

git config user.email "real@email.com"
git commit -s --amend
git push origin master --force

[alexellis]

I'll give you a couple of days to fix this before closing. Let us know if you need any help using git.

[alexellis]

Approved subject to the sign-off being fixed.

[alexellis]

Approved for merge

[alexellis]

Thanks for signing-off. I've merged the PR which means it will be available in master now.

Could you submit a PR to the openfaas-linkerd2 workshop for this new change and test that it works as expected?

https://github.com/openfaas-incubator/openfaas-linkerd2

[tlemarchand]

Thanks for merging.

I'll test and write a PR for the workshop, it will be mostly lines removed ;)