Add support to add labels and annotations to build pod

[wanjunlei]

Signed-off-by: wanjunlei wanjunlei@kubesphere.io

Changes

This pr adds two fields labels and annotations to the Build and BuildRun CRD, the controller will add the labels and annotations to the taskrun, and eventually be added to the build pod.

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• Includes tests if functionality changed/was added
• Includes docs if changes are user-facing
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Release Notes

Add support to add labels and annotations to build pod

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[binnn6]

Maybe we should just label build and buildrun, and let pod inherit labels from build and buildrun as #625 #1069

[SaschaSchwarze0]

Thanks for engaging @wanjunlei

In Shipwright, we often distinguish two personas: build strategy authors and build users. Build strategy authors define which steps need to be performed to reach a certain behavior. Pod annotations often cause a behavior, for example kubernetes.io/ingress-bandwidth (network traffic shaping). Build users should not necessarily gain control over such behaviors.

Because of this, we already have the capability to propage annotations from build strategies to taskruns, but not from builds or buildruns. See Propagating annotations from the build strategy to the pod.

Similarly, there is effort in progress related to labels, and here to also include a propagation for Build users.

We invite you to join our community meeting, https://github.com/shipwright-io/community#how-can-i-get-involved.

In general, every API change requires an enhancement proposal, which we call SHIPs.

/hold