implement Trait patch back before workload emitted

[ifree613]

Ref to proposal https://github.com/crossplane/oam-kubernetes-runtime/blob/master/design/trait-separated-from-underlying-workload-should-patch-back.md

Signed-off-by: chengji.lsb [email protected]

[hongchaodeng]

Any progress on this PR? If @ifree613 doesn't have time, we can help continue to finish it. cc @wonderflow

[wonderflow]

pending on this issue https://github.com/crossplane/oam-kubernetes-runtime/issues/157

[ryanzhang-oss]

Just FYI, the strategicMergepatch is in a library at "k8s.io/apimachinery/pkg/util/strategicpatch"

[antiClocke]

//oam-k8s-runtime will periodically check the status of patch trait. If the phase of status become Ready, the oam-k8s-runtime will gather the patch data from the ConfigMap. After all patch traits gathered, oam-k8s-runtime will patch all the information into workload

i have a little problem..where is this logic，periodically check and patch @wonderflow @ifree613

[antiClocke]

when and who make the Trait from unReady to Ready？have some opinion? @wonderflow @ifee613

[antiClocke]

//All patch traits MUST be created or updated before workload emit, and oam-k8s-runtime will be pending until all patch traits are ready. i am a fish,a questioin where is the pending logic, i d not fount

[wonderflow]

@antiClocke Let's talk deep in wechat or Dingtalk, my ID is wonderflow

[antiClocke]

@antiClocke Let's talk deep in wechat or Dingtalk, my ID is wonderflow

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