Merge pull request #578 from kurator-bot/cherry-pick-577-to-release-0.6

[release-0.6] update doc version to 0.6.0

Merge pull request #573 from kurator-bot/cherry-pick-572-to-release-0.6

[release-0.6] fix remove ‘v' in image version error

Merge pull request #559 from Xieql/pipeline-controller

pipeline: init pipeline controller

Merge pull request #431 from kurator-bot/cherry-pick-425-to-release-0.5

[release-0.5] workflows: add release image workflows

Merge pull request #423 from hzxuzhonghu/update-version

update kurator version

Merge pull request #347 from kurator-bot/cherry-pick-346-to-release-0.4

[release-0.4] update version to v0.4.0

Merge pull request #347 from kurator-bot/cherry-pick-346-to-release-0.4

[release-0.4] update version to v0.4.0

Merge pull request #257 from kurator-bot/cherry-pick-255-to-release-0.3

[release-0.3] gen api docs for fleet

Merge pull request #192 from zirain/precheck-1

add provide precheck and fail fast

Merge pull request #142 from hzxuzhonghu/release-0.2

[release-0.2] fix make chart