* support local file storage type for local volume mount path, refer: https://github.com/kubeflow/pipelines/issues/4208
* add todo comment to support directory and filePath include wildcards '*', detail refer: https://github.com/kubeflow/pipelines/issues/4208
* revert old code indent
* run 'npm run format' to format code
* support tensorboard viewer and other visualize Results using volume mount path, modify 'file' schema to 'volume':
1. source schema: volume://volume-name/relative/path/from/volume/xxx.csv
2. for tensorboard(also support Series1:volume://volume-name/path_to_model_dir_1,Series2:volume://volume-name/path_to_model_dir_2):
* check volume-name was specified in podTemplateSpec( which was inject by VIEWER_TENSORBOARD_POD_TEMPLATE_SPEC_PATH env)
* check /relative/path/from/volume/xxx file path was prefix-mounted in podTemplateSpec
3. for others:
* check volume-name was specified at ml-pipeline-ui pod
* check /relative/path/from/volume/xxx.csv file path exist
* fix test and add more tests
* change error message not found to not exist.
* fix tensorboard create test
* combining volume mount path and key as artifacts path
* extra complex code to a function and add more test
* use ml-pipeline-ui container name to find server container instead of use containers[0]
* fix review suggestion: https://github.com/kubeflow/pipelines/pull/4236
* format code
* extract how to find file path on a pod volume to a common function, and optimize error message
* fix k8s-helper.test error
* add more documentation and fix mistake: volumeMountPath to filePathInVolume
* fix test error
* Update k8s-helper.test.ts
* format error message
* document volume support for tensorboard viewer and other visualize results
* add beta status
* change beta status to alpha status
Co-authored-by: Yuan (Bob) Gong <gongyuan94@gmail.com>
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