Support context path from index file when pushing

[shizhMSFT]

When pushing charts to the remote server, the plugin automatically sets the context path from the cached repo index file. If pushing to a URL not a repo or the cache does not exist, the plugin tries to get the index file directly from the server.

Here is an example server generated index file with context path located at http://example.com/some/path/index.yaml with repo url http://example.com/some/path.

apiVersion: v1
serverInfo:
  contextPath: /some/path
entries: {}
generated: "2018-08-08T08:00:00Z"

With this index file, the plugin will send requests to http://example.com/some/path/api/charts for pushing charts instead of http://example.com/api/some/path/charts.

[jdolitsky]

@shizhMSFT this is great! Thanks

Do you mind if we nest this under serverInfo namespace? I imagine there may be more data we will want to know about the server in the future:

apiVersion: v1
serverInfo:
  contextPath: /some/path
entries: {}
generated: "2018-08-08T08:00:00Z"

[yuwaMSFT2]

This can be before reading body

[shizhMSFT]

Let's follow the original design. The function call to getChartmuseumError(b, resp.StatusCode) requires reading the response body.

[yuwaMSFT2]

this is the dep package so you should not change it?

[shizhMSFT]

This is pkg not vendor. Therefore, it is not a dep package.

[yuwaMSFT2]

ah...ok :)

[shizhMSFT]

@jdolitsky Nested contextPath under serverInfo namespace.

[yuwaMSFT2]

LGTM. @jdolitsky can you help to review? Thanks!

[jdolitsky]

Works great! merging

[jdolitsky]

New version of plugin has been released with this feature (v0.7.0)
@shizhMSFT @yuwaMSFT2 @sajayantony