Move all Dockerfile samples to non-root user

Expected Behaviour

As an OpenFaaS end-user, I want to run all samples on my OpenFaaS cluster, even with the new non-root feature enabled.

Current Behaviour

$ minishift status
Minishift:  Running
Profile:    minishift
OpenShift:  Stopped
DiskUsage:  ERR of

perhaps this is related to the error state from the OpenShift isRunning check

The problem faced currently?

Currently space cloud doesn't allow the end-user to set content type while uploading objects to file store. This works in many cases. But when you are using file store for rendering media content in your app. The browser might render files depending upon the content type set in http response. For media content, if content type is not known by the browser, the Brow

1、当没有API文档时的空数据提示
2、当没有搜索到API文档时的空数据提示