add exposed ports and use bridge network mode
Merge branch 'fix' into 'master'

Fix network

NetworkMode必须有, 用"bridge"

ExposedPorts必须有, 除非Dockerfile里明确写了"EXPOSE xxx", 但是我们的都不会写

另外用vim retab了下... 那么多的tab不能忍啊...
change owner
Merge branch 'fix' into 'master'

owner of config.yaml should be appuser

config.yaml的所有者应该是app名字的user.