Dockerfiles refactoring

[sah2ed]

Requirements

The Dockerfiles should be easy to maintain. They need to be reorganized so that build-deploy cycles are faster than they are now.

Tasks

1. Refactor the Dockerfiles:

• rename docker/tc-platform/ to docker/tc-website/;
• move from run/Dockerfile to base/Dockerfile:
  • all download/install commands like yum and wget for apache, mod_ssl and mod_jk;
  • the self-signed SSL certificate generation step;
    • use the correct domain (local.tc.cloud.topcoder.com) in the SSL certificate;
• in run/Dockerfile, remove the cp of static files to Apache's DocumentRoot;
  • instead, see this bitnami example of using a mounted volume for Apache's DocumentRoot;
  • that change should fix this error when the docker image is run currently:
    • cp: cannot stat `/root/tc-platform/tc-website-static/*': No such file or directory.

2. Merge the docker image changes to the build files back into the original git repo:

• merge changes to build_tc.xml into build_tc.xml;
• merge changes to build_distui.xml into build_distui.xml;
• update the build/Dockerfile accordingly.