Add npm and ruby gem support

Adding a proxy to Nexus

Description of new proxy

Add Nexus proxy for npm (https://registry.npmjs.org)

Add Nexus proxy for ruby gems (https://rubygems.org)

Acceptance Criteria (AC)

npm:

• Create a new --build-arg for npm called NPM_CONFIG_REGISTRY="http://nexus-repository-manager.nexus-repository-manager.svc.cluster.local:8081/repository/npmproxy/" to be available similar to pypi.
• Add ARG NPM_CONFIG_REGISTRY into the build-arg.txt file.
• Create a Nexus npm (proxy) repo called npmproxy that points to https://registry.npmjs.org

Ruby gems:

• Ruby gems are a slightly larger pain. We will need to inject a partial gemrc file with the overriding remote source pointing to our Nexus via the mount.conf like we do for the ubi repos.
• Then we need to add the --build-arg called GEMRC="/tmp/ruby/.ironbank-gemrc" that points to the location of where we mount it.
• Add ARG GEMRC into the build-arg.txt file.
• Create a Nexus rubygems (proxy) repo called rubygemproxy that points to https://rubygems.org

The other important stuff:

• Use of new proxy has been documented in DCCSCR repo, along with best practices
• New proxy name has been added to ACCESS_LOG_REPOS CI variable

• Access log parsing updated to accommodate new proxy

Definition of Done (DoD)

• Proxy tested in staging environment