Update image-builder ENVs

[thejsj]

What this PR does

• Add ENV and volume mount for host config

Dependencies

• [x] https://github.com/CodeNow/image-builder/pull/66

Tests

• [x] Test image builder
• [x] Test image builder with private registries in host

Integration Test

Please follow the guidelines presented in the How to Test an API PR article when setting-up and performing tests.

• [x] Integration Tested @ commitsh by snoop on gamma

[thejsj]

It works!

[thejsj]

Snoop:

$ npm start -- --url https://api.runnable-test-main-1.info --user-content-domain runnable-test-navi-1.info --auth-token bde8554dcf871822f7e821074d4bfd8e6aa46f2c --timeout 400000

> snoop-a-loop@1.0.0 start /Users/hiphipjorge/runnable/snoop-a-loop
> ./node_modules/mocha/bin/mocha -t 10000 -b index.js --reporter progress "--url" "https://api.runnable-test-main-1.info" "--user-content-domain" "runnable-test-navi-1.info" "--auth-token" "bde8554dcf871822f7e821074d4bfd8e6aa46f2c" "--timeout" "400000"

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  80 passing (3m)
  33 pending

Deployed API with the following flags:

  -e DOCKER_IMAGE_BUILDER_HOST_CONFIG_PATH=/root/.docker/config.json
  -e DOCKER_IMAGE_BUILDER_VERSION=load-docker-login-config