docker ARG

[drewgilliam]

New ARG for various dockers in the docker/vsi_common directory:

• VSI_RECIPE_REPO allowing redirect of pre-built docker recipes. Set to
  • *_RECIPE_REPO if defined (where * is the service)
  • then VSI_RECIPE_REPO if defined
  • otherwise vsiri/recipe
• GOSU_SKIP_GPG to skip GPG checks in the gosu recipe. Set to
  • *_SKIP_GPG if defined (where * is the service)
  • then GOSU_SKIP_GPG if defined
  • otherwise 0
• TINI_SKIP_GPG to skip GPG checks in the tini recipe. Set to
  • *_SKIP_GPG if defined (where * is the service)
  • then TINI_SKIP_GPG if defined
  • otherwise 0