docker_populate_images.sh

#!/bin/bash
# Excerpts from https://enterprise.travis-ci.com/install/worker
#

populate_images() {
  DOCKER_CMD="docker -H tcp://0.0.0.0:2375"

  # pick the languages you are interested in
  langs='android erlang go haskell jvm node-js perl php python ruby'
  declare -a lang_mappings=('clojure:jvm' 'scala:jvm' 'groovy:jvm' 'java:jvm' 'elixir:erlang' 'node_js:node-js')
  tag=latest
  for lang in $langs; do
    $DOCKER_CMD pull quay.io/travisci/travis-$lang:$tag
    $DOCKER_CMD tag -f quay.io/travisci/travis-$lang:$tag travis:$lang
  done

  # tag travis:ruby as travis:default
  $DOCKER_CMD tag -f travis:ruby travis:default

  for lang_map in "${lang_mappings[@]}"; do
    map=$(echo $lang_map|cut -d':' -f 1)
    lang=$(echo $lang_map|cut -d':' -f 2)

    $DOCKER_CMD tag -f quay.io/travisci/travis-$lang:$tag travis:$map
  done
}

populate_images