docker-build.sh

#!/bin/bash

set -o errexit
set -xv

#
# This script checks if image already exist in registry, if not it will build and tag image
#

APP_NAME=$(cut -d "/" -f 2 <<< $K8S_APP_REPO)
COMMIT_SHA_SHORT=$(git describe --always --tags 2>/dev/null)
DOCKER_IMAGE_PATH="gcr.io/${GCE_PROJECT}/${APP_NAME}"
DOCKER_IMAGE_TAG=$(gcloud container images list-tags ${DOCKER_IMAGE_PATH} --filter="tags=${COMMIT_SHA_SHORT}" --format=json)

DOCKER_ARGS=''
prefix='TRAVIS_BUILDARG_'
for varname in $(env | grep "^${prefix}"); do
  varname=${varname/#$prefix}
  DOCKER_ARGS="${DOCKER_ARGS} --build-arg $varname "
done

secret_prefix='TRAVIS_BUILDSECRET_'
for varname in $(env | grep "^${secret_prefix}" | cut -d'=' -f 1); do
  envname=$varname
  varname=${varname/#$secret_prefix}
  DOCKER_ARGS="${DOCKER_ARGS} --secret id=$varname,env=$envname "
done

echo "Adding custom build arguments: ${DOCKER_ARGS}"

if [[ "${DOCKER_IMAGE_TAG}" == "[]" ]]; then
  echo "Tag doesn't exist in gcr.io. Building image..."
  gcloud docker -- pull $DOCKER_IMAGE_PATH:latest || true
  if [[ "${APP_NAME}" == "travis-web" ]]; then
    docker build . --secret id=GITHUB_PERSONAL_TOKEN,env=GITHUB_PERSONAL_TOKEN --build-arg bundle_gems__contribsys__com --cache-from $DOCKER_IMAGE_PATH:latest -t $DOCKER_IMAGE_PATH:$COMMIT_SHA_SHORT $DOCKER_ARGS
    chmod +x ${TRAVIS_BUILD_DIR}/aida-deploy.sh && ${TRAVIS_BUILD_DIR}/aida-deploy.sh
  else
    docker build . --build-arg bundle_gems__contribsys__com --cache-from $DOCKER_IMAGE_PATH:latest -t $DOCKER_IMAGE_PATH:$COMMIT_SHA_SHORT $DOCKER_ARGS
  fi
  docker tag $DOCKER_IMAGE_PATH:$COMMIT_SHA_SHORT $DOCKER_IMAGE_PATH:latest
  gcloud docker -- push $DOCKER_IMAGE_PATH:$COMMIT_SHA_SHORT
  gcloud docker -- push $DOCKER_IMAGE_PATH:latest
  echo "Wait a little bit for the indexing"
  sleep 60
else
  echo "Image already exist in gcr.io"
  exit 0
fi