find the corresponding docker image from git tag

ops/travis/deploy/production.sh

@@ -5,7 +5,11 @@ IFS=$'\n\t'
 
 # pull the tagged staging build
 export DOCKER_IMAGE_PREFIX=${DOCKER_REGISTRY}/
-export DOCKER_IMAGE_TAG="${TRAVIS_TAG}"
+# find the docker image tag
+export TAG="${TRAVIS_TAG}"
+export ORG=${DOCKER_REGISTRY}
+export REPO="webserver"
+export DOCKER_IMAGE_TAG=$(exec ops/travis/helpers/find_staging_version.sh)
 make pull
 
 # show current images on system

ops/travis/helpers/find_staging_version.sh

@@ -1,29 +1,29 @@
 #!/bin/bash
 # Usage: find_staging_version.sh
+#
 # returns the full image tag corresponding to the git tag name that shall be used
 
 # http://redsymbol.net/articles/unofficial-bash-strict-mode/
 set -euo pipefail
 IFS=$'\n\t'
 
-GIT_COMMIT_SHA=$(git show-ref -s ${TRAVIS_TAG})
-ORG=${DOCKER_REGISTRY}
-REPO="webserver"
+echo "Retrieving SHA for tag ${TAG}"
+GIT_COMMIT_SHA=$(git show-ref -s ${TAG})
+echo "Found SHA for tag ${GIT_COMMIT_SHA}"
 
 # get token
 echo "Retrieving token ..."
 TOKEN=$(curl -s -H "Content-Type: application/json" -X POST -d '{"username": "'${DOCKER_USERNAME}'", "password": "'${DOCKER_PASSWORD}'"}' https://hub.docker.com/v2/users/login/ | jq -r .token)
 
-# get list of repositories
-echo "Retrieving repository list ..."
-REPO_LIST=$(curl -s -H "Authorization: JWT ${TOKEN}" https://hub.docker.com/v2/repositories/${ORG}/?page_size=100 | jq -r '.results|.[]|.name')
-
 # output images & tags
 echo
 echo "Images and tags for organization: ${ORG}"
-echo
+echo "in repo ${REPO}"
 IMAGE_TAGS=$(curl -s -H "Authorization: JWT ${TOKEN}" https://hub.docker.com/v2/repositories/${ORG}/${REPO}/tags/?page_size=100 | jq -r '.results|.[]|.name')
 for j in ${IMAGE_TAGS}
 do
-echo "  - ${j}"
-done
+if [[ ${j} =~ ${GIT_COMMIT_SHA} ]]; then
+echo "${j}"
+exit 0
+fi
+done