From 7f2cd575cb7a240267c0bf7b0ec86412b7fc1738 Mon Sep 17 00:00:00 2001
From: roschaefer <git@roschaefer.de>
Date: Wed, 11 Sep 2019 02:34:35 +0200
Subject: [PATCH] Push all docker images at VERSION to dockerhub

Inspired by the tagging of e.g. `node` on dockerhub:
https://hub.docker.com/_/node/?tab=description

I would like to push the current version of all our images to dockerhub.
This is a first step to push to production later on.

If sb. increments the VERSION file, this is considered a release.
---
 VERSION                |  1 +
 docker-compose.yml     |  6 ++++++
 scripts/docker_push.sh | 40 ++++++++++++++++++++++++++++++----------
 3 files changed, 37 insertions(+), 10 deletions(-)
 create mode 100644 VERSION

diff --git a/VERSION b/VERSION
new file mode 100644
index 000000000..6e8bf73aa
--- /dev/null
+++ b/VERSION
@@ -0,0 +1 @@
+0.1.0
diff --git a/docker-compose.yml b/docker-compose.yml
index 37e8eb94d..587ec718f 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -6,6 +6,8 @@ services:
     build:
       context: webapp
       target: production
+      args:
+        - "BUILD_COMMIT=${TRAVIS_COMMIT}"
     ports:
       - 3000:3000
     networks:
@@ -23,6 +25,8 @@ services:
     build:
       context: backend
       target: production
+      args:
+        - "BUILD_COMMIT=${TRAVIS_COMMIT}"
     networks:
       - hc-network
     depends_on:
@@ -45,6 +49,8 @@ services:
     image: humanconnection/neo4j:latest
     build:
       context: neo4j
+      args:
+        - "BUILD_COMMIT=${TRAVIS_COMMIT}"
     networks:
       - hc-network
     environment:
diff --git a/scripts/docker_push.sh b/scripts/docker_push.sh
index 1677b0d3c..475ad9719 100755
--- a/scripts/docker_push.sh
+++ b/scripts/docker_push.sh
@@ -1,12 +1,32 @@
 #!/usr/bin/env bash
+ROOT_DIR=$(dirname "$0")
+DOCKER_CLI_EXPERIMENTAL=enabled
+# BUILD_COMMIT=${TRAVIS_COMMIT:-$(git rev-parse HEAD)}
+
+IFS='.' read -r major minor patch < $ROOT_DIR/../VERSION
+apps=(nitro-web nitro-backend neo4j maintenance-worker maintenance)
+tags=(latest $major $major.$minor $major.$minor.$patch)
+
+# These three docker images have already been built by now:
+# docker build --build-arg BUILD_COMMIT=$BUILD_COMMIT --target production -t humanconnection/nitro-backend:latest $ROOT_DIR/backend
+# docker build --build-arg BUILD_COMMIT=$BUILD_COMMIT --target production -t humanconnection/nitro-web:latest $ROOT_DIR/webapp
+# docker build --build-arg BUILD_COMMIT=$BUILD_COMMIT -t humanconnection/neo4j:latest $ROOT_DIR/neo4j
+docker build -t humanconnection/maintenance-worker:latest $ROOT_DIR/deployment/legacy-migration/maintenance-worker
+docker build -t humanconnection/maintenance:latest $ROOT_DIR/webapp/ -f $ROOT_DIR/webapp/Dockerfile.maintenance
+
 echo "$DOCKER_PASSWORD" | docker login -u "$DOCKER_USERNAME" --password-stdin
-docker build --build-arg BUILD_COMMIT=$TRAVIS_COMMIT --target production -t humanconnection/nitro-backend:latest $TRAVIS_BUILD_DIR/backend
-docker build --build-arg BUILD_COMMIT=$TRAVIS_COMMIT --target production -t humanconnection/nitro-web:latest $TRAVIS_BUILD_DIR/webapp
-docker build --build-arg BUILD_COMMIT=$TRAVIS_COMMIT -t humanconnection/neo4j:latest $TRAVIS_BUILD_DIR/neo4j
-docker build -t humanconnection/maintenance-worker:latest $TRAVIS_BUILD_DIR/deployment/legacy-migration/maintenance-worker
-docker build -t humanconnection/maintenance:latest $TRAVIS_BUILD_DIR/webapp/ -f $TRAVIS_BUILD_DIR/webapp/Dockerfile.maintenance
-docker push humanconnection/nitro-backend:latest
-docker push humanconnection/nitro-web:latest
-docker push humanconnection/neo4j:latest
-docker push humanconnection/maintenance-worker:latest
-docker push humanconnection/maintenance:latest
+
+for app in "${apps[@]}"
+do
+  for tag in "${tags[@]}"
+  do
+    SOURCE="humanconnection/${app}:latest"
+    TARGET="humanconnection/${app}:${tag}"
+    if docker manifest inspect $TARGET &> /dev/null; then
+      echo "Docker image ${TARGET} already present, skipping ..."
+    else
+      docker tag $SOURCE $TARGET
+      docker push tag
+    fi
+  done
+done