Update CI to deduplicate steps (don't build and push twice per version) and if on main, push to Docker Hub

Author: GeoffreyBooth

.github/workflows/continuous-integration-workflow.yml

@@ -1,8 +1,5 @@
-name: Build and Test
-
-on:
-  [push, pull_request]
-
+name: CI
+on: push
 jobs:
   ci:
     runs-on: ubuntu-latest
@@ -91,3 +88,16 @@ jobs:
       env:
         CI_VERSION: ${{ matrix.version }}
         SKIP_CLEANUP: 1
+
+    - name: Login to Docker Hub
+      if: ${{ github.ref == 'refs/heads/main' }}
+      uses: docker/login-action@v3
+      with:
+        username: ${{ vars.DOCKER_HUB_USERNAME }}
+        password: ${{ secrets.DOCKER_HUB_PERSONAL_ACCESS_TOKEN }}
+
+    - name: Push Docker image
+      if: ${{ github.ref == 'refs/heads/main' }}
+      run: ./push.sh
+      env:
+        CI_VERSION: ${{ matrix.version }}

build.sh

@@ -6,7 +6,10 @@ source ./versions.sh
 build_cmd() {
 	docker build --build-arg "METEOR_VERSION=$1" --tag geoffreybooth/meteor-base:"$1" ./src
 	if [[ $1 == $latest_version ]]; then
-		docker tag geoffreybooth/meteor-base:"$1" geoffreybooth/meteor-base:latest
+		if ! docker tag geoffreybooth/meteor-base:"$1" geoffreybooth/meteor-base:latest; then
+			printf "${RED}Error tagging Docker base image for Meteor (latest version)${NC}\n"
+			exit 1
+		fi
 	fi
 }
 
@@ -26,7 +29,12 @@ done
 
 
 if [[ "${#versions[@]}" -eq 1 ]]; then
-	printf "${GREEN}Success building Docker base image for Meteor ${versions}\n"
+	printf "${GREEN}Success building Docker base image for Meteor ${versions}"
+	if [[ "${versions[0]}" == $latest_version ]]; then
+		printf " (latest version)\n"
+	else
+		printf "\n"
+	fi
 else
 	printf "${GREEN}Success building Docker base images for all supported Meteor versions\n"
 fi