Reordered and renamed tem_dockerbuild.yml. This workflow is now only …

…triggered when the corresponding Dockerfile changes.

.github/workflows/temsimulator.yml → .github/workflows/tem_dockerbuild.yml

@@ -2,10 +2,14 @@ name: "Building TEM simulator container"
 
 on:
   push:
-    branches: [ master, temsim-container ]
+    branches: [master,temsim-container]
+    paths:
+      - 'docker/TEM-simulator/Dockerfile'
 
   pull_request:
-    branch: [ master, temsim-container ]
+    branch: [master]
+    paths:
+      - 'docker/TEM-simulator/Dockerfile'
 
 jobs:
   build:
@@ -15,6 +19,10 @@ jobs:
       - name: Check Out Repo
         uses: actions/checkout@v2
 
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+
       - name: Cache Docker layers
         uses: actions/cache@v2
         with:
@@ -29,10 +37,6 @@ jobs:
           username: ${{ secrets.DOCKER_HUB_USERNAME }}
           password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
 
-      - name: Set up Docker Buildx
-        id: buildx
-        uses: docker/setup-buildx-action@v1
-
       - name: Build and push
         id: docker_build
         uses: docker/build-push-action@v2
@@ -44,5 +48,6 @@ jobs:
           tags: ${{ secrets.DOCKER_HUB_USERNAME }}/simspi-temsimulator:latest
           cache-from: type=local,src=/tmp/.buildx-cache
           cache-to: type=local,dest=/tmp/.buildx-cache
+
       - name: Image digest
-        run: echo ${{ steps.docker_build.outputs.digest }}
+        run: echo ${{ steps.docker_build.outputs.digest }}

docker/TEM-simulator/Dockerfile

@@ -1,4 +1,3 @@
-# syntax=docker/dockerfile:1
 FROM ubuntu:18.04
 
 WORKDIR /work