Ensure ghcr image tag names are only lowercase.

Author: dakotablair

.github/workflows/build-chimbuko-spack-dev-ddb.yml

@@ -43,9 +43,12 @@ jobs:
     - name: Pull chimbuko/chimbuko-spack-env docker image
       shell: bash
       run: |
-        docker pull ghcr.io/${{ github.repository_owner }}/chimbuko/chimbuko-spack-env:ubuntu18.04
+        export OWNER_LOWER="$(\
+            echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]'\
+        )"
+        docker pull ghcr.io/$OWNER_LOWER/chimbuko/chimbuko-spack-env:ubuntu18.04
         docker image tag \
-          ghcr.io/${{ github.repository_owner }}/chimbuko/chimbuko-spack-env:ubuntu18.04 \
+          ghcr.io/$OWNER_LOWER/chimbuko/chimbuko-spack-env:ubuntu18.04 \
           chimbuko/chimbuko-spack-env:ubuntu18.04
 
     - name: Build test environment image
@@ -60,6 +63,9 @@ jobs:
     - name: Push chimbuko-spack-dev-ddb image
       shell: bash
       run: |
+        export OWNER_LOWER="$(\
+            echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]'\
+        )"
         docker image tag chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04 \
-          ghcr.io/${{ github.repository_owner }}/chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04
-        docker image push ghcr.io/${{ github.repository_owner }}/chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04
+          ghcr.io/$OWNER_LOWER/chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04
+        docker image push ghcr.io/$OWNER_LOWER/chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04

.github/workflows/build-chimbuko-spack-env.yml

@@ -52,6 +52,9 @@ jobs:
     - name: Push PerformanceAnalysis image
       shell: bash
       run: |
+        export OWNER_LOWER="$(\
+            echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]'\
+        )"
         docker image tag chimbuko/chimbuko-spack-env:ubuntu18.04 \
-          ghcr.io/${{ github.repository_owner }}/chimbuko/chimbuko-spack-env:ubuntu18.04
-        docker image push ghcr.io/${{ github.repository_owner }}/chimbuko/chimbuko-spack-env:ubuntu18.04
+          ghcr.io/$OWNER_LOWER/chimbuko/chimbuko-spack-env:ubuntu18.04
+        docker image push ghcr.io/$OWNER_LOWER/chimbuko/chimbuko-spack-env:ubuntu18.04

.github/workflows/end-to-end.yml

@@ -28,9 +28,12 @@ jobs:
     - name: Pull chimbuko/chimbuko-spack-dev-ddb docker image
       shell: bash
       run: |
-        docker pull ghcr.io/${{ github.repository_owner }}/chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04
+        export OWNER_LOWER="$(\
+            echo ${{ github.repository_owner }} | tr '[:upper:]' '[:lower:]'\
+        )"
+        docker pull ghcr.io/$OWNER_LOWER/chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04
         docker image tag \
-          ghcr.io/${{ github.repository_owner }}/chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04 \
+          ghcr.io/$OWNER_LOWER/chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04 \
           chimbuko/chimbuko-spack-dev-ddb:ubuntu18.04
 
     - name: Run tests in container