added ubuntu18 version

.github/workflows/docker-publish.yml

@@ -66,8 +66,8 @@ jobs:
 
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action
-      - name: Build and push Docker image
-        id: build-and-push
+      - name: Build and push Docker image (Ubuntu 20)
+        id: build-and-push-ubuntu20
         uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
         with:
           context: .
@@ -81,10 +81,36 @@ jobs:
       # repository is public to avoid leaking data.  If you would like to publish
       # transparency data even for private images, pass --force to cosign below.
       # https://github.com/sigstore/cosign
-      - name: Sign the published Docker image
+      - name: Sign the published Docker image (Ubuntu 20)
         if: ${{ github.event_name != 'pull_request' }}
         env:
           COSIGN_EXPERIMENTAL: "true"
         # This step uses the identity token to provision an ephemeral certificate
         # against the sigstore community Fulcio instance.
-        run: cosign sign ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build-and-push.outputs.digest }}
+        run: cosign sign ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build-and-push-ubuntu20.outputs.digest }}
+
+      # Build and push Ubuntu18 Docker image with Buildx (don't push on PR)
+      # https://github.com/docker/build-push-action
+      - name: Build and push Docker image (Ubuntu 18)
+        id: build-and-push-ubuntu18
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          file: ./Dockerfile.ubuntu18
+          push: ${{ github.event_name != 'pull_request' }}
+          platforms: linux/amd64,linux/arm64,linux/arm/v7,linux/arm/v6
+          tags: ubuntu18
+          labels: ${{ steps.meta.outputs.labels }}
+
+      # Sign the resulting Docker image digest except on PRs.
+      # This will only write to the public Rekor transparency log when the Docker
+      # repository is public to avoid leaking data.  If you would like to publish
+      # transparency data even for private images, pass --force to cosign below.
+      # https://github.com/sigstore/cosign
+      - name: Sign the published Docker image (Ubuntu 18)
+        if: ${{ github.event_name != 'pull_request' }}
+        env:
+          COSIGN_EXPERIMENTAL: "true"
+        # This step uses the identity token to provision an ephemeral certificate
+        # against the sigstore community Fulcio instance.
+        run: cosign sign ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}@${{ steps.build-and-push-ubuntu18.outputs.digest }}

Dockerfile.ubuntu18

@@ -0,0 +1,39 @@
+FROM jlesage/baseimage-gui:ubuntu-18.04
+
+RUN apt-get update && apt-get full-upgrade -y
+
+RUN apt-get install -y curl wget software-properties-common gnupg2 winbind xvfb
+
+RUN dpkg --add-architecture i386
+RUN wget -nc https://dl.winehq.org/wine-builds/winehq.key
+RUN apt-key add winehq.key
+RUN add-apt-repository 'deb https://dl.winehq.org/wine-builds/ubuntu/ bionic main'
+RUN apt-get update
+RUN apt-get install -y winehq-stable
+
+RUN apt-get install -y winetricks
+
+RUN apt-get clean -y && apt-get autoremove -y
+
+ENV WINEPREFIX /config/wine/
+
+RUN \
+    APP_ICON_URL=https://www.backblaze.com/pics/cloud-blaze.png && \
+    install_app_icon.sh "$APP_ICON_URL"
+
+RUN apt-get update && DEBIAN_FRONTEND=noninteractive apt-get install -y locales
+
+RUN sed -i -e 's/# en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/' /etc/locale.gen && \
+    dpkg-reconfigure --frontend=noninteractive locales && \
+    update-locale LANG=en_US.UTF-8
+
+ENV LANG en_US.UTF-8
+
+ENV APP_NAME="Backblaze Personal Backup"
+
+# Disable WINE Debug messages
+ENV WINEDEBUG -all
+
+EXPOSE 5900
+
+COPY startapp.sh /startapp.sh