Add workflow to publish nginx and service images to GHCR (#676)

Author: lognaturel

.github/workflows/ghcr.yml

@@ -0,0 +1,58 @@
+name: GHCR
+
+on:
+  workflow_dispatch:
+  push:
+    branches: [master]
+    tags: ["v*.*.*"]
+
+env:
+  REGISTRY: ghcr.io
+
+jobs:
+  build-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    strategy:
+      matrix:
+        image: [nginx, service]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          fetch-tags: true
+          submodules: recursive
+
+      - name: Log into registry ${{ env.REGISTRY }}
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract Docker metadata
+        id: meta
+        uses: docker/metadata-action@v5
+        with:
+          images: ${{ env.REGISTRY }}/${{ github.repository_owner }}/central-${{ matrix.image }}
+
+      - name: Set up QEMU emulator for multi-arch images
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push ${{ matrix.image }} Docker image
+        uses: docker/build-push-action@v5
+        with:
+            file: ${{ matrix.image }}.dockerfile
+            context: .
+            push: true
+            tags: ${{ steps.meta.outputs.tags }}
+            labels: ${{ steps.meta.outputs.labels }}
+            platforms: 'linux/amd64,linux/arm64'

docker-compose.yml

@@ -77,8 +77,6 @@ services:
   nginx:
     build:
       context: .
-      args:
-        - OIDC_ENABLED=${OIDC_ENABLED:-false}
       dockerfile: nginx.dockerfile
     depends_on:
       - service
@@ -90,6 +88,11 @@ services:
       - SENTRY_ORG_SUBDOMAIN=${SENTRY_ORG_SUBDOMAIN:-o130137}
       - SENTRY_KEY=${SENTRY_KEY:-3cf75f54983e473da6bd07daddf0d2ee}
       - SENTRY_PROJECT=${SENTRY_PROJECT:-1298632}
+      - OIDC_ENABLED=${OIDC_ENABLED:-false}
+    volumes:
+      - ./files/local/customssl/:/etc/customssl/live/local/:ro
+      - ./files/nginx/odk.conf.template:/usr/share/odk/nginx/odk.conf.template:ro
+      - ./files/nginx/client-config.json.template:/usr/share/odk/nginx/client-config.json.template:ro
     ports:
       - "${HTTP_PORT:-80}:80"
       - "${HTTPS_PORT:-443}:443"

files/nginx/setup-odk.sh

@@ -1,5 +1,15 @@
 #!/bin/bash
 
+
+echo "writing client config..."
+if [[ $OIDC_ENABLED != 'true' ]] && [[ $OIDC_ENABLED != 'false' ]]; then
+  echo 'OIDC_ENABLED must be either true or false'
+  exit 1
+fi
+
+envsubst < /usr/share/odk/nginx/client-config.json.template > /usr/share/nginx/html/client-config.json
+
+
 DH_PATH=/etc/dh/nginx.pem
 if [ "$SSL_TYPE" != "upstream" ] && [ ! -s "$DH_PATH" ]; then
   openssl dhparam -out "$DH_PATH" 2048
@@ -17,7 +27,9 @@ fi
 
 # start from fresh templates in case ssl type has changed
 echo "writing fresh nginx templates..."
+# redirector.conf gets deleted if using upstream SSL so copy it back
 cp /usr/share/odk/nginx/redirector.conf /etc/nginx/conf.d/redirector.conf
+
 CNAME=$( [ "$SSL_TYPE" = "customssl" ] && echo "local" || echo "$DOMAIN") \
 envsubst '$SSL_TYPE $CNAME $SENTRY_ORG_SUBDOMAIN $SENTRY_KEY $SENTRY_PROJECT' \
   < /usr/share/odk/nginx/odk.conf.template \

nginx.dockerfile

@@ -9,8 +9,6 @@ RUN apt-get update \
 COPY ./ ./
 RUN files/prebuild/write-version.sh
 RUN files/prebuild/build-frontend.sh
-ARG OIDC_ENABLED
-RUN files/prebuild/write-client-config.sh
 
 
 
@@ -21,17 +19,20 @@ FROM jonasal/nginx-certbot:5.0.1
 EXPOSE 80
 EXPOSE 443
 
-VOLUME [ "/etc/dh", "/etc/selfsign", "/etc/nginx/conf.d" ]
-ENTRYPOINT [ "/bin/bash", "/scripts/setup-odk.sh" ]
+# Persist Diffie-Hellman parameters and/or selfsign key
+VOLUME [ "/etc/dh", "/etc/selfsign" ]
 
 RUN apt-get update && apt-get install -y netcat-openbsd
 
 RUN mkdir -p /usr/share/odk/nginx/
 
 COPY files/nginx/setup-odk.sh /scripts/
-COPY files/local/customssl/*.pem /etc/customssl/live/local/
-COPY files/nginx/*.conf* /usr/share/odk/nginx/
+RUN chmod +x /scripts/setup-odk.sh
+
+COPY files/nginx/redirector.conf /usr/share/odk/nginx/
+COPY files/nginx/common-headers.conf /usr/share/odk/nginx/
 
 COPY --from=intermediate client/dist/ /usr/share/nginx/html
 COPY --from=intermediate /tmp/version.txt /usr/share/nginx/html
-COPY --from=intermediate /tmp/client-config.json /usr/share/nginx/html
+
+ENTRYPOINT [ "/scripts/setup-odk.sh" ]