Use build arguments, refs #1522

demos/apache-proxy/Dockerfile

@@ -5,14 +5,16 @@ RUN apk add --no-cache \
 	apache2-proxy \
 	bash
 
-RUN pip install datasette
+ARG DATASETTE_REF
+
+RUN pip install https://github.com/simonw/datasette/archive/${DATASETTE_REF}.zip
 
 ENV TINI_VERSION v0.18.0
 ADD https://github.com/krallin/tini/releases/download/${TINI_VERSION}/tini-static /tini
 RUN chmod +x /tini
 
 # Append this to the end of the default httpd.conf file
-RUN echo $'ServerName localhost\n\
+RUN echo -e 'ServerName localhost\n\
 \n\
 <Proxy *>\n\
   Order deny,allow\n\
@@ -22,21 +24,22 @@ RUN echo $'ServerName localhost\n\
 ProxyPass /prefix/ http://localhost:8001/\n\
 Header add X-Proxied-By "Apache2"' >> /etc/apache2/httpd.conf
 
-RUN echo $'<a href="/prefix/">Datasette</a>' > /var/www/localhost/htdocs/index.html
+RUN echo '<a href="/prefix/">Datasette</a>' > /var/www/localhost/htdocs/index.html
 
 WORKDIR /app
 
 ADD https://latest.datasette.io/fixtures.db /app/fixtures.db
 
-RUN echo $'#!/usr/bin/env bash\n\
+RUN echo -e "#!/usr/bin/env bash\n\
-set -e\n\
+datasette /app/fixtures.db --setting base_url '/prefix/' --version-note '${DATASETTE_REF}' -h 0.0.0.0 -p 8001 &\n\
 \n\
 httpd -D FOREGROUND & \n\
-datasette fixtures.db --setting base_url "/prefix/" -h 0.0.0.0 -p 8001 &\n\
 \n\
-wait -n' > /app/start.sh
+wait -n\n\
+exit $?" > /app/start.sh
 
 RUN chmod +x /app/start.sh
 
 EXPOSE 80
-ENTRYPOINT ["/tini", "--", "/app/start.sh"]
+
+CMD /tini -- /app/start.sh

demos/apache-proxy/README.md

@@ -3,3 +3,14 @@
 See also [Running Datasette behind a proxy](https://docs.datasette.io/en/latest/deploying.html#running-datasette-behind-a-proxy)
 
 This live demo is running at https://apache-proxy-demo.datasette.io/
+
+To build locally, passing in a Datasette commit hash (or `main` for the main branch):
+
+    docker build -t datasette-apache-proxy-demo . \
+      --build-arg DATASETTE_REF=c617e1769ea27e045b0f2907ef49a9a1244e577d
+
+Then run it like this:
+
+    docker run -p 5000:80 datasette-apache-proxy-demo
+
+And visit `http://localhost:5000/` or `http://localhost:5000/prefix/`

demos/apache-proxy/deploy.sh

@@ -1,13 +1,30 @@
 #!/bin/bash
-# https://til.simonwillison.net/cloudrun/ship-dockerfile-to-cloud-run
+# https://til.simonwillison.net/cloudrun/using-build-args-with-cloud-run
+
+if [[ -z "$DATASETTE_REF" ]]; then
+    echo "Must provide DATASETTE_REF environment variable" 1>&2
+    exit 1
+fi
 
 NAME="datasette-apache-proxy-demo"
 PROJECT=$(gcloud config get-value project)
 IMAGE="gcr.io/$PROJECT/$NAME"
 
-gcloud builds submit --tag $IMAGE
+# Need YAML so we can set --build-arg
-gcloud run deploy \
+echo "
+steps:
+- name: 'gcr.io/cloud-builders/docker'
+  args: ['build', '-t', '$IMAGE', '.', '--build-arg', 'DATASETTE_REF=$DATASETTE_REF']
+- name: 'gcr.io/cloud-builders/docker'
+  args: ['push', '$IMAGE']
+" > /tmp/cloudbuild.yml
+
+gcloud builds submit --config /tmp/cloudbuild.yml
+
+rm /tmp/cloudbuild.yml
+
+gcloud run deploy $NAME \
   --allow-unauthenticated \
   --platform=managed \
-    --image $IMAGE $NAME \
+  --image $IMAGE \
   --port 80