All varnish to set varnish file name

Dockerfile

@@ -7,13 +7,13 @@ LABEL org.opencontainers.image.description="Varnish on Ubuntu, vcl sourced from
 RUN apt-get update -y && apt-get install -y varnish python3-pip
 RUN pip install awscli
 
-COPY start.sh /start.sh
-RUN chmod +x /start.sh
-
 WORKDIR /usr/app/src
 COPY varnish-cleanup/requirements.txt ./
 RUN pip install -r requirements.txt
 
+COPY start.sh /start.sh
+RUN chmod +x /start.sh
+
 COPY varnish-cleanup/cleanup_handler.py ./
 COPY varnish-cleanup/app ./app
 

README.md

@@ -12,10 +12,11 @@ The following environment settings are expected:
 * `VARNISH_CACHE_FOLDER` - Folder where disk backed cache is stored.
 * `VARNISH_CACHE_SIZE` - Size of cache.
 * `AWS_PROFILE` - Required to run locally
-* `INCOMING_QUEUE` - the name of the queue that the cleanup handler listens to
 
 The following configuration is optional:
 
+* `VARNISH_CACHE_FILE` - The name of varnish [storage file](https://varnish-cache.org/docs/trunk/users-guide/storage-backends.html#file) (e.g. `varnish_cache.bin`). If specified it is appended to `VARNISH_CACHE_FOLDER` to create file (if unspecified folder only is used)
+* `INCOMING_QUEUE` - the name of the queue that the cleanup handler listens to
 * `VARNISH_ADDRESS` - The location of varnish used by the cleanup handler. Defaults to localhost
 * `AWS_REGION` - The AWS region. Defaults to eu-west-1
 * `USE_LOCAL_CONFIG` - Whether to use a local config file over S3. 

start.sh

@@ -15,10 +15,15 @@ RELOAD_VCL=1
 
 mkdir -p ${VARNISH_CACHE_FOLDER}
 
-varnishd -a 0.0.0.0:${VARNISH_PORT} -T 127.0.0.1:6082 -f /etc/varnish/default.vcl -s file,${VARNISH_CACHE_FOLDER}/varnish_cache.bin,${VARNISH_CACHE_SIZE}
+varnishd -a 0.0.0.0:${VARNISH_PORT} -T 127.0.0.1:6082 -f /etc/varnish/default.vcl -s file,${VARNISH_CACHE_FOLDER}/${VARNISH_CACHE_FILE},${VARNISH_CACHE_SIZE}
 
-varnishlog &
 
-# Start varnish cleanup
-
-python3 /usr/app/src/cleanup_handler.py
+if [ -z "$INCOMING_QUEUE" ]
+then
+  echo 'no queue monitoring'
+  varnishlog
+else
+  # Start varnish cleanup
+  varnishlog &
+  python3 /usr/app/src/cleanup_handler.py
+fi