Generate secret_key randomly in the Dockerfile

Author: samalba

Dockerfile

@@ -1,12 +1,13 @@
 FROM ubuntu
 
-RUN sed 's/main$/main universe/' -i /etc/apt/sources.list && apt-get update
+RUN sed -i 's/main$/main universe/' /etc/apt/sources.list && apt-get update
 RUN apt-get install -y git-core python-pip build-essential python-dev libevent1-dev -y
 ADD . /docker-registry
 
 RUN cd /docker-registry && pip install -r requirements.txt
 RUN cp --no-clobber /docker-registry/config_sample.yml /docker-registry/config.yml
+RUN sed "s/ secret_key: REPLACEME/ secret_key: $(< /dev/urandom tr -dc A-Za-z0-9 | head -c 32)/" /docker-registry/config.yml
 
 EXPOSE 5000
 
-CMD cd /docker-registry && ./setup-configs.sh && gunicorn --access-logfile - --debug --max-requests 100 --graceful-timeout 3600 -t 3600 -k gevent -b 0.0.0.0:5000 -w 2 wsgi:application
+CMD cd /docker-registry && ./setup-configs.sh && gunicorn --access-logfile - --debug --max-requests 100 --graceful-timeout 3600 -t 3600 -k gevent -b 0.0.0.0:5000 -w 4 wsgi:application

setup-configs.sh

@@ -1,7 +1,7 @@
 #!/bin/bash
 
 if [[ -z "$GUNICORN_WORKERS" ]] ; then
-    GUNICORN_WORKERS=2
+    GUNICORN_WORKERS=4
 fi
 
 if [ "$SETTINGS_FLAVOR" = "prod" ] ; then