chore(docker): introduce dockerrun.bash

Dockerfile

@@ -70,4 +70,4 @@ RUN ln -s /fence/wsgi.py /var/www/fence/wsgi.py \
 EXPOSE 80
 WORKDIR /var/www/fence/
 
-CMD rm -f /var/run/apache2/apache2.pid && /usr/sbin/apache2ctl -D FOREGROUND
+CMD bash ./dockerrun.bash

dockerrun.bash

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+#
+# Update certificate authority index -
+# environment may have mounted more authorities
+#
+update-ca-certificates
+#
+# Enable debug flag based on GEN3_DEBUG environment
+#
+if [ -f ./wsgi.py && "$GEN3_DEBUG" == "True" ]; then
+  echo -e "\napplication.debug=True\n" >> ./wsgi.py
+fi  
+#
+# Kubernetes may mount jwt-keys as a tar ball
+#
+if [ -f /fence/jwt-keys.tar ]; then
+  (
+    cd /fence
+    tar xvf jwt-keys.tar
+    if [ -d jwt-keys ]; then
+      mkdir -p keys
+      mv jwt-keys/* keys/
+    fi
+  )
+fi
+rm -rf /var/run/apache2/apache2.pid
+/usr/sbin/apache2ctl -D FOREGROUND