add .env.template

contrib/docker/.env.template

@@ -0,0 +1,13 @@
+# Variables in this file will be substituted in docker-compose.yml
+# Verify correct substitution with "docker-compose config"
+
+# Image: ckan
+# When developing on AWS, your CKAN_SITE_URL is the output of:
+# curl -s http://169.254.169.254/latest/meta-data/public-hostname
+CKAN_SITE_URL=http://ec2-xxx-xxx-xxx-xxx.ap-southeast-2.compute.amazonaws.com
+# When developing locally, your CKAN_SITE_URL can be
+# CKAN_SITE_URL=http://localhost:80
+
+# Image: db
+POSTGRES_PASSWORD=ckan
+