feature: Added generate-compose script.

Author: sundargs2000

.config

@@ -0,0 +1,12 @@
+#! /bin/bash
+
+# Mandatory settings
+SETTING_EXTERNAL_HOST='localhost.localdomain'
+SETTING_ZULIP_ADMINISTRATOR='admin@example.com'
+
+# Optional secrets config
+POSTGRES_PASSWORD='REPLACE_WITH_SECURE_POSTGRES_PASSWORD'
+MEMCACHED_PASSWORD='REPLACE_WITH_SECURE_MEMCACHED_PASSWORD'
+RABBITMQ_DEFAULT_PASS='REPLACE_WITH_SECURE_RABBITMQ_PASSWORD'
+REDIS_PASSWORD='REPLACE_WITH_SECURE_REDIS_PASSWORD'
+SECRETS_secret_key='REPLACE_WITH_SECURE_SECRET_KEY'

docker-compose.yml renamed to docker-compose.yml.in

@@ -76,8 +76,8 @@ services:
       SECRETS_memcached_password: 'REPLACE_WITH_SECURE_MEMCACHED_PASSWORD'
       SECRETS_redis_password: 'REPLACE_WITH_SECURE_REDIS_PASSWORD'
       SECRETS_secret_key: 'REPLACE_WITH_SECURE_SECRET_KEY'
-      SETTING_EXTERNAL_HOST: 'localhost.localdomain'
-      SETTING_ZULIP_ADMINISTRATOR: 'admin@example.com'
+      SETTING_EXTERNAL_HOST: 'REPLACE_WITH_EXTERNAL_HOST'
+      SETTING_ZULIP_ADMINISTRATOR: 'REPLACE_WITH_ADMIN_EMAIL'
       SETTING_EMAIL_HOST: ''  # e.g. smtp.example.com
       SETTING_EMAIL_HOST_USER: 'noreply@example.com'
       SETTING_EMAIL_PORT: '587'

scripts/generate-compose.sh

@@ -0,0 +1,45 @@
+#! /bin/bash
+source .config
+
+compose=`cat ./docker-compose.yml.in`
+
+compose="${compose//REPLACE_WITH_EXTERNAL_HOST/$SETTING_EXTERNAL_HOST}"; 
+compose="${compose//REPLACE_WITH_ADMIN_EMAIL/$SETTING_ZULIP_ADMINISTRATOR}"; 
+
+if [ $POSTGRES_PASSWORD == "REPLACE_WITH_SECURE_POSTGRES_PASSWORD" ]; 
+then 
+    compose="${compose//REPLACE_WITH_SECURE_POSTGRES_PASSWORD/$(tr -dc 'abcdef1234567890' </dev/urandom | head -c 32  ; echo)}"; 
+else 
+    compose="${compose//REPLACE_WITH_SECURE_POSTGRES_PASSWORD/$POSTGRES_PASSWORD}"; 
+fi;
+
+if [ $MEMCACHED_PASSWORD == "REPLACE_WITH_SECURE_MEMCACHED_PASSWORD" ]; 
+then 
+    compose="${compose//REPLACE_WITH_SECURE_MEMCACHED_PASSWORD/$(tr -dc 'abcdef1234567890' </dev/urandom | head -c 32  ; echo)}"; 
+else 
+    compose="${compose//REPLACE_WITH_SECURE_MEMCACHED_PASSWORD/$MEMCACHED_PASSWORD}"; 
+fi;
+
+if [ $RABBITMQ_DEFAULT_PASS == "REPLACE_WITH_SECURE_RABBITMQ_PASSWORD" ]; 
+then 
+    compose="${compose//REPLACE_WITH_SECURE_RABBITMQ_PASSWORD/$(tr -dc 'abcdef1234567890' </dev/urandom | head -c 32  ; echo)}"; 
+else 
+    compose="${compose//REPLACE_WITH_SECURE_RABBITMQ_PASSWORD/$RABBITMQ_DEFAULT_PASS}"; 
+fi;
+
+if [ $REDIS_PASSWORD == "REPLACE_WITH_SECURE_REDIS_PASSWORD" ]; 
+then 
+    compose="${compose//REPLACE_WITH_SECURE_REDIS_PASSWORD/$(tr -dc 'abcdef1234567890' </dev/urandom | head -c 32  ; echo)}"; 
+else 
+    compose="${compose//REPLACE_WITH_SECURE_REDIS_PASSWORD/$REDIS_PASSWORD}"; 
+fi;
+
+if [ $SECRETS_secret_key == "REPLACE_WITH_SECURE_SECRET_KEY" ]; 
+then 
+    compose="${compose//REPLACE_WITH_SECURE_SECRET_KEY/$(tr -dc 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789' </dev/urandom | head -c 64  ; echo)}"; 
+else 
+    compose="${compose//REPLACE_WITH_SECURE_SECRET_KEY/$SECRETS_secret_key}"; 
+fi;
+
+
+echo "$compose" > "docker-compose.yml"