diff --git a/Dockerfile b/Dockerfile
index 5195622..61c125f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@ FROM ruby:2.4
 
 ## Install nodejss
 RUN apt-get -y update \
-&& apt-get -y install nodejs \
+&& apt-get -y install nodejs mysql-client\
 && rm -rf /var/lib/apt/lists/*
 
 ## Install required gems
diff --git a/README.md b/README.md
index 544ba2e..478206e 100644
--- a/README.md
+++ b/README.md
@@ -6,5 +6,7 @@ Change configuration in docker-compose.yml to update passwords for MySQL/RabbitM
 ```
 docker-compose up -d
 ```
+### Configuration
+Configuration is located at data/postal/config after the first start.
 
 Still WIP
diff --git a/docker-compose.yml b/docker-compose.yml
index 2d58305..24679e7 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,8 +5,7 @@ services:
     image: postal
     container_name: postal
     volumes:
-      - ./data/postal/config:/opt/postal/config
-      - ./data/postal/docker:/opt/postal/docker
+      - ./data/postal:/opt/postal/config
     environment:
       - POSTAL_HOSTNAME=idontknow.nowhere.com
       - MYSQL_ROOT_PASSWORD=changeme
diff --git a/scripts/start.sh b/scripts/start.sh
index 44077b7..7794b21 100755
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -25,12 +25,13 @@ sed -i -e '/rabbitmq:/!b' -e ':a' -e "s/username.*/username: $RABBITMQ_DEFAULT_U
 sed -i -e '/rabbitmq:/!b' -e ':a' -e "s/password.*/password: $RABBITMQ_DEFAULT_PASS/;t trail" -e 'n;ba' -e ':trail' -e 'n;btrail' /opt/postal/config/postal.yml
 sed -i -e '/rabbitmq:/!b' -e ':a' -e "s/vhost.*/vhost: \/$RABBITMQ_DEFAULT_VHOST/;t trail" -e 'n;ba' -e ':trail' -e 'n;btrail' /opt/postal/config/postal.yml
 
-### Initialize DB
-if [[ ! -f /opt/postal/docker/postal_initialized ]]; then
-	/opt/postal/bin/postal initialize && touch /opt/postal/docker/postal_initialized
-else
-	/opt/postal/bin/postal upgrade
-fi
+## Initialize DB
+echo "== Waiting for MySQL to start up =="
+while ! mysqladmin ping -h mysql --silent; do
+    sleep 1
+done
+/opt/postal/bin/postal upgrade
+
 
 ## Run
 /opt/postal/bin/postal run