diff --git a/docker/Dockerfile b/docker/Dockerfile
index 4f92a24..624a709 100644
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -18,4 +18,9 @@
 RUN apk del ca-certificates wget
 RUN rm -rf /var/cache/apk/*
 
+# copy files
+COPY docker-entrypoint.sh /
+COPY database.conf ./
+
+ENTRYPOINT ["/docker-entrypoint.sh"]
 CMD java -jar $GITBUCKET_HOME/latest.war --host=$GITBUCKET_HOST --port=$GITBUCKET_PORT --gitbucket.home=$GITBUCKET_HOME 
diff --git a/docker/database.conf b/docker/database.conf
new file mode 100644
index 0000000..ba6c630
--- /dev/null
+++ b/docker/database.conf
@@ -0,0 +1,5 @@
+db {
+	url = "jdbc:mysql://GITBUCKET_DATABASE_HOST/GITBUCKET_DATABASE_NAME?useUnicode=true&characterEncoding=utf8"
+	user = "GITBUCKET_DATABASE_USER"
+	password = "GITBUCKET_DATABASE_PASSWORD"
+}
diff --git a/docker/docker-entrypoint.sh b/docker/docker-entrypoint.sh
new file mode 100644
index 0000000..8a31fe6
--- /dev/null
+++ b/docker/docker-entrypoint.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+# replace mysql settings in config file
+dbfile=${GITBUCKET_HOME}/database.config
+sed -i "/GITBUCKET_DATABASE_NAME/c\\${GITBUCKET_DATABASE_NAME};" $dbfile
+sed -i "/GITBUCKET_DATABASE_HOST/c\\${GITBUCKET_DATABASE_HOST};" $dbfile
+sed -i "/GITBUCKET_DATABASE_PASSWORD/c\\${GITBUCKET_DATABASE_PASSWORD};" $dbfile
+sed -i "/GITBUCKET_DATABASE_USER/c\\${GITBUCKET_DATABASE_USER};" $dbfile
+
+
+# start gitbucket