diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..0f73c31
--- /dev/null
+++ b/build.sh
@@ -0,0 +1,2 @@
+docker pull kartoza/postgis:9.6-2.4
+mkdir -p pg_data
diff --git a/start.sh b/start.sh
index 28781d8..e644af6 100755
--- a/start.sh
+++ b/start.sh
@@ -1,6 +1,4 @@
-docker pull kartoza/postgis:9.6-2.4
-mkdir -p pg_data
-docker run -d -m 2g \
+docker run -d \
 -e POSTGRES_USER=gisuser \
 -e POSTGRES_PASS=password \
 -e POSTGRES_DBNAME=gisdb \