diff --git a/docker-compose.yml b/docker-compose.yml
index 93e28ddd..1b806b41 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -322,6 +322,7 @@ services:
       build: ./postgres
       volumes:
         - ${DATA_PATH_HOST}/postgres:/var/lib/postgresql/data
+        - ${POSTGRES_ENTRYPOINT_INITDB}:/docker-entrypoint-initdb.d
       ports:
         - "${POSTGRES_PORT}:5432"
       environment:
diff --git a/postgres/docker-entrypoint-initdb.d/.gitignore b/postgres/docker-entrypoint-initdb.d/.gitignore
new file mode 100644
index 00000000..c97f963b
--- /dev/null
+++ b/postgres/docker-entrypoint-initdb.d/.gitignore
@@ -0,0 +1 @@
+*.sh
diff --git a/postgres/docker-entrypoint-initdb.d/createdb.sh.example b/postgres/docker-entrypoint-initdb.d/createdb.sh.example
new file mode 100644
index 00000000..33de2ab9
--- /dev/null
+++ b/postgres/docker-entrypoint-initdb.d/createdb.sh.example
@@ -0,0 +1,34 @@
+#!/bin/bash
+#
+# Copy createdb.sh.example to createdb.sh
+# then uncomment then set database name and username to create you need databases
+#
+# example: .env POSTGRES_USER=appuser and need db name is myshop_db
+# 
+#    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+#        CREATE USER $POSTGRES_USER;
+#        CREATE DATABASE myshop_db;
+#        GRANT ALL PRIVILEGES ON DATABASE myshop_db TO $POSTGRES_USER;
+#    EOSQL
+#
+# this sh script will auto run when the postgres container starts and the $DATA_PATH_HOST/postgres not found.
+#
+
+set -e
+# psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+#     CREATE USER db1;
+#     CREATE DATABASE db1;
+#     GRANT ALL PRIVILEGES ON DATABASE db1 TO db1;
+# EOSQL
+
+# psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+#     CREATE USER db2;
+#     CREATE DATABASE db2;
+#     GRANT ALL PRIVILEGES ON DATABASE db2 TO db2;
+# EOSQL
+
+# psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "$POSTGRES_DB" <<-EOSQL
+#     CREATE USER db3;
+#     CREATE DATABASE db3;
+#     GRANT ALL PRIVILEGES ON DATABASE db3 TO db3;
+# EOSQL