diff --git a/Dockerfile b/Dockerfile
new file mode 100755
index 0000000..b6ab3ee
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,3 @@
+FROM alpine:latest
+
+RUN echo "Hello World"
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 963fe73..9b18984 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -2,7 +2,4 @@ version: '3'
 
 services:
   hello_world:
-    image: alpine:latest
-    volumes:
-      - ./hello-world.sh:/opt/hello-world.sh:ro
-    command: /bin/sh /opt/hello-world.sh
+    build: .
diff --git a/hello-world.sh b/hello-world.sh
deleted file mode 100755
index b5b6a5a..0000000
--- a/hello-world.sh
+++ /dev/null
@@ -1 +0,0 @@
-echo "Hello World"