it works now :)

Dockerfile

@@ -1,12 +0,0 @@
-FROM rust:latest
-
-RUN cargo install mdbook
-RUN apt-get update && apt-get install -y vim git
-
-RUN mkdir -p /mdbook
-WORKDIR /mdbook
-
-EXPOSE 3000
-
-CMD mdbook serve -n 0.0.0.0
-

docker-compose.yaml

@@ -1,9 +1,11 @@
 services:
   mdbook:
-    build: .
+    image: peaceiris/mdbook
     container_name: mdbook
     volumes:
       - "./blog:/mdbook"
     ports:
       - 80:3000
     restart: always
+    entrypoint: ['/usr/bin/mdbook', 'serve', '/mdbook', '-n', '0.0.0.0']
+