chore: change mount path to work with postgres:18

Signed-off-by: David Karlsson <[email protected]>

Author: dvdksn

content/get-started/docker-concepts/running-containers/overriding-container-defaults.md

@@ -152,7 +152,7 @@ Sometimes, you might need to override the default commands (`CMD`) or entry poin
     ```yaml
     services:
       postgres:
-        image: postgres
+        image: postgres:18
         entrypoint: ["docker-entrypoint.sh", "postgres"]
         command: ["-h", "localhost", "-p", "5432"]
         environment:

content/get-started/docker-concepts/running-containers/persisting-container-data.md

@@ -53,7 +53,7 @@ Volumes have their own lifecycle beyond that of containers and can grow quite la
 
 ## Try it out
 
-In this guide, you’ll practice creating and using volumes to persist data created by a Postgres container. When the database runs, it stores files into the `/var/lib/postgresql/data` directory. By attaching the volume here, you will be able to restart the container multiple times while keeping the data.
+In this guide, you'll practice creating and using volumes to persist data created by a Postgres container. When the database runs, it stores files into the `/var/lib/postgresql` directory. By attaching the volume here, you will be able to restart the container multiple times while keeping the data.
 
 ### Use volumes
 
@@ -62,7 +62,7 @@ In this guide, you’ll practice creating and using volumes to persist data crea
 2. Start a container using the [Postgres image](https://hub.docker.com/_/postgres) with the following command:
 
     ```console
-    $ docker run --name=db -e POSTGRES_PASSWORD=secret -d -v postgres_data:/var/lib/postgresql/data postgres
+    $ docker run --name=db -e POSTGRES_PASSWORD=secret -d -v postgres_data:/var/lib/postgresql postgres:18
     ```
 
     This will start the database in the background, configure it with a password, and attach a volume to the directory PostgreSQL will persist the database files.
@@ -115,7 +115,7 @@ In this guide, you’ll practice creating and using volumes to persist data crea
 8. Start a new container by running the following command, attaching the same volume with the persisted data:
 
     ```console
-    $ docker run --name=new-db -d -v postgres_data:/var/lib/postgresql/data postgres 
+    $ docker run --name=new-db -d -v postgres_data:/var/lib/postgresql postgres:18
     ```
 
     You might have noticed that the `POSTGRES_PASSWORD` environment variable has been omitted. That’s because that variable is only used when bootstrapping a new database.

content/guides/dotnet/deploy.md

@@ -96,7 +96,7 @@ spec:
               value: example
             - name: POSTGRES_PASSWORD
               value: example
-          image: postgres
+          image: postgres:18
           name: db
           ports:
             - containerPort: 5432

content/guides/dotnet/develop.md

@@ -97,13 +97,13 @@ services:
       db:
         condition: service_healthy
   db:
-    image: postgres
+    image: postgres:18
     restart: always
     user: postgres
     secrets:
       - db-password
     volumes:
-      - db-data:/var/lib/postgresql/data
+      - db-data:/var/lib/postgresql
     environment:
       - POSTGRES_DB=example
       - POSTGRES_PASSWORD_FILE=/run/secrets/db-password
@@ -250,13 +250,13 @@ services:
         - action: rebuild
           path: .
   db:
-    image: postgres
+    image: postgres:18
     restart: always
     user: postgres
     secrets:
       - db-password
     volumes:
-      - db-data:/var/lib/postgresql/data
+      - db-data:/var/lib/postgresql
     environment:
       - POSTGRES_DB=example
       - POSTGRES_PASSWORD_FILE=/run/secrets/db-password
@@ -355,13 +355,13 @@ services:
     environment:
       - ASPNETCORE_ENVIRONMENT=Development
   db:
-    image: postgres
+    image: postgres:18
     restart: always
     user: postgres
     secrets:
       - db-password
     volumes:
-      - db-data:/var/lib/postgresql/data
+      - db-data:/var/lib/postgresql
     environment:
       - POSTGRES_DB=example
       - POSTGRES_PASSWORD_FILE=/run/secrets/db-password

content/guides/frameworks/laravel/development-setup.md

@@ -285,15 +285,15 @@ services:
       - laravel-development
 
   postgres:
-    image: postgres:16
+    image: postgres:18
     ports:
       - "${POSTGRES_PORT:-5432}:5432"
     environment:
       - POSTGRES_DB=app
       - POSTGRES_USER=laravel
       - POSTGRES_PASSWORD=secret
     volumes:
-      - postgres-data-development:/var/lib/postgresql/data
+      - postgres-data-development:/var/lib/postgresql
     networks:
       - laravel-development
 

content/guides/frameworks/laravel/production-setup.md

@@ -371,7 +371,7 @@ services:
       - laravel
 
   postgres:
-    image: postgres:16
+    image: postgres:18
     restart: unless-stopped
     user: postgres
     ports:
@@ -381,7 +381,7 @@ services:
       - POSTGRES_USER=${POSTGRES_USERNAME}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD}
     volumes:
-      - postgres-data-production:/var/lib/postgresql/data
+      - postgres-data-production:/var/lib/postgresql
     networks:
       - laravel-production
     # Health check for PostgreSQL

content/guides/genai-claude-code-mcp/claude-code-mcp-guide.md

@@ -227,13 +227,13 @@ services:
       - app-net
 
   db:
-    image: postgres:<tag>
+    image: postgres:18
     environment:
       POSTGRES_USER: example
       POSTGRES_PASSWORD: example
       POSTGRES_DB: appdb
     volumes:
-      - db-data:/var/lib/postgresql/data
+      - db-data:/var/lib/postgresql
     ports:
       - "5432:5432"
     networks:

content/guides/golang/deploy.md

@@ -109,7 +109,7 @@ spec:
               value: whatever
             - name: POSTGRES_USER
               value: postgres
-          image: postgres
+          image: postgres:18
           name: db
           ports:
             - containerPort: 5432

content/guides/java/containerize.md

@@ -209,13 +209,13 @@ services:
 #       db:
 #         condition: service_healthy
 #   db:
-#     image: postgres
+#     image: postgres:18
 #     restart: always
 #     user: postgres
 #     secrets:
 #       - db-password
 #     volumes:
-#       - db-data:/var/lib/postgresql/data
+#       - db-data:/var/lib/postgresql
 #     environment:
 #       - POSTGRES_DB=example
 #       - POSTGRES_PASSWORD_FILE=/run/secrets/db-password

content/guides/java/develop.md

@@ -62,10 +62,10 @@ services:
     environment:
       - POSTGRES_URL=jdbc:postgresql://db:5432/petclinic
   db:
-    image: postgres
+    image: postgres:18
     restart: always
     volumes:
-      - db-data:/var/lib/postgresql/data
+      - db-data:/var/lib/postgresql
     environment:
       - POSTGRES_DB=petclinic
       - POSTGRES_USER=petclinic
@@ -193,10 +193,10 @@ services:
     environment:
       - POSTGRES_URL=jdbc:postgresql://db:5432/petclinic
   db:
-    image: postgres
+    image: postgres:18
     restart: always
     volumes:
-      - db-data:/var/lib/postgresql/data
+      - db-data:/var/lib/postgresql
     environment:
       - POSTGRES_DB=petclinic
       - POSTGRES_USER=petclinic
@@ -345,10 +345,10 @@ services:
         - action: rebuild
           path: .
   db:
-    image: postgres
+    image: postgres:18
     restart: always
     volumes:
-      - db-data:/var/lib/postgresql/data
+      - db-data:/var/lib/postgresql
     environment:
       - POSTGRES_DB=petclinic
       - POSTGRES_USER=petclinic