> For the complete documentation index, see [llms.txt](https://nishanthkp.gitbook.io/devsecops-for-bbk/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nishanthkp.gitbook.io/devsecops-for-bbk/dockerfile/dockerfile-volume.md).

# Dockerfile Volume

In this lesson, we will use the VOLUME instruction to automatically create a mount point in a Docker image. When a container is created using this image, a volume will be created and mounted to the specified directory.

Step 1: Set up your environment:

```bash
mkdir volumes
```

```bash
cd volumes
```

Step 2: Create the Dockerfile:

```bash
vi Dockerfile
```

Step 3: Build an Nginx image that uses a volume:

```bash
FROM nginx:latest
VOLUME ["/usr/share/nginx/html/"]
```

Step 4: Build the new image:

```bash
docker image build -t nishanthkp/nginx:v1 .
```

Step 5: Create a new container using the nishanthkp/nginx:v1 image:

```bash
docker container run -d --name nginx-volume nishanthkp/nginx:v1
```

Step 6: Inspect nginx-volume:

```bash
docker container inspect nginx-volume
```

Step 7: List the volumes:

```bash
docker volume ls | grep [VOLUME_NAME]
```

Step 8: Inspect the volumes:

```bash
docker volume inspect [VOLUME_NAME]
```