How docker mounts nginx directory

When using Docker to build Nginx services, it is often necessary to mount the Nginx directory to facilitate modification of the Nginx configuration file and management of website resources. The following will introduce the steps on how to mount the Nginx directory in Docker.

1. Create a new Nginx container

You can use the following command to start a new Nginx container:

docker run -d --name mynginx nginx

This command will start an Nginx in the background container. If there is no Nginx image locally, the Nginx image will be downloaded from Docker Hub.

2. Mount Nginx directory

To mount the Nginx directory, you need to specify a directory as the local directory and mount the local directory to the specified directory of the Nginx container. For example, we can mount the local directory /my/nginx/location to the directory of the Nginx container /etc/nginx/conf.d below:

docker run -d --name mynginx -v /my/nginx/location:/etc/nginx/conf.d nginx

This command A local directory /my/nginx/location is specified, and this directory will be mounted to the Nginx container directory /etc/nginx/conf.d. In this way, inside the Nginx container, when accessing the /etc/nginx/conf.d directory, you can see the contents of the local directory /my/nginx/location.

3. Modify the Nginx configuration file

Modify the Nginx configuration file in the /my/nginx/location directory on the local host. All modification operations can be performed directly on the local host. After the modification is completed, restart the Nginx container to make the new configuration take effect:

docker restart mynginx

4. Verification

Use the docker exec command to enter the container and view Nginx Whether the configuration is effective:

docker exec -it mynginx /bin/bash
cd /etc/nginx/conf.d
ls -l

The output result should be the modified configuration file. If you do not see the modified configuration file, then check whether the local directory is mounted successfully and whether there is an error message in the Nginx container log.

Summary

Mounting the Nginx directory in Docker is very simple. You only need to use the docker run command to specify the -v parameter to mount the local directory. Just load it into the directory of the Nginx container. In this way, we can easily modify the Nginx configuration file on the local host and better manage the Nginx service.

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