![]() 首先確認主機有沒有 SSH Client *(Powershell for Windows, terminal for Others)* * Remote - WSL - Get a Linux-powered development experience in the Windows Subsystem for Linux. * Remote - Containers - Work with a sandboxed toolchain or container-based application inside (or mounted into) a container. I work at eBay Kleinanzeigen, one of the world’s biggest classified companies.* Remote - SSH - Connect to any location by opening folders on a remote machine/VM using SSH. ![]() If you liked it and felt the need to give me a round of applause or just want to get in touch, follow me on Twitter. You need to give the absolute local path or a volume name and map it to a directory within the container -v. You bind local directories and volumes to a container by providing the Docker run -v parameter. Summaryĭocker containers get more powerful when you know how to persist your data and not to lose them when stopping a container. This method is known to have better performance than local directory bindings. It’s recommended to use them for persisting files that you don’t need to observe or change from your host system. You see the files, but they're isolated in a Docker volume. $ docker run -name mysql-db -v mysql-data:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=my-secret-pw -d mysql:latestīefore removing the Docker volume, you can open your Docker GUI and inspect the volume by clicking on the data tab. Let’s create a Docker volume and mount it to persist MySQL data: # create volume They are fully managed and do not depend on certain operating system specifics. A Docker volume is a directory somewhere in your Docker storage directory and can be mounted to one or many containers. Instead of binding your local directory, you can use Docker volumes. How to Use Docker Volumes to Persist Changes You should use binding local directories for files you want to change or observe on the host, like configuration files and log files. The advantages of this method are that it’s straightforward to use and easy to access. So if you stop and start the database, you can mount the same directory, and your configuration and stored data will be available. Every file you change on the host is changed in the container, and every file that is changed in the container is changed on the host. rw-r- 1 sebarthel staff 913 Mar 26 22:47 binlog.000001īinding a directory is a 2-way sync. rw-r- 1 sebarthel staff 56 Mar 26 22:47 auto.cnf ĭrwxr-xr-x 3 sebarthel staff 96 Mar 26 22:47. $ docker run -name mysql-db -v $(pwd)/datadir:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=my-secret-pw -d mysql:8.0.28-debian For example, you can start a MySQL database and mount the data directory to store the actual data in your mounted directory. v or -volume allows you to mount local directories and files to your container. Using the parameter -v allows you to bind a local directory. How to Mount Local Directories using docker run -v The docker run command first creates a writeable container layer over the specified image and then starts using the specified command. Knowing both enables you to use Docker containers for many more use cases that can boost your productivity. This tutorial will teach you how to bind local directories to your Docker container and use docker-managed volumes alternatively. But Docker provides volumes and bind mounts, which are two mechanisms for persisting data in your Docker container. This means that restarting a container erases all your stored data in the container. They let you test-run your applications in local environments and start building out the required infrastructure.ĭocker containers are immutable by nature. Containers make software engineering easier and more efficient, and Docker containers are popular and easy to use.Ĭontainers are essential for local development.
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