docker:tldr:1adac

The docker start command is used to start one or more stopped containers.

When a container is stopped, it still retains all its configuration and data, but it is not actively running. The docker start command allows you to restart a stopped container, allowing it to continue from where it left off.

The basic syntax of the docker start command is:

docker start [OPTIONS] CONTAINER [CONTAINER...]

where [OPTIONS] are the various flags that can be used with the command, and [CONTAINER...] is a list of one or more container names or IDs.

Some commonly used options for the docker start command include:

• -a or --attach: Attach STDOUT/STDERR and forward signals to the container. This allows you to view the output or interact with the container directly.
• -i or --interactive: Keep STDIN open even if not attached. This keeps the container running and allows you to provide inputs to the container.

For example, to start a container with the name "my-container", you can use the following command:

docker start my-container

This will start the "my-container" container if it was previously stopped. Once the container is started, it will resume its execution from where it was paused or stopped.

Note that if a container was created with the --restart flag set to "unless-stopped" or similar, it will automatically start when Docker daemon starts. But the docker start command is used to manually start a stopped container.