Nerdctl

Dagger can be used with any OCI-compatible container runtime, including nerdctl.

How it works

By default, Dagger tries to invoke the docker executable. Since nerdctl is CLI-compatible with Docker, it can be used as a drop-in replacement. This is as simple as creating a symbolic link to the nerdctl executable in your system path and naming it docker.

Prerequisites

• nerdctl installed and running on the host system in rootless mode.

Example

• To use nerdctl with Dagger, create a symbolic link as below:

  sudo ln -s $(which nerdctl) /usr/local/bin/docker

• To use nerdctl with Dagger via lima, create the following shell script at /usr/local/bin/nerdctl:

  #!/bin/sh
  lima nerdctl "$@"

  Then, create a symbolic link to the shell script and name it docker:

  sudo ln -s /usr/local/bin/nerdctl /usr/local/bin/docker

Resources

If you have any questions about additional ways to use nerdctl with Dagger, join our Discord and ask your questions in our help channel.

About nerdctl

nerdctl is a Docker-compatible tool to manage and run containers.