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Colima - container runtimes on macOS (and Linux) with minimal setup.

Go Integration

Demonstration

Features

  • Intel and M1 Macs support
  • Simple CLI interface
  • Docker and Containerd support
  • Port Forwarding
  • Volume mounts
  • Kubernetes

Getting Started

Installation

Colima is available on Homebrew, MacPorts, and Nix. Check here for other installation options.

# Homebrew
brew install colima

# MacPorts
sudo port install colima

# Nix
nix-env -iA nixpkgs.colima

Or stay on the bleeding edge (only Homebrew)

brew install --HEAD colima

Upgrading

If upgrading from v0.3.4 or lower, it is required to start afresh by deleting existing instance.

colima delete # delete existing instance
colima start

Usage

Start Colima with defaults

colima start

For more usage options

colima --help
colima start --help

Or use a config file

colima start --edit

Runtimes

On initial startup, Colima initiates with a user specified runtime that defaults to Docker.

Docker

Docker client is required for Docker runtime. Installable with brew brew install docker.

You can use the docker client on macOS after colima start with no additional setup.

Containerd

colima start --runtime containerd starts and setup Containerd. You can use colima nerdctl to interact with Containerd using nerdctl.

It is recommended to run colima nerdctl install to install nerdctl alias script in $PATH.

Kubernetes

kubectl is required for Kubernetes. Installable with brew install kubectl.

To enable Kubernetes, start Colima with --kubernetes flag.

colima start --kubernetes

Interacting with Image Registry

For Docker runtime, images built or pulled with Docker are accessible to Kubernetes.

For Containerd runtime, images built or pulled in the k8s.io namespace are accessible to Kubernetes.

Customizing the VM

The default VM created by Colima has 2 CPUs, 2GiB memory and 60GiB storage.

The VM can be customized either by passing additional flags to colima start. e.g. --cpu, --memory, --disk, --runtime. Or by editing the config file with colima start --edit.

NOTE: disk size cannot be changed after the VM is created.

Customization Examples

  • create VM with 1CPU, 2GiB memory and 10GiB storage.

    colima start --cpu 1 --memory 2 --disk 10

  • modify an existing VM to 4CPUs and 8GiB memory.

    colima stop
colima start --cpu 4 --memory 8

Project Goal

To provide container runtimes on macOS with minimal setup.

Project Status

⚠️ The project is still in active early stage development and updates may introduce breaking changes.

What is with the name?

Colima means Containers in Lima.

Since Lima is aka Linux on Mac. By transitivity, Colima can also mean Containers on Linux on Mac.

FAQs

Check here for Frequently Asked Questions.

Help Wanted

  • Documentation (wiki pages)

License

MIT

Sponsoring the Project

If you (or your company) are benefiting from the project and would like to support the contributors, kindly support the project.

Buy Me A Coffee

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Container runtimes on macOS (and Linux) with minimal setup

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Readme

License

MIT license
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