k3s.yaml

# Deploy kubernetes via k3s (which installs a bundled containerd).
# $ limactl start ./k3s.yaml
# $ limactl shell k3s kubectl
#
# It can be accessed from the host by exporting the kubeconfig file;
# the ports are already forwarded automatically by lima:
#
# $ export KUBECONFIG=$(limactl list k3s --format 'unix://{{.Dir}}/copied-from-guest/kubeconfig.yaml')
# $ kubectl get no
# NAME       STATUS   ROLES                  AGE   VERSION
# lima-k3s   Ready    control-plane,master   69s   v1.21.1+k3s1
#
# This template requires Lima v0.7.0 or later.

images:
# Try to use release-yyyyMMdd image if available. Note that release-yyyyMMdd will be removed after several months.
- location: "https://cloud-images.ubuntu.com/releases/22.04/release-20240126/ubuntu-22.04-server-cloudimg-amd64.img"
  arch: "x86_64"
  digest: "sha256:9f8a0d84b81a1d481aafca2337cb9f0c1fdf697239ac488177cf29c97d706c25"
- location: "https://cloud-images.ubuntu.com/releases/22.04/release-20240126/ubuntu-22.04-server-cloudimg-arm64.img"
  arch: "aarch64"
  digest: "sha256:dddfb1741f16ea9eaaaeb731c5c67dd2cb38a4768b2007954cb9babfe1008e0d"
# Fallback to the latest release image.
# Hint: run `limactl prune` to invalidate the cache
- location: "https://cloud-images.ubuntu.com/releases/22.04/release/ubuntu-22.04-server-cloudimg-amd64.img"
  arch: "x86_64"
- location: "https://cloud-images.ubuntu.com/releases/22.04/release/ubuntu-22.04-server-cloudimg-arm64.img"
  arch: "aarch64"

# Mounts are disabled in this template, but can be enabled optionally.
mounts: []

# containerd is managed by k3s, not by Lima, so the values are set to false here.
containerd:
  system: false
  user: false

provision:
- mode: system
  script: |
    #!/bin/sh
    if [ ! -d /var/lib/rancher/k3s ]; then
            curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="server --write-kubeconfig-mode 644" sh -
    fi
probes:
- script: |
    #!/bin/bash
    set -eux -o pipefail
    if ! timeout 30s bash -c "until test -f /etc/rancher/k3s/k3s.yaml; do sleep 3; done"; then
            echo >&2 "k3s is not running yet"
            exit 1
    fi
  hint: |
    The k3s kubeconfig file has not yet been created.
    Run "limactl shell k3s sudo journalctl -u k3s" to check the log.
    If that is still empty, check the bottom of the log at "/var/log/cloud-init-output.log".
copyToHost:
- guest: "/etc/rancher/k3s/k3s.yaml"
  host: "{{.Dir}}/copied-from-guest/kubeconfig.yaml"
  deleteOnStop: true
message: |
  To run `kubectl` on the host (assumes kubectl is installed), run the following commands:
  ------
  export KUBECONFIG="{{.Dir}}/copied-from-guest/kubeconfig.yaml"
  kubectl ...
  ------