lima-vm setting: Rootless docker with both TCP/UNIX Socket connection (I personally use this setting for buildpacks)

lima_docker_rootless.yaml

# Example to use Docker instead of containerd & nerdctl
# $ limactl start ./lima_docker_rootless.yaml
# $ limactl shell lima_docker_rootless docker run -it -v $HOME:$HOME --rm alpine

# To run `docker` on the host (assumes docker-cli is installed):
# $ export DOCKER_HOST=unix://$HOME/docker.sock
# $ docker ...

# This example requires Lima v0.7.3 or later
# CPUs: if you see performance issues, try limiting cpus to 1.
# Default: 4
cpus: 4
# Memory size
# Default: "4GiB"
memory: "10GiB"
# Disk size
# Default: "100GiB"
disk: "100GiB"

images:
  # Hint: run `limactl prune` to invalidate the "current" cache
  - location: "https://cloud-images.ubuntu.com/impish/current/impish-server-cloudimg-amd64.img"
    arch: "x86_64"
  - location: "https://cloud-images.ubuntu.com/impish/current/impish-server-cloudimg-arm64.img"
    arch: "aarch64"
mounts:
#  - location: "~/repos"
#    writable: true
  - location: "/tmp/lima"
    writable: true
ssh:
  localPort: 60022
  # Load ~/.ssh/*.pub in addition to $LIMA_HOME/_config/user.pub , for allowing DOCKER_HOST=ssh:// .
  # This option is enabled by default.
  # If you have an insecure key under ~/.ssh, do not use this option.
  loadDotSSHPubKeys: true
# containerd is managed by Docker, not by Lima, so the values are set to false here.
containerd:
  system: false
  user: false
provision:
  - mode: system
    script: |
      #!/bin/bash
      set -eux -o pipefail
      command -v docker >/dev/null 2>&1 && exit 0
      export DEBIAN_FRONTEND=noninteractive
      curl -fsSL https://get.docker.com | sh
      # NOTE: you may remove the lines below, if you prefer to use rootful docker, not rootless
      systemctl disable --now docker
      apt-get install -y uidmap dbus-user-session
  - mode: user
    script: |
      #!/bin/bash
      set -eux -o pipefail
      systemctl --user start dbus
      dockerd-rootless-setuptool.sh install
      docker context use rootless
  - mode: system
    script: |
      #!/bin/bash
      set -eux -o pipefail
      sudo cat <<__EOF__ >/etc/docker/daemon.json
      {"hosts": ["tcp://127.0.0.1:2375", "unix:///var/run/docker.sock"]}
      __EOF__
      sudo mkdir -p /etc/systemd/system/docker.service.d
      sudo cat <<__EOF__ >/etc/systemd/system/docker.service.d/override.conf
      [Service]
      ExecStart=
      ExecStart=/usr/bin/dockerd
      __EOF__
      sudo systemctl daemon-reload
      sudo systemctl restart docker.service
probes:
  - script: |
      #!/bin/bash
      set -eux -o pipefail
      if ! timeout 30s bash -c "until command -v docker >/dev/null 2>&1; do sleep 3; done"; then
        echo >&2 "docker is not installed yet"
        exit 1
      fi
      if ! timeout 30s bash -c "until pgrep rootlesskit; do sleep 3; done"; then
        echo >&2 "rootlesskit (used by rootless docker) is not running"
        exit 1
      fi
    hint: See "/var/log/cloud-init-output.log". in the guest
portForwards:
  - guestSocket: "/run/user/{{.UID}}/docker.sock"
    hostSocket: "{{.Home}}/docker.sock"