# This is an example for building the open source components of Docker for Mac
kernel:
  image: linuxkit/kernel:4.19.27
  cmdline: "console=ttyS0 page_poison=1"
init:
  - linuxkit/vpnkit-expose-port:b5f279abaa0386efeb3c03f46771609ff7c25bc3 # install vpnkit-expose-port and vpnkit-iptables-wrapper on host
  - linuxkit/init:005807f5c6a74e23f485a6d1657818bdccb70cd0
  - linuxkit/runc:606971451ea29b4238029804ca638f9f85caf5af
  - linuxkit/containerd:6e6841be5ad15c30752d81d121b247fa3ae08c97
  - linuxkit/ca-certificates:906c46a26fd2df271bf64c0259bf2267f7593213
onboot:
  # support metadata for optional config in /run/config
  - name: metadata
    image: linuxkit/metadata:566864a2e22e318c478ab284f5675da7a7a12f38
  - name: sysctl
    image: linuxkit/sysctl:713e535f2d4e4c74aba50cc7f73e3826b2dd3857
  - name: sysfs
    image: linuxkit/sysfs:21a2071205e7060ed76656960eda5434b2fdcd91
  - name: binfmt
    image: linuxkit/binfmt:1d336b31146564a799673ff1a869c9717c2a86e0
  # Format and mount the disk image in /var/lib/docker
  - name: format
    image: linuxkit/format:ada5fd97592c33399140f5f93f517c02f55edb14
  - name: mount
    image: linuxkit/mount:019bc551972cf2d136b443d70b4bf94c54d0d1fe
    command: ["/usr/bin/mountie", "/var/lib"]
  # make a swap file on the mounted disk
  - name: swap
    image: linuxkit/swap:0b230ed5cbf5f920935f371dfa9e34d838d863fe
    command: ["/swap.sh", "--path", "/var/lib/swap", "--size", "1024M"]
  # mount-vpnkit mounts the 9p share used by vpnkit to coordinate port forwarding
  - name: mount-vpnkit
    image: alpine:3.9
    binds:
        - /var/:/host_var:rbind,rshared
    capabilities:
        - CAP_SYS_ADMIN
    rootfsPropagation: shared
    command: ["sh", "-c", "mkdir -p /host_var/vpnkit/port && mount -v -t 9p -o trans=virtio,dfltuid=1001,dfltgid=50,version=9p2000 port /host_var/vpnkit"]
  # move logs to the mounted disk (this is a temporary fix until we can limit the log sizes)
  - name: move-logs
    image: alpine:3.9
    binds:
        - /var:/host_var
    command: ["sh", "-c", "mv -v /host_var/log /host_var/lib && ln -vs /var/lib/log /host_var/log"]
  - name: dhcpcd
    image: linuxkit/dhcpcd:85738d3d2f152a7879e17a61444f7714b858c2ee
    command: ["/sbin/dhcpcd", "--nobackground", "-f", "/dhcpcd.conf", "-1"]
services:
  # Enable acpi to shutdown on power events
  - name: acpid
    image: linuxkit/acpid:c4559f5fdce997de5dedc4c750c7a0d1044b3425
  # Enable getty for easier debugging
  - name: getty
    image: linuxkit/getty:01993189b8c583dc91cbbc7d4be131832c0fc205
    env:
        - INSECURE=true
  # Run ntpd to keep time synchronised in the VM
  - name: ntpd
    image: linuxkit/openntpd:7f48912e995d0eb6d021b5c0d2d2a062b3b2e4d3
  # VSOCK to unix domain socket forwarding. Forwards guest /var/run/docker.sock
  # to a socket on the host.
  - name: vsudd
    image: linuxkit/vsudd:ad3014aba09dd15a82fae6e0f18c482810490c9a
    binds:
        - /var/run:/var/run
    command: ["/vsudd", "-inport", "2376:unix:/var/run/docker.sock"]
  # vpnkit-forwarder forwards network traffic to/from the host via VSOCK port 62373. 
  # It needs access to the vpnkit 9P coordination share 
  - name: vpnkit-forwarder
    image: linuxkit/vpnkit-forwarder:47a75f790250c01d18d0463de9d9943dab50f027
    binds:
        - /var/vpnkit:/port
    net: host
    command: ["/vpnkit-forwarder", "-vsockPort", "62373"]
  # Monitor for image deletes and invoke a TRIM on the container filesystem
  - name: trim-after-delete
    image: linuxkit/trim-after-delete:05a7b353e54371d396655610afbd5d0b830e16ac
  # When the host resumes from sleep, force a clock resync
  - name: host-timesync-daemon
    image: linuxkit/host-timesync-daemon:dfe46e1f3227ac10d98655d95b2061283afc2f3d
  # Run dockerd with the vpnkit userland proxy from the vpnkit-forwarder container.
  # Bind mounts /var/run to allow vsudd to connect to docker.sock, /var/vpnkit
  # for vpnkit coordination and /run/config/docker for the configuration file.
  - name: docker-dfm
    image: docker:18.06.0-ce-dind
    capabilities:
     - all
    net: host
    mounts:
     - type: cgroup
       options: ["rw","nosuid","noexec","nodev","relatime"]
    binds:
     - /etc/resolv.conf:/etc/resolv.conf
     - /var/lib/docker:/var/lib/docker
     - /lib/modules:/lib/modules
     - /var/vpnkit:/port # vpnkit control 9p mount
     - /var/run:/var/run
     - /run/config/docker:/var/config/docker
     - /usr/bin/vpnkit-expose-port:/usr/bin/vpnkit-expose-port # userland proxy
     - /usr/bin/vpnkit-iptables-wrapper:/usr/bin/iptables # iptables wrapper
    command: [ "/usr/local/bin/docker-init", "/usr/local/bin/dockerd", "--",
            "--config-file", "/var/config/docker/daemon.json",
            "--swarm-default-advertise-addr=eth0",
            "--userland-proxy-path", "/usr/bin/vpnkit-expose-port",
            "--storage-driver", "overlay2" ]
    runtime:
      mkdir: ["/var/lib/docker"]

trust:
    org:
        - linuxkit
        - library