hostmount-writeable-overlay.yml

kernel:
  image: linuxkit/kernel:5.4.39
  cmdline: "console=tty0 console=ttyS0 console=ttyAMA0 console=ttysclp0"
init:
  - linuxkit/init:v0.8
  - linuxkit/runc:v0.8
  - linuxkit/containerd:v0.8
  - linuxkit/ca-certificates:v0.8
onboot:
  - name: sysctl
    image: linuxkit/sysctl:v0.8
  - name: dhcpcd
    image: linuxkit/dhcpcd:v0.8
    command: ["/sbin/dhcpcd", "--nobackground", "-f", "/dhcpcd.conf", "-1"]
onshutdown:
  - name: shutdown
    image: busybox:latest
    command: ["/bin/echo", "so long and thanks for all the fish"]
services:
  - name: getty
    image: linuxkit/getty:v0.8
    env:
     - INSECURE=true
    runtime:
      mounts:
        # Makes a writeable (but private and non-persistent) mount of the
        # host etc into the container.
        - type: overlay
          source: overlay
          destination: writeable-host-etc
          options: ["rw", "lowerdir=/etc", "upperdir=/run/hostetc/upper", "workdir=/run/hostetc/work"]
  - name: rngd
    image: linuxkit/rngd:v0.8
  - name: nginx
    image: nginx:1.13.8-alpine
    capabilities:
     - CAP_NET_BIND_SERVICE
     - CAP_CHOWN
     - CAP_SETUID
     - CAP_SETGID
     - CAP_DAC_OVERRIDE
    binds:
     - /etc/resolv.conf:/etc/resolv.conf
trust:
  org:
    - linuxkit
    - library