docs: Add Docker(moby) integration

Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com>

docs/INSTALL.md

@@ -119,3 +119,58 @@ We assume that you are using CRI-O newer than https://github.com/cri-o/cri-o/pul
   systemctl enable --now stargz-store
   systemctl restart cri-o # if you are using CRI-O
   ```
+
+## Install Stargz Snapshotter for Docker(Moby) with Systemd
+
+- Docker(Moby) newer than [`5c1d6c957b97321c8577e10ddbffe6e01981617a`](https://github.com/moby/moby/commit/5c1d6c957b97321c8577e10ddbffe6e01981617a) is needed on your host.
+
+- Download stargz-snapshotter release tarball from [the release page](https://github.com/containerd/stargz-snapshotter/releases).
+
+- Enable `containerd-snapshotter` feature and `stargz` snapshotter in Docker. Add the following to docker's configuration file (typically: /etc/docker/daemon.json).
+  ```json
+  {
+    "features": {
+      "containerd-snapshotter": true
+    },
+    "storage-driver": "stargz"
+  }
+  ```
+
+- Enable stargz snapshotter in containerd. Add the following configuration to containerd's configuration file (typically: /etc/containerd/config.toml).
+  ```toml
+  version = 2
+
+  # Plug stargz snapshotter into containerd
+  [proxy_plugins]
+    [proxy_plugins.stargz]
+      type = "snapshot"
+      address = "/run/containerd-stargz-grpc/containerd-stargz-grpc.sock"
+  ```
+
+- Install fuse
+
+  ###### centos
+  ```
+  # centos 7
+  yum install fuse
+  # centos 8
+  dnf install fuse
+
+  modprobe fuse
+  ```
+
+  ###### ubuntu
+
+  ```
+  apt-get install fuse
+  modprobe fuse
+  ```
+
+- Start stargz-snapshotter and restart containerd and docker
+  ```
+  tar -C /usr/local/bin -xvf stargz-snapshotter-${version}-linux-${arch}.tar.gz containerd-stargz-grpc ctr-remote
+  wget -O /etc/systemd/system/stargz-snapshotter.service https://raw.githubusercontent.com/containerd/stargz-snapshotter/${version}/script/config/etc/systemd/system/stargz-snapshotter.service
+  systemctl enable --now stargz-snapshotter
+  systemctl restart containerd
+  systemctl restart docker
+  ```

docs/integration.md

@@ -91,6 +91,13 @@ See [`./INSTALL.md`](./INSTALL.md#install-stargz-store-for-cri-opodman-with-syst
 
 ### Docker
 
+#### Moby
+
+Moby supports lazy pulling of eStargz since [`5c1d6c957b97321c8577e10ddbffe6e01981617a`](https://github.com/moby/moby/commit/5c1d6c957b97321c8577e10ddbffe6e01981617a) .
+See [`./INSTALL.md`](./INSTALL.md#install-stargz-snapshotter-for-dockermoby-with-systemd) for details.
+
+#### Docker Desktop
+
 Docker Desktop 4.12.0 "Containerd Image Store (Beta)" uses stargz-snapshotter.
 Refer to [Docker documentation](https://docs.docker.com/desktop/containerd/).