Add a new docs directory. refs #109

Add a new 'docs' directory for that can be built on in the future. Docs are
divided into a 'user guide', 'contributor guide', and 'architecture guide'.
This is currently a work in progress.

PiperOrigin-RevId: 223326836
Change-Id: I78d08d6a89d686e92d3415d4269463e8e74bddee

1 files changed, 41 insertions, 0 deletions

diff --git a/docs/user_guide/docker.md b/docs/user_guide/docker.md
new file mode 100644
index 000000000..fefb5f993
--- /dev/null
+++ b/docs/user_guide/docker.md
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+# Run gVisor with Docker
+
+## Configuring Docker
+
+Next, configure Docker to use `runsc` by adding a runtime entry to your Docker
+configuration (`/etc/docker/daemon.json`). You may have to create this file if
+it does not exist. Also, some Docker versions also require you to [specify the
+`storage-driver` field][docker-storage-driver].
+
+In the end, the file should look something like:
+
+```
+{
+    "runtimes": {
+        "runsc": {
+            "path": "/usr/local/bin/runsc"
+        }
+    }
+}
+```
+
+You must restart the Docker daemon after making changes to this file, typically
+this is done via:
+
+```
+sudo systemctl restart docker
+```
+
+## Running a container
+
+Now run your container in `runsc`:
+
+```
+docker run --runtime=runsc hello-world
+```
+
+You can also run a terminal to explore the container.
+
+```
+docker run --runtime=runsc -it ubuntu /bin/bash
+```