Adapt website to use g3doc sources and bazel.

This adapts the merged website repository to use the image and bazel
build framework. It explicitly avoids the container_image rules provided
by bazel, opting instead to build with direct docker commands when
necessary.

The relevant build commands are incorporated into the top-level
Makefile.

1 files changed, 68 insertions, 0 deletions

diff --git a/g3doc/user_guide/tutorials/docker.md b/g3doc/user_guide/tutorials/docker.md
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+# WorkPress with Docker
+
+This page shows you how to deploy a sample [WordPress][wordpress] site using
+[Docker][docker].
+
+### Before you begin
+
+[Follow these instructions][docker-install] to install runsc with Docker.
+This document assumes that the runtime name chosen is `runsc`.
+
+### Running WordPress
+
+Now, let's deploy a WordPress site using Docker. WordPress site requires
+two containers: web server in the frontend, MySQL database in the backend.
+
+First, let's define a few environment variables that are shared between both
+containers:
+
+```bash
+export MYSQL_PASSWORD=${YOUR_SECRET_PASSWORD_HERE?}
+export MYSQL_DB=wordpress
+export MYSQL_USER=wordpress
+```
+
+Next, let's start the database container running MySQL and wait until the
+database is initialized:
+
+```bash
+docker run --runtime=runsc --name mysql -d \
+  -e MYSQL_RANDOM_ROOT_PASSWORD=1 \
+  -e MYSQL_PASSWORD="${MYSQL_PASSWORD}" \
+  -e MYSQL_DATABASE="${MYSQL_DB}" \
+  -e MYSQL_USER="${MYSQL_USER}" \
+  mysql:5.7
+
+# Wait until this message appears in the log.
+docker logs mysql |& grep 'port: 3306  MySQL Community Server (GPL)'
+```
+
+Once the database is running, you can start the WordPress frontend. We use the
+`--link` option to connect the frontend to the database, and expose the
+WordPress to port 8080 on the localhost.
+
+```bash
+docker run --runtime=runsc --name wordpress -d \
+  --link mysql:mysql \
+  -p 8080:80 \
+  -e WORDPRESS_DB_HOST=mysql \
+  -e WORDPRESS_DB_USER="${MYSQL_USER}" \
+  -e WORDPRESS_DB_PASSWORD="${MYSQL_PASSWORD}" \
+  -e WORDPRESS_DB_NAME="${MYSQL_DB}" \
+  -e WORDPRESS_TABLE_PREFIX=wp_ \
+  wordpress
+```
+
+Now, you can access the WordPress website pointing your favorite browser to
+<http://localhost:8080>.
+
+Congratulations! You have just deployed a WordPress site using Docker.
+
+### What's next
+
+[Learn how to deploy WordPress with Kubernetes][wordpress-k8s].
+
+[docker]: https://www.docker.com/
+[docker-install]: /docs/user_guide/quick_start/docker/
+[wordpress]: https://wordpress.com/
+[wordpress-k8s]: /docs/tutorials/kubernetes/