Add cloud deployment script for AWS

cloud/ubuntu.sh

@@ -0,0 +1,44 @@
+#! /bin/bash -e
+# Provision an AWS cloud instance with tutor.
+# Run with: curl -sSL https://raw.githubusercontent.com/regisb/tutor/cloud/cloud/ubuntu.sh | sudo bash -e
+
+export USER=ubuntu
+export DEBIAN_FRONTEND=noninteractive 
+
+echo "=============== Installing system dependencies"
+apt update \
+    && apt upgrade -y \
+    && apt install -y \
+        apt-transport-https \
+        ca-certificates \
+        curl \
+        gnupg-agent \
+        software-properties-common \
+        supervisor
+
+echo "=============== Installing docker"
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | apt-key add -
+add-apt-repository \
+   "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
+   $(lsb_release -cs) \
+   stable"
+apt update
+apt install -y docker-ce docker-ce-cli containerd.io
+docker run hello-world
+usermod -aG docker $USER
+
+echo "=============== Installing docker-compose"
+curl -L "https://github.com/docker/compose/releases/download/1.23.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
+chmod +x /usr/local/bin/docker-compose
+
+echo "=============== Installing tutor"
+curl -L "https://github.com/regisb/tutor/releases/download/v3.0.4/tutor-linux" -o /usr/local/bin/tutor
+chmod +x /usr/local/bin/tutor
+
+echo "=============== Configuring supervisor"
+echo "[program:tutor]
+command=/usr/local/bin/tutor webui start
+environment=HOME=/home/$USER
+autorestart=true
+user=$USER" > /etc/supervisor/conf.d/tutor.conf
+supervisorctl update

tutor/images.py

@@ -40,7 +40,8 @@ def download(namespace, version, image):
 @click.command(
     short_help="Build docker images",
     help=("""Build the docker images necessary for an Open edX platform.
-          The images will be tagged as {namespace}/{image}:{version}."""))
+          The images will be tagged as {namespace}/{image}:{version}.""")
+)
 @opts.root
 @option_namespace
 @option_version
@@ -63,6 +64,18 @@ def build(root, namespace, version, image, build_arg):
             ]
         utils.docker(*command)
 
+@click.command(
+    short_help="Pull images from hub.docker.com",
+)
+@option_namespace
+@option_version
+@argument_image
+def pull(namespace, version, image):
+    for image in image_list(image):
+        tag = get_tag(namespace, image, version)
+        click.echo(fmt.info("Pulling image {}".format(tag)))
+        utils.execute("docker", "pull", tag)
+
 @click.command(
     short_help="Push images to hub.docker.com",
 )