Add support for Docker as Nova hypervisor
* Add basic support for hypervisor plugins in lib/nova_plugins
* Add lib/nova_plugins/hypervisor-docker to use Docker as a Nova
hypervisor.
* Add tools/install_docker.sh to install the Docker daemon and
registry container, download base image and import
* Configure Nova to use docker plugin
* Add docker exercise and skip unsupported ones
Nova blueprint: new-hypervisor-docker
Change-Id: I9e7065b562dce2ce853def583ab1165886612227
diff --git a/tools/docker/install_docker.sh b/tools/docker/install_docker.sh
new file mode 100755
index 0000000..d659ad1
--- /dev/null
+++ b/tools/docker/install_docker.sh
@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+
+# **install_docker.sh** - Do the initial Docker installation and configuration
+
+# install_docker.sh
+#
+# Install docker package and images
+# * downloads a base busybox image and a glance registry image if necessary
+# * install the images in Docker's image cache
+
+
+# Keep track of the current directory
+SCRIPT_DIR=$(cd $(dirname "$0") && pwd)
+TOP_DIR=$(cd $SCRIPT_DIR/../..; pwd)
+
+# Import common functions
+source $TOP_DIR/functions
+
+# Load local configuration
+source $TOP_DIR/stackrc
+
+FILES=$TOP_DIR/files
+
+# Get our defaults
+source $TOP_DIR/lib/nova_plugins/hypervisor-docker
+
+SERVICE_TIMEOUT=${SERVICE_TIMEOUT:-60}
+
+
+# Install Docker Service
+# ======================
+
+# Stop the auto-repo updates and do it when required here
+NO_UPDATE_REPOS=True
+
+# Set up home repo
+curl https://get.docker.io/gpg | sudo apt-key add -
+install_package python-software-properties && \
+ sudo sh -c "echo deb $DOCKER_APT_REPO docker main > /etc/apt/sources.list.d/docker.list"
+apt_get update
+install_package --force-yes lxc-docker=${DOCKER_PACKAGE_VERSION}
+
+# Start the daemon - restart just in case the package ever auto-starts...
+restart_service docker
+
+echo "Waiting for docker daemon to start..."
+DOCKER_GROUP=$(groups | cut -d' ' -f1)
+CONFIGURE_CMD="while ! /bin/echo -e 'GET /v1.3/version HTTP/1.0\n\n' | socat - unix-connect:$DOCKER_UNIX_SOCKET | grep -q '200 OK'; do
+ # Set the right group on docker unix socket before retrying
+ sudo chgrp $DOCKER_GROUP $DOCKER_UNIX_SOCKET
+ sudo chmod g+rw $DOCKER_UNIX_SOCKET
+ sleep 1
+done"
+if ! timeout $SERVICE_TIMEOUT sh -c "$CONFIGURE_CMD"; then
+ die $LINENO "docker did not start"
+fi
+
+
+# Get Docker image
+if [[ ! -r $FILES/docker-ut.tar.gz ]]; then
+ (cd $FILES; curl -OR $DOCKER_IMAGE)
+fi
+if [[ ! -r $FILES/docker-ut.tar.gz ]]; then
+ die $LINENO "Docker image unavailable"
+fi
+docker import - $DOCKER_IMAGE_NAME <$FILES/docker-ut.tar.gz
+
+# Get Docker registry image
+if [[ ! -r $FILES/docker-registry.tar.gz ]]; then
+ (cd $FILES; curl -OR $DOCKER_REGISTRY_IMAGE)
+fi
+if [[ ! -r $FILES/docker-registry.tar.gz ]]; then
+ die $LINENO "Docker registry image unavailable"
+fi
+docker import - $DOCKER_REGISTRY_IMAGE_NAME <$FILES/docker-registry.tar.gz