devstack/exercises/docker.sh
Dean Troyer 2aa2a89cdb 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
2013-08-28 22:36:48 -05:00

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#!/usr/bin/env bash
# **docker**
# Test Docker hypervisor
echo "*********************************************************************"
echo "Begin DevStack Exercise: $0"
echo "*********************************************************************"
# This script exits on an error so that errors don't compound and you see
# only the first error that occurred.
set -o errexit
# Print the commands being run so that we can see the command that triggers
# an error. It is also useful for following allowing as the install occurs.
set -o xtrace
# Settings
# ========
# Keep track of the current directory
EXERCISE_DIR=$(cd $(dirname "$0") && pwd)
TOP_DIR=$(cd $EXERCISE_DIR/..; pwd)
# Import common functions
source $TOP_DIR/functions
# Import configuration
source $TOP_DIR/openrc
# Import exercise configuration
source $TOP_DIR/exerciserc
# Skip if the hypervisor is not Docker
[[ "$VIRT_DRIVER" == "docker" ]] || exit 55
# Import docker functions and declarations
source $TOP_DIR/lib/nova_plugins/hypervisor-docker
# Image and flavor are ignored but the CLI requires them...
# Instance type to create
DEFAULT_INSTANCE_TYPE=${DEFAULT_INSTANCE_TYPE:-m1.tiny}
# Boot this image, use first AMI image if unset
DEFAULT_IMAGE_NAME=${DEFAULT_IMAGE_NAME:-ami}
# Instance name
VM_NAME=ex-docker
# Launching a server
# ==================
# Grab the id of the image to launch
IMAGE=$(glance image-list | egrep " $DOCKER_IMAGE_NAME:latest " | get_field 1)
die_if_not_set $LINENO IMAGE "Failure getting image $DOCKER_IMAGE_NAME"
# Select a flavor
INSTANCE_TYPE=$(nova flavor-list | grep $DEFAULT_INSTANCE_TYPE | get_field 1)
if [[ -z "$INSTANCE_TYPE" ]]; then
# grab the first flavor in the list to launch if default doesn't exist
INSTANCE_TYPE=$(nova flavor-list | head -n 4 | tail -n 1 | get_field 1)
fi
# Clean-up from previous runs
nova delete $VM_NAME || true
if ! timeout $ACTIVE_TIMEOUT sh -c "while nova show $VM_NAME; do sleep 1; done"; then
die $LINENO "server didn't terminate!"
fi
# Boot instance
# -------------
VM_UUID=$(nova boot --flavor $INSTANCE_TYPE --image $IMAGE $VM_NAME | grep ' id ' | get_field 2)
die_if_not_set $LINENO VM_UUID "Failure launching $VM_NAME"
# Check that the status is active within ACTIVE_TIMEOUT seconds
if ! timeout $ACTIVE_TIMEOUT sh -c "while ! nova show $VM_UUID | grep status | grep -q ACTIVE; do sleep 1; done"; then
die $LINENO "server didn't become active!"
fi
# Get the instance IP
IP=$(nova show $VM_UUID | grep "$PRIVATE_NETWORK_NAME" | get_field 2)
die_if_not_set $LINENO IP "Failure retrieving IP address"
# Private IPs can be pinged in single node deployments
ping_check "$PRIVATE_NETWORK_NAME" $IP $BOOT_TIMEOUT
# Clean up
# --------
# Delete instance
nova delete $VM_UUID || die $LINENO "Failure deleting instance $VM_NAME"
if ! timeout $TERMINATE_TIMEOUT sh -c "while nova list | grep -q $VM_UUID; do sleep 1; done"; then
die $LINENO "Server $VM_NAME not deleted"
fi
set +o xtrace
echo "*********************************************************************"
echo "SUCCESS: End DevStack Exercise: $0"
echo "*********************************************************************"