224 lines
6.6 KiB
Bash
Executable File
224 lines
6.6 KiB
Bash
Executable File
#!/usr/bin/env bash
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# **boot_from_volume.sh**
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# This script demonstrates how to boot from a volume. It does the following:
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# * Create a bootable volume
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# * Boot a volume-backed instance
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echo "*********************************************************************"
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echo "Begin DevStack Exercise: $0"
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echo "*********************************************************************"
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# This script exits on an error so that errors don't compound and you see
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# only the first error that occurred.
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set -o errexit
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# Print the commands being run so that we can see the command that triggers
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# an error. It is also useful for following allowing as the install occurs.
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set -o xtrace
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# Settings
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# ========
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# Keep track of the current directory
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EXERCISE_DIR=$(cd $(dirname "$0") && pwd)
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TOP_DIR=$(cd $EXERCISE_DIR/..; pwd)
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# Import common functions
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source $TOP_DIR/functions
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# Import configuration
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source $TOP_DIR/openrc
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# Import neutron functions if needed
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if is_service_enabled neutron; then
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source $TOP_DIR/lib/neutron
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fi
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# Import exercise configuration
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source $TOP_DIR/exerciserc
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# If cinder is not enabled we exit with exitcode 55 so that
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# the exercise is skipped
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is_service_enabled cinder || exit 55
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# Also skip if the hypervisor is Docker
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[[ "$VIRT_DRIVER" == "docker" ]] && exit 55
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# Instance type to create
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DEFAULT_INSTANCE_TYPE=${DEFAULT_INSTANCE_TYPE:-m1.tiny}
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# Boot this image, use first AMI image if unset
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DEFAULT_IMAGE_NAME=${DEFAULT_IMAGE_NAME:-ami}
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# Security group name
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SECGROUP=${SECGROUP:-boot_secgroup}
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# Instance and volume names
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VM_NAME=${VM_NAME:-ex-bfv-inst}
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VOL_NAME=${VOL_NAME:-ex-vol-bfv}
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# Launching a server
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# ==================
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# List servers for tenant:
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nova list
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# Images
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# ------
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# List the images available
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glance image-list
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# Grab the id of the image to launch
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IMAGE=$(glance image-list | egrep " $DEFAULT_IMAGE_NAME " | get_field 1)
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die_if_not_set $LINENO IMAGE "Failure getting image $DEFAULT_IMAGE_NAME"
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# Security Groups
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# ---------------
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# List security groups
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nova secgroup-list
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if is_service_enabled n-cell; then
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# Cells does not support security groups, so force the use of "default"
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SECGROUP="default"
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echo "Using the default security group because of Cells."
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else
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# Create a secgroup
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if ! nova secgroup-list | grep -q $SECGROUP; then
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nova secgroup-create $SECGROUP "$SECGROUP description"
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if ! timeout $ASSOCIATE_TIMEOUT sh -c "while ! nova secgroup-list | grep -q $SECGROUP; do sleep 1; done"; then
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echo "Security group not created"
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exit 1
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fi
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fi
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fi
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# Configure Security Group Rules
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if ! nova secgroup-list-rules $SECGROUP | grep -q icmp; then
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nova secgroup-add-rule $SECGROUP icmp -1 -1 0.0.0.0/0
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fi
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if ! nova secgroup-list-rules $SECGROUP | grep -q " tcp .* 22 "; then
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nova secgroup-add-rule $SECGROUP tcp 22 22 0.0.0.0/0
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fi
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# List secgroup rules
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nova secgroup-list-rules $SECGROUP
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# Set up instance
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# ---------------
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# List flavors
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nova flavor-list
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# Select a flavor
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INSTANCE_TYPE=$(nova flavor-list | grep $DEFAULT_INSTANCE_TYPE | get_field 1)
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if [[ -z "$INSTANCE_TYPE" ]]; then
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# grab the first flavor in the list to launch if default doesn't exist
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INSTANCE_TYPE=$(nova flavor-list | head -n 4 | tail -n 1 | get_field 1)
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fi
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# Clean-up from previous runs
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nova delete $VM_NAME || true
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if ! timeout $ACTIVE_TIMEOUT sh -c "while nova show $VM_NAME; do sleep 1; done"; then
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echo "server didn't terminate!"
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exit 1
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fi
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# Setup Keypair
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KEY_NAME=test_key
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KEY_FILE=key.pem
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nova keypair-delete $KEY_NAME || true
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nova keypair-add $KEY_NAME > $KEY_FILE
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chmod 600 $KEY_FILE
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# Set up volume
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# -------------
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# Delete any old volume
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cinder delete $VOL_NAME || true
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if ! timeout $ACTIVE_TIMEOUT sh -c "while cinder list | grep $VOL_NAME; do sleep 1; done"; then
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echo "Volume $VOL_NAME not deleted"
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exit 1
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fi
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# Create the bootable volume
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start_time=$(date +%s)
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cinder create --image-id $IMAGE --display_name=$VOL_NAME --display_description "test bootable volume: $VOL_NAME" $DEFAULT_VOLUME_SIZE || \
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die $LINENO "Failure creating volume $VOL_NAME"
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if ! timeout $ACTIVE_TIMEOUT sh -c "while ! cinder list | grep $VOL_NAME | grep available; do sleep 1; done"; then
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echo "Volume $VOL_NAME not created"
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exit 1
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fi
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end_time=$(date +%s)
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echo "Completed cinder create in $((end_time - start_time)) seconds"
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# Get volume ID
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VOL_ID=$(cinder list | grep $VOL_NAME | get_field 1)
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die_if_not_set $LINENO VOL_ID "Failure retrieving volume ID for $VOL_NAME"
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# Boot instance
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# -------------
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# Boot using the --block_device_mapping param. The format of mapping is:
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# <dev_name>=<id>:<type>:<size(GB)>:<delete_on_terminate>
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# Leaving the middle two fields blank appears to do-the-right-thing
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VM_UUID=$(nova boot --flavor $INSTANCE_TYPE --image $IMAGE --block-device-mapping vda=$VOL_ID --security_groups=$SECGROUP --key_name $KEY_NAME $VM_NAME | grep ' id ' | get_field 2)
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die_if_not_set $LINENO VM_UUID "Failure launching $VM_NAME"
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# Check that the status is active within ACTIVE_TIMEOUT seconds
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if ! timeout $ACTIVE_TIMEOUT sh -c "while ! nova show $VM_UUID | grep status | grep -q ACTIVE; do sleep 1; done"; then
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echo "server didn't become active!"
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exit 1
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fi
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# Get the instance IP
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IP=$(get_instance_ip $VM_UUID $PRIVATE_NETWORK_NAME)
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die_if_not_set $LINENO IP "Failure retrieving IP address"
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# Private IPs can be pinged in single node deployments
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ping_check "$PRIVATE_NETWORK_NAME" $IP $BOOT_TIMEOUT
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# Clean up
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# --------
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# Delete volume backed instance
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nova delete $VM_UUID || die $LINENO "Failure deleting instance $VM_NAME"
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if ! timeout $TERMINATE_TIMEOUT sh -c "while nova list | grep -q $VM_UUID; do sleep 1; done"; then
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echo "Server $VM_NAME not deleted"
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exit 1
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fi
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# Wait for volume to be released
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if ! timeout $ACTIVE_TIMEOUT sh -c "while ! cinder list | grep $VOL_NAME | grep available; do sleep 1; done"; then
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echo "Volume $VOL_NAME not released"
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exit 1
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fi
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# Delete volume
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start_time=$(date +%s)
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cinder delete $VOL_ID || die $LINENO "Failure deleting volume $VOLUME_NAME"
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if ! timeout $ACTIVE_TIMEOUT sh -c "while cinder list | grep $VOL_NAME; do sleep 1; done"; then
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echo "Volume $VOL_NAME not deleted"
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exit 1
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fi
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end_time=$(date +%s)
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echo "Completed cinder delete in $((end_time - start_time)) seconds"
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if [[ $SECGROUP = "default" ]] ; then
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echo "Skipping deleting default security group"
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else
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# Delete secgroup
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nova secgroup-delete $SECGROUP || die $LINENO "Failure deleting security group $SECGROUP"
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fi
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set +o xtrace
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echo "*********************************************************************"
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echo "SUCCESS: End DevStack Exercise: $0"
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echo "*********************************************************************"
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