#!/usr/bin/env bash
 

 # **volumes.sh**
 

 # Test cinder volumes with the ``cinder`` command from ``python-cinderclient``

 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 quantum functions if needed
 if is_service_enabled quantum; then
     source $TOP_DIR/lib/quantum
 fi
 

 # Import exercise configuration
 source $TOP_DIR/exerciserc

 # If cinder is not enabled we exit with exitcode 55 which mean

 # exercise is skipped.

 is_service_enabled cinder || exit 55

 # 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}
 

 # Security group name
 SECGROUP=${SECGROUP:-vol_secgroup}
 

 # Instance and volume names
 VM_NAME=${VM_NAME:-ex-vol-inst}
 VOL_NAME="ex-vol-$(openssl rand -hex 4)"
 

 # Launching a server
 # ==================
 
 # List servers for tenant:
 nova list
 
 # Images
 # ------
 

 # List the images available

 glance image-list

 # Grab the id of the image to launch

 IMAGE=$(glance image-list | egrep " $DEFAULT_IMAGE_NAME " | get_field 1)

 die_if_not_set $LINENO IMAGE "Failure getting image $DEFAULT_IMAGE_NAME"

 # Security Groups
 # ---------------
 

 # List security groups

 nova secgroup-list
 
 # Create a secgroup
 if ! nova secgroup-list | grep -q $SECGROUP; then
     nova secgroup-create $SECGROUP "$SECGROUP description"
     if ! timeout $ASSOCIATE_TIMEOUT sh -c "while ! nova secgroup-list | grep -q $SECGROUP; do sleep 1; done"; then
         echo "Security group not created"
         exit 1
     fi
 fi
 
 # Configure Security Group Rules

 if ! nova secgroup-list-rules $SECGROUP | grep -q icmp; then
     nova secgroup-add-rule $SECGROUP icmp -1 -1 0.0.0.0/0
 fi
 if ! nova secgroup-list-rules $SECGROUP | grep -q " tcp .* 22 "; then
     nova secgroup-add-rule $SECGROUP tcp 22 22 0.0.0.0/0
 fi

 # List secgroup rules
 nova secgroup-list-rules $SECGROUP
 
 # Set up instance
 # ---------------

 # List flavors

 nova flavor-list
 

 # 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 $IMAGE --security_groups=$SECGROUP $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

 
 # Volumes
 # -------
 
 # Verify it doesn't exist

 if [[ -n $(cinder list | grep $VOL_NAME | head -1 | get_field 2) ]]; then

     die $LINENO "Volume $VOL_NAME already exists"

 fi
 
 # Create a new volume

 start_time=$(date +%s)
 cinder create --display_name $VOL_NAME --display_description "test volume: $VOL_NAME" $DEFAULT_VOLUME_SIZE || \

     die $LINENO "Failure creating volume $VOL_NAME"

 if ! timeout $ACTIVE_TIMEOUT sh -c "while ! cinder list | grep $VOL_NAME | grep available; do sleep 1; done"; then

     die $LINENO "Volume $VOL_NAME not created"

 fi

 end_time=$(date +%s)

 echo "Completed cinder create in $((end_time - start_time)) seconds"

 
 # Get volume ID

 VOL_ID=$(cinder list | grep $VOL_NAME | head -1 | get_field 1)

 die_if_not_set $LINENO VOL_ID "Failure retrieving volume ID for $VOL_NAME"

 
 # Attach to server
 DEVICE=/dev/vdb

 start_time=$(date +%s)

 nova volume-attach $VM_UUID $VOL_ID $DEVICE || \

     die $LINENO "Failure attaching volume $VOL_NAME to $VM_NAME"

 if ! timeout $ACTIVE_TIMEOUT sh -c "while ! cinder list | grep $VOL_NAME | grep in-use; do sleep 1; done"; then

     die $LINENO "Volume $VOL_NAME not attached to $VM_NAME"

 fi

 end_time=$(date +%s)

 echo "Completed volume-attach in $((end_time - start_time)) seconds"

 VOL_ATTACH=$(cinder list | grep $VOL_NAME | head -1 | get_field -1)

 die_if_not_set $LINENO VOL_ATTACH "Failure retrieving $VOL_NAME status"

 if [[ "$VOL_ATTACH" != $VM_UUID ]]; then

     die $LINENO "Volume not attached to correct instance"

 fi
 

 # Clean up
 # --------
 

 # Detach volume

 start_time=$(date +%s)

 nova volume-detach $VM_UUID $VOL_ID || die $LINENO "Failure detaching volume $VOL_NAME from $VM_NAME"

 if ! timeout $ACTIVE_TIMEOUT sh -c "while ! cinder list | grep $VOL_NAME | grep available; do sleep 1; done"; then

     die $LINENO "Volume $VOL_NAME not detached from $VM_NAME"

 fi

 end_time=$(date +%s)

 echo "Completed volume-detach in $((end_time - start_time)) seconds"

 
 # Delete volume

 start_time=$(date +%s)

 cinder delete $VOL_ID || die $LINENO "Failure deleting volume $VOL_NAME"

 if ! timeout $ACTIVE_TIMEOUT sh -c "while cinder list | grep $VOL_NAME; do sleep 1; done"; then

     die $LINENO "Volume $VOL_NAME not deleted"

 fi

 end_time=$(date +%s)

 echo "Completed cinder delete in $((end_time - start_time)) seconds"

 # 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
 

 # Delete secgroup

 nova secgroup-delete $SECGROUP || die $LINENO "Failure deleting security group $SECGROUP"

 
 set +o xtrace

 echo "*********************************************************************"
 echo "SUCCESS: End DevStack Exercise: $0"
 echo "*********************************************************************"