@@ -67,7 +67,10 @@ exit_if_aggregate_present() {

 exit_if_aggregate_present $AGGREGATE_NAME

 AGGREGATE_ID=$(nova aggregate-create $AGGREGATE_NAME $AGGREGATE_A_ZONE | grep " $AGGREGATE_NAME " | get_field 1)

+die_if_not_set $LINENO AGGREGATE_ID "Failure creating AGGREGATE_ID for $AGGREGATE_NAME $AGGREGATE_A_ZONE"

+

 AGGREGATE2_ID=$(nova aggregate-create $AGGREGATE2_NAME $AGGREGATE_A_ZONE | grep " $AGGREGATE2_NAME " | get_field 1)

+die_if_not_set $LINENO AGGREGATE2_ID "Fail creating AGGREGATE2_ID for $AGGREGATE2_NAME $AGGREGATE_A_ZONE"

 # check aggregate created

 nova aggregate-list | grep -q " $AGGREGATE_NAME " || die $LINENO "Aggregate $AGGREGATE_NAME not created"

@@ -114,6 +114,7 @@ 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)

+    die_if_not_set $LINENO INSTANCE_TYPE "Failure retrieving INSTANCE_TYPE"

 fi

 # Clean-up from previous runs

@@ -139,24 +139,28 @@ function foreach_tenant_net {

 function get_image_id {

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

+    die_if_not_set $LINENO IMAGE_ID "Failure retrieving IMAGE_ID"

     echo "$IMAGE_ID"

 }

 function get_tenant_id {

     local TENANT_NAME=$1

     local TENANT_ID=`keystone tenant-list | grep " $TENANT_NAME " | head -n 1 | get_field 1`

+    die_if_not_set $LINENO TENANT_ID "Failure retrieving TENANT_ID for $TENANT_NAME"

     echo "$TENANT_ID"

 }

 function get_user_id {

     local USER_NAME=$1

     local USER_ID=`keystone user-list | grep $USER_NAME | awk '{print $2}'`

+    die_if_not_set $LINENO USER_ID "Failure retrieving USER_ID for $USER_NAME"

     echo "$USER_ID"

 }

 function get_role_id {

     local ROLE_NAME=$1

     local ROLE_ID=`keystone role-list | grep $ROLE_NAME | awk '{print $2}'`

+    die_if_not_set $LINENO ROLE_ID "Failure retrieving ROLE_ID for $ROLE_NAME"

     echo "$ROLE_ID"

 }

@@ -169,6 +173,7 @@ function get_network_id {

 function get_flavor_id {

     local INSTANCE_TYPE=$1

     local FLAVOR_ID=`nova flavor-list | grep $INSTANCE_TYPE | awk '{print $2}'`

+    die_if_not_set $LINENO FLAVOR_ID "Failure retrieving FLAVOR_ID for $INSTANCE_TYPE"

     echo "$FLAVOR_ID"

 }

@@ -234,6 +239,7 @@ function create_network {

     local TENANT_ID=$(get_tenant_id $TENANT)

     source $TOP_DIR/openrc $TENANT $TENANT

     local NET_ID=$(neutron net-create --tenant_id $TENANT_ID $NET_NAME $EXTRA| grep ' id ' | awk '{print $4}' )

+    die_if_not_set $LINENO NET_ID "Failure creating NET_ID for $TENANT_ID $NET_NAME $EXTRA"

     neutron subnet-create --ip_version 4 --tenant_id $TENANT_ID --gateway $GATEWAY $NET_ID $CIDR

     neutron-debug probe-create --device-owner compute $NET_ID

     source $TOP_DIR/openrc demo demo

@@ -56,6 +56,7 @@ done

 # Check to make sure rules were added

 SEC_GROUP_RULES=( $(nova secgroup-list-rules $SEC_GROUP_NAME | grep -v \- | grep -v 'Source Group' | cut -d '|' -f3 | tr -d ' ') )

+die_if_not_set $LINENO SEC_GROUP_RULES "Failure retrieving SEC_GROUP_RULES for $SEC_GROUP_NAME"

 for i in "${RULES_TO_ADD[@]}"; do

     skip=

     for j in "${SEC_GROUP_RULES[@]}"; do

@@ -118,6 +118,7 @@ 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)

+    die_if_not_set $LINENO INSTANCE_TYPE "Failure retrieving INSTANCE_TYPE"

 fi

 # Clean-up from previous runs

@@ -346,6 +346,7 @@ function create_neutron_accounts() {

 function create_neutron_initial_network() {

     TENANT_ID=$(keystone tenant-list | grep " demo " | get_field 1)

+    die_if_not_set $LINENO TENANT_ID "Failure retrieving TENANT_ID for demo"

     # Create a small network

     # Since neutron command is executed in admin context at this point,

@@ -360,12 +361,16 @@ function create_neutron_initial_network() {

             sudo ip addr add $IP dev $OVS_PHYSICAL_BRIDGE

         done

         NET_ID=$(neutron net-create $PHYSICAL_NETWORK --tenant_id $TENANT_ID --provider:network_type flat --provider:physical_network "$PHYSICAL_NETWORK" | grep ' id ' | get_field 2)

+        die_if_not_set $LINENO NET_ID "Failure creating NET_ID for $PHYSICAL_NETWORK $TENANT_ID"

         SUBNET_ID=$(neutron subnet-create --tenant_id $TENANT_ID --ip_version 4 ${ALLOCATION_POOL:+--allocation-pool $ALLOCATION_POOL} --gateway $NETWORK_GATEWAY --name $PRIVATE_SUBNET_NAME $NET_ID $FIXED_RANGE | grep ' id ' | get_field 2)

+        die_if_not_set $LINENO SUBNET_ID "Failure creating SUBNET_ID for $TENANT_ID"

         sudo ifconfig $OVS_PHYSICAL_BRIDGE up

         sudo route add default gw $NETWORK_GATEWAY dev $OVS_PHYSICAL_BRIDGE

     else

         NET_ID=$(neutron net-create --tenant_id $TENANT_ID "$PRIVATE_NETWORK_NAME" | grep ' id ' | get_field 2)

+        die_if_not_set $LINENO NET_ID "Failure creating NET_ID for $PHYSICAL_NETWORK $TENANT_ID"

         SUBNET_ID=$(neutron subnet-create --tenant_id $TENANT_ID --ip_version 4 --gateway $NETWORK_GATEWAY --name $PRIVATE_SUBNET_NAME $NET_ID $FIXED_RANGE | grep ' id ' | get_field 2)

+        die_if_not_set $LINENO SUBNET_ID "Failure creating SUBNET_ID for $TENANT_ID"

     fi

     if [[ "$Q_L3_ENABLED" == "True" ]]; then

@@ -373,14 +378,18 @@ function create_neutron_initial_network() {

         if [[ "$Q_L3_ROUTER_PER_TENANT" == "True" ]]; then

             # create a tenant-owned router.

             ROUTER_ID=$(neutron router-create --tenant_id $TENANT_ID $Q_ROUTER_NAME | grep ' id ' | get_field 2)

+            die_if_not_set $LINENO ROUTER_ID "Failure creating ROUTER_ID for $TENANT_ID $Q_ROUTER_NAME"

         else

             # Plugin only supports creating a single router, which should be admin owned.

             ROUTER_ID=$(neutron router-create $Q_ROUTER_NAME | grep ' id ' | get_field 2)

+            die_if_not_set $LINENO ROUTER_ID "Failure creating ROUTER_ID for $Q_ROUTER_NAME"

         fi

         neutron router-interface-add $ROUTER_ID $SUBNET_ID

         # Create an external network, and a subnet. Configure the external network as router gw

         EXT_NET_ID=$(neutron net-create "$PUBLIC_NETWORK_NAME" -- --router:external=True | grep ' id ' | get_field 2)

+        die_if_not_set $LINENO EXT_NET_ID "Failure creating EXT_NET_ID for $PUBLIC_NETWORK_NAME"

         EXT_GW_IP=$(neutron subnet-create --ip_version 4 ${Q_FLOATING_ALLOCATION_POOL:+--allocation-pool $Q_FLOATING_ALLOCATION_POOL} --gateway $PUBLIC_NETWORK_GATEWAY --name $PUBLIC_SUBNET_NAME $EXT_NET_ID $FLOATING_RANGE -- --enable_dhcp=False | grep 'gateway_ip' | get_field 2)

+        die_if_not_set $LINENO EXT_GW_IP "Failure creating EXT_GW_IP"

         neutron router-gateway-set $ROUTER_ID $EXT_NET_ID

         if is_service_enabled q-l3; then

@@ -390,6 +399,7 @@ function create_neutron_initial_network() {

                 sudo ip addr add $EXT_GW_IP/$CIDR_LEN dev $PUBLIC_BRIDGE

                 sudo ip link set $PUBLIC_BRIDGE up

                 ROUTER_GW_IP=`neutron port-list -c fixed_ips -c device_owner | grep router_gateway | awk -F '"' '{ print $8; }'`

+                die_if_not_set $LINENO ROUTER_GW_IP "Failure retrieving ROUTER_GW_IP"

                 sudo route add -net $FIXED_RANGE gw $ROUTER_GW_IP

             fi

             if [[ "$Q_USE_NAMESPACE" == "False" ]]; then

@@ -526,14 +526,19 @@ function create_swift_accounts() {

     fi

     SWIFT_TENANT_TEST1=$(keystone tenant-create --name=swifttenanttest1 | grep " id " | get_field 2)

+    die_if_not_set $LINENO SWIFT_TENANT_TEST1 "Failure creating SWIFT_TENANT_TEST1"

     SWIFT_USER_TEST1=$(keystone user-create --name=swiftusertest1 --pass=testing --email=test@example.com | grep " id " | get_field 2)

+    die_if_not_set $LINENO SWIFT_USER_TEST1 "Failure creating SWIFT_USER_TEST1"

     keystone user-role-add --user-id $SWIFT_USER_TEST1 --role-id $ADMIN_ROLE --tenant-id $SWIFT_TENANT_TEST1

     SWIFT_USER_TEST3=$(keystone user-create --name=swiftusertest3 --pass=testing3 --email=test3@example.com | grep " id " | get_field 2)

+    die_if_not_set $LINENO SWIFT_USER_TEST3 "Failure creating SWIFT_USER_TEST3"

     keystone user-role-add --user-id $SWIFT_USER_TEST3 --role-id $ANOTHER_ROLE --tenant-id $SWIFT_TENANT_TEST1

     SWIFT_TENANT_TEST2=$(keystone tenant-create --name=swifttenanttest2 | grep " id " | get_field 2)

+    die_if_not_set $LINENO SWIFT_TENANT_TEST2 "Failure creating SWIFT_TENANT_TEST2"

     SWIFT_USER_TEST2=$(keystone user-create --name=swiftusertest2 --pass=testing2 --email=test2@example.com | grep " id " | get_field 2)

+    die_if_not_set $LINENO SWIFT_USER_TEST2 "Failure creating SWIFT_USER_TEST2"

     keystone user-role-add --user-id $SWIFT_USER_TEST2 --role-id $ADMIN_ROLE --tenant-id $SWIFT_TENANT_TEST2

 }

@@ -1080,7 +1080,9 @@ fi

 # Create an access key and secret key for nova ec2 register image

 if is_service_enabled key && is_service_enabled swift3 && is_service_enabled nova; then

     NOVA_USER_ID=$(keystone user-list | grep ' nova ' | get_field 1)

+    die_if_not_set $LINENO NOVA_USER_ID "Failure retrieving NOVA_USER_ID for nova"

     NOVA_TENANT_ID=$(keystone tenant-list | grep " $SERVICE_TENANT_NAME " | get_field 1)

+    die_if_not_set $LINENO NOVA_TENANT_ID "Failure retrieving NOVA_TENANT_ID for $SERVICE_TENANT_NAME"

     CREDS=$(keystone ec2-credentials-create --user_id $NOVA_USER_ID --tenant_id $NOVA_TENANT_ID)

     ACCESS_KEY=$(echo "$CREDS" | awk '/ access / { print $4 }')

     SECRET_KEY=$(echo "$CREDS" | awk '/ secret / { print $4 }')

@@ -5,4 +5,5 @@ set -o errexit

 TOP_DIR=$(cd ../../.. && pwd)

 HEAD_IP=`cat $TOP_DIR/addresses | grep HEAD | cut -d "=" -f2`

+die_if_not_set $LINENO HEAD_IP "Failure retrieving HEAD_IP"

 ssh stack@$HEAD_IP 'cd devstack && source openrc && cd exercises &&  ./euca.sh'

@@ -5,4 +5,5 @@ set -o errexit

 TOP_DIR=$(cd ../../.. && pwd)

 HEAD_IP=`cat $TOP_DIR/addresses | grep HEAD | cut -d "=" -f2`

+die_if_not_set $LINENO HEAD_IP "Failure retrieving HEAD_IP"

 ssh stack@$HEAD_IP 'cd devstack && source openrc && cd exercises &&  ./floating_ips.sh'

@@ -5,4 +5,5 @@ set -o errexit

 TOP_DIR=$(cd ../../.. && pwd)

 HEAD_IP=`cat $TOP_DIR/addresses | grep HEAD | cut -d "=" -f2`

+die_if_not_set $LINENO HEAD_IP "Failure retrieving HEAD_IP"

 ssh stack@$HEAD_IP 'cd devstack && source openrc && cd exercises &&  ./volumes.sh'