openstack/devstack
Code Issues Proposed changes

Fix various things when n-cell is enabled

Browse Source 
1) Use the newer cell_type configuration option instead of overriding
the compute_api_class.

2) A nova-cells service is started for both the API cell (region) and
the compute cell (child).  The screen names were both 'n-cell' which
caused both services to log to the same log file.  The screen names have
been changed to n-cell-region and n-cell-child.

3) Security groups are not supported with cells.  Multiple exercises are
patched to use the 'default' security group instead of creating a new
one.  Additionally, if one uses the 'default' security group, do not try
to delete it, as one can never delete the default.

4) Disable the floating_ips and aggregates exercises when n-cell is
enabled, as they are not supported by cells.

5) Related to #4, disable the floating_ips tests within euca.sh

6) Update the README.md.  No services need to be disabled, and one only
needs to enable the n-cell service.

Change-Id: I9782d1e3cda3c9dd3daefa15c043f5b06473cb87
This commit is contained in:
Chris Behrens 2013-07-24 03:56:13 -07:00
parent c41a059864
commit c62c2b9b66
8 changed files with 99 additions and 66 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
README.md
View File

@ -188,15 +188,5 @@ Cells is a new scaling option with a full spec at http://wiki.openstack.org/blue
To setup a cells environment add the following to your `localrc`:
enable_service n-cell
enable_service n-api-meta
MULTI_HOST=True
# The following have not been tested with cells, they may or may not work.
disable_service n-obj
disable_service cinder
disable_service c-sch
disable_service c-api
disable_service c-vol
disable_service n-xvnc
Be aware that there are some features currently missing in cells, one notable one being security groups.
Be aware that there are some features currently missing in cells, one notable one being security groups. The exercises have been patched to disable functionality not supported by cells.

2
exercises/aggregates.sh
View File

@ -42,6 +42,8 @@ source $TOP_DIR/exerciserc
# Test as the admin user
. $TOP_DIR/openrc admin admin
# Cells does not support aggregates.
is_service_enabled n-cell && exit 55
# Create an aggregate
# ===================

10
exercises/boot_from_volume.sh
View File

@ -80,6 +80,11 @@ die_if_not_set $LINENO IMAGE "Failure getting image $DEFAULT_IMAGE_NAME"
# List security groups
nova secgroup-list
if is_service_enabled n-cell; then
# Cells does not support security groups, so force the use of "default"
SECGROUP="default"
echo "Using the default security group because of Cells."
else
# Create a secgroup
if ! nova secgroup-list | grep -q $SECGROUP; then
nova secgroup-create $SECGROUP "$SECGROUP description"
@ -88,6 +93,7 @@ if ! nova secgroup-list | grep -q $SECGROUP; then
exit 1
fi
fi
fi
# Configure Security Group Rules
if ! nova secgroup-list-rules $SECGROUP | grep -q icmp; then
@ -200,8 +206,12 @@ fi
end_time=$(date +%s)
echo "Completed cinder delete in $((end_time - start_time)) seconds"
if [[ $SECGROUP = "default" ]] ; then
echo "Skipping deleting default security group"
else
# Delete secgroup
nova secgroup-delete $SECGROUP || die $LINENO "Failure deleting security group $SECGROUP"
fi
set +o xtrace
echo "*********************************************************************"

16
exercises/euca.sh
View File

@ -58,6 +58,11 @@ SECGROUP=${SECGROUP:-euca_secgroup}
IMAGE=`euca-describe-images | grep machine | grep ${DEFAULT_IMAGE_NAME} | cut -f2 | head -n1`
die_if_not_set $LINENO IMAGE "Failure getting image $DEFAULT_IMAGE_NAME"
if is_service_enabled n-cell; then
# Cells does not support security groups, so force the use of "default"
SECGROUP="default"
echo "Using the default security group because of Cells."
else
# Add a secgroup
if ! euca-describe-groups | grep -q $SECGROUP; then
euca-add-group -d "$SECGROUP description" $SECGROUP
@ -65,6 +70,7 @@ if ! euca-describe-groups | grep -q $SECGROUP; then
die $LINENO "Security group not created"
fi
fi
fi
# Launch it
INSTANCE=`euca-run-instances -g $SECGROUP -t $DEFAULT_INSTANCE_TYPE $IMAGE | grep INSTANCE | cut -f2`
@ -77,7 +83,7 @@ fi
# Volumes
# -------
if [[ "$ENABLED_SERVICES" =~ "c-vol" ]]; then
if is_service_enabled c-vol && ! is_service_enabled n-cell; then
VOLUME_ZONE=`euca-describe-availability-zones | head -n1 | cut -f2`
die_if_not_set $LINENO VOLUME_ZONE "Failure to find zone for volume"
@ -117,6 +123,9 @@ else
echo "Volume Tests Skipped"
fi
if is_service_enabled n-cell; then
echo "Floating IP Tests Skipped because of Cells."
else
# Allocate floating address
FLOATING_IP=`euca-allocate-address | cut -f2`
die_if_not_set $LINENO FLOATING_IP "Failure allocating floating IP"
@ -153,6 +162,7 @@ euca-release-address $FLOATING_IP || \
if ! timeout $ASSOCIATE_TIMEOUT sh -c "while euca-describe-addresses | grep -q $FLOATING_IP; do sleep 1; done"; then
die $LINENO "Floating ip $FLOATING_IP not released within $ASSOCIATE_TIMEOUT seconds"
fi
fi
# Terminate instance
euca-terminate-instances $INSTANCE || \
@ -166,8 +176,12 @@ if ! timeout $TERMINATE_TIMEOUT sh -c "while euca-describe-instances $INSTANCE |
die $LINENO "server didn't terminate within $TERMINATE_TIMEOUT seconds"
fi
if [[ "$SECGROUP" = "default" ]] ; then
echo "Skipping deleting default security group"
else
# Delete secgroup
euca-delete-group $SECGROUP || die $LINENO "Failure deleting security group $SECGROUP"
fi
set +o xtrace
echo "*********************************************************************"

2
exercises/floating_ips.sh
View File

@ -56,6 +56,8 @@ TEST_FLOATING_POOL=${TEST_FLOATING_POOL:-test}
# Instance name
VM_NAME="ex-float"
# Cells does not support floating ips API calls
is_service_enabled n-cell && exit 55
# Launching a server
# ==================

10
exercises/volumes.sh
View File

@ -78,6 +78,11 @@ die_if_not_set $LINENO IMAGE "Failure getting image $DEFAULT_IMAGE_NAME"
# List security groups
nova secgroup-list
if is_service_enabled n-cell; then
# Cells does not support security groups, so force the use of "default"
SECGROUP="default"
echo "Using the default security group because of Cells."
else
# Create a secgroup
if ! nova secgroup-list | grep -q $SECGROUP; then
nova secgroup-create $SECGROUP "$SECGROUP description"
@ -86,6 +91,7 @@ if ! nova secgroup-list | grep -q $SECGROUP; then
exit 1
fi
fi
fi
# Configure Security Group Rules
if ! nova secgroup-list-rules $SECGROUP | grep -q icmp; then
@ -201,8 +207,12 @@ if ! timeout $TERMINATE_TIMEOUT sh -c "while nova list | grep -q $VM_UUID; do sl
die $LINENO "Server $VM_NAME not deleted"
fi
if [[ $SECGROUP = "default" ]] ; then
echo "Skipping deleting default security group"
else
# Delete secgroup
nova secgroup-delete $SECGROUP || die $LINENO "Failure deleting security group $SECGROUP"
fi
set +o xtrace
echo "*********************************************************************"

5
functions
View File

@ -745,12 +745,17 @@ function is_running() {
# For backward compatibility if we have **swift** in ENABLED_SERVICES all the
# **s-** services will be enabled. This will be deprecated in the future.
#
# Cells within nova is enabled if **n-cell** is in ``ENABLED_SERVICES``.
# We also need to make sure to treat **n-cell-region** and **n-cell-child**
# as enabled in this case.
#
# Uses global ``ENABLED_SERVICES``
# is_service_enabled service [service ...]
function is_service_enabled() {
services=$@
for service in ${services}; do
[[ ,${ENABLED_SERVICES}, =~ ,${service}, ]] && return 0
[[ ${service} == n-cell-* && ${ENABLED_SERVICES} =~ "n-cell" ]] && return 0
[[ ${service} == "nova" && ${ENABLED_SERVICES} =~ "n-" ]] && return 0
[[ ${service} == "cinder" && ${ENABLED_SERVICES} =~ "c-" ]] && return 0
[[ ${service} == "ceilometer" && ${ENABLED_SERVICES} =~ "ceilometer-" ]] && return 0

8
lib/nova
View File

@ -568,11 +568,11 @@ function init_nova_cells() {
iniset $NOVA_CELLS_CONF DEFAULT rabbit_virtual_host child_cell
iniset $NOVA_CELLS_CONF DEFAULT dhcpbridge_flagfile $NOVA_CELLS_CONF
iniset $NOVA_CELLS_CONF cells enable True
iniset $NOVA_CELLS_CONF cells cell_type compute
iniset $NOVA_CELLS_CONF cells name child
iniset $NOVA_CONF DEFAULT scheduler_topic cells
iniset $NOVA_CONF DEFAULT compute_api_class nova.compute.cells_api.ComputeCellsAPI
iniset $NOVA_CONF cells enable True
iniset $NOVA_CONF cells cell_type api
iniset $NOVA_CONF cells name region
if is_service_enabled n-api-meta; then
@ -714,8 +714,8 @@ function start_nova() {
if is_service_enabled n-cell; then
NOVA_CONF_BOTTOM=$NOVA_CELLS_CONF
screen_it n-cond "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-conductor --config-file $NOVA_CELLS_CONF"
screen_it n-cell "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-cells --config-file $NOVA_CONF"
screen_it n-cell "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-cells --config-file $NOVA_CELLS_CONF"
screen_it n-cell-region "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-cells --config-file $NOVA_CONF"
screen_it n-cell-child "cd $NOVA_DIR && $NOVA_BIN_DIR/nova-cells --config-file $NOVA_CELLS_CONF"
fi
if [[ "$VIRT_DRIVER" = 'libvirt' ]]; then