[openstack-dev] [neutron] dnsmasq process wasn't created after added a network
Yoshihiro Kaneko
ykaneko0929 at gmail.com
Fri Sep 20 12:23:19 UTC 2013
Hello,
I tried latest devstack (master branch).
And I created a network, but dnsmasq process for the network wasn't created.
localrc I used is as follows:
----------
HOST_NAME=$(hostname)
SERVICE_HOST=192.168.1.10
disable_service n-net
enable_service q-svc q-agt q-dhcp q-l3 q-meta neutron
Q_HOST=$SERVICE_HOST
MYSQL_HOST=$SERVICE_HOST
RABBIT_HOST=$SERVICE_HOST
GLANCE_HOSTPORT=$SERVICE_HOST:9292
KEYSTONE_AUTH_HOST=$SERVICE_HOST
KEYSTONE_SERVICE_HOST=$SERVICE_HOST
MYSQL_PASSWORD=mysql
RABBIT_PASSWORD=rabbit
SERVICE_TOKEN=service
SERVICE_PASSWORD=admin
SERVICE_TENANT_NAME=service
ADMIN_PASSWORD=admin
RECLONE=yes
----------
There is dnsmasq process for initial network (private) after stack.sh started.
----------
$ neutron net-list
+--------------------------------------+---------+------------------------------------------------------+
| id | name | subnets
|
+--------------------------------------+---------+------------------------------------------------------+
| b2c2cc34-d349-4a2d-b153-f4cd0d357d3d | public |
0aad0524-12b3-4ec9-9c4b-c592570a5711 172.24.4.224/28 |
| c2b46689-d1a4-40d0-b0d5-103582980eea | private |
09aa0f86-eeeb-4324-91b0-233d336a29d0 10.0.0.0/24 |
+--------------------------------------+---------+------------------------------------------------------+
$ neutron subnet-list
+--------------------------------------+----------------+-----------------+--------------------------------------------------+
| id | name | cidr
| allocation_pools |
+--------------------------------------+----------------+-----------------+--------------------------------------------------+
| 09aa0f86-eeeb-4324-91b0-233d336a29d0 | private-subnet | 10.0.0.0/24
| {"start": "10.0.0.2", "end": "10.0.0.254"} |
| 0aad0524-12b3-4ec9-9c4b-c592570a5711 | public-subnet |
172.24.4.224/28 | {"start": "172.24.4.226", "end": "172.24.4.238"} |
+--------------------------------------+----------------+-----------------+--------------------------------------------------+
$ neutron port-list -c fixed_ips -c device_owner
+-------------------------------------------------------------------------------------+--------------------------+
| fixed_ips
| device_owner |
+-------------------------------------------------------------------------------------+--------------------------+
| {"subnet_id": "09aa0f86-eeeb-4324-91b0-233d336a29d0", "ip_address":
"10.0.0.2"} | network:dhcp |
| {"subnet_id": "0aad0524-12b3-4ec9-9c4b-c592570a5711", "ip_address":
"172.24.4.226"} | network:router_gateway |
| {"subnet_id": "09aa0f86-eeeb-4324-91b0-233d336a29d0", "ip_address":
"10.0.0.1"} | network:router_interface |
+-------------------------------------------------------------------------------------+--------------------------+
$ ps ax | grep dnsmasq
5864 ? S 0:00 dnsmasq --no-hosts --no-resolv
--strict-order --bind-interfaces --interface=tap7d7f5c08-61
--except-interface=lo
--pid-file=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/pid
--dhcp-hostsfile=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/host
--dhcp-optsfile=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/opts
--leasefile-ro --dhcp-range=set:tag0,10.0.0.0,static,86400s
--dhcp-lease-max=256 --conf-file= --domain=openstacklocal
----------
Then, I added a new network, subnet and router, but dnsmasq process
wasn't added.
----------
$ neutron net-create private2
Created a new network:
+---------------------------+--------------------------------------+
| Field | Value |
+---------------------------+--------------------------------------+
| admin_state_up | True |
| id | 99341220-b12d-4dd0-af96-19a4915e3a03 |
| name | private2 |
| provider:network_type | local |
| provider:physical_network | |
| provider:segmentation_id | |
| shared | False |
| status | ACTIVE |
| subnets | |
| tenant_id | 818d0e9c0ae94f43bd6d65a69b6f2e17 |
+---------------------------+--------------------------------------+
$ neutron subnet-create --ip-version 4 --gateway 11.0.0.1 private2 11.0.0.0/24
Created a new subnet:
+------------------+--------------------------------------------+
| Field | Value |
+------------------+--------------------------------------------+
| allocation_pools | {"start": "11.0.0.2", "end": "11.0.0.254"} |
| cidr | 11.0.0.0/24 |
| dns_nameservers | |
| enable_dhcp | True |
| gateway_ip | 11.0.0.1 |
| host_routes | |
| id | ce09e211-1e4a-486f-b3c1-323e4919907a |
| ip_version | 4 |
| name | |
| network_id | 99341220-b12d-4dd0-af96-19a4915e3a03 |
| tenant_id | 818d0e9c0ae94f43bd6d65a69b6f2e17 |
+------------------+--------------------------------------------+
$ neutron router-create router2
Created a new router:
+-----------------------+--------------------------------------+
| Field | Value |
+-----------------------+--------------------------------------+
| admin_state_up | True |
| external_gateway_info | |
| id | 3838589a-5513-48f0-a297-8df1fa6166a4 |
| name | router2 |
| status | ACTIVE |
| tenant_id | 818d0e9c0ae94f43bd6d65a69b6f2e17 |
+-----------------------+--------------------------------------+
$ neutron router-interface-add 3838589a-5513-48f0-a297-8df1fa6166a4
ce09e211-1e4a-486f-b3c1-323e4919907a
Added interface e8281ce7-272e-46db-9b60-b9d2e7bcd248 to router
3838589a-5513-48f0-a297-8df1fa6166a4.
$ neutron router-gateway-set 3838589a-5513-48f0-a297-8df1fa6166a4
b2c2cc34-d349-4a2d-b153-f4cd0d357d3d
Set gateway for router 3838589a-5513-48f0-a297-8df1fa6166a4
$ neutron port-list -c fixed_ips -c device_owner
+-------------------------------------------------------------------------------------+--------------------------+
| fixed_ips
| device_owner |
+-------------------------------------------------------------------------------------+--------------------------+
| {"subnet_id": "09aa0f86-eeeb-4324-91b0-233d336a29d0", "ip_address":
"10.0.0.2"} | network:dhcp |
| {"subnet_id": "0aad0524-12b3-4ec9-9c4b-c592570a5711", "ip_address":
"172.24.4.226"} | network:router_gateway |
| {"subnet_id": "09aa0f86-eeeb-4324-91b0-233d336a29d0", "ip_address":
"10.0.0.1"} | network:router_interface |
| {"subnet_id": "ce09e211-1e4a-486f-b3c1-323e4919907a", "ip_address":
"11.0.0.1"} | network:router_interface |
| {"subnet_id": "0aad0524-12b3-4ec9-9c4b-c592570a5711", "ip_address":
"172.24.4.227"} | network:router_gateway |
+-------------------------------------------------------------------------------------+--------------------------+
$ ps ax|grep dnsmasq
5864 ? S 0:00 dnsmasq --no-hosts --no-resolv
--strict-order --bind-interfaces --interface=tap7d7f5c08-61
--except-interface=lo
--pid-file=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/pid
--dhcp-hostsfile=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/host
--dhcp-optsfile=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/opts
--leasefile-ro --dhcp-range=set:tag0,10.0.0.0,static,86400s
--dhcp-lease-max=256 --conf-file= --domain=openstacklocal
$ ip netns
qrouter-3838589a-5513-48f0-a297-8df1fa6166a4
qrouter-25711cb3-bb19-4888-a64d-410d53386bae
qdhcp-c2b46689-d1a4-40d0-b0d5-103582980eea
----------
I restart dhcp-agent for trial, then dnsmasq for new network was added
(2 processes in total).
----------
$ neutron port-list -c fixed_ips -c device_owner
+-------------------------------------------------------------------------------------+--------------------------+
| fixed_ips
| device_owner |
+-------------------------------------------------------------------------------------+--------------------------+
| {"subnet_id": "09aa0f86-eeeb-4324-91b0-233d336a29d0", "ip_address":
"10.0.0.2"} | network:dhcp |
| {"subnet_id": "0aad0524-12b3-4ec9-9c4b-c592570a5711", "ip_address":
"172.24.4.226"} | network:router_gateway |
| {"subnet_id": "09aa0f86-eeeb-4324-91b0-233d336a29d0", "ip_address":
"10.0.0.1"} | network:router_interface |
| {"subnet_id": "ce09e211-1e4a-486f-b3c1-323e4919907a", "ip_address":
"11.0.0.2"} | network:dhcp |
| {"subnet_id": "ce09e211-1e4a-486f-b3c1-323e4919907a", "ip_address":
"11.0.0.1"} | network:router_interface |
| {"subnet_id": "0aad0524-12b3-4ec9-9c4b-c592570a5711", "ip_address":
"172.24.4.227"} | network:router_gateway |
+-------------------------------------------------------------------------------------+--------------------------+
$ ps ax|grep dnsmasq
30668 ? S 0:00 dnsmasq --no-hosts --no-resolv
--strict-order --bind-interfaces --interface=tap7d7f5c08-61
--except-interface=lo
--pid-file=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/pid
--dhcp-hostsfile=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/host
--dhcp-optsfile=/opt/stack/data/neutron/dhcp/c2b46689-d1a4-40d0-b0d5-103582980eea/opts
--leasefile-ro --dhcp-range=set:tag0,10.0.0.0,static,86400s
--dhcp-lease-max=256 --conf-file= --domain=openstacklocal
31222 ? S 0:00 dnsmasq --no-hosts --no-resolv
--strict-order --bind-interfaces --interface=tapd6f7cb89-97
--except-interface=lo
--pid-file=/opt/stack/data/neutron/dhcp/99341220-b12d-4dd0-af96-19a4915e3a03/pid
--dhcp-hostsfile=/opt/stack/data/neutron/dhcp/99341220-b12d-4dd0-af96-19a4915e3a03/host
--dhcp-optsfile=/opt/stack/data/neutron/dhcp/99341220-b12d-4dd0-af96-19a4915e3a03/opts
--leasefile-ro --dhcp-range=set:tag0,11.0.0.0,static,86400s
--dhcp-lease-max=256 --conf-file= --domain=openstacklocal
$ ip netns
qdhcp-99341220-b12d-4dd0-af96-19a4915e3a03
qrouter-3838589a-5513-48f0-a297-8df1fa6166a4
qrouter-25711cb3-bb19-4888-a64d-410d53386bae
qdhcp-c2b46689-d1a4-40d0-b0d5-103582980eea
----------
I changed stack.sh to create initial network after having started dhcp-agent.
----------
diff --git a/stack.sh b/stack.sh
index 71e7317..6de6f7c 100755
--- a/stack.sh
+++ b/stack.sh
@@ -1203,7 +1203,7 @@ if is_service_enabled q-svc; then
echo_summary "Starting Neutron"
start_neutron_service_and_check
- create_neutron_initial_network
+ #create_neutron_initial_network
setup_neutron_debug
elif is_service_enabled $DATABASE_BACKENDS && is_service_enabled n-net; then
NM_CONF=${NOVA_CONF}
@@ -1223,6 +1223,7 @@ fi
if is_service_enabled neutron; then
start_neutron_agents
+ create_neutron_initial_network
fi
if is_service_enabled nova; then
echo_summary "Starting Nova"
----------
As a result, dnsmasq process for initial network was not created.
----------
$ neutron net-list
+--------------------------------------+---------+------------------------------------------------------+
| id | name | subnets
|
+--------------------------------------+---------+------------------------------------------------------+
| 0e5e5d57-4d93-461d-a382-cb9d099496c0 | public |
0825d3e6-48b8-4de5-975d-b63282a628c4 172.24.4.224/28 |
| fc6c9e5f-5435-4450-bae9-8455e9f198ca | private |
bb68d0d8-548a-4ce5-9107-d30ca15d172b 10.0.0.0/24 |
+--------------------------------------+---------+------------------------------------------------------+
$ neutron subnet-list
+--------------------------------------+----------------+-----------------+--------------------------------------------------+
| id | name | cidr
| allocation_pools |
+--------------------------------------+----------------+-----------------+--------------------------------------------------+
| 0825d3e6-48b8-4de5-975d-b63282a628c4 | public-subnet |
172.24.4.224/28 | {"start": "172.24.4.226", "end": "172.24.4.238"} |
| bb68d0d8-548a-4ce5-9107-d30ca15d172b | private-subnet | 10.0.0.0/24
| {"start": "10.0.0.2", "end": "10.0.0.254"} |
+--------------------------------------+----------------+-----------------+--------------------------------------------------+
$ neutron port-list -c fixed_ips -c device_owner
+-------------------------------------------------------------------------------------+--------------------------+
| fixed_ips
| device_owner |
+-------------------------------------------------------------------------------------+--------------------------+
| {"subnet_id": "0825d3e6-48b8-4de5-975d-b63282a628c4", "ip_address":
"172.24.4.226"} | network:router_gateway |
| {"subnet_id": "bb68d0d8-548a-4ce5-9107-d30ca15d172b", "ip_address":
"10.0.0.1"} | network:router_interface |
+-------------------------------------------------------------------------------------+--------------------------+
$ ps ax|grep dnsmasq
$ ip netns
qrouter-6ce35c23-fece-43cd-8735-4ec5ec5be98e
----------
Why doesn't dhcp-agent create dnsmasq process when a network was
added? Is this a bug?
Possibly this may be caused by my configuration and/or environment,
but I don't know what is wrong.
Please give me advice.
Thanks,
Kaneko
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