OpenStack
Basics
- Services:
Nova => Compute => EC2 Neutron => Network => VPC Swift => Storage => S3 Glance => Image Services => RabbitMQ => Message Queue Keystone Horizon
Installation using PackStack
Source: tecmint.com
Topology
Mgmt PG-747
[]--------------[OS]-----------------[]
ens160 ens192
10.10.30.8/23 No IP address, Promiscuous mode
Initial Steps
Requirement:
CentOS VM 16 GB RAM 100 GB HDD 2 Virtual NICs
Interface Config(ens192):
- Do not change the HWADDR and UUID keys
- Do not assign IP address
- If the OS VM is deployed on top of a vCenter cloud, change the value of Promiscous Mode, MAC address Changes and Forged Transmists to Accept on the PG used for the Provider Network Mapping interface of the VM
nano /etc/sysconfig/network-scripts/ifcfg-ens192
DEVICE=ens192 TYPE=Ethernet ONBOOT="yes" BOOTPROTO="none"
Remove unneeded services:
systemctl stop postfix firewalld NetworkManager systemctl disable postfix firewalld NetworkManager systemctl mask NetworkManager yum remove postfix NetworkManager NetworkManager-libnm
Completely disable Selinux policy
setenforce 0 getenforce vi /etc/selinux/config SELINUX=disabled
Set hostname
hostnamectl set-hostname cloud.centos.lan
Install NTP
yum install ntpdate
Install MariaDB:
yum install mariadb-server systemctl start mariadb.service
Do not set the password for root user, else set it to blank again:
mysqladmin -u root -p<present-password> password
Preparing OpenStack Queens Installation
OpenStack will be deployed with the help of PackStack package provided by rdo repository (RPM Distribution of OpenStack):
yum install https://www.rdoproject.org/repos/rdo-release.rpm
Setup the OpenStack repository:
yum install -y centos-release-openstack-queens yum update -y
Packstack facilitates the deployment on multiple nodes for different components of OpenStack via SSH connections and Puppet modules:
yum install openstack-packstack
Generate an answer file to deploy a standalone installation of Openstack (single node):
packstack --gen-answer-file='date +"%d.%m.%y"'.conf
Edit the generated answer configuration file with a text editor:
vi 03.09.18.conf
CONFIG_NTP_SERVERS=0.ro.pool.ntp.org CONFIG_PROVISION_DEMO=n CONFIG_KEYSTONE_ADMIN_PW=your_password # For Admin user CONFIG_HEAT_INSTALL=y # Install OpenStack Orchestration (HEAT) CONFIG_HORIZON_SSL=y # Access OpenStack dashboard via HTTP with SSL enabled CONFIG_MARIADB_PW=mypassword1234 # The root password for MySQL server CONFIG_NAGIOS_INSTALL=n # Disable Nagios
Enable Root SSH login by uncomment below line:
vi /etc/ssh/sshd_config PermitRootLogin yes
systemctl restart sshd
Start Installation using Packstack Answer File
Using above Answer file:
packstack --answer-file 13.04.16.conf
Default setup without Answer file:
packstack --allinone
Credentials can be found (if you haven’t set it in the answers.txt file) in below file:
cat keystonerc_admin
Installation using DevStack
Source: techrepublic.com
 This section is under construction.
|
Verification
source keystonerc_admin openstack user list openstack project list openstack service list openstack catalog list
neutron router-port-list adminrouter neutron router-port-list --column id --column status --column fixed_ips adminrouter neutron port-show 43c9ff00-07ce-4069-a734-4e6d5e795e6a
Running CirrOS
https://download.cirros-cloud.net/ wget http://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img
openstack image create "cirros-raw" --disk-format raw --container-format bare --public --file ~/cirros-0.4.0-x86_64-disk.img
openstack image list
+--------------------------------------+-------------------------------------------------------------------------------------------------------------+--------+ | ID | Name | Status | +--------------------------------------+-------------------------------------------------------------------------------------------------------------+--------+ | b26d5360-5e10-4482-a52b-41782b7e1332 | Avi-SE-17.2.12-9128-cloud-5f5b017e-dbf9-4ab2-a1cb-b5de3bed6fc2-cluster-c820efe7-2e24-4a14-9a7f-c2df55477599 | active | | 7d95c733-3279-47f3-bbc2-047e1d3cb3b7 | Avi-SE-17.2.12-9128-cloud-5f5b017e-dbf9-4ab2-a1cb-b5de3bed6fc2-cluster-c820efe7-2e24-4a14-9a7f-c2df55477599 | active | | 614e8dda-97c3-43c4-a986-0395357ff9d9 | cirros-raw | active | +--------------------------------------+-------------------------------------------------------------------------------------------------------------+--------+
Create an instance:
Use vip4 Networks for it as it is a Server
neutron agent-list
+--------------------------------------+--------------------+------------------+-------------------+-------+----------------+---------------------------+ | id | agent_type | host | availability_zone | alive | admin_state_up | binary | +--------------------------------------+--------------------+------------------+-------------------+-------+----------------+---------------------------+ | 293e5768-18ff-4733-aeaa-3faeff3f0165 | DHCP agent | cloud.centos.lan | nova | :-) | True | neutron-dhcp-agent | | 2ee38f4f-351f-4a86-8f37-635ca07cc6f1 | Open vSwitch agent | cloud.centos.lan | | :-) | True | neutron-openvswitch-agent | | cc037a05-0873-4fbd-8b44-85ec046ca264 | Metadata agent | cloud.centos.lan | | :-) | True | neutron-metadata-agent | | eec3cee5-b3a1-4f98-85e7-89d6f5584d77 | L3 agent | cloud.centos.lan | nova | :-) | True | neutron-l3-agent | | f8f85b4e-73f0-4636-9bef-a7cb68394c63 | Metering agent | cloud.centos.lan | | :-) | True | neutron-metering-agent | +--------------------------------------+--------------------+------------------+-------------------+-------+----------------+---------------------------+
Troubleshooting
RabbitMQ Troubleshooting
Check if RabbitMQ is running or not:
rabbitmqctl status rabbitmqctl environment
Check if any crash file exists here:
cd /var/lib/rabbitmq/
Restart the RabbitMQ service on the first controller node:
service rabbitmq-server stop service rabbitmq-server start
If the service refuses to stop, then run the pkill command to stop the service, then restart the service:
pkill -KILL -u rabbitmq service rabbitmq-server start
Verify RabbitMQ processes are running:
ps -ef | grep rabbitmq rabbitmqctl list_queues rabbitmqctl list_queues 2>&1 | grep -i error
If there are errors, run the cluster_status command to make sure there are no partitions:
rabbitmqctl cluster_status
Instance not creating
Check Nova logs:
/var/log/nova/nova-api.log ==> API Call logs /var/log/nova/nova-conductor.log /var/log/nova/nova-compute.log
Check Nova Services
> nova service-list
+--------------------------------------+------------------+------------------+----------+---------+-------+----------------------------+-----------------+-------------+ | Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | Forced down | +--------------------------------------+------------------+------------------+----------+---------+-------+----------------------------+-----------------+-------------+ | 4cd953d4-3f77-4c63-9c91-ec61023cd8de | nova-conductor | cloud.centos.lan | internal | enabled | up | 2018-09-20T13:57:43.000000 | - | False | | dd640ca4-cc3e-4aac-af2f-47f9a79aa7fc | nova-scheduler | cloud.centos.lan | internal | enabled | up | 2018-09-20T13:57:42.000000 | - | False | | ec1b8ae1-ac8d-42c4-b78d-b08337e7c190 | nova-consoleauth | cloud.centos.lan | internal | enabled | up | 2018-09-20T13:57:44.000000 | - | False | | cecd523e-eaa0-44cc-a43a-c8986be62d5c | nova-compute | cloud.centos.lan | nova | enabled | up | 2018-09-20T13:57:37.000000 | - | False | +--------------------------------------+------------------+------------------+----------+---------+-------+----------------------------+-----------------+-------------+
Check Service
nova list
+--------------------------------------+--------------+--------+------------+-------------+----------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+--------------+--------+------------+-------------+----------+ | df5f815b-ff04-4890-9092-0a140527ae7c | Avi-se-dpogu | BUILD | scheduling | NOSTATE | | | d7a4b63d-7d6e-447c-9569-d7ef80724881 | Avi-se-vljym | BUILD | scheduling | NOSTATE | | +--------------------------------------+--------------+--------+------------+-------------+----------+
Nova Show Instance
nova show 20193e58-2c5b-44c6-a98f-a44e2001934f
Compute Service List
> openstack compute service list +----+------------------+------------------+----------+---------+-------+----------------------------+ | ID | Binary | Host | Zone | Status | State | Updated At | +----+------------------+------------------+----------+---------+-------+----------------------------+ | 3 | nova-conductor | cloud.centos.lan | internal | enabled | up | 2018-09-20T13:55:03.000000 | | 4 | nova-scheduler | cloud.centos.lan | internal | enabled | up | 2018-09-20T13:55:02.000000 | | 5 | nova-consoleauth | cloud.centos.lan | internal | enabled | up | 2018-09-20T13:55:04.000000 | | 6 | nova-compute | cloud.centos.lan | nova | enabled | up | 2018-09-20T13:55:07.000000 | +----+------------------+------------------+----------+---------+-------+----------------------------+
Check System Services:
systemctl list-unit-files
Restart Nova Compute Service
service openstack-nova-compute restart
Check Images in Glance
> glance image-list +--------------------------------------+-------------------------------------------------------------------------------------------------------------+ | ID | Name | +--------------------------------------+-------------------------------------------------------------------------------------------------------------+ | 7d95c733-3279-47f3-bbc2-047e1d3cb3b7 | Avi-SE-17.2.12-9128-cloud-5f5b017e-dbf9-4ab2-a1cb-b5de3bed6fc2-cluster-c820efe7-2e24-4a14-9a7f-c2df55477599 | | 18227c90-22fa-4bf1-8497-7a4419a00473 | cirros-qcow2 | | 614e8dda-97c3-43c4-a986-0395357ff9d9 | cirros-raw | | 4fc86d84-2fa0-47bc-919e-efd2d8f1031d | cirros-web | +--------------------------------------+-------------------------------------------------------------------------------------------------------------+
Check image details
> glance image-show 4fc86d84-2fa0-47bc-919e-efd2d8f1031d +------------------+--------------------------------------+ | Property | Value | +------------------+--------------------------------------+ | checksum | 097e8befc3def6267eeab69e3db0f220 | | container_format | bare | | created_at | 2018-09-21T09:57:41Z | | disk_format | qcow2 | | id | 4fc86d84-2fa0-47bc-919e-efd2d8f1031d | | min_disk | 0 | | min_ram | 0 | | name | cirros-web | | owner | d9b6b382a3ed45d1aa0f6c8dacf93176 | | protected | False | | size | 20709376 | | status | active | | tags | [] | | updated_at | 2018-09-21T09:57:41Z | | virtual_size | None | | visibility | public | +------------------+--------------------------------------+
> openstack hypervisor list +----+---------------------+-----------------+------------+-------+ | ID | Hypervisor Hostname | Hypervisor Type | Host IP | State | +----+---------------------+-----------------+------------+-------+ | 1 | cloud.centos.lan | QEMU | 10.10.30.8 | up | +----+---------------------+-----------------+------------+-------+
> openstack compute service list +----+------------------+------------------+----------+---------+-------+----------------------------+ | ID | Binary | Host | Zone | Status | State | Updated At | +----+------------------+------------------+----------+---------+-------+----------------------------+ | 3 | nova-conductor | cloud.centos.lan | internal | enabled | up | 2018-09-25T04:40:19.000000 | | 4 | nova-scheduler | cloud.centos.lan | internal | enabled | up | 2018-09-25T04:40:20.000000 | | 5 | nova-consoleauth | cloud.centos.lan | internal | enabled | up | 2018-09-25T04:40:17.000000 | | 6 | nova-compute | cloud.centos.lan | nova | enabled | up | 2018-09-25T04:40:15.000000 | +----+------------------+------------------+----------+---------+-------+----------------------------+
> openstack service list +----------------------------------+------------+----------------+ | ID | Name | Type | +----------------------------------+------------+----------------+ | 0a438bbc780f44f9b66371cfa39a542d | placement | placement | | 19b41de10cba46f58a11187fbdae3eaf | gnocchi | metric | | 36c9559264b74544a51e0d4b1e7deb3d | heat-cfn | cloudformation | | 4014b4d990164799832407480d985b59 | ceilometer | metering | | 66969875070d46c09e67e20fbb169b51 | swift | object-store | | 6a86847bb0074c399bdd8db17a0d765b | heat | orchestration | | 73f00b0163f5483faac9e89291c2f414 | neutron | network | | 854a73ec550d40ef8aef57f0961df5c6 | cinder | volume | | 8a2d2ffae2f54d3cbab3b1b5611c1119 | cinderv3 | volumev3 | | a111492334684364ae305d1bb61d8455 | aodh | alarming | | a951b997549848e7ac93c01ccaf23aab | glance | image | | e08b87f75da24ba59ca9046e91fea51c | nova | compute | | f073ee492e0f4349810d5a2b9e3d94f8 | keystone | identity | | f27c21ecca90427298f3a9af62013602 | cinderv2 | volumev2 | +----------------------------------+------------+----------------+
> openstack endpoint list | grep -i placement
| 07802b28b40f4cfd8308b4351a5092ee | RegionOne | placement | placement | True | public | http://10.10.30.8:8778/placement | | 2fa60fbbb5214f45953540a071efaffe | RegionOne | placement | placement | True | internal | http://10.10.30.8:8778/placement | | b76395b1badb4a2bb462f35e35b71522 | RegionOne | placement | placement | True | admin | http://10.10.30.8:8778/placement |
> netstat -an | grep -i 8778 tcp 0 0 0.0.0.0:8778 0.0.0.0:* LISTEN tcp 1 0 10.10.30.8:59868 10.10.30.8:8778 CLOSE_WAIT tcp 0 0 10.10.30.8:8778 10.10.30.8:58828 TIME_WAIT tcp 0 0 10.10.30.8:8778 10.10.30.8:59868 FIN_WAIT2
> neutron agent-list
+--------------------------------------+--------------------+------------------+-------------------+-------+----------------+---------------------------+ | id | agent_type | host | availability_zone | alive | admin_state_up | binary | +--------------------------------------+--------------------+------------------+-------------------+-------+----------------+---------------------------+ | 293e5768-18ff-4733-aeaa-3faeff3f0165 | DHCP agent | cloud.centos.lan | nova | :-) | True | neutron-dhcp-agent | | 2ee38f4f-351f-4a86-8f37-635ca07cc6f1 | Open vSwitch agent | cloud.centos.lan | | :-) | True | neutron-openvswitch-agent | | cc037a05-0873-4fbd-8b44-85ec046ca264 | Metadata agent | cloud.centos.lan | | :-) | True | neutron-metadata-agent | | eec3cee5-b3a1-4f98-85e7-89d6f5584d77 | L3 agent | cloud.centos.lan | nova | :-) | True | neutron-l3-agent | | f8f85b4e-73f0-4636-9bef-a7cb68394c63 | Metering agent | cloud.centos.lan | | :-) | True | neutron-metering-agent | +--------------------------------------+--------------------+------------------+-------------------+-------+----------------+---------------------------+
> nano /etc/nova/nova.conf virt_type = qemu
> ip netns qdhcp-4d8df480-f1ec-413a-8500-a2e05caba55d (id: 4) qdhcp-208f9e3c-5e66-47a1-95d3-02c9860d122a (id: 3) qdhcp-98e9a9df-2698-44cd-95b1-905fbbbe1165 (id: 1) qdhcp-bd58da20-f41b-483f-bee0-55f5e51b7d9a (id: 2) qrouter-73240828-df62-4c02-b214-be6ee9572bda (id: 0)
> ip netns exec qrouter-73240828-df62-4c02-b214-be6ee9572bda bash
> ping 10.0.3.5 PING 10.0.3.5 (10.0.3.5) 56(84) bytes of data. 64 bytes from 10.0.3.5: icmp_seq=1 ttl=64 time=4.44 ms 64 bytes from 10.0.3.5: icmp_seq=2 ttl=64 time=0.879 ms ^C --- 10.0.3.5 ping statistics --- 2 packets transmitted, 2 received, 0% packet loss, time 1000ms rtt min/avg/max/mdev = 0.879/2.661/4.444/1.783 ms
Aodh Exception
Check Aodh Logs:
cat /var/log/aodh/evaluator.log
If you see "Table 'aodh.alarm' doesn't exist" error try to initialize aodh database:
aodh-dbsync
- References
{{#widget:DISQUS
|id=networkm
|uniqid=OpenStack
|url=https://aman.awiki.org/wiki/OpenStack
}}