TripleO/RDO based deployments¶
TripleO is a project aimed at installing, upgrading and operating OpenStack clouds using OpenStack’s own cloud facilities as the foundation.
RDO is the OpenStack distribution that runs on top of CentOS, and can be deployed via TripleO.
TripleO Quickstart is an easy way to try out TripleO in a libvirt virtualized environment.
In this document we will stick to the details of installing a 3 controller + 1 compute in high availability through TripleO Quickstart, but the non-quickstart details in this document also work with TripleO.
Note
This deployment requires 32GB for the VMs, so your host may have >32GB of RAM at least. If you have 32GB I recommend to trim down the compute node memory in “config/nodes/3ctlr_1comp.yml” to 2GB and controller nodes to 5GB.
Deployment steps¶
Download the quickstart.sh script with curl:
$ curl -O https://raw.githubusercontent.com/openstack/tripleo-quickstart/master/quickstart.shInstall the necessary dependencies by running:
$ bash quickstart.sh --install-depsClone the tripleo-quickstart and networking-ovn repositories:
$ git clone https://opendev.org/openstack/tripleo-quickstart $ git clone https://opendev.org/openstack/networking-ovn
Once you’re done, run quickstart as follows (3 controller HA + 1 compute):
# Exporting the tags is a workaround until the bug # https://bugs.launchpad.net/tripleo/+bug/1737602 is resolved $ export ansible_tags="untagged,provision,environment,libvirt,\ undercloud-scripts,undercloud-inventory,overcloud-scripts,\ undercloud-setup,undercloud-install,undercloud-post-install,\ overcloud-prep-config" $ bash ./quickstart.sh --tags $ansible_tags --teardown all \ --release master-tripleo-ci \ --nodes tripleo-quickstart/config/nodes/3ctlr_1comp.yml \ --config networking-ovn/tripleo/ovn.yml \ $VIRTHOST
Note
When deploying directly on
localhostuse the loopback address 127.0.0.2 as your $VIRTHOST. The loopback address 127.0.0.1 is reserved by ansible. Also make sure that 127.0.0.2 is accessible via public keys:$ cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys
Note
You can adjust RAM/VCPUs if you want by editing config/nodes/3ctlr_1comp.yml before running the above command. If you have enough memory stick to the defaults. We recommend using 8GB of RAM for the controller nodes.
When quickstart has finished you will have 5 VMs ready to be used, 1 for the undercloud (TripleO’s node to deploy your openstack from), 3 VMs for controller nodes and 1 VM for the compute node.
Log in into the undercloud:
$ ssh -F ~/.quickstart/ssh.config.ansible undercloudPrepare overcloud container images:
[stack@undercloud ~]$ ./overcloud-prep-containers.shRun inside the undercloud:
[stack@undercloud ~]$ ./overcloud-deploy.shGrab a coffee, that may take around 1 hour (depending on your hardware).
If anything goes wrong, go to IRC on freenode, and ask on #oooq
Description of the environment¶
Once deployed, inside the undercloud root directory two files are present: stackrc and overcloudrc, which will let you connect to the APIs of the undercloud (managing the openstack node), and to the overcloud (where your instances would live).
We can find out the existing controller/computes this way:
[stack@undercloud ~]$ source stackrc
(undercloud) [stack@undercloud ~]$ openstack server list -c Name -c Networks -c Flavor
+-------------------------+------------------------+--------------+
| Name | Networks | Flavor |
+-------------------------+------------------------+--------------+
| overcloud-controller-1 | ctlplane=192.168.24.16 | oooq_control |
| overcloud-controller-0 | ctlplane=192.168.24.14 | oooq_control |
| overcloud-controller-2 | ctlplane=192.168.24.12 | oooq_control |
| overcloud-novacompute-0 | ctlplane=192.168.24.13 | oooq_compute |
+-------------------------+------------------------+--------------+
Network architecture of the environment¶
Connecting to one of the nodes via ssh¶
We can connect to the IP address in the openstack server list we showed before.
(undercloud) [stack@undercloud ~]$ ssh heat-admin@192.168.24.16
Last login: Wed Feb 21 14:11:40 2018 from 192.168.24.1
[heat-admin@overcloud-controller-1 ~]$ ps fax | grep ovn-controller
20422 ? S<s 30:40 ovn-controller unix:/var/run/openvswitch/db.sock -vconsole:emer -vsyslog:err -vfile:info --no-chdir --log-file=/var/log/openvswitch/ovn-controller.log --pidfile=/var/run/openvswitch/ovn-controller.pid --detach
[heat-admin@overcloud-controller-1 ~]$ sudo ovs-vsctl show
bb413f44-b74f-4678-8d68-a2c6de725c73
Bridge br-ex
fail_mode: standalone
...
Port "patch-provnet-84d63c87-aad1-43d0-bdc9-dca5145b6fe6-to-br-int"
Interface "patch-provnet-84d63c87-aad1-43d0-bdc9-dca5145b6fe6-to-br-int"
type: patch
options: {peer="patch-br-int-to-provnet-84d63c87-aad1-43d0-bdc9-dca5145b6fe6"}
Port "eth0"
Interface "eth0"
...
Bridge br-int
fail_mode: secure
Port "ovn-c8b85a-0"
Interface "ovn-c8b85a-0"
type: geneve
options: {csum="true", key=flow, remote_ip="172.16.0.17"}
Port "ovn-b5643d-0"
Interface "ovn-b5643d-0"
type: geneve
options: {csum="true", key=flow, remote_ip="172.16.0.14"}
Port "ovn-14d60a-0"
Interface "ovn-14d60a-0"
type: geneve
options: {csum="true", key=flow, remote_ip="172.16.0.12"}
Port "patch-br-int-to-provnet-84d63c87-aad1-43d0-bdc9-dca5145b6fe6"
Interface "patch-br-int-to-provnet-84d63c87-aad1-43d0-bdc9-dca5145b6fe6"
type: patch
options: {peer="patch-provnet-84d63c87-aad1-43d0-bdc9-dca5145b6fe6-to-br-int"}
Port br-int
Interface br-int
type: internal
Initial resource creation¶
Well, now you have a virtual cloud with 3 controllers in HA, and one compute node, but no instances or routers running. We can give it a try and create a few resources:
You can use the following script to create the resources.
ssh -F ~ /.quickstart/ssh.config.ansible undercloud
source ~/overcloudrc
curl http://download.cirros-cloud.net/0.4.0/cirros-0.4.0-x86_64-disk.img \
> cirros-0.4.0-x86_64-disk.img
openstack image create "cirros" --file cirros-0.4.0-x86_64-disk.img \
--disk-format qcow2 --container-format bare --public
openstack network create public --provider-physical-network datacentre \
--provider-network-type vlan \
--provider-segment 10 \
--external --share
openstack subnet create --network public public --subnet-range 10.0.0.0/24 \
--allocation-pool start=10.0.0.20,end=10.0.0.250 \
--dns-nameserver 8.8.8.8 --gateway 10.0.0.1 \
--no-dhcp
openstack network create private
openstack subnet create --network private private \
--subnet-range 192.168.99.0/24
openstack router create router1
openstack router set --external-gateway public router1
openstack router add subnet router1 private
openstack security group create test
openstack security group rule create --ingress --protocol tcp \
--dst-port 22 test
openstack security group rule create --ingress --protocol icmp test
openstack security group rule create --egress test
openstack flavor create m1.tiny --disk 1 --vcpus 1 --ram 64
PRIV_NET=$(openstack network show private -c id -f value)
openstack server create --flavor m1.tiny --image cirros \
--nic net-id=$PRIV_NET --security-group test \
--wait cirros
openstack floating ip create --floating-ip-address 10.0.0.130 public
openstack server add floating ip cirros 10.0.0.130
Note
You can now log in into the instance if you want. In a CirrOS >0.4.0 image, the login account is cirros. The password is gocubsgo.
(overcloud) [stack@undercloud ~]$ ssh cirros@10.0.0.130
cirros@10.0.0.130's password:
$ ip a | grep eth0 -A 10
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1442 qdisc pfifo_fast qlen 1000
link/ether fa:16:3e:85:b4:66 brd ff:ff:ff:ff:ff:ff
inet 192.168.99.5/24 brd 192.168.99.255 scope global eth0
valid_lft forever preferred_lft forever
inet6 fe80::f816:3eff:fe85:b466/64 scope link
valid_lft forever preferred_lft forever
$ ping 10.0.0.1
PING 10.0.0.1 (10.0.0.1): 56 data bytes
64 bytes from 10.0.0.1: seq=0 ttl=63 time=2.145 ms
64 bytes from 10.0.0.1: seq=1 ttl=63 time=1.025 ms
64 bytes from 10.0.0.1: seq=2 ttl=63 time=0.836 ms
^C
--- 10.0.0.1 ping statistics ---
3 packets transmitted, 3 packets received, 0% packet loss
round-trip min/avg/max = 0.836/1.335/2.145 ms
$ ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: seq=0 ttl=52 time=3.943 ms
64 bytes from 8.8.8.8: seq=1 ttl=52 time=4.519 ms
64 bytes from 8.8.8.8: seq=2 ttl=52 time=3.778 ms
$ curl http://169.254.169.254/2009-04-04/meta-data/instance-id
i-00000002
