TripleO/RDO based deployments

updated: 2021-03-22 13:40

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

  1. Follow the TripleO Quickstart guide until the “–install-deps” step (included)

  2. Clone the tripleo-quickstart and networking-ovn repositories:

    $ git clone https://git.openstack.org/openstack/tripleo-quickstart
$ git clone https://git.openstack.org/openstack/networking-ovn

  3. 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 localhost use 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.

  4. 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.

  5. Log in into the undercloud:

    $ ssh -F ~/.quickstart/ssh.config.ansible undercloud

  6. Prepare overcloud container images:

    [stack@undercloud ~]$ ./overcloud-prep-containers.sh

  7. Run inside the undercloud:

    [stack@undercloud ~]$ ./overcloud-deploy.sh

  8. Grab a coffee, that may take around 1 hour (depending on your hardware).

  9. 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

TripleO Quickstart single NIC with vlans

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:

Initial resources we can create

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

neutron router-gateway-set router1 public
neutron router-interface-add 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
updated: 2021-03-22 13:40
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