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TripleO reality check

TripleO

A management cloud and a production cloud

Undercloud and Overcloud

A program aimed at installing, upgrading and operating OpenStack clouds using OpenStack's own cloud facilities as the foundations.

Undercloud

Any OpenStack deployment which provides Heat, Nova, Glance, Neutron, Ironic

Is used to deploy, update, scale up or down, delete and redeploy the Overcloud, on baremetal nodes or on VMs, as if these were local resources

Instack can deploy the Undercloud as an AllInOne, on baremetal or on a VM

Will (in the future) do Heat autoscaling and Mistral workflows

Overcloud deployment process

Heat logic provides Hiera data for Puppet

Heat demands creation of the basic resources (servers, networks)
Nova (and Ironic) deploy unconfigured images on baremetal or virtual nodes
On call-back, Heat unlocks different metadata per server/role
Metadata containts Puppet manifests and Hiera data
A local Puppet apply configures the node; on success receives further data

Both the Hiera data and the manifest can be edited and reapplied via Heat update

Overcloud

Controller/Compute/Ceph/Cinder/Swift roles

Can do HA (with Pacemaker)

Can do Ceph (managed or external)

Can do network isolation (also on IPv6)

Can be upgraded (only in between minors for now)

Configured by Puppet (Hiera)

Is very hackable (Hiera, Puppet manifests, Shell scripts)

How I set up the demo

Used Instack to create 4 VMs on a single baremetal
Installed an AllInOne Undercloud on the first VM
Built the Overcloud images
Registered the remaining 3 VMs in Ironic
Deployed an Overcloud made up of 3 nodes

Docs are at tripleo.org

tripleo.sh


              Automates TripleO setup steps.

              Options:
              --repo-setup         -- Perform repository setup.
              --delorean-setup     -- Install local delorean build environment.
              --delorean-build     -- Build a delorean package locally
              --undercloud         -- Install the undercloud.
              --overcloud-images   -- Build and load overcloud images.
              --register-nodes     -- Register and configure nodes.
              --introspect-nodes   -- Introspect nodes.
              --flavors            -- Create flavors for deployment.
              --overcloud-deploy   -- Deploy an overcloud.
              --use-containers     -- Use a containerized compute node.
              --all, -a            -- Run all of the above commands.
              -x                   -- enable tracing
              --help, -h           -- Print this help message.

Not in the docs, you should checkout tripleo-common

Demo configuration params


            parameter_defaults:
              ControlPlaneSubnetCidr: "24"
              ControlPlaneDefaultRoute: 192.0.2.1
              EC2MetadataIp: 192.0.2.1
              ExternalInterfaceDefaultRoute: 172.16.10.251
              ExternalNetCidr: 172.16.10.0/24
              ExternalAllocationPools: [{'start': '172.16.10.4', 'end': '172.16.10.99'}]
              DnsServers: ['8.8.8.8']


            $ more ceph.yaml
            ceph::profile::params::osd_journal_size: 1024
            ceph::profile::params::osd_pool_default_pg_num: 32
            ceph::profile::params::osd_pool_default_pgp_num: 32
            ceph::profile::params::osd_pool_default_size: 3
            ceph::profile::params::osd_pool_default_min_size: 1
            ceph::profile::params::osds: {/srv/data: {}}
            ceph::profile::params::manage_repo: false
            ceph::profile::params::authentication_type: cephx

Future?

Composable roles

Deploy all roles in containers

Overcloud guests HA

A friendly UI

Questions?

Giulio Fidente @ Red Hat

IRC: gfidente