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Airsloop: Simple Bare-Metal Airship

Airsloop is a two node site deployment reference and continuous integration pipeline. The goal of this site is to be used as a reference for mini Airship deployments with one controller and one or more compute nodes.

Airsloop is meant to get an operator up and running quickly with an Airship lab environment, and has some resiliency and security features tuned down. Please see the Seaworthy manifests for a production-oriented example.

The site manifests are available at site/airsloop.

Pipeline

Airsloop pipeline automates deployment flow documented in Site Authoring and Deployment Guide.

The pipeline is implemented as Jenkins Pipeline (Groovy), see code for the pipeline at Jenkinsfile.

Versions

The manifest software version overrides (versions.yaml) are setup to deploy OpenStack Ocata.

The versions are kept up to date via updater.py, a utility that updates versions.yaml latest charts and (selected) images.

Due to the limited capacity of a test environment, only Ubuntu-based images are used at the moment.

The pipeline attempts to uplift and deploy latest versions on daily basis.

Hardware

While HW configuration is flexible, Airsloop reference manifests reflect a single controller and a single compute node. The aim of this is to create a minimalistic lab/demo reference environment.

Increasing the number of compute nodes will require site overrides to align parts of the system such as Ceph osds, etcd, etc.

This site is stripped down from all the complicated hardware and configuration requirements that Airship Seaworthy site is using and that leads to simplified deployments from disk,networking and hardware perspective.

Airsloop site has 2 bare-metal servers: 1 controller, and 1 compute node. See host profiles for the servers here.

Control (masters)

airsloop-control-1

Compute (workers)

airsloop-compute-1

For simplification of the configuration, we recommend using hostnames provided below.

For a two node deployment the nodes and their hostnames are:

Node	Hostnames
controller	airsloop-controller-1
compute	airsloop-compute-1

Network

Physical (underlay) networks are described in Drydock site configuration here. It defines OOB (iLO/IPMI), untagged PXE, and multiple tagged general use networks. Also no bond interfaces are used in Airsloop deployment.

In this deployment the networking is simplified compared to Airship Seaworthy site. There are only two NICs required (excluding oob), one for PXE and another one for the rest of the networks separated using VLAN segmentation. The recommendation is to use the highest bandwidth device available to carry to carry the data networks.

Below is an example of network configuration:

NICs	VLANs	Names	CIDRs
oob	N/A	oob	10.22.104.0/24
pxe	N/A	pxe	10.22.70.0/24
+ data +	71 ------------+ 72 ------------+ 73 ------------+ 74	oam -----------+ calico -----------+ storage -----------+ overlay	10.22.71.0/24 ---------------+ 10.22.72.0/24 ---------------+ 10.22.73.0/24 ---------------+ 10.22.74.0/24

NICs

VLANs

Names

CIDRs

oob

N/A

oob

10.22.104.0/24

pxe

N/A

pxe

10.22.70.0/24

data +

71

------------+: 72
------------+: 73
------------+: 74

oam

-----------+: calico
-----------+: storage
-----------+: overlay

10.22.71.0/24 ---------------+ 10.22.72.0/24 ---------------+ 10.22.73.0/24 ---------------+ 10.22.74.0/24

Calico overlay for k8s POD networking uses IPIP mesh.

Storage

Because Airsloop is a minimalistic deployment the required number of disks is just one per node. That disk is not only used by the OS but also by Ceph Journals and OSDs. The way that this is achieved is by using directories and not extra disks for Ceph storage. Ceph OSD configuration can be changed in a Ceph chart override.

Host Profiles

Host profiles in Airship are tightly coupled with the hardware profiles. That means every disk or interface which is described in host profiles should have a corresponding reference to the hardware profile which is being used.

Airship always identifies every NIC or disk by its PCI or SCSI address and that means that the interfaces and the disks that are defined in host and hardware profiles should have the correct PCI and SCSI addresses objectively.

Let's give an example by following the host profile of Airsloop site.

In this Host Profile is defined that the slave interface that will be used for the pxe boot will be the pxe_nic01. That means a corresponding entry should exist in this Hardware Profile which it does. So when drydock and maas try to deploy the node it will identify the interface by the PCI address that is written in the Hardware profile.

A simple way to find out which PCI od SCSi address corresponds to which NIC or Disk is to use the lshw command. More inforamtion about that command can be found Here.

Extend Cluster

This section describes what changes need to be made to the existing manifests of Airsloop for the addition of an extra compute node to the cluster.

First and foremost the user should go to the nodes.yaml file and add an extra section for the new compute node.

The next step is to add a similar section as the existing airsloop-compute-1 section to the pki-catalog.yaml. This is essential for the correct generation of certificates and the correct communication between the nodes in the cluster.

Also every time the user adds an extra compute node to the cluster then the number of OSDs that are managed by this manifest Ceph-client should be increased by one.

Last step is to regenerate the certificates which correspond to this certificates.yaml file so the changes in the pki-catalog.yaml file takes place. This can be done through the promenade CLI.

Getting Started

TODO: Specify which node(s) the command(s) in this section are run on. Also if there is an assumption that we have a node with Ubuntu already provisioned, that assumption or steps should be specified along with any Ubuntu version requirements/assumptions and other pre-requisite steps (e.g., installing NTP)

Below are the steps that a user should follow to deploy the Airsloop site:

TODO: Add the prerequisite steps that the user needs to do before starting executing the below steps such as: installing git, installing docker, clone sevral repos etc.

Collect manifests

./tools/airship pegleg site -r /target collect airsloop -s collect

Generate certs

mkdir certs
./tools/airship promenade generate-certs -o /target/certs /target/collect/*.yaml

Generate genesis.sh scipt

mkdir bundle
./tools/airship promenade build-all -o /target/bundle /target/collect/*.yaml /target/certs/*.yaml

Execute the genesis.sh script

cd /target/bundle
./genesis.sh

If the genesis.sh script completed succesfully

Deploy site through shipyard

./tools/airship shipyard create configdocs design --directory=/target/collect
./tools/airship shipyard commit configdocs
./tools/airship shipyard create action deploy_site

Check the actions that are already created

./tools/shipyard get actions

Deploying Behind a Proxy

The following documents show the main differences you need to make in order to have airsloop run behind a proxy.

Note

The "-" sign refers to a line that needs to be omitted (replaced), and the "+" sign refers to a line replacing the omitted line, or simply a line that needs to be added to your yaml.

Under site/airsloop/software/charts/osh/openstack-glance/ create a glance.yaml file as follows:

---
schema: armada/Chart/v1
metadata:
  schema: metadata/Document/v1
  replacement: true
  name: glance
  layeringDefinition:
    abstract: false
    layer: site
    parentSelector:
      name: glance-type
    actions:
      - method: merge
        path: .
  storagePolicy: cleartext
data:
  test:
    enabled: false
...

Under site/airsloop/software/config/ create a versions.yaml file in the following format:

---
data:
  charts:
    kubernetes:
      apiserver:
        proxy_server: proxy.example.com:8080
      apiserver-htk:
        proxy_server: proxy.example.com:8080
      calico:
        calico:
          proxy_server: proxy.example.com:8080
        calico-htk:
          proxy_server: proxy.example.com:8080
        etcd:
          proxy_server: proxy.example.com:8080
        etcd-htk:
          proxy_server: proxy.example.com:8080
      controller-manager:
        proxy_server: proxy.example.com:8080
      controller-manager-htk:
        proxy_server: proxy.example.com:8080
      coredns:
        proxy_server: proxy.example.com:8080
      coredns-htk:
        proxy_server: proxy.example.com:8080
      etcd:
        proxy_server: proxy.example.com:8080
      etcd-htk:
        proxy_server: proxy.example.com:8080
      haproxy:
        proxy_server: proxy.example.com:8080
      haproxy-htk:
        proxy_server: proxy.example.com:8080
      ingress:
        proxy_server: proxy.example.com:8080
      ingress-htk:
        proxy_server: proxy.example.com:8080
      proxy:
        proxy_server: proxy.example.com:8080
      proxy-htk:
        proxy_server: proxy.example.com:8080
      scheduler:
        proxy_server: proxy.example.com:8080
      scheduler-htk:
        proxy_server: proxy.example.com:8080
    osh:
      barbican:
        proxy_server: proxy.example.com:8080
      cinder:
        proxy_server: proxy.example.com:8080
      cinder-htk:
        proxy_server: proxy.example.com:8080
      glance:
        proxy_server: proxy.example.com:8080
      glance-htk:
        proxy_server: proxy.example.com:8080
      heat:
        proxy_server: proxy.example.com:8080
      heat-htk:
        proxy_server: proxy.example.com:8080
      helm_toolkit:
        proxy_server: proxy.example.com:8080
      horizon:
        proxy_server: proxy.example.com:8080
      horizon-htk:
        proxy_server: proxy.example.com:8080
      ingress:
        proxy_server: proxy.example.com:8080
      ingress-htk:
        proxy_server: proxy.example.com:8080
      keystone:
        proxy_server: proxy.example.com:8080
      keystone-htk:
        proxy_server: proxy.example.com:8080
      libvirt:
        proxy_server: proxy.example.com:8080
      libvirt-htk:
        proxy_server: proxy.example.com:8080
      mariadb:
        proxy_server: proxy.example.com:8080
      mariadb-htk:
        proxy_server: proxy.example.com:8080
      memcached:
        proxy_server: proxy.example.com:8080
      memcached-htk:
        proxy_server: proxy.example.com:8080
      neutron:
        proxy_server: proxy.example.com:8080
      neutron-htk:
        proxy_server: proxy.example.com:8080
      nova:
        proxy_server: proxy.example.com:8080
      nova-htk:
        proxy_server: proxy.example.com:8080
      openvswitch:
        proxy_server: proxy.example.com:8080
      openvswitch-htk:
        proxy_server: proxy.example.com:8080
      rabbitmq:
        proxy_server: proxy.example.com:8080
      rabbitmq-htk:
        proxy_server: proxy.example.com:8080
      tempest:
        proxy_server: proxy.example.com:8080
      tempest-htk:
        proxy_server: proxy.example.com:8080
    osh_infra:
      elasticsearch:
        proxy_server: proxy.example.com:8080
      fluent_logging:
        proxy_server: proxy.example.com:8080
      grafana:
        proxy_server: proxy.example.com:8080
      helm_toolkit:
        proxy_server: proxy.example.com:8080
      kibana:
        proxy_server: proxy.example.com:8080
      nagios:
        proxy_server: proxy.example.com:8080
      nfs_provisioner:
        proxy_server: proxy.example.com:8080
      podsecuritypolicy:
        proxy_server: proxy.example.com:8080
      prometheus:
        proxy_server: proxy.example.com:8080
      prometheus_alertmanager:
        proxy_server: proxy.example.com:8080
      prometheus_kube_state_metrics:
        proxy_server: proxy.example.com:8080
      prometheus_node_exporter:
        proxy_server: proxy.example.com:8080
      prometheus_openstack_exporter:
        proxy_server: proxy.example.com:8080
      prometheus_process_exporter:
        proxy_server: proxy.example.com:8080
    ucp:
      armada:
        proxy_server: proxy.example.com:8080
      armada-htk:
        proxy_server: proxy.example.com:8080
      barbican:
        proxy_server: proxy.example.com:8080
      barbican-htk:
        proxy_server: proxy.example.com:8080
      ceph-client:
        proxy_server: proxy.example.com:8080
      ceph-htk:
        proxy_server: proxy.example.com:8080
      ceph-mon:
        proxy_server: proxy.example.com:8080
      ceph-osd:
        proxy_server: proxy.example.com:8080
      ceph-provisioners:
        proxy_server: proxy.example.com:8080
      ceph-rgw:
        proxy_server: proxy.example.com:8080
      deckhand:
        proxy_server: proxy.example.com:8080
      deckhand-htk:
        proxy_server: proxy.example.com:8080
      divingbell:
        proxy_server: proxy.example.com:8080
      divingbell-htk:
        proxy_server: proxy.example.com:8080
      drydock:
        proxy_server: proxy.example.com:8080
      drydock-htk:
        proxy_server: proxy.example.com:8080
      ingress:
        proxy_server: proxy.example.com:8080
      ingress-htk:
        proxy_server: proxy.example.com:8080
      keystone:
        proxy_server: proxy.example.com:8080
      keystone-htk:
        proxy_server: proxy.example.com:8080
      maas:
        proxy_server: proxy.example.com:8080
      maas-htk:
        proxy_server: proxy.example.com:8080
      mariadb:
        proxy_server: proxy.example.com:8080
      mariadb-htk:
        proxy_server: proxy.example.com:8080
      memcached:
        proxy_server: proxy.example.com:8080
      memcached-htk:
        proxy_server: proxy.example.com:8080
      postgresql:
        proxy_server: proxy.example.com:8080
      postgresql-htk:
        proxy_server: proxy.example.com:8080
      promenade:
        proxy_server: proxy.example.com:8080
      promenade-htk:
        proxy_server: proxy.example.com:8080
      rabbitmq:
        proxy_server: proxy.example.com:8080
      rabbitmq-htk:
        proxy_server: proxy.example.com:8080
      shipyard:
        proxy_server: proxy.example.com:8080
      shipyard-htk:
        proxy_server: proxy.example.com:8080
      tenant-ceph-client:
        proxy_server: proxy.example.com:8080
      tenant-ceph-htk:
        proxy_server: proxy.example.com:8080
      tenant-ceph-mon:
        proxy_server: proxy.example.com:8080
      tenant-ceph-osd:
        proxy_server: proxy.example.com:8080
      tenant-ceph-provisioners:
        proxy_server: proxy.example.com:8080
      tenant-ceph-rgw:
        proxy_server: proxy.example.com:8080
      tiller:
        proxy_server: proxy.example.com:8080
      tiller-htk:
        proxy_server: proxy.example.com:8080
metadata:
  name: software-versions
  replacement: true
  layeringDefinition:
    abstract: false
    layer: site
    parentSelector:
      name: software-versions-global
    actions:
      - method: merge
        path: .
  storagePolicy: cleartext
  schema: metadata/Document/v1
schema: pegleg/SoftwareVersions/v1
...

Update site/airsloop/networks/common-addresses.yaml to add the proxy information as follows:

# settings are correct and reachable in your environment; otherwise update
# them with the correct values for your environment.
proxy:
-    http: ""
-    https: ""
-    no_proxy: []
+    http: "proxy.example.com:8080"
+    https: "proxy.example.com:8080"
+    no_proxy:
+      - 127.0.0.1

Under site/airsloop/software/charts/ucp/ create the file maas.yaml with the following format:

---
# This file defines site-specific deviations for MaaS.
schema: armada/Chart/v1
metadata:
  schema: metadata/Document/v1
  replacement: true
  name: ucp-maas
  layeringDefinition:
    abstract: false
    layer: site
    parentSelector:
      name: ucp-maas-type
    actions:
      - method: merge
        path: .
  storagePolicy: cleartext
data:
    values:
      conf:
        maas:
          proxy:
            proxy_enabled: true
            peer_proxy_enabled: true
            proxy_server: 'http://proxy.example.com:8080'
...

Under site/airsloop/software/charts/ucp/ create a promenade.yaml file in the following format:

---
# This file defines site-specific deviations for Promenade.
schema: armada/Chart/v1
metadata:
  schema: metadata/Document/v1
  replacement: true
  name: ucp-promenade
  layeringDefinition:
    abstract: false
    layer: site
    parentSelector:
      name: ucp-promenade-type
    actions:
      - method: merge
        path: .
  storagePolicy: cleartext
data:
  values:
    pod:
      env:
        promenade_api:
          - name: http_proxy
            value: http://proxy.example.com:8080
          - name: https_proxy
            value: http://proxy.example.com:8080
          - name: no_proxy
            value: "127.0.0.1,localhost,kubernetes,kubernetes.default,kubernetes.default.svc,kubernetes.default.svc.cluster.local,.cluster.local"
          - name: HTTP_PROXY
            value: http://proxy.example.com:8080
          - name: HTTP_PROXY
            value: http://proxy.example.com:8080
          - name: HTTPS_PROXY
            value: http://proxy.example.com:8080
          - name: NO_PROXY
            value: "127.0.0.1,localhost,kubernetes,kubernetes.default,kubernetes.default.svc,kubernetes.default.svc.cluster.local,.cluster.local"
...

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