GitHub
https://github.com/call518/OpenStack-on-Kubernetes
Greetings
Hi! all, Welcome to my project. I hope this will be useful thing. :)
p.s. And I hope that some guy help me. If you are interested in this, please contact me. thank you.
Intro
OaaS is "OpenStack as a Service".
MAINTAINER: Jung-In.Jung (call518@gmail.com)
2018-06-20 ~ Now
Goals
- Auto-Provisioning OpenStack, Based on Kubernetes(k8s).
- Scalaing for LB/HA.
- Supoort Provisioning Almost OpenStack Releases. (Newton/Ocata/Pike/Queens/...)
- Simple and Dynamic Configuration.
- Auto Failover/Failback.
Components Diagram
Networking Diagram
Progress
- Ocata
- memcached (Completed)
- rabbitmq (Completed)
- mongodb (Completed)
- etcd (Completed)
- galera (Completed)
- haproxy (Completed)
- keystone (Completed)
- glance (Completed)
- nova (Completed)
- neutron (Completed)
- cinder (Completed)
- heat (Completed)
- ceilometer-central (Completed)
- aodh (Completed)
- horizon (Completed)
- Integration of OpenStack Releases.
- (TODO: Planning...)
Tutorial
System Env. & Arch.
Requirements.
- General Kubernetes Cluster.
- All k8s Worker nodes have to sync Time (e.g. chrony, ntp)
- k8s worker nodes for neutron-server/nova-compute need to load openvswitch/ebtables/ip_vs kernel module.
- Run contents of host_kernel_modules_for_oaas.sh on compute/network role(label) woker nodes.
- Quorum PODs (Replica is have to 2n+1)
- galera-etcd
- galera
- rabbitmq
Env.
(Note) We have tested this tutorial with 6 VMs on VirtualBox Env. If u want, any env is possible. (eg. physical machines)
(Note) We use NFS for cinder backend storage for simple tutorial, but soon we will change to ceph back-end storage.
Spec. of Physical Host
- Processor: Intel Core i5-6500 (3.2GHz)
- Memory: 32GB
- Storage: SSD (2TB)
- NIC: Intel(R) Ethernet Connection (5) I219-LM
Spec. of each VM
(Note) Maybe, you need big RAM. if not, reduce number of replicas.
- CentOS-7 x86_64
- 2 EA vCPUs
- vRAM: 2GB ~ 6GB
- 100 GB vDisk
- 1 EA NIC
Spec. of k8s
This is versions of packages that i have tested.
- docker-ce-18.06.0.ce-3.el7.x86_64
- kubernetes-cni-0.6.0-0.x86_64
- kubectl-1.11.1-0.x86_64
- kubelet-1.11.1-0.x86_64
- kubeadm-1.11.1-0.x86_64
VM OS Env.
/etc/hosts
# cat /etc/hosts
192.168.0.150 k8s-master
192.168.0.151 k8s-node01
192.168.0.152 k8s-node02
192.168.0.153 k8s-node03
192.168.0.154 k8s-node04
192.168.0.155 k8s-node05Deploy Tutorial
Node Labels (Role)
(!) Network(neutron-sever) worker nodes must be separated/dedicated. (network=true)
[k8s-master]# kubectl get node --show-labels
NAME STATUS ROLES AGE VERSION LABELS
k8s-master Ready master 8d v1.11.1 node-role.kubernetes.io/master=
k8s-node01 Ready <none> 8d v1.11.1 controller=true,compute=true,nfs-server=true
k8s-node02 Ready <none> 8d v1.11.1 controller=true,compute=true
k8s-node03 Ready <none> 8d v1.11.1 controller=true,compute=true
k8s-node04 Ready <none> 8d v1.11.1 network=true
k8s-node05 Ready <none> 8d v1.11.1 network=truedefault configs (eg. password)
check main env file, src-ocata/configMap-env-common.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: env-common
data:
K8S_OPENSTACK_RELEASE: "ocata"
MYSQL_ROOT_PASSWORD: "passw0rd"
DISCOVERY_SERVICE: "etcd-client:2379"
XTRABACKUP_PASSWORD: "passw0rd"
CLUSTER_NAME: "mariadb_galera_ss"
#MYSQL_DATABASE: "mydatabase"
#MYSQL_USER: "myuser"
MYSQL_PASSWORD: "passw0rd"
K8S_MONGO_USER: "admin"
K8S_MONGO_PASS: "passw0rd"
K8S_KEYSTONE_DB_PASS: "passw0rd"
K8S_GLANCE_DB_PASS: "passw0rd"
K8S_CINDER_DB_PASS: "passw0rd"
K8S_NEUTRON_DB_PASS: "passw0rd"
K8S_NOVA_DB_PASS: "passw0rd"
K8S_GNOCCHI_DB_PASS: "passw0rd"
K8S_AODH_DB_PASS: "passw0rd"
K8S_HEAT_DB_PASS: "passw0rd"
K8S_KEYSTONE_USER_ADMIN_PASS: "passw0rd"
K8S_KEYSTONE_USER_DEMO_PASS: "demo"
K8S_KEYSTONE_USER_GLANCE_PASS: "passw0rd"
K8S_KEYSTONE_USER_CINDER_PASS: "passw0rd"
K8S_KEYSTONE_USER_NEUTRON_PASS: "passw0rd"
K8S_KEYSTONE_USER_NOVA_PASS: "passw0rd"
K8S_KEYSTONE_USER_PLACEMENT_PASS: "passw0rd"
K8S_KEYSTONE_USER_GNOCCHI_PASS: "passw0rd"
K8S_KEYSTONE_USER_CEILOMETER_PASS: "passw0rd"
K8S_KEYSTONE_USER_AODH_PASS: "passw0rd"
K8S_KEYSTONE_USER_HEAT_PASS: "passw0rd"
K8S_HAPROXY_STATS_USERNAME: "admin"
K8S_HAPROXY_STATS_PASSWORD: "passw0rd"
K8S_RABBITMQ_ADMIN_USER: "admin"
K8S_RABBITMQ_ADMIN_PASS: "passw0rd"
K8S_RABBITMQ_OPENSTACK_USER: "openstack"
K8S_RABBITMQ_OPENSTACK_PASS: "passw0rd"
K8S_METADATA_PROXY_SHARED_SECRET: "QU6muuXhU4oAeLzDas6obGsDtoFNZTHq"
K8S_NFS_SERVER_IP_ETC_KEY: "k8s-oaas-nfs-server-ip-address"
K8S_EXT_SUBNET_CIDR: "192.168.100.0/24"
K8S_EXT_SUBNET_POOL_START: "192.168.100.101"
K8S_EXT_SUBNET_POOL_END: "192.168.100.200"
K8S_EXT_SUBNET_GW: "192.168.100.1"
K8S_DEMO_SUBNET_CIDR: "172.16.0.0/24"
K8S_DEMO_SUBNET_GW: "172.16.0.1"
K8S_DEMO_SUBNET_DNS: "8.8.8.8"Required Docker Images.
- call518/oaas-init-container
- call518/oaas-nfs-server
- call518/oaas-etcd
- call518/oaas-galera
- call518/oaas-memcached
- call518/oaas-rabbitmq
- call518/oaas-mongodb
- call518/oaas-haproxy
- call518/oaas-zookeeper
- call518/oaas-ocata
Initiate Deploying OpenStack
[k8s-master]# git clone [here]
[k8s-master]# cd OpenStack-on-Kubernetes/src-ocata
[k8s-master]# ./start-oaas.shResult Deploying
[k8s-master]# kubectl get all -o wide
NAME READY STATUS RESTARTS AGE IP NODE
pod/cinder-0 1/1 Running 0 38m 10.244.3.130 k8s-node03
pod/cinder-1 1/1 Running 0 6m 10.244.1.143 k8s-node01
pod/etcd0 1/1 Running 0 38m 10.244.2.112 k8s-node02
pod/etcd1 1/1 Running 0 38m 10.244.3.127 k8s-node03
pod/etcd2 1/1 Running 0 38m 10.244.1.137 k8s-node01
pod/galera-0 1/1 Running 1 38m 10.244.2.117 k8s-node02
pod/galera-1 1/1 Running 0 17m 10.244.3.133 k8s-node03
pod/galera-2 1/1 Running 1 33m 10.244.1.142 k8s-node01
pod/glance-0 1/1 Running 0 38m 10.244.1.140 k8s-node01
pod/glance-1 1/1 Running 0 10m 10.244.3.135 k8s-node03
pod/haproxy-7b567f67d8-mxm7v 1/1 Running 3 38m 10.244.3.128 k8s-node03
pod/horizon-6965547f56-kgc44 1/1 Running 0 38m 10.244.2.116 k8s-node02
pod/keystone-0 1/1 Running 0 38m 10.244.2.114 k8s-node02
pod/keystone-1 1/1 Running 0 13m 10.244.3.134 k8s-node03
pod/memcached-0 1/1 Running 0 38m 10.244.2.113 k8s-node02
pod/memcached-1 1/1 Running 0 38m 10.244.3.129 k8s-node03
pod/memcached-2 1/1 Running 0 38m 10.244.1.138 k8s-node01
pod/neutron-server-0 1/1 Running 0 38m 10.244.1.139 k8s-node01
pod/neutron-server-1 1/1 Running 0 5m 10.244.3.136 k8s-node03
pod/nfs-server 1/1 Running 0 38m 10.244.1.136 k8s-node01
pod/nova-compute-0 1/1 Running 0 38m 10.244.4.24 k8s-node04
pod/nova-compute-1 1/1 Running 0 38m 10.244.5.24 k8s-node05
pod/nova-server-0 1/1 Running 0 38m 10.244.2.115 k8s-node02
pod/nova-server-1 1/1 Running 0 4m 10.244.1.144 k8s-node01
pod/rabbitmq-0 1/1 Running 0 38m 10.244.3.131 k8s-node03
pod/rabbitmq-1 1/1 Running 0 35m 10.244.1.141 k8s-node01
pod/rabbitmq-2 1/1 Running 0 35m 10.244.2.118 k8s-node02
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/cinder ClusterIP None <none> 8776/TCP 38m app=cinder
service/etcd-client ClusterIP 10.109.90.101 <none> 2379/TCP 38m app=etcd
service/etcd0 ClusterIP 10.110.11.231 <none> 2379/TCP,2380/TCP 38m etcd_node=etcd0
service/etcd1 ClusterIP 10.98.35.253 <none> 2379/TCP,2380/TCP 38m etcd_node=etcd1
service/etcd2 ClusterIP 10.110.157.230 <none> 2379/TCP,2380/TCP 38m etcd_node=etcd2
service/galera ClusterIP None <none> 3306/TCP 38m app=galera
service/glance ClusterIP None <none> 9292/TCP,9191/TCP 38m app=glance
service/haproxy-galera ClusterIP None <none> 3306/TCP 38m app=haproxy
service/haproxy-stats NodePort 10.103.245.255 <none> 9000:30090/TCP 38m app=haproxy
service/horizon NodePort 10.103.67.208 <none> 80:30080/TCP 38m app=horizon
service/keystone ClusterIP None <none> 5000/TCP,35357/TCP 38m app=keystone
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 2d <none>
service/memcached ClusterIP None <none> 11211/TCP 38m app=memcached
service/neutron-server ClusterIP None <none> 9696/TCP 38m app=neutron-server
service/nova-compute ClusterIP None <none> 8774/TCP,8775/TCP,6080/TCP 38m app=nova-compute
service/nova-server NodePort 10.111.84.90 <none> 8774:30177/TCP,8778:30246/TCP,8775:31964/TCP,6080:30068/TCP 38m app=nova-server
service/rabbitmq ClusterIP None <none> 5672/TCP,4369/TCP,25672/TCP 38m app=rabbitmq
service/rabbitmq-management ClusterIP None <none> 15672/TCP 38m app=rabbitmq
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE CONTAINERS IMAGES SELECTOR
deployment.apps/haproxy 1 1 1 1 38m haproxy call518/oaas-haproxy app=haproxy
deployment.apps/horizon 1 1 1 1 38m horizon call518/oaas-ocata app=horizon
NAME DESIRED CURRENT READY AGE CONTAINERS IMAGES SELECTOR
replicaset.apps/haproxy-7b567f67d8 1 1 1 38m haproxy call518/oaas-haproxy app=haproxy,pod-template-hash=3612392384
replicaset.apps/horizon-6965547f56 1 1 1 38m horizon call518/oaas-ocata app=horizon,pod-template-hash=2521103912
NAME DESIRED CURRENT AGE CONTAINERS IMAGES
statefulset.apps/cinder 2 2 38m cinder call518/oaas-ocata
statefulset.apps/galera 3 3 38m galera call518/oaas-galera
statefulset.apps/glance 2 2 38m glance call518/oaas-ocata
statefulset.apps/keystone 2 2 38m keystone call518/oaas-ocata
statefulset.apps/memcached 3 3 38m memcached call518/oaas-memcached
statefulset.apps/neutron-server 2 2 38m neutron-server call518/oaas-ocata
statefulset.apps/nova-compute 2 2 38m nova-compute call518/oaas-ocata
statefulset.apps/nova-server 2 2 38m nova-server call518/oaas-ocata
statefulset.apps/rabbitmq 3 3 38m rabbitmq call518/oaas-rabbitmqOpen Horizon Dashboard
In browser, http://[One_of_worker_nodes]:30080
Scaling
(Note) Maybe, needed more worker nodes...
<Examples>
[k8s-master]# kubectl scale --replicas=4 statefulset.apps/cinder
[k8s-master]# kubectl scale --replicas=5 statefulset.apps/galera (must 2n+1)ScreenShots
Login
Overview
Instances
Network Topology
Instance Web Console
TODO
- Re-Configuration Flat-IP Ranbe for EXT-NET.
- (Done)
Simplify initContainer Check-Processing. - Integration of All of Provision Source. /w Template and ETc...
Appendix
Repositories
Active Repository (GitHub)
https://github.com/call518/OpenStack-on-Kubernetes
Mirrored Repository (GitLab)
https://gitlab.com/call518/OpenStack-on-Kubernetes
References
- HAProxy
- MongoDB
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