Building Kubernetes Infra using Kubespray

This presentation is about how to build Kubernetes cluster using Kubespray.

Transcript

1. 안승규 (Seungkyu Ahn) ahnsk@sk.com Building Infra
2. 저는 소개하자면 • JSP&Servlet -> EJB -> Spring, Hibernate • CVS -> Subversion -> Git • Ant -> Maven • Transactional Script -> OR Mapping, Domain Modeling • Heavy Class -> Design pattern, Refactoring • Waterfall, UML -> XP Developer : ~2010년 Engineer : 2011년~ • OpenStack • Linux • Docker, Kubernetes • Ansible 학습중 • Deep Learning • Spring boot, Frontend, IOS, Android https://www.ahnseungkyu.com seungkyua@gmail.com
3. 3 Kubernetes Architecture 3 Kube-API Master Kube-Scheduler Kube-Controller Node Kube-Proxy Kubelet Kube-Proxy Kubelet Nginx Calico Calico Etcd
4. 4 Kubespray 4 • Kubernetes incubator • https://github.com/kubernetes-incubator/kubespray • Ansible
5. 5 Prerequisite 5 • Connect using ssh without password for all node • sudo no password • Install Python - all node • swapoff • Install pip • pip install -r requirements.txt • Install ansible
6. 6 Host file 6
7. 7 Host file 7 k0-master01 ansible_port=22 ansible_host=k0-master01 ip=10.0.0.177 k0-node01 ansible_port=22 ansible_host=k0-node01 ip=10.0.0.178 [etcd] k0-master01 [kube-master] k0-master01 [kube-node] k0-node01 [k8s-cluster:children] kube-node kube-master
8. 8 roles 8
9. 9 k8s-cluster.yml 9
10. 10 k8s-cluster.yml 10 kube_version: v1.10.4 kube_network_plugin: calico kube_service_addresses: 10.233.0.0/18 kube_pods_subnet: 10.233.64.0/18 dashboard_enabled: true helm_enabled: false istio_enabled: false local_volume_provisioner_enabled: false ingress_nginx_enabled: false
11. 11 Install kubernetes 11 ansible-playbook -u seungkyua -b -i inventory/k0-seungkyua/hosts.ini cluster.yml
12. 12 kubernetes cluster 12
13. Kubernetes Korea User Group https://www.facebook.com/groups/k8skr/
14. Q&A