新手入门-20170806-k8s 下 LNMP 的搭建（分离各个组件）

Port 对应

port —————————————- service nodeport ———————————– host targetport ———————————- pod containerport ——————————- container

访问流程： client -> nodePort -> node local random Port -> Cluster-Ip Port -> targetPort -> containerPort Kubernetes 集群的两种部署过程（daemon部署和容器化部署）以及glusterfs的应用！

delete replicationcontroller

[root@centos k8s-lnmp]# kubectl delete replicationcontroller k8s-php replicationcontroller "k8s-php" deleted [root@centos k8s-lnmp]# kubectl get pod

节点状态 - Node NotReady

[root@centos k8s-lnmp]# kubectl get node NAME STATUS AGE 127.0.0.1 NotReady 1d

猜测：

该节点上的 kubelet 没启动 systemctl start kubelet

如何向部署好的Kubernetes上添加node？

防火墙没关 systemctl stop iptables.service systemctl disable iptables.service systemctl stop firewalld.service systemctl disable firewalld.service

搭建kubernetes时容易遇到的问题

安装组件

yum install -y docker systemctl start docker yum install -y etcd kubernetes systemctl daemon-reload # 重载所有修改过的配置文件 systemctl start etcd kube-apiserver.service kube-controller-manager kube-scheduler systemctl enable etcd kube-apiserver.service kube-controller-manager kube-scheduler systemctl daemon-reload systemctl start kubelet.service kube-proxy docker systemctl enable kubelet.service kube-proxy docker

Kubernetes

bash-completion [root@centos k8s-lnmp]# kubectl -bash: _get_comp_words_by_ref: command not found php--bash: _get_comp_words_by_ref: command not found yum install -y bash-completion cat >> /etc/profile source <(kubectl completion bash) (ctrl+D) source /etc/profile no API token found for service account default/default, retry after the token is automatically created and added to the service account vi /etc/kubernetes/apiserver# 将ServiceAccount,去掉 KUBE_ADMISSION_CONTROL="--admission_control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota" systemctl restart kube-apiserver # 重启apiserver服务

跟风学Docker之六：Docker集群管理之Kubernetes

k8s 使用 docker 本地 image 的方法 # 构建本地 registry docker run -idt -p 5000:5000 --name registry -v /data/registry:/data/docker/registry registry # 上传至本地 registry URL docker tag lamp-php-mysql 127.0.0.1:5000/lamp-php-mysql docker push 127.0.0.1:5000/lamp-php-mysql docker tag lamp-php-mysql 127.0.0.1:5000/lamp-nginx docker push 127.0.0.1:5000/lamp-nginx docker tag lamp-php-mysql 127.0.0.1:5000/lamp-mysql docker push 127.0.0.1:5000/lamp-mysql

Docker本地私有仓库搭建

mysql password 配置及 volume 挂载 Kubernetes创建可外部访问的mysql容器

Kubernetes v1.5.2 安装 kube-dns

wget https://rawgit.com/kubernetes/kubernetes/release-1.5/cluster/addons/dns/skydns-rc.yaml.sed -O skydns-rc.yaml wget https://rawgit.com/kubernetes/kubernetes/release-1.5/cluster/addons/dns/skydns-svc.yaml.sed -O skydns-svc.yaml kubectl create -f skydns-rc.yaml kubectl create -f skydns-svc.yaml

Kubernetes 搭建kube-dns

cat busybox.yml apiVersion: v1 kind: Pod metadata: labels: name: busybox role: master name: busybox spec: containers: - name: busybox image: busybox command: - sleep - "360000" kubectl create -f busybox.yml kubectl exec -i -t busybox sh nslookup lamp-mysql

部署kubernetes dns服务

报错

The Service "kube-dns" is invalid: spec.clusterIP: Invalid value: "127.0.0.1": provided IP is not in the valid range

vi /etc/kubernetes/apiserver KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16"

You need to set the clusterIP to an IP in the “SERVICE_CLUSTER_IP_RANGE”, which is a CIDR range (typically a /16 or smaller) passed to the kube-apiserver process in the –service-cluster-ip-range flag. If you pick any address in that range you should no longer receive the above error. Kubernetes: kube-dns Service Creation

docker pull registry.cn-hangzhou.aliyuncs.com/magina-k8s/dnsmasq-metrics-amd64:1.0 docker pull registry.cn-hangzhou.aliyuncs.com/magina-k8s/exechealthz-amd64:1.2 docker pull registry.cn-hangzhou.aliyuncs.com/magina-k8s/kubedns-amd64:1.9 docker pull registry.cn-hangzhou.aliyuncs.com/magina-k8s/kube-dnsmasq-amd64:1.4 docker tag registry.cn-hangzhou.aliyuncs.com/magina-k8s/dnsmasq-metrics-amd64:1.0 127.0.0.1:5000/dnsmasq-metrics-amd64:1.0 docker tag registry.cn-hangzhou.aliyuncs.com/magina-k8s/exechealthz-amd64:1.2 127.0.0.1:5000/exechealthz-amd64:1.2 docker tag registry.cn-hangzhou.aliyuncs.com/magina-k8s/kube-dnsmasq-amd64:1.4 127.0.0.1:5000/kube-dnsmasq-amd64:1.4 docker tag registry.cn-hangzhou.aliyuncs.com/magina-k8s/kubedns-amd64:1.9 127.0.0.1:5000/kubedns-amd64:1.9 docker push 127.0.0.1:5000/dnsmasq-metrics-amd64:1.0 docker push 127.0.0.1:5000/exechealthz-amd64:1.2 docker push 127.0.0.1:5000/kube-dnsmasq-amd64:1.4 docker push 127.0.0.1:5000/kubedns-amd64:1.9

阿里云kubernetes部署(v1.5.x)

Kubernetes 1.5 配置dns

然而，依旧没有成功，留着这个坑吧，下次再研究。

Kubernetes 使用 kubeadm 部署【未测】

https://mritd.me/2016/10/29/set-up-kubernetes-cluster-by-kubeadm/

Git

1-11111/k8s-lnmp http://git.oschina.net/zhoufen111111/k8s-lnmp