k8s与aws--在ec2中部署高可用k8s1.13.1集群(ipvs,cloud-provider

摘要：前言达到了生产可用，利用部署一个高可用集群简单不少。部署高可用集群为创建负载均衡这里选择的。执行加入操作验证部署部署的创建为打标签标记子网以允许入口控制器自动发现用于的子网。

kubeadm1.13达到了生产可用，利用kubeadm部署一个高可用集群简单不少。但是竟然部署在aws上，就要启用cloud-provider=aws，深度结合iaas层资源。主要是利用aws的elb和ebs等。相关的资料还是比较少的，已经有的一些文档要不是out了，要不就是内容不全，还有很多文章只是弄了一个demo的水平，完全没法上生产，部署过程破费周折。

Kubernetes 1.13.1

Docker 18.06.0-ce

Etcd 3.2.24

Calico 3.4.0 网络

master:

172.31.22.208

172.31.17.44

172.31.22.135

node:

172.31.29.58

etcd集群非容器部署，systemd守护

三台master主机配置ssh免密登录

systemctl stop firewalld
systemctl disable firewalld

# Set SELinux in permissive mode (effectively disabling it)
setenforce 0
sed -i "s/^SELINUX=enforcing$/SELINUX=permissive/" /etc/selinux/config

cat <  /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
vm.swappiness=0
EOF
sysctl --system

swapoff -a

修改/etc/fstab 文件，注释掉 SWAP 的自动挂载.
使用free -m确认swap已经关闭。

at > /etc/sysconfig/modules/ipvs.modules <
上面脚本创建了的/etc/sysconfig/modules/ipvs.modules文件，保证在节点重启后能自动加载所需模块。 使用lsmod | grep -e ip_vs -e nf_conntrack_ipv4命令查看是否已经正确加载所需的内核模块。
接下来还需要确保各个节点上已经安装了ipset软件包yum install ipset。 为了便于查看ipvs的代理规则，最好安装一下管理工具ipvsadm yum install ipvsadm。
赋予IAM权限
Master Policy
  {
  "Version": "2012-10-17",
  "Statement": [
    {
      "Effect": "Allow",
      "Action": [
        "autoscaling:DescribeAutoScalingGroups",
        "autoscaling:DescribeLaunchConfigurations",
        "autoscaling:DescribeTags",
        "ec2:DescribeInstances",
        "ec2:DescribeRegions",
        "ec2:DescribeRouteTables",
        "ec2:DescribeSecurityGroups",
        "ec2:DescribeSubnets",
        "ec2:DescribeVolumes",
        "ec2:CreateSecurityGroup",
        "ec2:CreateTags",
        "ec2:CreateVolume",
        "ec2:ModifyInstanceAttribute",
        "ec2:ModifyVolume",
        "ec2:AttachVolume",
        "ec2:AuthorizeSecurityGroupIngress",
        "ec2:CreateRoute",
        "ec2:DeleteRoute",
        "ec2:DeleteSecurityGroup",
        "ec2:DeleteVolume",
        "ec2:DetachVolume",
        "ec2:RevokeSecurityGroupIngress",
        "ec2:DescribeVpcs",
        "elasticloadbalancing:AddTags",
        "elasticloadbalancing:AttachLoadBalancerToSubnets",
        "elasticloadbalancing:ApplySecurityGroupsToLoadBalancer",
        "elasticloadbalancing:CreateLoadBalancer",
        "elasticloadbalancing:CreateLoadBalancerPolicy",
        "elasticloadbalancing:CreateLoadBalancerListeners",
        "elasticloadbalancing:ConfigureHealthCheck",
        "elasticloadbalancing:DeleteLoadBalancer",
        "elasticloadbalancing:DeleteLoadBalancerListeners",
        "elasticloadbalancing:DescribeLoadBalancers",
        "elasticloadbalancing:DescribeLoadBalancerAttributes",
        "elasticloadbalancing:DetachLoadBalancerFromSubnets",
        "elasticloadbalancing:DeregisterInstancesFromLoadBalancer",
        "elasticloadbalancing:ModifyLoadBalancerAttributes",
        "elasticloadbalancing:RegisterInstancesWithLoadBalancer",
        "elasticloadbalancing:SetLoadBalancerPoliciesForBackendServer",
        "elasticloadbalancing:AddTags",
        "elasticloadbalancing:CreateListener",
        "elasticloadbalancing:CreateTargetGroup",
        "elasticloadbalancing:DeleteListener",
        "elasticloadbalancing:DeleteTargetGroup",
        "elasticloadbalancing:DescribeListeners",
        "elasticloadbalancing:DescribeLoadBalancerPolicies",
        "elasticloadbalancing:DescribeTargetGroups",
        "elasticloadbalancing:DescribeTargetHealth",
        "elasticloadbalancing:ModifyListener",
        "elasticloadbalancing:ModifyTargetGroup",
        "elasticloadbalancing:RegisterTargets",
        "elasticloadbalancing:SetLoadBalancerPoliciesOfListener",
        "iam:CreateServiceLinkedRole",
        "kms:DescribeKey"
      ],
      "Resource": [
        "*"
      ]
    },
  ]
}
Node Policy
  {
      "Version": "2012-10-17",
      "Statement": [
          {
              "Effect": "Allow",
              "Action": [
                  "ec2:DescribeInstances",
                  "ec2:DescribeRegions",
                  "ecr:GetAuthorizationToken",
                  "ecr:BatchCheckLayerAvailability",
                  "ecr:GetDownloadUrlForLayer",
                  "ecr:GetRepositoryPolicy",
                  "ecr:DescribeRepositories",
                  "ecr:ListImages",
                  "ecr:BatchGetImage",
                  "sts:AssumeRole"
              ],
              "Resource": "*"
          } 
      ]
  }
tag标签
需要为ec2实例, route table, subnet，安全组 打下面的标签：
kubernetes.io/cluster/="owned"
cluster-name命名规范：
k8s-{region}-{env}-{num}
例如：
k8s-usa-west-2-test-1
安装docker和kubeadm
安装指定版本docker
安装docker
yum install docker-18.06.1ce-5.amzn2 -y

systemctl enable docker
更改docker Root Dir 目录
将/var/lib/dokcer 配置到/data/docker,确保/data是另外挂载的数据盘
更改 ‘/etc/sysconfig/docker’ 文件:
OPTIONS="--default-ulimit nofile=1024:4096 -g /data/docker" 
更改 /etc/docker/daemon.json:
cat >  /etc/docker/daemon.json <
验证
[root@ip-172-31-22-208 ~]# ls -lrt /var/lib/docker
总用量 0
[root@ip-172-31-22-208 ~]# ls -lrt /data/docker/
总用量 0
drwx------ 3 root root 20 12月 11 10:44 containerd
drwx------ 2 root root  6 12月 11 10:44 tmp
drwx------ 2 root root  6 12月 11 10:44 runtimes
drwx------ 4 root root 32 12月 11 10:44 plugins
drwx------ 2 root root  6 12月 11 10:44 containers
drwx------ 2 root root 25 12月 11 10:44 volumes
drwx------ 3 root root 22 12月 11 10:44 image
drwx------ 2 root root  6 12月 11 10:44 trust
drwxr-x--- 3 root root 19 12月 11 10:44 network
drwx------ 3 root root 40 12月 11 10:44 overlay2
drwx------ 2 root root  6 12月 11 10:44 swarm
drwx------ 2 root root 24 12月 11 10:44 builder
drwx------ 4 root root 92 12月 11 10:44 buildkit
重启docker 服务
systemctl start docker
验证docker：
root@ip-172-31-22-208 ~]# docker info
Containers: 0
 Running: 0
 Paused: 0
 Stopped: 0
Images: 0
Server Version: 18.06.1-ce
Storage Driver: overlay2
 Backing Filesystem: xfs
 Supports d_type: true
 Native Overlay Diff: true
Logging Driver: json-file
Cgroup Driver: cgroupfs
Plugins:
 Volume: local
 Network: bridge host macvlan null overlay
 Log: awslogs fluentd gcplogs gelf journald json-file logentries splunk syslog
Swarm: inactive
Runtimes: runc
Default Runtime: runc
Init Binary: docker-init
containerd version: 468a545b9edcd5932818eb9de8e72413e616e86e
runc version: 69663f0bd4b60df09991c08812a60108003fa340
init version: fec3683
Security Options:
 seccomp
  Profile: default
Kernel Version: 4.14.70-72.55.amzn2.x86_64
Operating System: Amazon Linux 2
OSType: linux
Architecture: x86_64
CPUs: 4
Total Memory: 15.67GiB
Name: ip-172-31-22-208.us-west-2.compute.internal
ID: CG7S:P5XD:FLU6:MULI:2TSI:OLRY:A6EX:SM3D:FXNB:CMEQ:MU6R:XSCW
Docker Root Dir: /data/docker
Debug Mode (client): false
Debug Mode (server): false
Registry: https://index.docker.io/v1/
Labels:
Experimental: false
Insecure Registries:
 127.0.0.0/8
Live Restore Enabled: false
安装kubeadm等
增加k8s repo
cat < /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=https://packages.cloud.google.com/yum/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=0
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
exclude=kube*
EOF
安装kubeadm, kubelet, kubectl
yum install -y kubelet kubeadm kubectl --disableexcludes=kubernetes

systemctl enable kubelet && systemctl start kubelet
验证kubeadm版本
[root@ip-172-31-22-208 ~]# kubeadm version
kubeadm version: &version.Info{Major:"1", Minor:"13", GitVersion:"v1.13.0", GitCommit:"ddf47ac13c1a9483ea035a79cd7c10005ff21a6d", GitTreeState:"clean", BuildDate:"2018-12-03T21:02:01Z", GoVersion:"go1.11.2", Compiler:"gc", Platform:"linux/amd64"}
更新 kubelet config
设置节点预留资源 ,同时为了支持 cloud-provider， 首先需要在 kubelet 的配置里做相应修改，为 /etc/sysconfig/kubelet 添加 KUBELET_EXTRA_ARGS:
KUBELET_EXTRA_ARGS=--cloud-provider=aws 
预留资源
设置cgroups
mkdir -p /sys/fs/cgroup/cpu/system.slice/kubelet.service
mkdir -p /sys/fs/cgroup/cpuacct/system.slice/kubelet.service
mkdir -p /sys/fs/cgroup/cpuset/system.slice/kubelet.service
mkdir -p /sys/fs/cgroup/memory/system.slice/kubelet.service
mkdir -p /sys/fs/cgroup/devices/system.slice/kubelet.service
mkdir -p /sys/fs/cgroup/blkio/system.slice/kubelet.service
mkdir -p /sys/fs/cgroup/hugetlb/system.slice/kubelet.service
mkdir -p /sys/fs/cgroup/systemd/system.slice/kubelet.service
在/var/lib/kubelet/config.yaml中添加如下：
enforceNodeAllocatable:
- pods
- kube-reserved
- system-reserved
kubeReservedCgroup: /system.slice/kubelet.service
systemReservedCgroup: /system.slice
systemReserved:
  cpu: 500m
  memory: 1Gi
  ephemeral-storage: 5Gi
kubeReserved:
  cpu: 500m
  memory: 1Gi
  ephemeral-storage: 5Gi
部署高可用 etcd 集群
kuberntes 系统使用 etcd 存储所有数据，本文档介绍部署一个三节点高可用 etcd 集群的步骤，这三个节点复用 kubernetes master 机器，分别命名为etcd-host0、etcd-host1、etcd-host2：

infra0: 172.31.22.208
infra1: 172.31.17.44
infra2: 172.31.22.135

使用的变量
本文档用到的变量定义如下：
export NODE_NAME=infra0 # 当前部署的机器名称(随便定义，只要能区分不同机器即可)
export NODE_IP=172.31.22.208 # 当前部署的机器 IP
export NODE_IPS="172.31.22.208 172.31.17.44 172.31.22.135" # etcd 集群所有机器 IP
# etcd 集群间通信的IP和端口
export ETCD_NODES=infra0=https://172.31.22.208:2380,infra1=https://172.31.17.44:2380,infra2=https://172.31.22.135:2380

export NODE_NAME=infra1 # 当前部署的机器名称(随便定义，只要能区分不同机器即可)
export NODE_IP=172.31.17.44 # 当前部署的机器 IP
export NODE_IPS="172.31.22.208 172.31.17.44 172.31.22.135" # etcd 集群所有机器 IP
# etcd 集群间通信的IP和端口
export ETCD_NODES=infra0=https://172.31.22.208:2380,infra1=https://172.31.17.44:2380,infra2=https://172.31.22.135:2380

export NODE_NAME=infra2 # 当前部署的机器名称(随便定义，只要能区分不同机器即可)
export NODE_IP=172.31.22.135 # 当前部署的机器 IP
export NODE_IPS="172.31.22.208 172.31.17.44 172.31.22.135" # etcd 集群所有机器 IP
# etcd 集群间通信的IP和端口
export ETCD_NODES=infra0=https://172.31.22.208:2380,infra1=https://172.31.17.44:2380,infra2=https://172.31.22.135:2380

下载二进制文件
到 https://github.com/coreos/etcd/releases 页面下载最新版本的二进制文件：
wget https://github.com/coreos/etcd/releases/download/v3.2.24/etcd-v3.2.24-linux-amd64.tar.gz
tar -xvf etcd-v3.2.24-linux-amd64.tar.gz
mv etcd-v3.2.24-linux-amd64/etcd* /usr/bin

利用kubeadm创建秘钥和证书
为kubeadm创建配置文件
使用以下脚本为每个将在其上运行etcd成员的主机生成一个kubeadm配置文件。
# Update HOST0, HOST1, and HOST2 with the IPs or resolvable names of your hosts
export HOST0=172.31.22.208
export HOST1=172.31.17.44
export HOST2=172.31.22.135

# Create temp directories to store files that will end up on other hosts.
mkdir -p /tmp/${HOST0}/ /tmp/${HOST1}/ /tmp/${HOST2}/

ETCDHOSTS=(${HOST0} ${HOST1} ${HOST2})
NAMES=("infra0" "infra1" "infra2")

for i in "${!ETCDHOSTS[@]}"; do
HOST=${ETCDHOSTS[$i]}
NAME=${NAMES[$i]}
cat << EOF > /tmp/${HOST}/kubeadmcfg.yaml
apiVersion: "kubeadm.k8s.io/v1beta1"
kind: ClusterConfiguration
etcd:
    local:
        serverCertSANs:
        - "${HOST}"
        peerCertSANs:
        - "${HOST}"
        extraArgs:
            initial-cluster: infra0=https://${ETCDHOSTS[0]}:2380,infra1=https://${ETCDHOSTS[1]}:2380,infra2=https://${ETCDHOSTS[2]}:2380
            initial-cluster-state: new
            name: ${NAME}
            listen-peer-urls: https://${HOST}:2380
            listen-client-urls: https://${HOST}:2379
            advertise-client-urls: https://${HOST}:2379
            initial-advertise-peer-urls: https://${HOST}:2380
EOF
done
生成证书颁发机构
执行如下命令：
kubeadm init phase certs etcd-ca
生成下面两个文件：

/etc/kubernetes/pki/etcd/ca.crt
/etc/kubernetes/pki/etcd/ca.key

为每个成员创建证书
kubeadm init phase certs etcd-server --config=/tmp/${HOST2}/kubeadmcfg.yaml
kubeadm init phase certs etcd-peer --config=/tmp/${HOST2}/kubeadmcfg.yaml
kubeadm init phase certs etcd-healthcheck-client --config=/tmp/${HOST2}/kubeadmcfg.yaml
kubeadm init phase certs apiserver-etcd-client --config=/tmp/${HOST2}/kubeadmcfg.yaml
cp -R /etc/kubernetes/pki /tmp/${HOST2}/
# cleanup non-reusable certificates
find /etc/kubernetes/pki -not -name ca.crt -not -name ca.key -type f -delete

kubeadm init phase certs etcd-server --config=/tmp/${HOST1}/kubeadmcfg.yaml
kubeadm init phase certs etcd-peer --config=/tmp/${HOST1}/kubeadmcfg.yaml
kubeadm init phase certs etcd-healthcheck-client --config=/tmp/${HOST1}/kubeadmcfg.yaml
kubeadm init phase certs apiserver-etcd-client --config=/tmp/${HOST1}/kubeadmcfg.yaml
cp -R /etc/kubernetes/pki /tmp/${HOST1}/
find /etc/kubernetes/pki -not -name ca.crt -not -name ca.key -type f -delete

kubeadm init phase certs etcd-server --config=/tmp/${HOST0}/kubeadmcfg.yaml
kubeadm init phase certs etcd-peer --config=/tmp/${HOST0}/kubeadmcfg.yaml
kubeadm init phase certs etcd-healthcheck-client --config=/tmp/${HOST0}/kubeadmcfg.yaml
kubeadm init phase certs apiserver-etcd-client --config=/tmp/${HOST0}/kubeadmcfg.yaml
# No need to move the certs because they are for HOST0

# clean up certs that should not be copied off this host
find /tmp/${HOST2} -name ca.key -type f -delete
find /tmp/${HOST1} -name ca.key -type f -delete
拷贝证书到对应的主机上
USER=root
CONTROL_PLANE_IPS="172.31.17.44 172.31.22.135"
for host in ${CONTROL_PLANE_IPS}; do
    scp -r /tmp/${host}/pki "${USER}"@$host:
done
$ 例如HOST0上所需文件的完整列表是：
/etc/kubernetes/pki
├── apiserver-etcd-client.crt
├── apiserver-etcd-client.key
└── etcd
    ├── ca.crt
    ├── ca.key
    ├── healthcheck-client.crt
    ├── healthcheck-client.key
    ├── peer.crt
    ├── peer.key
    ├── server.crt
    └── server.key
其他两台主机如上。
创建 etcd 的 systemd unit 文件
mkdir -p /var/lib/etcd  # 必须先创建工作目录
cat > etcd.service <

指定 etcd 的工作目录和数据目录为 /var/lib/etcd，需在启动服务前创建这个目录；
为了保证通信安全，需要指定 etcd 的公私钥(cert-file和key-file)、Peers 通信的公私钥和 CA 证书(peer-cert-file、peer-key-file、peer-trusted-ca-file)、客户端的CA证书（trusted-ca-file）；

--initial-cluster-state 值为 new 时，--name 的参数值必须位于 --initial-cluster 列表中；

启动 etcd 服务
mv etcd.service /etc/systemd/system/
systemctl daemon-reload
systemctl enable etcd
systemctl start etcd
systemctl status etcd
$
最先启动的 etcd 进程会卡住一段时间，等待其它节点上的 etcd 进程加入集群，为正常现象。
在所有的 etcd 节点重复上面的步骤，直到所有机器的 etcd 服务都已启动。
验证服务
部署完 etcd 集群后，在任一 etcd 集群节点上执行如下命令：
for ip in ${NODE_IPS}; do
  ETCDCTL_API=3 /usr/bin/etcdctl 
  --endpoints=https://${ip}:2379  
  --cacert=/etc/kubernetes/pki/etcd/ca.crt 
  --cert=/etc/kubernetes/pki/etcd/server.crt 
  --key=/etc/kubernetes/pki/etcd/server.key 
  endpoint health; 
  done
预期结果：
https://172.31.22.208:2379 is healthy: successfully committed proposal: took = 1.543275ms
https://172.31.17.44:2379 is healthy: successfully committed proposal: took = 1.883033ms
https://172.31.22.135:2379 is healthy: successfully committed proposal: took = 2.026367ms
三台 etcd 的输出均为 healthy 时表示集群服务正常（忽略 warning 信息）。
部署高可用 master集群
为kube-apiserver创建tcp负载均衡
这里选择aws的nlb。具体创建过程不再叙述。
创建结果nlb-sgt-k8sapiserver-test-4748f2f556591bb7.elb.us-west-2.amazonaws.com。
添加到变量
export LOAD_BALANCER_DNS=nlb-sgt-k8sapiserver-test-4748f2f556591bb7.elb.us-west-2.amazonaws.com
export ETCD_0_IP=172.31.22.208
export ETCD_1_IP=172.31.17.44
export ETCD_2_IP=172.31.22.135
创建 启用aws cloud-provider
cat > kubeadm-config.yaml <
创建 不启用aws cloud-provider
cat > kubeadm-config.yaml <
创建第一个master
执行
kubeadm init --config=kubeadm-config.yaml
出现以下:
设置访问证书：
mkdir -p $HOME/.kube
cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
chown $(id -u):$(id -g) $HOME/.kube/config

创建剩余master
复制证书
USER=root # customizable
CONTROL_PLANE_IPS="172.31.17.44 172.31.22.135"
for host in ${CONTROL_PLANE_IPS}; do
    scp /etc/kubernetes/pki/ca.crt "${USER}"@$host:
    scp /etc/kubernetes/pki/ca.key "${USER}"@$host:
    scp /etc/kubernetes/pki/sa.key "${USER}"@$host:
    scp /etc/kubernetes/pki/sa.pub "${USER}"@$host:
    scp /etc/kubernetes/pki/front-proxy-ca.crt "${USER}"@$host:
    scp /etc/kubernetes/pki/front-proxy-ca.key "${USER}"@$host:
    scp /etc/kubernetes/admin.conf "${USER}"@$host:
done
在剩余主机执行：
USER=root # customizable
mv /${USER}/ca.crt /etc/kubernetes/pki/
mv /${USER}/ca.key /etc/kubernetes/pki/
mv /${USER}/sa.pub /etc/kubernetes/pki/
mv /${USER}/sa.key /etc/kubernetes/pki/
mv /${USER}/front-proxy-ca.crt /etc/kubernetes/pki/
mv /${USER}/front-proxy-ca.key /etc/kubernetes/pki/
mv /${USER}/admin.conf /etc/kubernetes/admin.conf
加入控制节点：
kubeadm join nlb-sgt-k8sapiserver-test-4748f2f556591bb7.elb.us-west-2.amazonaws.com:6443 --token u9hmb3.gwfozvsz90k3yt9g --discovery-token-ca-cert-hash sha256:24c354cce46de9c1eb1a8358b9ba064166e87cf6c011fecaae3350c3910c215a  --experimental-control-plane
忘记discovery-token-ca-cert-hash？
openssl x509 -pubkey -in /etc/kubernetes/pki/ca.crt | openssl rsa -pubin -outform der 2>/dev/null | openssl dgst -sha256 -hex | sed "s/^.* //"
部署calico网络
检查aws ec2
是否关闭了src/dst checks？
配置calicoctl
下载calicoctl
curl -O -L  https://github.com/projectcalico/calicoctl/releases/download/v3.4.0/calicoctl
chmod +x calicoctl
mv calicoctl /usr/bin/
配置calico config 文件
cat > /etc/calico/calicoctl.cfg <
使用到的变量
export ETCD_KEY=$(cat /etc/kubernetes/pki/etcd/server.key | base64 | tr -d "
")
export ETCD_CERT=$(cat /etc/kubernetes/pki/etcd/server.crt | base64 | tr -d "
")
export ETCD_CA=$(cat /etc/kubernetes/pki/etcd/ca.crt | base64 | tr -d "
")
创建calico.yml
cat > calico.yml < | base64 -w 0
  etcd-key: ${ETCD_KEY}
  etcd-cert: ${ETCD_CERT}
  etcd-ca: ${ETCD_CA}

---
# This manifest installs the calico/node container, as well
# as the Calico CNI plugins and network config on
# each master and worker node in a Kubernetes cluster.
kind: DaemonSet
apiVersion: extensions/v1beta1
metadata:
  name: calico-node
  namespace: kube-system
  labels:
    k8s-app: calico-node
spec:
  selector:
    matchLabels:
      k8s-app: calico-node
  updateStrategy:
    type: RollingUpdate
    rollingUpdate:
      maxUnavailable: 1
  template:
    metadata:
      labels:
        k8s-app: calico-node
      annotations:
        # This, along with the CriticalAddonsOnly toleration below,
        # marks the pod as a critical add-on, ensuring it gets
        # priority scheduling and that its resources are reserved
        # if it ever gets evicted.
        scheduler.alpha.kubernetes.io/critical-pod: ""
    spec:
      nodeSelector:
        beta.kubernetes.io/os: linux
      hostNetwork: true
      tolerations:
        # Make sure calico-node gets scheduled on all nodes.
        - effect: NoSchedule
          operator: Exists
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        - effect: NoExecute
          operator: Exists
      serviceAccountName: calico-node
      # Minimize downtime during a rolling upgrade or deletion; tell Kubernetes to do a "force
      # deletion": https://kubernetes.io/docs/concepts/workloads/pods/pod/#termination-of-pods.
      terminationGracePeriodSeconds: 0
      initContainers:
        # This container installs the Calico CNI binaries
        # and CNI network config file on each node.
        - name: install-cni
          image: quay.io/calico/cni:v3.4.0
          command: ["/install-cni.sh"]
          env:
            # Name of the CNI config file to create.
            - name: CNI_CONF_NAME
              value: "10-calico.conflist"
            # The CNI network config to install on each node.
            - name: CNI_NETWORK_CONFIG
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: cni_network_config
            # The location of the Calico etcd cluster.
            - name: ETCD_ENDPOINTS
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_endpoints
            # CNI MTU Config variable
            - name: CNI_MTU
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: veth_mtu
            # Prevents the container from sleeping forever.
            - name: SLEEP
              value: "false"
          volumeMounts:
            - mountPath: /host/opt/cni/bin
              name: cni-bin-dir
            - mountPath: /host/etc/cni/net.d
              name: cni-net-dir
            - mountPath: /calico-secrets
              name: etcd-certs
      containers:
        # Runs calico/node container on each Kubernetes node.  This
        # container programs network policy and routes on each
        # host.
        - name: calico-node
          image: quay.io/calico/node:v3.4.0
          env:
            # The location of the Calico etcd cluster.
            - name: ETCD_ENDPOINTS
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_endpoints
            # Location of the CA certificate for etcd.
            - name: ETCD_CA_CERT_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_ca
            # Location of the client key for etcd.
            - name: ETCD_KEY_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_key
            # Location of the client certificate for etcd.
            - name: ETCD_CERT_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_cert
            # Set noderef for node controller.
            - name: CALICO_K8S_NODE_REF
              valueFrom:
                fieldRef:
                  fieldPath: spec.nodeName
            # Choose the backend to use.
            - name: CALICO_NETWORKING_BACKEND
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: calico_backend
            # Cluster type to identify the deployment type
            - name: CLUSTER_TYPE
              value: "k8s,bgp"
            # Auto-detect the BGP IP address.
            - name: IP
              value: "autodetect"
            # Enable IPIP
            - name: CALICO_IPV4POOL_IPIP
              value: "Always"
            # Set MTU for tunnel device used if ipip is enabled
            - name: FELIX_IPINIPMTU
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: veth_mtu
            # The default IPv4 pool to create on startup if none exists. Pod IPs will be
            # chosen from this range. Changing this value after installation will have
            # no effect. This should fall within --cluster-cidr.
            - name: CALICO_IPV4POOL_CIDR
              value: "192.168.0.0/16"
            # Disable file logging so `kubectl logs` works.
            - name: CALICO_DISABLE_FILE_LOGGING
              value: "true"
            # Set Felix endpoint to host default action to ACCEPT.
            - name: FELIX_DEFAULTENDPOINTTOHOSTACTION
              value: "ACCEPT"
            # Disable IPv6 on Kubernetes.
            - name: FELIX_IPV6SUPPORT
              value: "false"
            # Set Felix logging to "info"
            - name: FELIX_LOGSEVERITYSCREEN
              value: "info"
            - name: FELIX_HEALTHENABLED
              value: "true"
          securityContext:
            privileged: true
          resources:
            requests:
              cpu: 250m
          livenessProbe:
            httpGet:
              path: /liveness
              port: 9099
              host: localhost
            periodSeconds: 10
            initialDelaySeconds: 10
            failureThreshold: 6
          readinessProbe:
            exec:
              command:
              - /bin/calico-node
              - -bird-ready
              - -felix-ready
            periodSeconds: 10
          volumeMounts:
            - mountPath: /lib/modules
              name: lib-modules
              readOnly: true
            - mountPath: /run/xtables.lock
              name: xtables-lock
              readOnly: false
            - mountPath: /var/run/calico
              name: var-run-calico
              readOnly: false
            - mountPath: /var/lib/calico
              name: var-lib-calico
              readOnly: false
            - mountPath: /calico-secrets
              name: etcd-certs
      volumes:
        # Used by calico/node.
        - name: lib-modules
          hostPath:
            path: /lib/modules
        - name: var-run-calico
          hostPath:
            path: /var/run/calico
        - name: var-lib-calico
          hostPath:
            path: /var/lib/calico
        - name: xtables-lock
          hostPath:
            path: /run/xtables.lock
            type: FileOrCreate
        # Used to install CNI.
        - name: cni-bin-dir
          hostPath:
            path: /opt/cni/bin
        - name: cni-net-dir
          hostPath:
            path: /etc/cni/net.d
        # Mount in the etcd TLS secrets with mode 400.
        # See https://kubernetes.io/docs/concepts/configuration/secret/
        - name: etcd-certs
          secret:
            secretName: calico-etcd-secrets
            defaultMode: 0400
---

apiVersion: v1
kind: ServiceAccount
metadata:
  name: calico-node
  namespace: kube-system

---
# This manifest deploys the Calico Kubernetes controllers.
# See https://github.com/projectcalico/kube-controllers
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: calico-kube-controllers
  namespace: kube-system
  labels:
    k8s-app: calico-kube-controllers
  annotations:
    scheduler.alpha.kubernetes.io/critical-pod: ""
spec:
  # The controllers can only have a single active instance.
  replicas: 1
  strategy:
    type: Recreate
  template:
    metadata:
      name: calico-kube-controllers
      namespace: kube-system
      labels:
        k8s-app: calico-kube-controllers
    spec:
      nodeSelector:
        beta.kubernetes.io/os: linux
      # The controllers must run in the host network namespace so that
      # it isn"t governed by policy that would prevent it from working.
      hostNetwork: true
      tolerations:
        # Mark the pod as a critical add-on for rescheduling.
        - key: CriticalAddonsOnly
          operator: Exists
        - key: node-role.kubernetes.io/master
          effect: NoSchedule
      serviceAccountName: calico-kube-controllers
      containers:
        - name: calico-kube-controllers
          image: quay.io/calico/kube-controllers:v3.4.0
          env:
            # The location of the Calico etcd cluster.
            - name: ETCD_ENDPOINTS
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_endpoints
            # Location of the CA certificate for etcd.
            - name: ETCD_CA_CERT_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_ca
            # Location of the client key for etcd.
            - name: ETCD_KEY_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_key
            # Location of the client certificate for etcd.
            - name: ETCD_CERT_FILE
              valueFrom:
                configMapKeyRef:
                  name: calico-config
                  key: etcd_cert
            # Choose which controllers to run.
            - name: ENABLED_CONTROLLERS
              value: policy,namespace,serviceaccount,workloadendpoint,node
          volumeMounts:
            # Mount in the etcd TLS secrets.
            - mountPath: /calico-secrets
              name: etcd-certs
          readinessProbe:
            exec:
              command:
              - /usr/bin/check-status
              - -r
      volumes:
        # Mount in the etcd TLS secrets with mode 400.
        # See https://kubernetes.io/docs/concepts/configuration/secret/
        - name: etcd-certs
          secret:
            secretName: calico-etcd-secrets
            defaultMode: 0400

---

apiVersion: v1
kind: ServiceAccount
metadata:
  name: calico-kube-controllers
  namespace: kube-system
---

# Include a clusterrole for the kube-controllers component,
# and bind it to the calico-kube-controllers serviceaccount.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: calico-kube-controllers
rules:
  # Pods are monitored for changing labels.
  # The node controller monitors Kubernetes nodes.
  # Namespace and serviceaccount labels are used for policy.
  - apiGroups:
      - ""
    resources:
      - pods
      - nodes
      - namespaces
      - serviceaccounts
    verbs:
      - watch
      - list
  # Watch for changes to Kubernetes NetworkPolicies.
  - apiGroups:
      - networking.k8s.io
    resources:
      - networkpolicies
    verbs:
      - watch
      - list
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: calico-kube-controllers
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: calico-kube-controllers
subjects:
- kind: ServiceAccount
  name: calico-kube-controllers
  namespace: kube-system
---
# Include a clusterrole for the calico-node DaemonSet,
# and bind it to the calico-node serviceaccount.
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: calico-node
rules:
  # The CNI plugin needs to get pods, nodes, and namespaces.
  - apiGroups: [""]
    resources:
      - pods
      - nodes
      - namespaces
    verbs:
      - get
  - apiGroups: [""]
    resources:
      - endpoints
      - services
    verbs:
      # Used to discover service IPs for advertisement.
      - watch
      - list
  - apiGroups: [""]
    resources:
      - nodes/status
    verbs:
      # Needed for clearing NodeNetworkUnavailable flag.
      - patch
---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRoleBinding
metadata:
  name: calico-node
roleRef:
  apiGroup: rbac.authorization.k8s.io
  kind: ClusterRole
  name: calico-node
subjects:
- kind: ServiceAccount
  name: calico-node
  namespace: kube-system
---

EOF
部署calico
kubectl apply -f calico.yml
设置ippool
执行：
calicoctl apply -f - << EOF
apiVersion: projectcalico.org/v3
kind: IPPool
metadata:
  name: default-ipv4-ippool
spec:
  cidr: 192.168.0.0/16
  ipipMode: CrossSubnet
  natOutgoing: true
EOF
部署node节点
执行主机设置的所有项。
执行加入操作：
kubeadm join nlb-sgt-k8sapiserver-test-4748f2f556591bb7.elb.us-west-2.amazonaws.com:6443 --token u9hmb3.gwfozvsz90k3yt9g --discovery-token-ca-cert-hash sha256:24c354cce46de9c1eb1a8358b9ba064166e87cf6c011fecaae3350c3910c215a

验证：
 kubectl get nodes
NAME                                          STATUS   ROLES    AGE     VERSION
ip-172-31-17-44.us-west-2.compute.internal    Ready    master   4m2s    v1.13.0
ip-172-31-22-135.us-west-2.compute.internal   Ready    master   3m59s   v1.13.0
ip-172-31-22-208.us-west-2.compute.internal   Ready    master   16h     v1.13.0
ip-172-31-29-58.us-west-2.compute.internal    Ready       14h     v1.13.0
部署addon
部署aws的sts
kubectl apply -f https://raw.githubusercontent.com/kubernetes/kubernetes/master/cluster/addons/storage-class/aws/default.yaml
创建alb-ingress-controller
为subnet打标签
标记AWS子网以允许入口控制器自动发现用于ALB的子网。

kubernetes.io/cluster/${cluster-name} must be set to owned or shared
kubernetes.io/role/internal-elb must be set to 1 or `` for internal LoadBalancers
kubernetes.io/role/elb must be set to 1 or `` for internet-facing LoadBalancers

rbac
kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/aws-alb-ingress-controller/v1.0.1/docs/examples/rbac-role.yaml
按照如下yaml创建
# Application Load Balancer (ALB) Ingress Controller Deployment Manifest.
# This manifest details sensible defaults for deploying an ALB Ingress Controller.
# GitHub: https://github.com/kubernetes-sigs/aws-alb-ingress-controller
apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: alb-ingress-controller
  name: alb-ingress-controller
  # Namespace the ALB Ingress Controller should run in. Does not impact which
  # namespaces it"s able to resolve ingress resource for. For limiting ingress
  # namespace scope, see --watch-namespace.
  namespace: kube-system
  annotations:
    scheduler.alpha.kubernetes.io/critical-pod: ""
spec:
  replicas: 1
  selector:
    matchLabels:
      app: alb-ingress-controller
  strategy:
    rollingUpdate:
      maxSurge: 1
      maxUnavailable: 1
    type: RollingUpdate
  template:
    metadata:
      annotations:
        iam.amazonaws.com/role: arn:aws:iam::1234567:role/Role-KubernetesIngressController-test
      labels:
        app: alb-ingress-controller
    spec:
      containers:
        - args:
            # Limit the namespace where this ALB Ingress Controller deployment will
            # resolve ingress resources. If left commented, all namespaces are used.
            # - --watch-namespace=your-k8s-namespace

            # Setting the ingress-class flag below ensures that only ingress resources with the
            # annotation kubernetes.io/ingress.class: "alb" are respected by the controller. You may
            # choose any class you"d like for this controller to respect.
            - --ingress-class=alb

            # Name of your cluster. Used when naming resources created
            # by the ALB Ingress Controller, providing distinction between
            # clusters.
            - --cluster-name=k8s-us-west-test-1

            # AWS VPC ID this ingress controller will use to create AWS resources.
            # If unspecified, it will be discovered from ec2metadata.
            # - --aws-vpc-id=vpc-xxxxxx

            # AWS region this ingress controller will operate in.
            # If unspecified, it will be discovered from ec2metadata.
            # List of regions: http://docs.aws.amazon.com/general/latest/gr/rande.html#vpc_region
            # - --aws-region=us-west-1

            # Enables logging on all outbound requests sent to the AWS API.
            # If logging is desired, set to true.
            # - ---aws-api-debug
            # Maximum number of times to retry the aws calls.
            # defaults to 10.
            # - --aws-max-retries=10
          env:
            # AWS key id for authenticating with the AWS API.
            # This is only here for examples. It"s recommended you instead use
            # a project like kube2iam for granting access.
            #- name: AWS_ACCESS_KEY_ID
            #  value: KEYVALUE

            # AWS key secret for authenticating with the AWS API.
            # This is only here for examples. It"s recommended you instead use
            # a project like kube2iam for granting access.
            #- name: AWS_SECRET_ACCESS_KEY
            #  value: SECRETVALUE
          # Repository location of the ALB Ingress Controller.
          image: 894847497797.dkr.ecr.us-west-2.amazonaws.com/aws-alb-ingress-controller:v1.0.1
          imagePullPolicy: Always
          name: server
          resources: {}
          terminationMessagePath: /dev/termination-log
      dnsPolicy: ClusterFirst
      restartPolicy: Always
      securityContext: {}
      terminationGracePeriodSeconds: 30
      serviceAccountName: alb-ingress
      serviceAccount: alb-ingress
注意cluster-name 指定集群name。
创建dashbord
kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml

需要创建一个admin用户并授予admin角色绑定，使用下面的yaml文件创建admin用户并赋予他管理员权限，然后可以通过token登陆dashbaord，该文件见admin-role.yaml
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: admin
  annotations:
    rbac.authorization.kubernetes.io/autoupdate: "true"
roleRef:
  kind: ClusterRole
  name: cluster-admin
  apiGroup: rbac.authorization.k8s.io
subjects:
- kind: ServiceAccount
  name: admin
  namespace: kube-system
---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: admin
  namespace: kube-system
  labels:
    kubernetes.io/cluster-service: "true"
    addonmanager.kubernetes.io/mode: Reconcile

获取token
kubectl -n kube-system get secret|grep admin-token
admin-token-cs4gs                                kubernetes.io/service-account-token   3      10m

kubectl describe secret admin-token-cs4gs -n kube-system
重新部署操作
kubeadm reset

iptables -F && iptables -t nat -F && iptables -t mangle -F && iptables -X

ipvsadm --clear

ifconfig tunl0 down

ip link delete tunl0

升级kubeadm等
升级kubeadm
export VERSION=$(curl -sSL https://dl.k8s.io/release/stable.txt) # or manually specify a released Kubernetes version
export ARCH=amd64 # or: arm, arm64, ppc64le, s390x
curl -sSL https://dl.k8s.io/release/${VERSION}/bin/linux/${ARCH}/kubeadm > /usr/bin/kubeadm
chmod a+rx /usr/bin/kubeadm
升级kubectl
export VERSION=$(curl -sSL https://dl.k8s.io/release/stable.txt) # or manually specify a released Kubernetes version
export ARCH=amd64 # or: arm, arm64, ppc64le, s390x
curl -sSL https://dl.k8s.io/release/${VERSION}/bin/linux/${ARCH}/kubectl > /usr/bin/kubectl
chmod a+rx /usr/bin/kubectl
升级kubelet
export VERSION=$(curl -sSL https://dl.k8s.io/release/stable.txt) # or manually specify a released Kubernetes version
export ARCH=amd64 # or: arm, arm64, ppc64le, s390x
curl -sSL https://dl.k8s.io/release/${VERSION}/bin/linux/${ARCH}/kubelet > /usr/bin/kubelet
chmod a+rx /usr/bin/kubelet