kafka k8s 部署 集群外无法访问

192.168.168.152 node

192.168.168.153 node

安装步骤

准备工作,首先安装docker

安装docker后才能安装k8s集群(这个 总觉得有点不对,k8s还支持rkt,不仅仅支持docker)

1.安装docker

yum -y install docker-engine

2.k8s集群安装

2.1 master安装工作

2.1.1 etcd服务

etcd做为Kubernetes集群的主要服务，在安装Kubernetes各服务前需要首先安装和启动

2.1.1.1 下载etcd并复制到/usr/bin

wget https://github.com/etcd-io/etcd/releases/download/v3.3.9/etcd-v3.3.9-linux-amd64.tar.gz

将将etcd和etcdctl文件复制到/usr/bin目录

cp yourpath/etcd yourpath/etcdctl /usr/bin
2.1.1.2配置systemd服务文件
vim /usr/lib/systemd/system/etcd.service
[Unit]
Description=Etcd Server
After=network.target
[Service]
Type=simple
EnvironmentFile=-/etc/etcd/etcd.conf
WorkingDirectory=/var/lib/etcd/
ExecStart=/usr/bin/etcd
Restart=on-failure
[Install]
WantedBy=multi-user.target
2.1.1.3启动与测试etcd服务
systemctl daemon-reload
systemctl enable etcd.service
mkdir -p /var/lib/etcd/
systemctl start etcd.service
etcdctl cluster-health
2.1.2kube-apiserver服务
2.1.2.1下载并复制
下载
wget https://dl.k8s.io/v1.19.0/kubernetes-server-linux-amd64.tar.gz
解压
tar -zxvf kubernetes-server-linux-amd64.tar.gz
解压后将kube-apiserver、kube-controller-manager、kube-scheduler以及管理要使用的kubectl二进制命令文件
放到/usr/bin目录，即完成这几个服务的安装。
cp kube-apiserver kube-controller-manager kube-scheduler kubectl /usr/bin/
2.1.2.2配置
下面是对kube-apiserver服务进行配置
编辑systemd服务文件
vim /usr/lib/systemd/system/kube-apiserver.service
[Unit]
Description=Kubernetes API Server
Documentation=https://github.com/kubernetes/kubernetes
After=etcd.service
Wants=etcd.service
[Service]
EnvironmentFile=/etc/kubernetes/apiserver
ExecStart=/usr/bin/kube-apiserver $KUBE_API_ARGS
Restart=on-failure
Type=notify
[Install]
WantedBy=multi-user.target
2.1.2.3配置文件
创建目录：mkdir /etc/kubernetes
vim /etc/kubernetes/apiserver
KUBE_API_ARGS=“–storage-backend=etcd3 --etcd-servers=http://127.0.0.1:2379 --insecure-bind-address=0.0.0.0 --insecure-port=8080 --service-cluster-ip-range=169.169.0.0/16 --service-node-port-range=1-65535 --admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,DefaultStorageClass,ResourceQuota --logtostderr=true --log-dir=/var/log/kubernetes --v=2”
2.1.3kube-controller-manager服务
kube-controller-manager服务依赖于kube-apiserver服务：
2.1.3.1配置systemd服务文件：
vim /usr/lib/systemd/system/kube-controller-manager.service
[Unit]
Description=Kubernetes Controller Manager
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=kube-apiserver.service
Requires=kube-apiserver.service
[Service]
EnvironmentFile=-/etc/kubernetes/controller-manager
ExecStart=/usr/bin/kube-controller-manager $KUBE_CONTROLLER_MANAGER_ARGS
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
2.1.3.2配置文件
vim /etc/kubernetes/controller-manager
KUBE_CONTROLLER_MANAGER_ARGS=“–master=http://192.168.168.151:8080 --logtostderr=true --log-dir=/var/log/kubernetes --v=2”
2.1.4 kube-scheduler服务
kube-scheduler服务也依赖于kube-apiserver服务。
2.1.4.1配置systemd服务文件：
vim /usr/lib/systemd/system/kube-scheduler.service
[Unit]
Description=Kubernetes Scheduler
Documentation=https://github.com/GoogleCloudPlatform/kubernetes
After=kube-apiserver.service
Requires=kube-apiserver.service
[Service]
EnvironmentFile=-/etc/kubernetes/scheduler
ExecStart=/usr/bin/kube-scheduler $KUBE_SCHEDULER_ARGS
Restart=on-failure
LimitNOFILE=65536
[Install]
WantedBy=multi-user.target
2.1.4.2配置文件：
vim /etc/kubernetes/scheduler
KUBE_SCHEDULER_ARGS=“–master=http://192.168.168.151:8080 --logtostderr=true --log-dir=/var/log/kubernetes --v=2”
2.1.5启动,完成以上配置后，按顺序启动服务
systemctl daemon-reload
systemctl enable kube-apiserver.service
systemctl start kube-apiserver.service
systemctl enable kube-controller-manager.service
systemctl start kube-controller-manager.service
systemctl enable kube-scheduler.service
systemctl start kube-scheduler.service
检查每个服务的健康状态：
systemctl status kube-apiserver.service
systemctl status kube-controller-manager.service
systemctl status kube-scheduler.service
2.2 node安装工作(以192.168.168.152为例)

2.2.1准备工作