kubelet 安裝kubernetes --k8s

#vim /etc/docker/daemon.json

{

  "exec-opts": ["native.cgroupdriver=cgroupfs"]

}

#systemctl enable docker && systemctl start docker

#/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=1

gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg

備註這兩個需要×××：

 packages.cloud.google.com

 raw.githubusercontent.com

#setenforce 0

# yum install -y kubelet kubeadm kubectl ebtables

# systemctl enable kubelet && systemctl start kubelet

#sysctl --system   關閉防火牆

# systemctl disable iptables-services firewalld 

# systemctl stop iptables-services firewalld

#rm -r -f /etc/kubernetes /var/lib/kubelet /var/lib/etcd /etc/etcd 

# swapoff -a    關閉swap分區

禁用ipv6: 

# /etc/sysctl.d/k8s.conf

net.bridge.bridge-nf-call-ip6tables = 1

net.bridge.bridge-nf-call-iptables = 1




初始化你的master 

#  kubeadm init –pod-network-cidr=10.244.0.0/16

#  mkdir -p $HOME/.kube

#  cp -i /etc/kubernetes/admin.conf $HOME/.kube/config

#  chown $(id -u):$(id -g) $HOME/.kube/config


查看服務狀態：

#kubectl get pods --all-namespaces -o wide

創建calico 網絡

1. 
   

2. 下載 rabc yaml: https://docs.projectcalico.org/v3.1/getting-started/kubernetes/installation/hosted/rbac-kdd.yaml

3. 下載 calico yaml https://docs.projectcalico.org/v3.1/getting-started/kubernetes/installation/hosted/kubernetes-datastore/calico-networking/1.7/calico.yaml

4. 修改 calico.yaml 的網段爲 10.244.0.0/16。 key爲 CALICO_IPV4POOL_CIDR 

5. 安裝: kubectl apply -f rbac-kdd.yaml && kubectl apply -f calico.yaml 

   #systemctl status kubelet

   #systemctl restart kubelet

6. 重啓kube dns pod: 只需要強制刪除dns pod即可重啓

   #kubectl delete pod --grace-period=0 --force --namespace=kube-system kube-dns-6f4fd4bdf-kn7rs

7. 開啓master節點允許部署pod: kubectl taint nodes --all node-role.kubernetes.io/master-

8. 安裝kube-dashboard: 

9. 確定以前是否開啓proxy, 8001端口沒有被佔用

10. 開啓代理 - kubectl proxy --address='192.168.35.71' --accept-hosts='^*$' &

    #kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/master/src/deploy/recommended/kubernetes-dashboard.yaml

11. 應用dashboard權限: kubectl apply -f kube-dashboard-access.yaml

12. 默認dashboard只能本機訪問, 

13.  其他可選安裝設置
    

1. --service-cluster-ip-range=10.254.0.0/16

2. --service-node-port-range=30000-32767

##############節點加入到集羣######

1. yum install -y docker 參考 CentOS Install Docker 

2. yum install -y kubeadm 1.11.1-0

3. yum install -y kubectl 1.11.1-0

4. yum install -y kubelet 1.11.1-0

• 2.0 啓動依賴

1. setenforce 0

2. systemctl enable docker && systemctl start docker

3. systemctl enable kubelet && systemctl start kubelet

• 3.0 安裝依賴鏡像

1. 依賴鏡像 -  calico部分

    

2. 設置

   echo '1' > /proc/sys/net/bridge/bridge-nf-call-iptables

• 4.0 執行join

1. shell

   kubeadm join 192.168.35.51:6443 --token tpbi9f.3ot14qcehsmts4mj --discovery-token-ca-cert-hash sha256:xxxxx

k8s安裝istio：

#mkdir -p $HOME/istio/helm

#helm template install/kubernetes/helm/istio --name istio --namespace istio-system > $HOME/istio/helm/istio.yaml

#kc apply -f $HOME/istio/helm/istio.yaml




#helm template install/kubernetes/helm/istio --name istio --namespace istio-system \
  --set global.proxy.includeIPRanges="10.244.0.1/16" -x templates/sidecar-injector-configmap.yaml \
  > $HOME/istio/helm/istio-ip-ranges.yaml
#kc apply -f $HOME/istio/helm/istio-ip-ranges.yaml




k8s集羣監控：

• 監控工具prometheus+Gatana

• 部署鏈接：https://github.com/giantswarm/kubernetes-prometheus

• kubectl get svc -o wide -n monitoring