k8s-离线安装k8s

1.开始

目标

coreos的igniton.json有很强的可配置性，通过安装时指定集群配置的ignition.json，

安装完成后打开https://{{Master_IP}}:6443/ui直接访问k8s集群。

 

背景

coreos的官网有一篇裸机安装coreos并部署k8s的教程，CoreOS + Kubernetes Step By Step，

请确保已阅，下图是在ignition.json中配置的实际流程。

服务

说明

HTTP Server

提供aci镜像下载，以及其他文件下载

TimeZone.Service

将时区设置为上海

Registry.Service

在rkt容器中运行，docker镜像服务，供整个集群下载k8s镜像

ETCD.Service

在rkt容器中运行，集群发现服务

Flannel.Service

在rkt容器中运行，为docker容器设置网络

Docker.Service

 

Kubelet.Service

在rkt容器中运行，K8S的基础服务kubelet

kubelet-gac.Service

为K8S基础服务预缓存镜像gcr.io/google_containers

kubelet-ssl.Service

为K8S制作证书

kubelet-kubectl.Service

为K8S的Master节点安装kubectl工具

kubelet-addon.Service

为K8S集群安装dns，dashboard，heapster等服务

2.部署

准备http服务器

http://192.168.3.235/k8s

文件

说明

./registry-2.6.1.tgz

registry-2.6.1.aci

./etcd-v3.2.0.tgz

etcd-v3.2.0.aci

./flannel-v0.7.1.tgz

flannel-v0.7.1.aci

./hyperkube-v1.7.3.tgz

hyperkube-v1.7.3.aci

./registry-data-v1.7.3.tgz

./registry/data(pause,hyperkube,dns,dashboard,heapster)

./kubectl-v1.7.0.tgz

kubectl-v1.7.0

aci , rkt的标准镜像，coreos启动时把aci镜像下载到本地，这样不需要请求镜像服务即可运行服务；

registry-data , 在互联网环境下预下载好安装k8s所需镜像，然后将registry/data导出，服务器下载后，待registry服务启动将能提供k8s镜像给集群内节点下载；

kubectl , kubectl工具目前是1.7.0版本

 

准备pem格式根证书

文件

示例

./ca.key

-----BEGIN RSA PRIVATE KEY-----

MIIEpAIBAAKCAQEA4dafEVttwUB7eXofPzmpdmR533+Imn0KuMg4XhtB0sdyjKFf

…

PaDJxByNh84ysmAfuadDgcXNrF/8fDupIA0wf2qGLDlttahr2DA7Ug==

-----END RSA PRIVATE KEY-----

./ca.pem

-----BEGIN CERTIFICATE-----

MIIC+TCCAeECCQDjC0MVaVasEjANBgkqhkiG9w0BAQsFADASMRAwDgYDVQQDDAdr

…

RousxpNr1QvU6EwLupKYZc006snlVh4//r9QNjh5QRxRhl71XafR1S3pamBo

-----END CERTIFICATE-----

$ openssl genrsa -out ca.key 2048

$ openssl req -x509 -new -nodes -key ca.key -days 36500 -out ca.pem -subj "/CN=kube-ca"
     

 

为CoreOS分配IP

Match : eth0

DNS : 192.168.3.1

Gateway : 192.168.3.1

节点

IP

HOSTNAME

Worker

192.168.3.101

systech01

Master

192.168.3.102

systech02

Worker

192.168.3.103

systech03

 

master.yml模版

参数

示例

{{ MASTER_HOSTNAME }}

systech01

{{ MASTER_IP }}

192.168.3.102

{{ ETCD_CLUSTER }}

systech01=http://192.168.3.101:2380,systech02=http://192.168.3.102:2380,systech03=http://192.168.3.103:2380

{{ CA_KEY }}

-----BEGIN RSA PRIVATE KEY-----

MIIEpAIBAAKCAQEA4dafEVttwUB7eXofPzmpdmR533+Imn0KuMg4XhtB0sdyjKFf

…

PaDJxByNh84ysmAfuadDgcXNrF/8fDupIA0wf2qGLDlttahr2DA7Ug==

-----END RSA PRIVATE KEY-----

{{ CA_PEM }}

-----BEGIN CERTIFICATE-----

MIIC+TCCAeECCQDjC0MVaVasEjANBgkqhkiG9w0BAQsFADASMRAwDgYDVQQDDAdr

…

RousxpNr1QvU6EwLupKYZc006snlVh4//r9QNjh5QRxRhl71XafR1S3pamBo

-----END CERTIFICATE-----

{{ NETWORK_MATCH }}

eth0

{{ NETWORK_DNS }}

192.168.3.1

{{ NETWORK_GATEWAY }}

192.168.3.1

{{ HTTP_SERVER_LOCAL }}

http://192.168.3.235/k8s

 
passwd:
  users:           
    - name: "root"
      password_hash: "$1$maTXmv6V$4UuGlRDpBZtipAhlPZ2/J0"
update:
  group:  "stable"
  server: "https://public.update.core-os.net/v1/update/"
locksmith:
  reboot_strategy: "etcd-lock"
  window_start:    "Sun 1:00"
  window_length:   "2h"              
storage:
  files:
  - filesystem: "root"
    path:       "/etc/hostname"
    mode:       0644
    contents:
      inline: {{ MASTER_HOSTNAME }}
  - filesystem: "root"
    path:       "/etc/hosts"
    mode:       0644
    contents:
      inline: |
        127.0.0.1	localhost
        127.0.0.1 {{ MASTER_HOSTNAME }}
        {{ MASTER_IP }} reg.local    
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/registry.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 
        HTTP_SERVER="${HTTP_SERVER:-http://192.168.3.100:8000/k8s}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/registry.session ]]; then
          exit 0
        fi

        mkdir -p /etc/kubernetes/downloads
        curl $HTTP_SERVER/registry-2.6.1.tgz > /etc/kubernetes/downloads/registry-2.6.1.tgz
        curl $HTTP_SERVER/registry-data-v1.7.3.tgz > /etc/kubernetes/downloads/registry-data-v1.7.3.tgz
        cd /etc/kubernetes/downloads && tar -xzf /etc/kubernetes/downloads/registry-2.6.1.tgz
        cd /etc/kubernetes/downloads && tar -xzf /etc/kubernetes/downloads/registry-data-v1.7.3.tgz
        mkdir -p /home/docker/registry
        mv -n /etc/kubernetes/downloads/data /home/docker/registry/data

        touch $KUBELET_SESSION/registry.session     
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/kubelet-gac.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/kubelet-gac.session ]]; then
          exit 0
        fi

                docker pull reg.local:5000/k8s/pause-amd64:3.0
        docker tag reg.local:5000/k8s/pause-amd64:3.0 gcr.io/google_containers/pause-amd64:3.0
        docker rmi reg.local:5000/k8s/pause-amd64:3.0
                

        touch $KUBELET_SESSION/kubelet-gac.session             
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/etcd3.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 
        HTTP_SERVER="${HTTP_SERVER:-http://192.168.3.100:8000/k8s}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/etcd3.session ]]; then
          exit 0
        fi

        mkdir -p /etc/kubernetes/downloads
        curl $HTTP_SERVER/etcd-v3.2.0.tgz > /etc/kubernetes/downloads/etcd-v3.2.0.tgz
        cd /etc/kubernetes/downloads && tar -xzf /etc/kubernetes/downloads/etcd-v3.2.0.tgz

        touch $KUBELET_SESSION/etcd3.session        
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/flannel.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 
        HTTP_SERVER="${HTTP_SERVER:-http://192.168.3.100:8000/k8s}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/flannel.session ]]; then
          exit 0
        fi

        mkdir -p /etc/kubernetes/downloads
        curl $HTTP_SERVER/flannel-v0.7.1.tgz > /etc/kubernetes/downloads/flannel-v0.7.1.tgz
        cd /etc/kubernetes/downloads && tar -xzf /etc/kubernetes/downloads/flannel-v0.7.1.tgz

        touch $KUBELET_SESSION/flannel.session      
  - filesystem: "root"
    path:       "/etc/kubernetes/cni/net.d/10-flannel.conf"
    mode:       0755
    contents:
      inline: |
        {
          "name": "podnet",
          "type": "flannel",
          "delegate": {
              "isDefaultGateway": true
          }
        }               
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/kubelet.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 
        HTTP_SERVER="${HTTP_SERVER:-http://192.168.3.100:8000/k8s}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/kubelet.session ]]; then
          exit 0
        fi

        mkdir -p /etc/kubernetes/downloads
        curl $HTTP_SERVER/hyperkube-v1.7.3.tgz > /etc/kubernetes/downloads/hyperkube-v1.7.3.tgz
        cd /etc/kubernetes/downloads && tar -xzf /etc/kubernetes/downloads/hyperkube-v1.7.3.tgz

        touch $KUBELET_SESSION/kubelet.session
  - filesystem: "root"
    path:       "/etc/kubernetes/manifests/kube-apiserver.yaml"
    mode:       0644
    contents:
      inline: |
        apiVersion: v1
        kind: Pod
        metadata:
          name: kube-apiserver
          namespace: kube-system
        spec:
          hostNetwork: true
          containers:
          - name: kube-apiserver
            image: reg.local:5000/k8s/hyperkube:v1.7.3
            command:
            - /hyperkube
            - apiserver
            - --bind-address=0.0.0.0
            - --etcd-servers=http://{{ MASTER_IP }}:2379
            - --allow-privileged=true
            - --service-cluster-ip-range=10.3.0.0/24
            - --service-node-port-range=0-32767
            - --secure-port=6443
            - --advertise-address={{ MASTER_IP }}
            - --admission-control=NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,ResourceQuota
            - --authorization-mode=RBAC
            - --tls-cert-file=/etc/kubernetes/ssl/apiserver.pem
            - --tls-private-key-file=/etc/kubernetes/ssl/apiserver.key
            - --client-ca-file=/etc/kubernetes/ssl/ca.pem
            - --service-account-key-file=/etc/kubernetes/ssl/apiserver.key
            - --basic-auth-file=/etc/kubernetes/ssl/admin.csv
            - --anonymous-auth=false
            - --runtime-config=extensions/v1beta1=true,extensions/v1beta1/networkpolicies=true,rbac.authorization.k8s.io/v1beta1=true
            ports:
            - containerPort: 6443
              hostPort: 6443
              name: https
            - containerPort: 8080
              hostPort: 8080
              name: local
            volumeMounts:
            - mountPath: /etc/kubernetes/ssl
              name: ssl-certs-kubernetes
              readOnly: true
            - mountPath: /etc/ssl/certs
              name: ssl-certs-host
              readOnly: true
          volumes:
          - hostPath:
              path: /etc/kubernetes/ssl
            name: ssl-certs-kubernetes
          - hostPath:
              path: /usr/share/ca-certificates
            name: ssl-certs-host    
  - filesystem: "root"
    path:       "/etc/kubernetes/manifests/kube-proxy.yaml"
    mode:       0644
    contents:
      inline: |
        ---
        apiVersion: v1
        kind: Pod
        metadata:
          name: kube-proxy
          namespace: kube-system
        spec:
          hostNetwork: true
          containers:
          - name: kube-proxy
            image: reg.local:5000/k8s/hyperkube:v1.7.3
            command:
            - /hyperkube
            - proxy
            - --master=http://127.0.0.1:8080
            securityContext:
              privileged: true
            volumeMounts:
            - mountPath: /etc/ssl/certs
              name: ssl-certs-host
              readOnly: true
          volumes:
          - hostPath:
              path: /usr/share/ca-certificates
            name: ssl-certs-host       
  - filesystem: "root"
    path:       "/etc/kubernetes/manifests/kube-controller-manager.yaml"
    mode:       0644
    contents:
      inline: |
        apiVersion: v1
        kind: Pod
        metadata:
          name: kube-controller-manager
          namespace: kube-system
        spec:
          hostNetwork: true
          containers:
          - name: kube-controller-manager
            image: reg.local:5000/k8s/hyperkube:v1.7.3
            command:
            - /hyperkube
            - controller-manager
            - --master=http://127.0.0.1:8080
            - --leader-elect=true
            - --service-account-private-key-file=/etc/kubernetes/ssl/apiserver.key
            - --root-ca-file=/etc/kubernetes/ssl/ca.pem
            resources:
              requests:
                cpu: 200m
            livenessProbe:
              httpGet:
                host: 127.0.0.1
                path: /healthz
                port: 10252
              initialDelaySeconds: 15
              timeoutSeconds: 15
            volumeMounts:
            - mountPath: /etc/kubernetes/ssl
              name: ssl-certs-kubernetes
              readOnly: true
            - mountPath: /etc/ssl/certs
              name: ssl-certs-host
              readOnly: true
          volumes:
          - hostPath:
              path: /etc/kubernetes/ssl
            name: ssl-certs-kubernetes
          - hostPath:
              path: /usr/share/ca-certificates
            name: ssl-certs-host
  - filesystem: "root"
    path:       "/etc/kubernetes/manifests/kube-scheduler.yaml"
    mode:       0644
    contents:
      inline: |
        apiVersion: v1
        kind: Pod
        metadata:
          name: kube-scheduler
          namespace: kube-system
        spec:
          hostNetwork: true
          containers:
          - name: kube-scheduler
            image: reg.local:5000/k8s/hyperkube:v1.7.3
            command:
            - /hyperkube
            - scheduler
            - --master=http://127.0.0.1:8080
            - --leader-elect=true
            resources:
              requests:
                cpu: 100m
            livenessProbe:
              httpGet:
                host: 127.0.0.1
                path: /healthz
                port: 10251
              initialDelaySeconds: 15
              timeoutSeconds: 15
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/admin.csv"
    mode:       0644
    contents:
      inline: |
        58772015,admin,admin
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/ca.key"
    mode:       0644
    contents:
      inline: |
        {{ CA_KEY }}
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/ca.pem"
    mode:       0644
    contents:
      inline: |
        {{ CA_PEM }}
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/openssl-admin.cnf"
    mode:       0644
    contents:
      inline: |
        [req]
        req_extensions = v3_req
        distinguished_name = req_distinguished_name
        [req_distinguished_name]
        [ v3_req ]
        basicConstraints = CA:FALSE
        keyUsage = nonRepudiation, digitalSignature, keyEncipherment
        subjectAltName = @alt_names
        [alt_names]
        IP.1 = {{ MASTER_IP }}
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/openssl-apiserver.cnf"
    mode:       0644
    contents:
      inline: |
        [req]
        req_extensions = v3_req
        distinguished_name = req_distinguished_name
        [req_distinguished_name]
        [ v3_req ]
        basicConstraints = CA:FALSE
        keyUsage = nonRepudiation, digitalSignature, keyEncipherment
        subjectAltName = @alt_names
        [alt_names]
        DNS.1 = kubernetes
        DNS.2 = kubernetes.default
        DNS.3 = kubernetes.default.svc
        DNS.4 = kubernetes.default.svc.cluster.local
        IP.1 = 10.3.0.1
        IP.2 = {{ MASTER_IP }}
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/kubelet-ssl.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes/ssl    

        if [[ -e $KUBELET_SESSION/kubelet-ssl.session ]]; then
          exit 0 
        fi

        openssl genrsa -out apiserver.key 2048
        openssl req -new -key apiserver.key -out apiserver.csr -subj "/CN=apiserver/C=CN/ST=BeiJing/L=Beijing/O=k8s/OU=System" -config /etc/kubernetes/ssl/openssl-apiserver.cnf
        openssl x509 -req -in apiserver.csr -CA ca.pem -CAkey ca.key -CAcreateserial -out apiserver.pem -days 365 -extensions v3_req -extfile /etc/kubernetes/ssl/openssl-apiserver.cnf

        openssl genrsa -out admin.key 2048 
        openssl req -new -key admin.key -out admin.csr -subj "/CN=admin/C=CN/ST=BeiJing/L=Beijing/O=system:masters/OU=System"
        openssl x509 -req -in admin.csr -CA ca.pem -CAkey ca.key -CAcreateserial -out admin.pem -days 365

        touch $KUBELET_SESSION/kubelet-ssl.session
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/kubelet-kubectl.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 
        HTTP_SERVER="${HTTP_SERVER:-http://192.168.3.100:8000/k8s}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/kubelet-kubectl.session ]]; then
          exit 0
        fi

        mkdir -p /opt/bin
        rm -rf /opt/bin/kubectl-v1.7.0 
        rm -rf /opt/bin/kubectl

        curl $HTTP_SERVER/kubectl-v1.7.0.tgz > /opt/bin/kubectl-v1.7.0.tgz
        cd /opt/bin && tar -xzf /opt/bin/kubectl-v1.7.0.tgz
        rm -rf /opt/bin/kubectl-v1.7.0.tgz
        chmod 0744 /opt/bin/kubectl-v1.7.0
        ln -s /opt/bin/kubectl-v1.7.0 /opt/bin/kubectl

        MASTER_HOST={{ MASTER_IP }}
        CA_CERT=/etc/kubernetes/ssl/ca.pem
        ADMIN_KEY=/etc/kubernetes/ssl/admin.key
        ADMIN_CERT=/etc/kubernetes/ssl/admin.pem

        /opt/bin/kubectl config set-cluster kubernetes --server=https://$MASTER_HOST:6443 --certificate-authority=$CA_CERT --embed-certs=true
        /opt/bin/kubectl config set-credentials admin --certificate-authority=$CA_CERT --client-key=$ADMIN_KEY --client-certificate=$ADMIN_CERT --embed-certs=true
        /opt/bin/kubectl config set-context kubernetes --cluster=kubernetes --user=admin
        /opt/bin/kubectl config use-context kubernetes   

        touch $KUBELET_SESSION/kubelet-kubectl.session
  - filesystem: "root"
    path:       "/etc/kubernetes/addons/dns.yml"
    mode:       0644
    contents:
      inline: |
        ---
        kind: ConfigMap
        apiVersion: v1
        metadata:
          name: kube-dns
          namespace: kube-system
        data:
          stubDomains: |
            {"dex.ispacesys.cn":["{{ MASTER_IP }}"]}
          
        ---
        apiVersion: v1
        kind: Service
        metadata:
          name: kube-dns
          namespace: kube-system
          labels:
            k8s-app: kube-dns
            kubernetes.io/cluster-service: "true"
            kubernetes.io/name: "KubeDNS"
        spec:
          selector:
            k8s-app: kube-dns
          clusterIP: 10.3.0.10
          ports:
          - name: dns
            port: 53
            protocol: UDP
          - name: dns-tcp
            port: 53
            protocol: TCP
            
        ---
        apiVersion: v1
        kind: ServiceAccount
        metadata:
          name: kube-dns
          namespace: kube-system
          labels:
            kubernetes.io/cluster-service: "true"
            addonmanager.kubernetes.io/mode: Reconcile

        ---
        kind: ClusterRoleBinding
        apiVersion: rbac.authorization.k8s.io/v1alpha1
        metadata:
          name: k8s-kube-dns
        roleRef:
          kind: ClusterRole
          name: system:kube-dns
          apiGroup: rbac.authorization.k8s.io  
        subjects:
        - kind: ServiceAccount
          name: kube-dns
          namespace: kube-system    

        ---
        apiVersion: v1
        kind: ReplicationController
        metadata:
          name: kube-dns
          namespace: kube-system
          labels:
            k8s-app: kube-dns
            version: "1.14.4"
            kubernetes.io/cluster-service: "true"
            addonmanager.kubernetes.io/mode: Reconcile
        spec:
          replicas: 1
          selector:
            k8s-app: kube-dns
          template:
            metadata:
              labels:
                k8s-app: kube-dns
              annotations:
                scheduler.alpha.kubernetes.io/critical-pod: ''
                scheduler.alpha.kubernetes.io/tolerations: '[{"key":"CriticalAddonsOnly", "operator":"Exists"}]'
            spec:
              volumes:
              - name: kube-dns-config
                configMap:
                  name: kube-dns
                  optional: true
              containers:
              - name: kubedns
                image: reg.local:5000/k8s/k8s-dns-kube-dns-amd64:1.14.4
                resources:
                  limits:
                    memory: 170Mi
                  requests:
                    cpu: 100m
                    memory: 70Mi
                livenessProbe:
                  httpGet:
                    path: /healthcheck/kubedns
                    port: 10054
                    scheme: HTTP
                  initialDelaySeconds: 60
                  timeoutSeconds: 5
                  successThreshold: 1
                  failureThreshold: 5
                readinessProbe:
                  httpGet:
                    path: /readiness
                    port: 8081
                    scheme: HTTP
                  initialDelaySeconds: 3
                  timeoutSeconds: 5
                args:
                - --domain=cluster.local
                - --dns-port=10053
                - --config-dir=/kube-dns-config
                - --v=2
                env:
                - name: PROMETHEUS_PORT
                  value: "10055"
                ports:
                - containerPort: 10053
                  name: dns-local
                  protocol: UDP
                - containerPort: 10053
                  name: dns-tcp-local
                  protocol: TCP
                - containerPort: 10055
                  name: metrics
                  protocol: TCP
                volumeMounts:
                - name: kube-dns-config
                  mountPath: /kube-dns-config
              - name: dnsmasq
                image: reg.local:5000/k8s/k8s-dns-dnsmasq-nanny-amd64:1.14.4
                livenessProbe:
                  httpGet:
                    path: /healthcheck/dnsmasq
                    port: 10054
                    scheme: HTTP
                  initialDelaySeconds: 60
                  timeoutSeconds: 5
                  successThreshold: 1
                  failureThreshold: 5
                args:
                - -v=2
                - -logtostderr
                - -configDir=/etc/k8s/dns/dnsmasq-nanny
                - -restartDnsmasq=true
                - --
                - -k
                - --cache-size=1000
                - --log-facility=-
                - --server=/cluster.local/127.0.0.1#10053
                - --server=/in-addr.arpa/127.0.0.1#10053
                - --server=/ip6.arpa/127.0.0.1#10053
                ports:
                - containerPort: 53
                  name: dns
                  protocol: UDP
                - containerPort: 53
                  name: dns-tcp
                  protocol: TCP
                resources:
                  requests:
                    cpu: 150m
                    memory: 20Mi
                volumeMounts:
                - name: kube-dns-config
                  mountPath: /etc/k8s/dns/dnsmasq-nanny
              - name: sidecar
                image: reg.local:5000/k8s/k8s-dns-sidecar-amd64:1.14.4
                livenessProbe:
                  httpGet:
                    path: /metrics
                    port: 10054
                    scheme: HTTP
                  initialDelaySeconds: 60
                  timeoutSeconds: 5
                  successThreshold: 1
                  failureThreshold: 5
                args:
                - --v=2
                - --logtostderr
                - --probe=kubedns,127.0.0.1:10053,kubernetes.default.svc.cluster.local,5,A
                - --probe=dnsmasq,127.0.0.1:53,kubernetes.default.svc.cluster.local,5,A
                ports:
                - containerPort: 10054
                  name: metrics
                  protocol: TCP
                resources:
                  requests:
                    memory: 20Mi
                    cpu: 10m
              dnsPolicy: Default  
              serviceAccountName: kube-dns
  - filesystem: "root"
    path:       "/etc/kubernetes/addons/dashboard.yml"
    mode:       0644
    contents:
      inline: |
        ---
        apiVersion: v1
        kind: ServiceAccount
        metadata:
          name: dashboard
          namespace: kube-system

        ---
        kind: ClusterRoleBinding
        apiVersion: rbac.authorization.k8s.io/v1alpha1
        metadata:
          name: dashboard-extended
        roleRef:
          kind: ClusterRole
          name: cluster-admin
          apiGroup: rbac.authorization.k8s.io  
        subjects:
        - kind: ServiceAccount
          name: dashboard
          namespace: kube-system
            
        ---
        apiVersion: v1
        kind: Service
        metadata:
          name: kubernetes-dashboard
          namespace: kube-system
          labels:
            k8s-app: kubernetes-dashboard
            kubernetes.io/cluster-service: "true"
        spec:
          selector:
            k8s-app: kubernetes-dashboard
          ports:
          - port: 80
            targetPort: 9090

        ---
        apiVersion: v1
        kind: ReplicationController
        metadata:
          name: kubernetes-dashboard
          namespace: kube-system
          labels:
            k8s-app: kubernetes-dashboard
            version: "v1.6.1"
            kubernetes.io/cluster-service: "true"
        spec:
          replicas: 1
          selector:
            k8s-app: kubernetes-dashboard
          template:
            metadata:
              labels:
                k8s-app: kubernetes-dashboard
                version: "v1.6.1"
                kubernetes.io/cluster-service: "true"
              annotations:
                scheduler.alpha.kubernetes.io/critical-pod: ''
                scheduler.alpha.kubernetes.io/tolerations: '[{"key":"CriticalAddonsOnly", "operator":"Exists"}]'
            spec:
              serviceAccountName: dashboard
              nodeSelector:
                kubernetes.io/hostname: {{ MASTER_IP }}
              containers:
              - name: kubernetes-dashboard
                image: reg.local:5000/k8s/kubernetes-dashboard-amd64:v1.6.1
                resources:
                  limits:
                    cpu: 100m
                    memory: 50Mi
                  requests:
                    cpu: 100m
                    memory: 50Mi
                ports:
                - containerPort: 9090
                livenessProbe:
                  httpGet:
                    path: /
                    port: 9090
                  initialDelaySeconds: 30
                  timeoutSeconds: 30

  - filesystem: "root"
    path:       "/etc/kubernetes/addons/heapster.yml"
    mode:       0644
    contents:
      inline: |
        ---
        apiVersion: v1
        kind: ServiceAccount
        metadata:
          name: heapster
          namespace: kube-system

        ---
        apiVersion: rbac.authorization.k8s.io/v1beta1
        kind: ClusterRoleBinding
        metadata:
          name: heapster
        roleRef:
          apiGroup: rbac.authorization.k8s.io
          kind: ClusterRole
          name: system:heapster
        subjects:
        - kind: ServiceAccount
          name: heapster
          namespace: kube-system

        ---
        kind: Service
        apiVersion: v1
        metadata:
          name: heapster
          namespace: kube-system
          labels:
            kubernetes.io/cluster-service: "true"
            addonmanager.kubernetes.io/mode: Reconcile
            kubernetes.io/name: "Heapster"
        spec: 
          ports: 
            - port: 80
              targetPort: 8082
          selector: 
            k8s-app: heapster

        --- 
        apiVersion: extensions/v1beta1
        kind: Deployment
        metadata:
          name: heapster
          namespace: kube-system
          labels:
            k8s-app: heapster
            kubernetes.io/cluster-service: "true"
            addonmanager.kubernetes.io/mode: Reconcile
            version: v1.3.0
        spec:  
          replicas: 1
          selector:
            matchLabels:
              k8s-app: heapster
              version: v1.3.0
          template:
            metadata:
              labels:
                k8s-app: heapster
                version: v1.3.0
              annotations:
                scheduler.alpha.kubernetes.io/critical-pod: ''
            spec:
              serviceAccountName: heapster
              containers:
                - image: reg.local:5000/k8s/heapster-amd64:v1.3.0
                  name: heapster
                  livenessProbe:
                    httpGet:
                      path: /healthz
                      port: 8082
                      scheme: HTTP
                    initialDelaySeconds: 180
                    timeoutSeconds: 5
                  command:
                    - /heapster
                    - --source=kubernetes.summary_api:''
                    - --sink=influxdb:http://monitoring-influxdb:8086
                - image: reg.local:5000/k8s/heapster-amd64:v1.3.0
                  name: eventer
                  command:
                    - /eventer
                    - --source=kubernetes:''
                    - --sink=influxdb:http://monitoring-influxdb:8086
                - image: reg.local:5000/k8s/addon-resizer:1.7
                  name: heapster-nanny
                  resources:
                    limits:
                      cpu: 50m
                      memory: 93160Ki
                    requests:
                      cpu: 50m
                      memory: 93160Ki
                  env:
                    - name: MY_POD_NAME
                      valueFrom:
                        fieldRef:
                          fieldPath: metadata.name
                    - name: MY_POD_NAMESPACE
                      valueFrom:
                        fieldRef:
                          fieldPath: metadata.namespace
                  command:
                    - /pod_nanny
                    - --cpu=80m
                    - --extra-cpu=0.5m
                    - --memory=140Mi
                    - --extra-memory=4Mi
                    - --threshold=5
                    - --deployment=heapster-v1.3.0
                    - --container=heapster
                    - --poll-period=300000
                    - --estimator=exponential
                - image: reg.local:5000/k8s/addon-resizer:1.7
                  name: eventer-nanny
                  resources:
                    limits:
                      cpu: 50m
                      memory: 93160Ki
                    requests:
                      cpu: 50m
                      memory: 93160Ki
                  env:
                    - name: MY_POD_NAME
                      valueFrom:
                        fieldRef:
                          fieldPath: metadata.name
                    - name: MY_POD_NAMESPACE
                      valueFrom:
                        fieldRef:
                          fieldPath: metadata.namespace
                  command:
                    - /pod_nanny
                    - --cpu=100m
                    - --extra-cpu=0m
                    - --memory=190Mi
                    - --extra-memory=500Ki
                    - --threshold=5
                    - --deployment=heapster-v1.3.0
                    - --container=eventer
                    - --poll-period=300000
                    - --estimator=exponential
              tolerations:
                - key: "CriticalAddonsOnly"
                  operator: "Exists"
  - filesystem: "root"
    path:       "/etc/kubernetes/addons/influxdb-grafana.yml"
    mode:       0644
    contents:
      inline: |
        ---
        apiVersion: v1
        kind: Service
        metadata:
          name: monitoring-grafana
          namespace: kube-system
          labels: 
            kubernetes.io/cluster-service: "true"
            addonmanager.kubernetes.io/mode: Reconcile
            kubernetes.io/name: "Grafana"
        spec:
          # On production clusters, consider setting up auth for grafana, and
          # exposing Grafana either using a LoadBalancer or a public IP.
          # type: LoadBalancer
          ports: 
            - port: 80
              targetPort: 3000
          selector: 
            k8s-app: influxGrafana

        ---
        apiVersion: v1
        kind: Service
        metadata:
          name: monitoring-influxdb
          namespace: kube-system
          labels: 
            kubernetes.io/cluster-service: "true"
            addonmanager.kubernetes.io/mode: Reconcile
            kubernetes.io/name: "InfluxDB"
        spec: 
          ports: 
            - name: http
              port: 8083
              targetPort: 8083
            - name: api
              port: 8086
              targetPort: 8086
          selector: 
            k8s-app: influxGrafana    

        ---
        apiVersion: v1
        kind: ReplicationController
        metadata:
          name: monitoring-influxdb-grafana
          namespace: kube-system
          labels: 
            k8s-app: influxGrafana
            version: v4.0.2
            kubernetes.io/cluster-service: "true"
            addonmanager.kubernetes.io/mode: Reconcile
        spec: 
          replicas: 1
          selector: 
            k8s-app: influxGrafana
            version: v4.0.2
          template: 
            metadata: 
              labels: 
                k8s-app: influxGrafana
                version: v4.0.2
                kubernetes.io/cluster-service: "true"
            spec: 
              containers: 
                - image: reg.local:5000/k8s/heapster-influxdb-amd64:v1.1.1
                  name: influxdb
                  resources:
                    # keep request = limit to keep this container in guaranteed class
                    limits:
                      cpu: 100m
                      memory: 500Mi
                    requests:
                      cpu: 100m
                      memory: 500Mi
                  ports: 
                    - containerPort: 8083
                    - containerPort: 8086
                  volumeMounts:
                  - name: influxdb-persistent-storage
                    mountPath: /data
                - image: reg.local:5000/k8s/heapster-grafana-amd64:v4.0.2
                  name: grafana
                  env:
                  resources:
                    # keep request = limit to keep this container in guaranteed class
                    limits:
                      cpu: 100m
                      memory: 100Mi
                    requests:
                      cpu: 100m
                      memory: 100Mi
                  env:
                    # This variable is required to setup templates in Grafana.
                    - name: INFLUXDB_SERVICE_URL
                      value: http://monitoring-influxdb:8086
                      # The following env variables are required to make Grafana accessible via
                      # the kubernetes api-server proxy. On production clusters, we recommend
                      # removing these env variables, setup auth for grafana, and expose the grafana
                      # service using a LoadBalancer or a public IP.
                    - name: GF_AUTH_BASIC_ENABLED
                      value: "false"
                    - name: GF_AUTH_ANONYMOUS_ENABLED
                      value: "true"
                    - name: GF_AUTH_ANONYMOUS_ORG_ROLE
                      value: Admin
                    - name: GF_SERVER_ROOT_URL
                      value: /api/v1/proxy/namespaces/kube-system/services/monitoring-grafana/
                  volumeMounts:
                  - name: grafana-persistent-storage
                    mountPath: /var
              volumes:
              - name: influxdb-persistent-storage
                emptyDir: {}
              - name: grafana-persistent-storage
                emptyDir: {}
  - filesystem: "root"
    path:       "/etc/kubernetes/addons/rbac-admin.yml"
    mode:       0644
    contents:
      inline: |
        apiVersion: rbac.authorization.k8s.io/v1beta1
        kind: ClusterRoleBinding
        metadata:
          name: k8s-admin
          labels:
            kubernetes.io/cluster-service: "true"
            addonmanager.kubernetes.io/mode: Reconcile
        roleRef:
          apiGroup: rbac.authorization.k8s.io
          kind: ClusterRole
          name: cluster-admin
        subjects:
        - apiGroup: rbac.authorization.k8s.io
          kind: User
          name: admin                                                         
  - filesystem: "root"
    path:       "/etc/kubernetes/addons/rbac-mengkzhaoyun.yml"
    mode:       0644
    contents:
      inline: |
        kind: RoleBinding
        apiVersion: rbac.authorization.k8s.io/v1beta1
        metadata:
          name: k8s-mengkzhaoyun
          namespace: kube-system
        roleRef:
          kind: ClusterRole
          name: admin
          apiGroup: rbac.authorization.k8s.io
        subjects:
        - kind: User
          name: mengkzhaoyun@gmail.com
          apiGroup: rbac.authorization.k8s.io
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/kubelet-addon.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/kubelet-addon.session ]]; then
          exit 0 
        fi

        /opt/bin/kubectl get pods --namespace=kube-system

        /opt/bin/kubectl create -f /etc/kubernetes/addons/rbac-admin.yml
        /opt/bin/kubectl create -f /etc/kubernetes/addons/rbac-mengkzhaoyun.yml

        /opt/bin/kubectl create -f /etc/kubernetes/addons/dns.yml
        /opt/bin/kubectl create -f /etc/kubernetes/addons/dashboard.yml
        /opt/bin/kubectl create -f /etc/kubernetes/addons/heapster.yml
        /opt/bin/kubectl create -f /etc/kubernetes/addons/influxdb-grafana.yml

        touch $KUBELET_SESSION/kubelet-addon.session              
              
networkd:
  units:
  - name: 00-static.network
    contents: |
      [Match]
      Name={{ NETWORK_MATCH }}

      [Network]
      DNS={{ NETWORK_DNS }}
      Address={{ MASTER_IP }}/24
      Gateway={{ NETWORK_GATEWAY }}
      DHCP=no
systemd:
  units:
  - name: "settimezone.service"
    enable: true
    contents: |
      [Unit]
      Description=time zone Asia/Shanghai
      [Service]
      ExecStart=/usr/bin/timedatectl set-timezone Asia/Shanghai
      RemainAfterExit=yes
      Type=oneshot  
      [Install]
      WantedBy=multi-user.target   
  - name: "download-registry.service"
    enable: true    
    contents: |
      [Unit]
      Description=download registry aci and data (HTTP)
      Documentation=https://github.com/coreos/registry

      [Service]
      Type=oneshot  
      Environment=HTTP_SERVER={{ HTTP_SERVER_LOCAL }}
      ExecStart=/etc/kubernetes/scripts/registry.sh
      [Install]
      WantedBy=multi-user.target   
  - name: "registry.service"
    enable: true    
    contents: |
      [Unit]
      Description=registry (Docker Hub)
      Documentation=https://github.com/coreos/registry
      After=download-registry.service

      [Service]
      Environment=PATH=/opt/bin/:/usr/bin/:/usr/sbin:$PATH

      ExecStartPre=/usr/bin/mkdir -p /home/docker/registry/auth
      ExecStartPre=/usr/bin/mkdir -p /home/docker/registry/data
      ExecStartPre=/usr/bin/mkdir --parents /var/lib/coreos
      ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/lib/coreos/registry-pod.uuid       

      ExecStart=/usr/bin/rkt run 
        --insecure-options=image 
        --uuid-file-save=/var/lib/coreos/registry-pod.uuid 
        --port=5000-tcp:5000 
        --volume auth,kind=host,source=/home/docker/registry/auth 
        --volume data,kind=host,source=/home/docker/registry/data 
        --mount volume=auth,target=/auth 
        --mount volume=data,target=/var/lib/registry 
        /etc/kubernetes/downloads/registry-2.6.1.aci 
        --name=registry 

      ExecStop=-/usr/bin/rkt stop --uuid-file=/var/lib/coreos/registry-pod.uuid

      Restart=always
      RestartSec=10
      TimeoutSec=infinity
      [Install]
      WantedBy=multi-user.target        
  - name: "etcd2.service"
    enable: false    
  - name: "etcd-member.service"
    enable: false        
  - name: "download-etcd3.service"
    enable: true    
    contents: |
      [Unit]
      Description=download etcd3 aci (HTTP)
      Documentation=https://github.com/coreos/registry

      [Service]
      Type=oneshot  
      Environment=HTTP_SERVER={{ HTTP_SERVER_LOCAL }}
      ExecStart=/etc/kubernetes/scripts/etcd3.sh
      [Install]
      WantedBy=multi-user.target           
  - name: "etcd3.service"
    enable: true    
    contents: |
      [Unit]
      Description=etcd (System Application Container)
      Documentation=https://github.com/coreos/etcd
      Wants=network.target
      Conflicts=etcd.service
      Conflicts=etcd2.service
      Conflicts=etcd-member.service
      After=download-etcd3.service

      [Service]
      Type=notify
      RestartSec=10s
      LimitNOFILE=40000

      ExecStartPre=/usr/bin/mkdir --parents /var/lib/coreos
      ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/lib/coreos/etcd3-pod.uuid
      
      Environment="ETCD_IMAGE=/etc/kubernetes/downloads/etcd-v3.2.0.aci"
      Environment="ETCD_USER=etcd"        
      Environment="ETCD_DATA_DIR=/var/lib/etcd3"
      Environment="RKT_GLOBAL_ARGS=--insecure-options=image"        
      Environment="RKT_RUN_ARGS=--uuid-file-save=/var/lib/coreos/etcd3-pod.uuid"
      Environment="ETCD_IMAGE_ARGS=--name=etcd"

      ExecStart=/usr/lib/coreos/etcd-wrapper 
        --name={{ MASTER_HOSTNAME }} 
        --initial-cluster-token=spacesystech.com 
        --initial-cluster={{ ETCD_CLUSTER }} 
        --initial-cluster-state=new 
        --advertise-client-urls=http://{{ MASTER_IP }}:2379 
        --initial-advertise-peer-urls=http://{{ MASTER_IP }}:2380 
        --listen-client-urls=http://{{ MASTER_IP }}:2379,http://127.0.0.1:2379 
        --listen-peer-urls=http://{{ MASTER_IP }}:2380

      ExecStop=-/usr/bin/rkt stop --uuid-file=/var/lib/coreos/etcd3-pod.uuid    

      [Install]
      WantedBy=multi-user.target
  - name: "download-flannel.service"
    enable: true    
    contents: |
      [Unit]
      Description=download flannel aci (HTTP)
      Documentation=https://github.com/coreos/registry

      [Service]
      Type=oneshot  
      Environment=HTTP_SERVER={{ HTTP_SERVER_LOCAL }}
      ExecStart=/etc/kubernetes/scripts/flannel.sh
      [Install]
      WantedBy=multi-user.target           
  - name: "flannel-docker-opts.service"
    enable: true    
    dropins:
      - name: 10-image.conf
        contents: |
          [Unit]
          After=download-flannel.service
          [Service]                                     
          Environment="FLANNEL_IMAGE=/etc/kubernetes/downloads/flannel-v0.7.1.aci"    
          Environment="RKT_GLOBAL_ARGS=--insecure-options=image"
  - name: "flanneld.service"
    enable: true    
    dropins:
      - name: 10-image.conf
        contents: |
          [Unit]
          After=etcd3.service download-flannel.service
          [Service]      
          ExecStartPre=/usr/bin/etcdctl set /spacesystech.com/network2/config '{ "Network": "10.2.0.0/16","Backend": {"Type":"vxlan"} }' 

          Environment="FLANNELD_IFACE={{ MASTER_IP }}"
          Environment="FLANNELD_ETCD_ENDPOINTS=http://{{ MASTER_IP }}:2379"
          Environment="FLANNELD_ETCD_PREFIX=/spacesystech.com/network2"
          Environment="FLANNEL_IMAGE=/etc/kubernetes/downloads/flannel-v0.7.1.aci"
          Environment="RKT_GLOBAL_ARGS=--insecure-options=image"
          Environment="FLANNEL_IMAGE_ARGS=--name=flannel"
  - name: "docker.service"
    enable: true    
    dropins:
      - name: 40-flannel.conf
        contents: |
          [Unit]
          Requires=flanneld.service
          After=flanneld.service
          [Service]
          Environment=DOCKER_OPT_BIP=""
          Environment=DOCKER_OPT_IPMASQ=""
      - name: 50-insecure-registry.conf
        contents: |
          [Service]
          Environment=DOCKER_OPTS='--insecure-registry="reg.local:5000" --insecure-registry="registry.ispacesys.cn:5000"'

  - name: "kubelet-ssl.service"
    enable: true    
    contents: |
      [Unit]
      Description=kubelet-ssl
      Documentation=https://kubernetes.io
      [Service]
      Type=oneshot
      Environment=KUBELET_SESSION=/etc/kubernetes/session
      ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/session
      ExecStart=/etc/kubernetes/scripts/kubelet-ssl.sh
      [Install]
      WantedBy=multi-user.target
  - name: "kubelet-gac.service"
    enable: true    
    contents: |
      [Unit]
      Description=kubelet-gac
      Documentation=https://kubernetes.io
      Requires=docker.service
      After=docker.service
      [Service]
      Type=oneshot
      Environment=KUBELET_SESSION=/etc/kubernetes/session
      ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/session
      ExecStart=/etc/kubernetes/scripts/kubelet-gac.sh
      [Install]
      WantedBy=multi-user.target      
  - name: "download-kubelet.service"
    enable: true    
    contents: |
      [Unit]
      Description=download kubelet aci (HTTP)
      Documentation=https://github.com/coreos/registry

      [Service]
      Type=oneshot  
      Environment=HTTP_SERVER={{ HTTP_SERVER_LOCAL }}
      ExecStart=/etc/kubernetes/scripts/kubelet.sh
      [Install]
      WantedBy=multi-user.target            
  - name: "kubelet.service"
    enable: true    
    contents: |
      [Unit]
      Description=kubelet
      Documentation=https://kubernetes.io
      After=kubelet-ssl.service kubelet-gac.service docker.service registry.service download-kubelet.service
      [Service]
      ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/manifests
      ExecStartPre=/usr/bin/mkdir -p /var/log/containers
      ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/run/kubelet-pod.uuid

      Environment=PATH=/opt/bin/:/usr/bin/:/usr/sbin:$PATH
      Environment=KUBELET_IMAGE=/etc/kubernetes/downloads/hyperkube-v1.7.3.aci
      Environment="RKT_GLOBAL_ARGS=--insecure-options=image" 
      Environment="RKT_OPTS=--volume modprobe,kind=host,source=/usr/sbin/modprobe 
        --mount volume=modprobe,target=/usr/sbin/modprobe 
        --volume lib-modules,kind=host,source=/lib/modules 
        --mount volume=lib-modules,target=/lib/modules 
        --uuid-file-save=/var/run/kubelet-pod.uuid 
        --volume var-log,kind=host,source=/var/log 
        --mount volume=var-log,target=/var/log 
        --volume dns,kind=host,source=/etc/resolv.conf 
        --mount volume=dns,target=/etc/resolv.conf"

      ExecStart=/usr/lib/coreos/kubelet-wrapper 
        --api-servers=http://127.0.0.1:8080 
        --network-plugin-dir=/etc/kubernetes/cni/net.d 
        --network-plugin= 
        --register-node=true 
        --allow-privileged=true 
        --pod-manifest-path=/etc/kubernetes/manifests 
        --hostname-override={{ MASTER_IP }} 
        --cluster-dns=10.3.0.10 
        --cluster-domain=cluster.local

      ExecStop=-/usr/bin/rkt stop --uuid-file=/var/run/kubelet-pod.uuid

      Restart=always
      RestartSec=10
      [Install]
      WantedBy=multi-user.target
  - name: "kubelet-kubectl.service"
    enable: true    
    contents: |
      [Unit]
      Description=kubelet-kubectl
      Documentation=https://kubernetes.io
      After=kubelet-ssl.service kubelet.service
      [Service]
      Type=oneshot
      RestartSec=20
      Environment=KUBELET_SESSION=/etc/kubernetes/session
      Environment=HTTP_SERVER={{ HTTP_SERVER_LOCAL }}
      ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/session
      ExecStart=/etc/kubernetes/scripts/kubelet-kubectl.sh
      [Install]
      WantedBy=multi-user.target            
  - name: "kubelet-addon.service"
    enable: true    
    contents: |
      [Unit]
      Description=kubelet-addon
      Documentation=https://kubernetes.io
      After=kubelet-kubectl
      [Service]
      Restart=on-failure
      RestartSec=10
      Environment=KUBELET_SESSION=/etc/kubernetes/session
      ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/session
      ExecStart=/etc/kubernetes/scripts/kubelet-addon.sh
      [Install]
      WantedBy=multi-user.target
      WantedBy=multi-user.target

woker.yml模版

参数

示例

{{ WORKER_HOSTNAME }}

systech01

{{ WORKER_IP }}

192.168.3.101

{{ MASTER_IP }}

192.168.3.102

{{ ETCD_CLUSTER }}

systech01=http://192.168.3.101:2380,systech02=http://192.168.3.102:2380,systech03=http://192.168.3.103:2380

{{ CA_KEY }}

-----BEGIN RSA PRIVATE KEY-----

MIIEpAIBAAKCAQEA4dafEVttwUB7eXofPzmpdmR533+Imn0KuMg4XhtB0sdyjKFf

…

PaDJxByNh84ysmAfuadDgcXNrF/8fDupIA0wf2qGLDlttahr2DA7Ug==

-----END RSA PRIVATE KEY-----

{{ CA_PEM }}

-----BEGIN CERTIFICATE-----

MIIC+TCCAeECCQDjC0MVaVasEjANBgkqhkiG9w0BAQsFADASMRAwDgYDVQQDDAdr

…

RousxpNr1QvU6EwLupKYZc006snlVh4//r9QNjh5QRxRhl71XafR1S3pamBo

-----END CERTIFICATE-----

{{ NETWORK_MATCH }}

eth0

{{ NETWORK_DNS }}

192.168.3.1

{{ NETWORK_GATEWAY }}

192.168.3.1

{{ HTTP_SERVER_LOCAL }}

http://192.168.3.235/k8s

　　

passwd:
  users:           
    - name: "root"
      password_hash: "$1$maTXmv6V$4UuGlRDpBZtipAhlPZ2/J0"            
update:
  group:  "stable"
  server: "https://public.update.core-os.net/v1/update/"
locksmith:
  reboot_strategy: "etcd-lock"
  window_start:    "Sun 1:00"
  window_length:   "2h"              
storage:
  files:
  - filesystem: "root"
    path:       "/etc/hostname"
    mode:       0644
    contents:
      inline: {{ WORKER_HOSTNAME }}
  - filesystem: "root"
    path:       "/etc/hosts"
    mode:       0644
    contents:
      inline: |
        127.0.0.1	localhost
        127.0.0.1 {{ WORKER_HOSTNAME }}
        {{ MASTER_IP }} reg.local
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/kubelet-gac.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/kubelet-gac.session ]]; then
          exit 0
        fi

        docker pull reg.local:5000/k8s/pause-amd64:3.0
        docker tag reg.local:5000/k8s/pause-amd64:3.0 gcr.io/google_containers/pause-amd64:3.0
        docker rmi reg.local:5000/k8s/pause-amd64:3.0           

        touch $KUBELET_SESSION/kubelet-gac.session   
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/etcd3.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 
        HTTP_SERVER="${HTTP_SERVER:-http://192.168.3.100:8000/k8s}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/etcd3.session ]]; then
          exit 0
        fi

        mkdir -p /etc/kubernetes/downloads
        curl $HTTP_SERVER/etcd-v3.2.0.tgz > /etc/kubernetes/downloads/etcd-v3.2.0.tgz
        cd /etc/kubernetes/downloads && tar -xzf /etc/kubernetes/downloads/etcd-v3.2.0.tgz

        touch $KUBELET_SESSION/etcd3.session        
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/flannel.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 
        HTTP_SERVER="${HTTP_SERVER:-http://192.168.3.100:8000/k8s}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/flannel.session ]]; then
          exit 0
        fi

        mkdir -p /etc/kubernetes/downloads
        curl $HTTP_SERVER/flannel-v0.7.1.tgz > /etc/kubernetes/downloads/flannel-v0.7.1.tgz
        cd /etc/kubernetes/downloads && tar -xzf /etc/kubernetes/downloads/flannel-v0.7.1.tgz

        touch $KUBELET_SESSION/flannel.session      
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/kubelet.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 
        HTTP_SERVER="${HTTP_SERVER:-http://192.168.3.100:8000/k8s}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes   

        if [[ -e $KUBELET_SESSION/kubelet.session ]]; then
          exit 0
        fi

        mkdir -p /etc/kubernetes/downloads
        curl $HTTP_SERVER/hyperkube-v1.7.3.tgz > /etc/kubernetes/downloads/hyperkube-v1.7.3.tgz
        cd /etc/kubernetes/downloads && tar -xzf /etc/kubernetes/downloads/hyperkube-v1.7.3.tgz

        touch $KUBELET_SESSION/kubelet.session
  - filesystem: "root"
    path:       "/etc/kubernetes/manifests/kube-proxy.yaml"
    mode:       0644
    contents:
      inline: |
        ---
        apiVersion: v1
        kind: Pod
        metadata:
          name: kube-proxy
          namespace: kube-system
        spec:
          hostNetwork: true
          containers:
          - name: kube-proxy
            image: reg.local:5000/k8s/hyperkube:v1.7.3
            command:
            - /hyperkube
            - proxy
            - --master=https://{{ MASTER_IP }}:6443
            - --kubeconfig=/etc/kubernetes/kubeproxy-kubeconfig.yaml
            - --proxy-mode=iptables
            securityContext:
              privileged: true
            volumeMounts:
            - mountPath: /etc/ssl/certs
              name: "ssl-certs"
            - mountPath: /etc/kubernetes/kubeproxy-kubeconfig.yaml
              name: "kubeconfig"
              readOnly: true
            - mountPath: /etc/kubernetes/ssl
              name: "etc-kube-ssl"
              readOnly: true
            - mountPath: /var/run/dbus
              name: dbus
              readOnly: false
          volumes:
          - name: "ssl-certs"
            hostPath:
              path: "/usr/share/ca-certificates"
          - name: "kubeconfig"
            hostPath:
              path: "/etc/kubernetes/kubeproxy-kubeconfig.yaml"
          - name: "etc-kube-ssl"
            hostPath:
              path: "/etc/kubernetes/ssl"
          - hostPath:
              path: /var/run/dbus
            name: dbus
  - filesystem: "root"
    path:       "/etc/kubernetes/kubeproxy-kubeconfig.yaml"
    mode:       0644
    contents:
      inline: |
        apiVersion: v1
        kind: Config
        clusters:
        - name: local
          cluster:
            certificate-authority: /etc/kubernetes/ssl/ca.pem
        users:
        - name: kubelet
          user:
            client-certificate: /etc/kubernetes/ssl/kubelet.pem
            client-key: /etc/kubernetes/ssl/kubelet.key
        contexts:
        - context:
            cluster: local
            user: kubelet
          name: kubelet-context
        current-context: kubelet-context
  - filesystem: "root"
    path:       "/etc/kubernetes/kubelet-kubeconfig.yaml"
    mode:       0644
    contents:
      inline: |
        ---
        apiVersion: v1
        kind: Config
        clusters:
        - name: local
          cluster:
            certificate-authority: /etc/kubernetes/ssl/ca.pem
        users:
        - name: kubelet
          user:
            client-certificate: /etc/kubernetes/ssl/kubeproxy.pem
            client-key: /etc/kubernetes/ssl/kubeproxy.key
        contexts:
        - context:
            cluster: local
            user: kubelet
          name: kubelet-context
        current-context: kubelet-context                     
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/ca.key"
    mode:       0644
    contents:
      inline: |
        {{ CA_KEY }}
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/ca.pem"
    mode:       0644
    contents:
      inline: |
        {{ CA_PEM }}
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/openssl-kubelet.cnf"
    mode:       0644
    contents:
      inline: |
        [req]
        req_extensions = v3_req
        distinguished_name = req_distinguished_name
        [req_distinguished_name]
        [ v3_req ]
        basicConstraints = CA:FALSE
        keyUsage = nonRepudiation, digitalSignature, keyEncipherment
        subjectAltName = @alt_names
        [alt_names]
        IP.1 = {{ WORKER_IP }}
  - filesystem: "root"
    path:       "/etc/kubernetes/ssl/openssl-kubeproxy.cnf"
    mode:       0644
    contents:
      inline: |
        [req]
        req_extensions = v3_req
        distinguished_name = req_distinguished_name
        [req_distinguished_name]
        [ v3_req ]
        basicConstraints = CA:FALSE
        keyUsage = nonRepudiation, digitalSignature, keyEncipherment
        subjectAltName = @alt_names
        [alt_names]
        IP.1 = {{ WORKER_IP }}
  - filesystem: "root"
    path:       "/etc/kubernetes/scripts/ssl.sh"
    mode:       0755
    contents:
      inline: |
        #!/bin/bash 
        
        set -e 

        KUBELET_SESSION="${KUBELET_SESSION:-/etc/kubernetes/session}" 

        mkdir -p $KUBELET_SESSION

        cd /etc/kubernetes/ssl    

        if [[ -e $KUBELET_SESSION/kubelet-ssl.session ]]; then
          exit 0 
        fi

        openssl genrsa -out kubeproxy.key 2048
        openssl req -new -key kubeproxy.key -out kubeproxy.csr -subj "/CN=admin/C=CN/ST=BeiJing/L=Beijing/O=system:masters/OU=System" -config openssl-kubeproxy.cnf
        openssl x509 -req -in kubeproxy.csr -CA ca.pem -CAkey ca.key -CAcreateserial -out kubeproxy.pem -days 365 -extensions v3_req -extfile openssl-kubeproxy.cnf

        openssl genrsa -out kubelet.key 2048
        openssl req -new -key kubelet.key -out kubelet.csr -subj "/CN=admin/C=CN/ST=BeiJing/L=Beijing/O=system:masters/OU=System" -config openssl-kubelet.cnf 
        openssl x509 -req -in kubelet.csr -CA ca.pem -CAkey ca.key -CAcreateserial -out kubelet.pem -days 365 -extensions v3_req -extfile openssl-kubelet.cnf  

        touch $KUBELET_SESSION/kubelet-ssl.session
networkd:
  units:
  - name: 00-static.network
    contents: |
      [Match]
      Name={{ NETWORK_MATCH }}

      [Network]
      DNS={{ NETWORK_DNS }}
      Address={{ WORKER_IP }}/24
      Gateway={{ NETWORK_GATEWAY }}
      DHCP=no      
systemd:
  units:
  - name: "settimezone.service"
    enable: true
    contents: |
      [Unit]
      Description=Set the time zone Asia/Shanghai

      [Service]
      ExecStart=/usr/bin/timedatectl set-timezone Asia/Shanghai
      RemainAfterExit=yes
      Type=oneshot  

      [Install]
      WantedBy=multi-user.target   
  - name: "etcd2.service"
    enable: false    
  - name: "etcd-member.service"
    enable: false        
  - name: "download-etcd3.service"
    enable: true    
    contents: |
      [Unit]
      Description=download etcd3 aci (HTTP)
      Documentation=https://github.com/coreos/registry

      [Service]
      Type=oneshot  
      Environment=HTTP_SERVER={{ HTTP_SERVER_LOCAL }}
      ExecStart=/etc/kubernetes/scripts/etcd3.sh
      [Install]
      WantedBy=multi-user.target           
  - name: "etcd3.service"
    enable: true    
    contents: |
      [Unit]
      Description=etcd (System Application Container)
      Documentation=https://github.com/coreos/etcd
      Wants=network.target
      Conflicts=etcd.service
      Conflicts=etcd2.service
      Conflicts=etcd-member.service
      Requires=download-etcd3.service
      After=download-etcd3.service

      [Service]
      Type=notify
      RestartSec=10s
      LimitNOFILE=40000

      ExecStartPre=/usr/bin/mkdir --parents /var/lib/coreos
      ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/lib/coreos/etcd3-pod.uuid
      
      Environment="ETCD_IMAGE=/etc/kubernetes/downloads/etcd-v3.2.0.aci"
      Environment="ETCD_USER=etcd"        
      Environment="ETCD_DATA_DIR=/var/lib/etcd3"
      Environment="RKT_GLOBAL_ARGS=--insecure-options=image"        
      Environment="RKT_RUN_ARGS=--uuid-file-save=/var/lib/coreos/etcd3-pod.uuid"
      Environment="ETCD_IMAGE_ARGS=--name=etcd"

      ExecStart=/usr/lib/coreos/etcd-wrapper 
        --name={{ WORKER_HOSTNAME }} 
        --initial-cluster-token=spacesystech.com 
        --initial-cluster={{ ETCD_CLUSTER }} 
        --initial-cluster-state=new 
        --advertise-client-urls=http://{{ WORKER_IP }}:2379 
        --initial-advertise-peer-urls=http://{{ WORKER_IP }}:2380 
        --listen-client-urls=http://{{ WORKER_IP }}:2379,http://127.0.0.1:2379 
        --listen-peer-urls=http://{{ WORKER_IP }}:2380

      ExecStop=-/usr/bin/rkt stop --uuid-file=/var/lib/coreos/etcd3-pod.uuid    

      [Install]
      WantedBy=multi-user.target
  - name: "download-flannel.service"
    enable: true    
    contents: |
      [Unit]
      Description=download flannel aci (HTTP)
      Documentation=https://github.com/coreos/registry

      [Service]
      Type=oneshot  
      Environment=HTTP_SERVER={{ HTTP_SERVER_LOCAL }}
      ExecStart=/etc/kubernetes/scripts/flannel.sh
      [Install]
      WantedBy=multi-user.target           
  - name: "flannel-docker-opts.service"
    enable: true    
    dropins:
      - name: 10-image.conf
        contents: |
          [Unit]
          Requires=download-flannel.service
          After=download-flannel.service
          [Service]                                     
          Environment="FLANNEL_IMAGE=/etc/kubernetes/downloads/flannel-v0.7.1.aci"    
          Environment="RKT_GLOBAL_ARGS=--insecure-options=image"
  - name: "flanneld.service"
    enable: true    
    dropins:
      - name: 10-image.conf
        contents: |
          [Unit]
          Requires=etcd3.service download-flannel.service
          After=etcd3.service download-flannel.service
          [Service]      
          ExecStartPre=/usr/bin/etcdctl set /spacesystech.com/network2/config '{ "Network": "10.2.0.0/16","Backend": {"Type":"vxlan"} }' 

          Environment="FLANNELD_IFACE={{ WORKER_IP }}"
          Environment="FLANNELD_ETCD_ENDPOINTS=http://{{ WORKER_IP }}:2379"
          Environment="FLANNELD_ETCD_PREFIX=/spacesystech.com/network2"
          Environment="FLANNEL_IMAGE=/etc/kubernetes/downloads/flannel-v0.7.1.aci"
          Environment="RKT_GLOBAL_ARGS=--insecure-options=image"
          Environment="FLANNEL_IMAGE_ARGS=--name=flannel"
  - name: "docker.service"
    enable: true    
    dropins:
      - name: 40-flannel.conf
        contents: |
          [Unit]
          Requires=flanneld.service
          After=flanneld.service
          [Service]
          Environment=DOCKER_OPT_BIP=""
          Environment=DOCKER_OPT_IPMASQ=""
      - name: 50-insecure-registry.conf
        contents: |
          [Service]
          Environment=DOCKER_OPTS='--insecure-registry="reg.local:5000"'
  - name: "kubelet-ssl.service"
    enable: true    
    contents: |
      [Unit]
      Description=kubelet-ssl
      Documentation=https://kubernetes.io
      [Service]
      Type=oneshot
      Environment=KUBELET_SESSION=/etc/kubernetes/session
      ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/session
      ExecStart=/etc/kubernetes/scripts/ssl.sh
      [Install]
      WantedBy=multi-user.target
  - name: "kubelet-gac.service"
    enable: true    
    contents: |
      [Unit]
      Description=kubelet-gac
      Documentation=https://kubernetes.io
      Requires=docker.service
      After=docker.service
      [Service]
      Type=oneshot
      Environment=KUBELET_SESSION=/etc/kubernetes/session
      ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/session
      ExecStart=/etc/kubernetes/scripts/kubelet-gac.sh
      [Install]
      WantedBy=multi-user.target         
  - name: "download-kubelet.service"
    enable: true    
    contents: |
      [Unit]
      Description=download kubelet aci (HTTP)
      Documentation=https://github.com/coreos/registry

      [Service]
      Type=oneshot  
      Environment=HTTP_SERVER={{ HTTP_SERVER_LOCAL }}
      ExecStart=/etc/kubernetes/scripts/kubelet.sh
      [Install]
      WantedBy=multi-user.target            
  - name: "kubelet.service"
    enable: true    
    contents: |
      [Unit]
      Description=kubelet
      Documentation=https://kubernetes.io
      Requires=kubelet-ssl.service kubelet-gac.service docker.service download-kubelet.service
      After=kubelet-ssl.service kubelet-gac.service docker.service download-kubelet.service
      [Service]
      ExecStartPre=/usr/bin/mkdir -p /etc/kubernetes/manifests
      ExecStartPre=/usr/bin/mkdir -p /var/log/containers
      ExecStartPre=-/usr/bin/rkt rm --uuid-file=/var/run/kubelet-pod.uuid

      Environment=PATH=/opt/bin/:/usr/bin/:/usr/sbin:$PATH
      Environment=KUBELET_IMAGE=/etc/kubernetes/downloads/hyperkube-v1.7.3.aci
      Environment="RKT_GLOBAL_ARGS=--insecure-options=image" 
      Environment="RKT_OPTS=--uuid-file-save=/var/run/kubelet-pod.uuid 
        --volume var-log,kind=host,source=/var/log 
        --mount volume=var-log,target=/var/log 
        --volume dns,kind=host,source=/etc/resolv.conf 
        --mount volume=dns,target=/etc/resolv.conf"

      ExecStart=/usr/lib/coreos/kubelet-wrapper 
        --api-servers=https://{{ MASTER_IP }}:6443 
        --network-plugin-dir=/etc/kubernetes/cni/net.d 
        --network-plugin= 
        --register-node=true 
        --allow-privileged=true 
        --pod-manifest-path=/etc/kubernetes/manifests 
        --hostname-override={{ WORKER_IP }} 
        --cluster-dns=10.3.0.10 
        --cluster-domain=cluster.local 
        --kubeconfig=/etc/kubernetes/kubelet-kubeconfig.yaml 
        --tls-cert-file=/etc/kubernetes/ssl/kubelet.pem 
        --tls-private-key-file=/etc/kubernetes/ssl/kubelet.key
        
      ExecStop=-/usr/bin/rkt stop --uuid-file=/var/run/kubelet-pod.uuid

      Restart=always
      RestartSec=10
      [Install]
      WantedBy=multi-user.target

　　

生成ignition.json

使用jinja2将上述模版转化为实际配置

./systech01.yml

./systech02.yml

./systech03.yml

 

下载CT工具将yml转化为ignition.json

# ct v0.4.2

2017.09.23

github : https://github.com/coreos/container-linux-config-transpiler

 

安装coreos

使用上面生成的ignition.json安装coreos，一切顺利访问https://192.168.3.102:6443/ui将会看到dashboard页面

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原文地址：https://www.cnblogs.com/mengkzhaoyun/p/7599695.html