k8s 1.12.6版的kubeadm默认配置文件

这个对于提高安装配置的便捷性，相当有帮助。

命令如下：

kubeadm config print-default

输出如下：

apiEndpoint:
  advertiseAddress: 1.2.3.4
  bindPort: 6443
apiVersion: kubeadm.k8s.io/v1alpha3
bootstrapTokens:
- groups:
  - system:bootstrappers:kubeadm:default-node-token
  token: abcdef.0123456789abcdef
  ttl: 24h0m0s
  usages:
  - signing
  - authentication
kind: InitConfiguration
nodeRegistration:
  criSocket: /var/run/dockershim.sock
  name: localhost.localdomain
  taints:
  - effect: NoSchedule
    key: node-role.kubernetes.io/master
---
apiVersion: kubeadm.k8s.io/v1alpha3
auditPolicy:
  logDir: /var/log/kubernetes/audit
  logMaxAge: 2
  path: ""
certificatesDir: /etc/kubernetes/pki
clusterName: kubernetes
controlPlaneEndpoint: ""
etcd:
  local:
    dataDir: /var/lib/etcd
    image: ""
imageRepository: k8s.gcr.io
kind: ClusterConfiguration
kubernetesVersion: v1.12.0
networking:
  dnsDomain: cluster.local
  podSubnet: ""
  serviceSubnet: 10.96.0.0/12
unifiedControlPlaneImage: ""
---
apiEndpoint:
  advertiseAddress: 192.168.1.111
  bindPort: 6443
apiVersion: kubeadm.k8s.io/v1alpha3
caCertPath: /etc/kubernetes/pki/ca.crt
clusterName: kubernetes
discoveryFile: ""
discoveryTimeout: 5m0s
discoveryToken: abcdef.0123456789abcdef
discoveryTokenAPIServers:
- kube-apiserver:6443
discoveryTokenUnsafeSkipCAVerification: true
kind: JoinConfiguration
nodeRegistration:
  criSocket: /var/run/dockershim.sock
  name: localhost.localdomain
tlsBootstrapToken: abcdef.0123456789abcdef
token: abcdef.0123456789abcdef
---
apiVersion: kubeproxy.config.k8s.io/v1alpha1
bindAddress: 0.0.0.0
clientConnection:
  acceptContentTypes: ""
  burst: 10
  contentType: application/vnd.kubernetes.protobuf
  kubeconfig: /var/lib/kube-proxy/kubeconfig.conf
  qps: 5
clusterCIDR: ""
configSyncPeriod: 15m0s
conntrack:
  max: null
  maxPerCore: 32768
  min: 131072
  tcpCloseWaitTimeout: 1h0m0s
  tcpEstablishedTimeout: 24h0m0s
enableProfiling: false
healthzBindAddress: 0.0.0.0:10256
hostnameOverride: ""
iptables:
  masqueradeAll: false
  masqueradeBit: 14
  minSyncPeriod: 0s
  syncPeriod: 30s
ipvs:
  excludeCIDRs: null
  minSyncPeriod: 0s
  scheduler: ""
  syncPeriod: 30s
kind: KubeProxyConfiguration
metricsBindAddress: 127.0.0.1:10249
mode: ""
nodePortAddresses: null
oomScoreAdj: -999
portRange: ""
resourceContainer: /kube-proxy
udpIdleTimeout: 250ms
---
address: 0.0.0.0
apiVersion: kubelet.config.k8s.io/v1beta1
authentication:
  anonymous:
    enabled: false
  webhook:
    cacheTTL: 2m0s
    enabled: true
  x509:
    clientCAFile: /etc/kubernetes/pki/ca.crt
authorization:
  mode: Webhook
  webhook:
    cacheAuthorizedTTL: 5m0s
    cacheUnauthorizedTTL: 30s
cgroupDriver: cgroupfs
cgroupsPerQOS: true
clusterDNS:
- 10.96.0.10
clusterDomain: cluster.local
configMapAndSecretChangeDetectionStrategy: Watch
containerLogMaxFiles: 5
containerLogMaxSize: 10Mi
contentType: application/vnd.kubernetes.protobuf
cpuCFSQuota: true
cpuCFSQuotaPeriod: 100ms
cpuManagerPolicy: none
cpuManagerReconcilePeriod: 10s
enableControllerAttachDetach: true
enableDebuggingHandlers: true
enforceNodeAllocatable:
- pods
eventBurst: 10
eventRecordQPS: 5
evictionHard:
  imagefs.available: 15%
  memory.available: 100Mi
  nodefs.available: 10%
  nodefs.inodesFree: 5%
evictionPressureTransitionPeriod: 5m0s
failSwapOn: true
fileCheckFrequency: 20s
hairpinMode: promiscuous-bridge
healthzBindAddress: 127.0.0.1
healthzPort: 10248
httpCheckFrequency: 20s
imageGCHighThresholdPercent: 85
imageGCLowThresholdPercent: 80
imageMinimumGCAge: 2m0s
iptablesDropBit: 15
iptablesMasqueradeBit: 14
kind: KubeletConfiguration
kubeAPIBurst: 10
kubeAPIQPS: 5
makeIPTablesUtilChains: true
maxOpenFiles: 1000000
maxPods: 110
nodeLeaseDurationSeconds: 40
nodeStatusUpdateFrequency: 10s
oomScoreAdj: -999
podPidsLimit: -1
port: 10250
registryBurst: 10
registryPullQPS: 5
resolvConf: /etc/resolv.conf
rotateCertificates: true
runtimeRequestTimeout: 2m0s
serializeImagePulls: true
staticPodPath: /etc/kubernetes/manifests
streamingConnectionIdleTimeout: 4h0m0s
syncFrequency: 1m0s
volumeStatsAggPeriod: 1m0s

这个要经常看看。