Kubernetes Cluster Network configuration Scenario--flannel deployment

Deployment environment:

CentOS Linux Release 7.2 64-bit

10.10.0.103 node01

10.10.0.49 NODE02

Installation process:

# Yum Install flannel

# tar zxf flannel-v0.8.0-linux-amd64_.tar.gz

# CP flanneld/usr/bin/

# CP mk-docker-opts.sh/usr/bin/

To edit a service configuration file:

#cat/usr/lib/systemd/system/flanneld.service [Unit]description=flanneld overlay address Etcd agentafter= network.targetbefore=docker.service[service]type=notifyenvironmentfile=/etc/sysconfig/flannelexecstart=/usr/ BIN/FLANNELD-ETCD-ENDPOINTS=${FLANNEL_ETCD} $FLANNEL _options[install]requiredby=docker.servicewantedby= Multi-user.target

To edit a configuration file:

#cat/etc/sysconfig/flannel flannel_etcd= "http://10.10.0.103:2379,http://10.10.0.49:2379" flannel_etcd_key= "/ Coreos.com/network "

Add a network configuration information in the ETCD Library, flannel to allocate the virtual IP address segment for Docker:

# Etcdctl Set/coreos.com/network/config

# Etcdctl Get/coreos.com/network/config

{"Network": "10.1.0.0/16"}

# Systemctl Start Flanneld

# mk-docker-ops.sh-i

# source/run/flannel/subnet.env

# ifconfig Docker0 ${flannel_subment}

#ifconfig View Docker network card IP

docker0: flags=4163<up,broadcast,running,multicast>  mtu 1500         inet 10.1.8.1  netmask 255.255.255.0  broadcast  10.1.8.255        ether 02:42:bf:cb:f1:ff   txqueuelen 0   (Ethernet)         RX packets  40369  bytes 8671191  (8.2&NBSP;MIB)         rx  errors 0  dropped 0  overruns 0  frame 0         TX packets 40663  bytes 3818695  (3.6  MiB)         TX errors 0  dropped 0  Overruns 0  carrier 0  collisions 0eth0: flags=4163<up,broadcast, running,multicast>  mtu 1500        inet 10.10.0.103  netmask 255.255.0.0   broadcast 10.10.255.255        ether 00:16:3e:0 8:93:f7  txqueuelen 1000   (Ethernet)          rx packets 2033352  bytes 695497718  (663.2&NBSP;MIB)          RX errors 0  dropped 0  overruns 0   Frame 0        tx packets 1378035  bytes  2166169069  (2.0 gib)         tx errors 0   dropped 0 overruns 0  carrier 0  collisions 0flannel0 : flags=4305<up,pointopoint,running,noarp,multicast>  mtu 1472         inet 10.1.8.0  netmask 255.255.0.0  destination 10.1.8.0         unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00   txqueuelen 500   (UNSPEC)         rx packets 6   bytes 504  (504.0 b)         rx errors  0  dropped 0  overruns 0  frame 0         TX packets 6  bytes 504  (504.0 b)          TX errors 0  dropped 0 overruns 0   Carrier 0  collisions 0

The other node also repeats the above installation steps.

This article is from the "Zhaohaihua _ Yun-dimensional Road" blog, please be sure to keep this source http://baiying.blog.51cto.com/1068039/1967156

Kubernetes Cluster Network configuration Scenario--flannel deployment