我正在尝试使用http://severalnines.com/blog/installing-kubernetes-cluster-minions-centos7-manage-pods-services的指南在2个节点上建立一个kubernetes集群,centos 7.1.但是,当我尝试在minion上启动服务时,如下所示：
for SERVICES in kube-proxy kubelet docker flanneld; do
systemctl restart $SERVICES
systemctl enable $SERVICES
systemctl status $SERVICES
done
我收到以下错误：
-- Logs begin at Wed 2015-12-23 13:00:41 UTC,end at Wed 2015-12-23 16:03:54 UTC. --
Dec 23 16:03:47 sc-test2 systemd[1]: docker-storage-setup.service: main process exited,code=exited,status=1/FAILURE
Dec 23 16:03:47 sc-test2 systemd[1]: Failed to start Docker Storage Setup.
-- Subject: Unit docker-storage-setup.service has failed
-- Defined-By: systemd
-- Support: http://lists.freedesktop.org/mailman/listinfo/systemd-devel
--
-- Unit docker-storage-setup.service has failed.
--
-- The result is failed.
Dec 23 16:03:47 sc-test2 systemd[1]: Unit docker-storage-setup.service entered failed state.
Dec 23 16:03:48 sc-test2 flanneld[36477]: E1223 16:03:48.187350 36477 network.go:53] Failed to retrieve network config: 100: Key not found (/atomic.io)
Dec 23 16:03:49 sc-test2 flanneld[36477]: E1223 16:03:49.189860 36477 network.go:53] Failed to retrieve network config: 100: Key not found (/atomic.io)
Dec 23 16:03:50 sc-test2 flanneld[36477]: E1223 16:03:50.192894 36477 network.go:53] Failed to retrieve network config: 100: Key not found (/atomic.io)
Dec 23 16:03:51 sc-test2 flanneld[36477]: E1223 16:03:51.194940 36477 network.go:53] Failed to retrieve network config: 100: Key not found (/atomic.io)
Dec 23 16:03:52 sc-test2 flanneld[36477]: E1223 16:03:52.197222 36477 network.go:53] Failed to retrieve network config: 100: Key not found (/atomic.io)
Dec 23 16:03:53 sc-test2 flanneld[36477]: E1223 16:03:53.199248 36477 network.go:53] Failed to retrieve network config: 100: Key not found (/atomic.io)
Dec 23 16:03:54 sc-test2 flanneld[36477]: E1223 16:03:54.201160 36477 network.go:53] Failed to retrieve network config: 100: Key not found (/atomic.io)
我确定我在主人身上设置了关键：
etcdctl mk /coreos.com/network/config'{“Network”：“172.17.0.0/16”}’
到目前为止安装似乎是使用kubernetes最难的一点:(
今天的圣诞节,但我花了一整天努力让这个工作:)这就是我做的：
#1 FLANNEL
如上所述,我在主人身上设置法兰绒etcd键：
etcdctl mk /coreos.com/network/config'{“Network”：“172.17.0.0/16”}’
但是当我试图在奴才上开始法兰绒时我得到了这个错误：
无法检索网络配置：100：找不到密钥(/atomic.io)
所以我编辑了minion上的/ etc / sysconfig / flanneld文件：
# Flanneld configuration options
# etcd url location. Point this to the server where etcd runs
FLANNEL_ETCD="http://master:2379"
# etcd config key. This is the configuration key that flannel queries
# For address range assignment
FLANNEL_ETCD_KEY="/coreos.com/network"
# Any additional options that you want to pass
#FLANNEL_OPTIONS=""
to:
# Flanneld configuration options
# etcd url location. Point this to the server where etcd runs
FLANNEL_ETCD="http://master:2379"
# etcd config key. This is the configuration key that flannel queries
# For address range assignment
FLANNEL_ETCD_KEY="/atomic.io/network"
# Any additional options that you want to pass
#FLANNEL_OPTIONS=""
即更改了FLANNEL_ETCD键.
在此systemctl启动后,flanneld工作.
#2 DOCKER
我找不到通过kubernetes工作将版本作为依赖项安装的方法,所以我卸载它并遵循Centos安装的docker-engine的docker文档并手动为systemctl创建docker.service文件.
cd /usr/lib / systemd / system
和docker.service的内容：
[Unit]
Description=Docker Application Container Engine
Documentation=https://docs.docker.com
After=network.target docker.socket
Requires=docker.socket
Requires=flanneld.service
After=flanneld.service
[Service]
EnvironmentFile=/etc/sysconfig/flanneld
ExecStart=/usr/bin/docker daemon -H fd:// --bip=${FLANNEL_SUBNET}
Restart=on-failure
RestartSec=5
[Install]
WantedBy=multi-user.target
然后启动并使用systemctl启用守护程序以及查询状态.
systemctl restart docker
systemctl enable docker
systemctl status docker
