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法兰绒和码头 Worker 没有开始

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我正在尝试使用http://severalnines.com/blog/installing-kubernetes-cluster-minions-centos7-manage-pods-services上的指南在2个节点上创建一个kubernetes集群，centos 7.1 . 但是，当我尝试像这样开始使用minion上的服务时：

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)

我确定我在主设备上设置了密钥：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:(

docker kubernetes etcd flannel

1 回答

  • 6

    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：

    Failed to retrieve network config: 100: Key not found (/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 .

    在这之后 systemctl start flanneld 工作了 .

    ＃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
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