这是基于云的CentOS 7，我在云FW中打开了端口8080、80、22，但不确定为什么不起作用。
/etc/etcd/etcd.conf文件
# [member]
ETCD_NAME=default
ETCD_DATA_DIR="/var/lib/etcd/default.etcd"
#ETCD_WAL_DIR=""
#ETCD_SNAPSHOT_COUNT="10000"
#ETCD_HEARTBEAT_INTERVAL="100"
#ETCD_ELECTION_TIMEOUT="1000"
#ETCD_LISTEN_PEER_URLS="http://localhost:2380"
ETCD_LISTEN_CLIENT_URLS="http://localhost:2379"
#ETCD_MAX_SNAPSHOTS="5"
#ETCD_MAX_WALS="5"
#ETCD_CORS=""
#
#[cluster]
#ETCD_INITIAL_ADVERTISE_PEER_URLS="http://localhost:2380"
# if you use different ETCD_NAME (e.g. test), set ETCD_INITIAL_CLUSTER value for this name, i.e. "test=http://..."
#ETCD_INITIAL_CLUSTER="default=http://localhost:2380"
#ETCD_INITIAL_CLUSTER_STATE="new"
#ETCD_INITIAL_CLUSTER_TOKEN="etcd-cluster"
ETCD_ADVERTISE_CLIENT_URLS="http://localhost:2379"
#ETCD_DISCOVERY=""
#ETCD_DISCOVERY_SRV=""
#ETCD_DISCOVERY_FALLBACK="proxy"
#ETCD_DISCOVERY_PROXY=""
#
#[proxy]
#ETCD_PROXY="off"
#ETCD_PROXY_FAILURE_WAIT="5000"
#ETCD_PROXY_REFRESH_INTERVAL="30000"
#ETCD_PROXY_DIAL_TIMEOUT="1000"
#ETCD_PROXY_WRITE_TIMEOUT="5000"
#ETCD_PROXY_READ_TIMEOUT="0"
#
#[security]
#ETCD_CERT_FILE=""
#ETCD_KEY_FILE=""
#ETCD_CLIENT_CERT_AUTH="false"
#ETCD_TRUSTED_CA_FILE=""
#ETCD_PEER_CERT_FILE=""
#ETCD_PEER_KEY_FILE=""
#ETCD_PEER_CLIENT_CERT_AUTH="false"
#ETCD_PEER_TRUSTED_CA_FILE=""
#
#[logging]
#ETCD_DEBUG="false"
# examples for -log-package-levels etcdserver=WARNING,security=DEBUG
#ETCD_LOG_PACKAGE_LEVELS=""
/etc/kubernetes/apiserver
# kubernetes system config
#
# The following values are used to configure the kube-apiserver
#
# The address on the local server to listen to.
KUBE_API_ADDRESS="--address= 0.0.0.0"
# The port on the local server to listen on.
KUBE_API_PORT="--port=8080"
# Port minions listen on
KUBELET_PORT="--kubelet-port=10250"
# Comma separated list of nodes in the etcd cluster
KUBE_ETCD_SERVERS="--etcd_servers=http://127.0.0.1:2379"
# Address range to use for services
KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16"
# default admission control policies
KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ServiceAccount,ResourceQuota"
# Add your own!
KUBE_API_ARGS=""
然后我用journalctl -xn
journalctl -xn
-- Logs begin at Fri 2017-03-10 11:15:11 UTC, end at Fri 2017-03-10 13:42:17 UTC. --
Mar 10 13:42:17 localhost.localdomain kube-controller-manager[39099]: E0310 13:42:17.377324 39099 leaderelection.go:228] error retrieving resource lock kube-system/kube-controller-manager: Get http://127.0.0.1:8080/api/v1/namespaces/kube-system/endpoints/kube-controller-manager: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.495553 39132 leaderelection.go:228] error retrieving resource lock kube-system/kube-scheduler: Get http://127.0.0.1:8080/api/v1/namespaces/kube-system/endpoints/kube-scheduler: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.980339 39132 reflector.go:199] k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:466: Failed to list *api.PersistentVolume: Get http://127.0.0.1:8080/api/v1/persistentvolumes?resourceVersion=0: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.980435 39132 reflector.go:199] k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:481: Failed to list *extensions.ReplicaSet: Get http://127.0.0.1:8080/apis/extensions/v1beta1/replicasets?resourceVersion=0: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.981756 39132 reflector.go:199] pkg/controller/informers/factory.go:89: Failed to list *api.PersistentVolumeClaim: Get http://127.0.0.1:8080/api/v1/persistentvolumeclaims?resourceVersion=0: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.983770 39132 reflector.go:199] k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:460: Failed to list *api.Pod: Get http://127.0.0.1:8080/api/v1/pods?fieldSelector=spec.nodeName%21%3D%2Cstatus.phase%21%3DFailed%2Cstatus.phase%21%3DSucceeded&resourceVersion=0: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.983834 39132 reflector.go:199] k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:473: Failed to list *api.ReplicationController: Get http://127.0.0.1:8080/api/v1/replicationcontrollers?resourceVersion=0: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.983897 39132 reflector.go:199] k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:470: Failed to list *api.Service: Get http://127.0.0.1:8080/api/v1/services?resourceVersion=0: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.984741 39132 reflector.go:199] k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:463: Failed to list *api.Node: Get http://127.0.0.1:8080/api/v1/nodes?resourceVersion=0: dial tcp 127.0.0.1:8080: getsockopt: connection refused
Mar 10 13:42:17 localhost.localdomain kube-scheduler[39132]: E0310 13:42:17.984782 39132 reflector.go:199] k8s.io/kubernetes/plugin/pkg/scheduler/factory/factory.go:457: Failed to list *api.Pod: Get http://127.0.0.1:8080/api/v1/pods?fieldSelector=spec.nodeName%3D%2Cstatus.phase%21%3DFailed%2Cstatus.phase%21%3DSucceeded&resourceVersion=0: dial tcp 127.0.0.1:8080: getsockopt: connection refused
似乎它拒绝连接
最佳答案
连接被拒绝不是来自etcd连接。控制器管理器正在尝试连接到kubernetes API。
启动API实例（它是连接到etcd的组件），它应该可以工作。
关于centos - 无法启动Kubernetes API Server，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/42718931/