我正在尝试安装Kubernetes。
配置详情：
FQDN：coreos-2.tux-in.com
用于安装的环境变量：
export MASTER_FQDN=coreos-2.tux-in.com
export MASTER_IP=192.168.1.2
export WORKER_IP=192.168.1.3
export WORKER_FQDN=coreos-3.tux-in.com
export ETCD_ENDPOINTS=http://127.0.0.1:4001
export ADVERTISE_IP=192.168.1.2
export K8S_VER=v1.5.4_coreos.0
export HYPERKUBE_IMAGE_REPO=quay.io/coreos/hyperkube
export POD_NETWORK=10.2.0.0/16
export SERVICE_IP_RANGE=10.3.0.0/24
export K8S_SERVICE_IP=10.3.0.1
export DNS_SERVICE_IP=10.3.0.10
export USE_CALICO=true
export CONTAINER_RUNTIME=rkt
export EMAIL="kfirufk@gmail.com"
export uuid_file="/var/run/kubelet-pod.uuid"
FQDN：coreos-3.tux-in.com
用于安装的环境变量
export ETCD_ENDPOINTS=http://127.0.0.1:4001
export CONTROLLER_ENDPOINT=https://coreos-2.tux-in.com
export ADVERTISE_IP=192.168.1.3
export K8S_VER=v1.5.4_coreos.0
export HYPERKUBE_IMAGE_REPO=quay.io/coreos/hyperkube
export POD_NETWORK=10.2.0.0/16
export DNS_SERVICE_IP=10.3.0.10
export USE_CALICO=true
export CONTAINER_RUNTIME=rkt
export EMAIL="kfirufk@gmail.com"
export uuid_file="/var/run/kubelet-pod.uuid"
export CALICO_OPTS="--volume cni-bin,kind=host,source=/opt/cni/bin \
--mount volume=cni-bin,target=/opt/cni/bin"
我使用coreos-kubernetes的分支来安装控制器和工作者（https://github.com/kfirufk/coreos-kubernetes）。
kubectl get nodes返回
NAME STATUS AGE
192.168.1.2 Ready 4h
192.168.1.3 Ready 4h
kubectl get pods --all-namespaces返回：
NAMESPACE NAME READY STATUS RESTARTS AGE
ceph ceph-mds-2743106415-rkww4 0/1 Pending 0 4h
ceph ceph-mon-check-3856521781-bd6k5 1/1 Running 0 4h
kube-lego kube-lego-3323932148-g2tf4 1/1 Running 0 4h
kube-system calico-node-xq6j7 2/2 Running 0 4h
kube-system calico-node-xzpp2 0/2 Completed 488 4h
kube-system calico-policy-controller-610849172-b7xjr 1/1 Running 0 4h
kube-system heapster-v1.3.0-beta.0-2754576759-v1f50 2/2 Running 0 3h
kube-system kube-apiserver-192.168.1.2 1/1 Running 0 4h
kube-system kube-controller-manager-192.168.1.2 1/1 Running 1 4h
kube-system kube-dns-3675956729-r7hhf 3/4 Running 784 4h
kube-system kube-dns-autoscaler-505723555-l2pph 1/1 Running 973 4h
kube-system kube-proxy-192.168.1.2 1/1 Running 0 4h
kube-system kube-proxy-192.168.1.3 1/1 Running 0 4h
kube-system kube-scheduler-192.168.1.2 1/1 Running 1 4h
kube-system kubernetes-dashboard-3697905830-vdz23 1/1 Running 262 4h
kube-system monitoring-grafana-4013973156-m2r2v 1/1 Running 0 4h
kube-system monitoring-influxdb-651061958-2mdtf 1/1 Running 0 4h
nginx-ingress default-http-backend-150165654-s4z04 1/1 Running 2 4h
我注意到两个服务没有完全正常工作..
kube-dns-3675956729-r7hhf - 4个服务中有3个准备就绪
calico-node-xzpp2 - 工作节点上的calico节点（coreos-3.tux-in.com）不断重启
kubectl describe pod calico-node-xzpp2 --namespace=kube-system返回：
Name: calico-node-xzpp2
Namespace: kube-system
Node: 192.168.1.3/192.168.1.3
Start Time: Sat, 11 Mar 2017 20:02:02 +0200
Labels: k8s-app=calico-node
Status: Running
IP: 192.168.1.3
Controllers: DaemonSet/calico-node
Containers:
calico-node:
Container ID: rkt://d826868f-e7f5-47af-8d5e-e5779cbc4a19:calico-node
Image: quay.io/calico/node:v1.1.0-rc8
Image ID: rkt://sha512-a03825f68ef98ab015a46de463e446c70c3ed5ccc1187a09f0cbe5d5bb594953
Port:
Command:
/bin/sh
-c
Args:
mount -o remount,rw /proc/sys && start_runit
State: Terminated
Reason: Completed
Exit Code: 0
Started: Sun, 12 Mar 2017 00:07:01 +0200
Finished: Sun, 12 Mar 2017 00:07:01 +0200
Last State: Terminated
Reason: Completed
Exit Code: 0
Started: Sun, 12 Mar 2017 00:06:59 +0200
Finished: Sun, 12 Mar 2017 00:06:59 +0200
Ready: False
Restart Count: 326
Volume Mounts:
/calico-secrets from etcd-certs (rw)
/lib/modules from lib-modules (rw)
/var/run/calico from var-run-calico (rw)
/var/run/secrets/kubernetes.io/serviceaccount from default-token-zqbdp (ro)
Environment Variables:
ETCD_ENDPOINTS: <set to the key 'etcd_endpoints' of config map 'calico-config'>
CALICO_NETWORKING_BACKEND: <set to the key 'calico_backend' of config map 'calico-config'>
CALICO_DISABLE_FILE_LOGGING: true
NO_DEFAULT_POOLS: true
FELIX_LOGSEVERITYSCREEN: info
ETCD_CA_CERT_FILE: <set to the key 'etcd_ca' of config map 'calico-config'>
ETCD_KEY_FILE: <set to the key 'etcd_key' of config map 'calico-config'>
ETCD_CERT_FILE: <set to the key 'etcd_cert' of config map 'calico-config'>
IP:
install-cni:
Container ID: rkt://d826868f-e7f5-47af-8d5e-e5779cbc4a19:install-cni
Image: quay.io/calico/cni:v1.6.0-4-g76b234c
Image ID: rkt://sha512-9a04ebb8ecc83b261e937a2ad1a5abefd09b1573f7c5fb05aafcfda59cc7806b
Port:
Command:
/bin/sh
-c
Args:
export CNI_NETWORK_CONFIG=$(cat /host/cni_network_config/config.conf) && /install-cni.sh
State: Terminated
Reason: Completed
Exit Code: 0
Started: Sun, 12 Mar 2017 00:07:01 +0200
Finished: Sun, 12 Mar 2017 00:07:01 +0200
Last State: Terminated
Reason: Completed
Exit Code: 0
Started: Sun, 12 Mar 2017 00:06:59 +0200
Finished: Sun, 12 Mar 2017 00:06:59 +0200
Ready: False
Restart Count: 326
Volume Mounts:
/calico-secrets from etcd-certs (rw)
/host/cni_network_config from cni-config (rw)
/host/etc/cni/net.d from cni-net-dir (rw)
/host/opt/cni/bin from cni-bin-dir (rw)
/var/run/secrets/kubernetes.io/serviceaccount from default-token-zqbdp (ro)
Environment Variables:
ETCD_ENDPOINTS: <set to the key 'etcd_endpoints' of config map 'calico-config'>
CNI_CONF_NAME: 10-calico.conf
Conditions:
Type Status
Initialized True
Ready False
PodScheduled True
Volumes:
lib-modules:
Type: HostPath (bare host directory volume)
Path: /lib/modules
var-run-calico:
Type: HostPath (bare host directory volume)
Path: /var/run/calico
cni-bin-dir:
Type: HostPath (bare host directory volume)
Path: /opt/cni/bin
cni-net-dir:
Type: HostPath (bare host directory volume)
Path: /etc/kubernetes/cni/net.d
etcd-certs:
Type: Secret (a volume populated by a Secret)
SecretName: calico-etcd-secrets
cni-config:
Type: ConfigMap (a volume populated by a ConfigMap)
Name: calico-config
default-token-zqbdp:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-zqbdp
QoS Class: BestEffort
Tolerations: CriticalAddonsOnly=:Exists
dedicated=master:NoSchedule
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
13s 13s 1 {kubelet 192.168.1.3} spec.containers{install-cni} Normal Created Created with rkt id afedb13c
13s 13s 1 {kubelet 192.168.1.3} spec.containers{calico-node} Normal Started Started with rkt id afedb13c
Created和Started eents for install-cni and calico-node`还有更多消息。
kubectl logs calico-node-xzpp2 --namespace=kube-system -c install-cni OR calico-node返回空输出。
如何进一步调查此问题？
感谢
答案 0 :(得分：2)
我检查主机节点无法启动的主机上的journalctl -xe。因为你从kubectl logs calico-node...得不到任何东西，所以听起来容器甚至无法启动。