Can't create ReplicationController for Nginx in Kubernetes
要为k8s创建一个
遵循此创建的
https://github.com/kubernetes/contrib/blob/master/ingress/controllers/nginx/examples/proxy-protocol/nginx-rc.yaml
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | apiVersion: v1 kind: ReplicationController metadata: name: nginx-ingress-controller labels: k8s-app: nginx-ingress-lb spec: replicas: 1 selector: k8s-app: nginx-ingress-lb template: metadata: labels: k8s-app: nginx-ingress-lb name: nginx-ingress-lb spec: terminationGracePeriodSeconds: 60 containers: - image: gcr.io/google_containers/nginx-ingress-controller:0.8.3 name: nginx-ingress-lb imagePullPolicy: Always readinessProbe: httpGet: path: /healthz port: 10254 scheme: HTTP livenessProbe: httpGet: path: /healthz port: 10254 scheme: HTTP initialDelaySeconds: 10 timeoutSeconds: 1 # use downward API env: - name: POD_NAME valueFrom: fieldRef: fieldPath: metadata.name - name: POD_NAMESPACE valueFrom: fieldRef: fieldPath: metadata.namespace ports: - containerPort: 80 - containerPort: 443 args: - /nginx-ingress-controller - --default-backend-service=$(POD_NAMESPACE)/default-http-backend - --nginx-configmap=$(POD_NAMESPACE)/nginx-ingress-controller |
创建后，k8s显示：
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | $ kubectl describe pod nginx-ingress-controller-5wxch Name: nginx-ingress-controller-5wxch Namespace: default Node: minikube/192.168.99.100 Start Time: Fri, 17 Nov 2017 15:50:33 +0900 Labels: k8s-app=nginx-ingress-lb name=nginx-ingress-lb Annotations: kubernetes.io/created-by={"kind":"SerializedReference","apiVersion":"v1","reference":{"kind":"ReplicationController","namespace":"default","name":"nginx-ingress-controller","uid":"9c1aba15-cb63-11e7-9... Status: Running IP: 172.17.0.15 Created By: ReplicationController/nginx-ingress-controller Controlled By: ReplicationController/nginx-ingress-controller Containers: nginx-ingress-lb: Container ID: docker://9fabc8d7f74b442c35ac5f443e7f35117b183e61aa37851dfdb5847d90252672 Image: gcr.io/google_containers/nginx-ingress-controller:0.8.3 Image ID: docker-pullable://gcr.io/google_containers/nginx-ingress-controller@sha256:820c338dc22eda7ab6331001da3cccd43b1b7dcd179049d33a62ad6deaef8daf Ports: 80/TCP, 443/TCP Args: /nginx-ingress-controller --default-backend-service=$(POD_NAMESPACE)/default-http-backend --nginx-configmap=$(POD_NAMESPACE)/nginx-ingress-controller State: Waiting Reason: CrashLoopBackOff Last State: Terminated Reason: Error Exit Code: 255 Started: Fri, 17 Nov 2017 15:52:43 +0900 Finished: Fri, 17 Nov 2017 15:52:43 +0900 Ready: False Restart Count: 4 Liveness: http-get http://:10254/healthz delay=10s timeout=1s period=10s #success=1 #failure=3 Readiness: http-get http://:10254/healthz delay=0s timeout=1s period=10s #success=1 #failure=3 Environment: POD_NAME: nginx-ingress-controller-5wxch (v1:metadata.name) POD_NAMESPACE: default (v1:metadata.namespace) Mounts: /var/run/secrets/kubernetes.io/serviceaccount from default-token-0nlh9 (ro) Conditions: Type Status Initialized True Ready False PodScheduled True Volumes: default-token-0nlh9: Type: Secret (a volume populated by a Secret) SecretName: default-token-0nlh9 Optional: false QoS Class: BestEffort Node-Selectors: <none> Tolerations: <none> Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 3m default-scheduler Successfully assigned nginx-ingress-controller-5wxch to minikube Normal SuccessfulMountVolume 3m kubelet, minikube MountVolume.SetUp succeeded for volume"default-token-0nlh9" Warning Unhealthy 2m kubelet, minikube Readiness probe failed: Get http://172.17.0.15:10254/healthz: dial tcp 172.17.0.15:10254: getsockopt: connection refused Normal Pulling 1m (x5 over 3m) kubelet, minikube pulling image"gcr.io/google_containers/nginx-ingress-controller:0.8.3" Normal Pulled 1m (x5 over 2m) kubelet, minikube Successfully pulled image"gcr.io/google_containers/nginx-ingress-controller:0.8.3" Normal Created 1m (x5 over 2m) kubelet, minikube Created container Normal Started 1m (x5 over 2m) kubelet, minikube Started container Warning BackOff 0s (x17 over 2m) kubelet, minikube Back-off restarting failed container Warning FailedSync 0s (x17 over 2m) kubelet, minikube Error syncing pod |
现在在Mac上使用minikube。 kubernetes版本是：
1 2 3 | $ kubectl version Client Version: version.Info{Major:"1", Minor:"8", GitVersion:"v1.8.2", GitCommit:"bdaeafa71f6c7c04636251031f93464384d54963", GitTreeState:"clean", BuildDate:"2017-10-24T19:48:57Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"darwin/amd64"} Server Version: version.Info{Major:"1", Minor:"7", GitVersion:"v1.7.5", GitCommit:"17d7182a7ccbb167074be7a87f0a68bd00d58d97", GitTreeState:"clean", BuildDate:"2017-10-06T20:53:14Z", GoVersion:"go1.8.3", Compiler:"gc", Platform:"linux/amd64"} |
那是什么原因？此版本是否不支持配置文件，或者配置文件已过时？
您可以像以前一样通过
以及
最后，使用
检查pod的日志。
当我复制您的清单yaml文件时，
kubectl logs nginx-ingress-controller-test-4mgw7
I1117 08:44:11.650301 1 main.go:94] Using build: https://github.com/bprashanth/contrib.git - git-92b2bac
F1117 08:44:11.703533 1 main.go:121] no service with name default/default-http-backend found: services"default-http-backend" not found
所以您去了，就缺少了后端服务。
提示：安装入口nginx控制器的一种更简单的方法可能是：
helm install ing-nginx-ctrl stable/nginx-ingress
有一个舵表。