本人第一次尝试在k8s上部署flink，版本用的是1.12.0，jdk是1.8.0_275，scala是2.12.12，在我的mac机器上安装有minikube单机环境，以下是实验步骤：
git clone https://github.com/apache/flink-dockercdflink-docker/1.12/scala_2.12-java8-debian docker build --tag flink:1.12.0-scala_2.12-java8 . cd flink-1.12.0 ./bin/kubernetes-session.sh \ -Dkubernetes.container.image=flink:1.12.0-scala_2.12-java8 \ -Dkubernetes.rest-service.exposed.type=NodePort \ -Dtaskmanager.numberOfTaskSlots=2 \ -Dkubernetes.cluster-id=flink-session-cluster 显示JM启起来了，但无法通过web访问 2020-12-27 22:08:12,387 INFO org.apache.flink.kubernetes.KubernetesClusterDescriptor [] - Create flink session cluster session001 successfully, JobManager Web Interface: http://192.168.99.100:8081 通过 `kubectl get pods` 命令查看到pod一直处理ContainerCreating状态 NAME READY STATUS RESTARTS AGE flink-session-cluster-858bd55dff-bzjk2 0/1 ContainerCreating 0 5m59s kubernetes-dashboard-1608509744-6bc8455756-mp47w 1/1 Running 0 6d14h 于是通过 `kubectl describe pod flink-session-cluster-858bd55dff-bzjk2`命令查看详细，结果如下： Name: flink-session-cluster-858bd55dff-bzjk2 Namespace: default Priority: 0 Node: minikube/192.168.99.100 Start Time: Sun, 27 Dec 2020 22:21:56 +0800 Labels: app=flink-session-cluster component=jobmanager pod-template-hash=858bd55dff type=flink-native-kubernetes Annotations: <none> Status: Pending IP: 172.17.0.4 IPs: IP: 172.17.0.4 Controlled By: ReplicaSet/flink-session-cluster-858bd55dff Containers: flink-job-manager: Container ID: Image: flink:1.12.0-scala_2.12-java8 Image ID: Ports: 8081/TCP, 6123/TCP, 6124/TCP Host Ports: 0/TCP, 0/TCP, 0/TCP Command: /docker-entrypoint.sh Args: native-k8s $JAVA_HOME/bin/java -classpath $FLINK_CLASSPATH -Xmx1073741824 -Xms1073741824 -XX:MaxMetaspaceSize=268435456 -Dlog.file=/opt/flink/log/jobmanager.log -Dlogback.configurationFile=file:/opt/flink/conf/logback-console.xml -Dlog4j.configuration=file:/opt/flink/conf/log4j-console.properties -Dlog4j.configurationFile=file:/opt/flink/conf/log4j-console.properties org.apache.flink.kubernetes.entrypoint.KubernetesSessionClusterEntrypoint -D jobmanager.memory.off-heap.size=134217728b -D jobmanager.memory.jvm-overhead.min=201326592b -D jobmanager.memory.jvm-metaspace.size=268435456b -D jobmanager.memory.heap.size=1073741824b -D jobmanager.memory.jvm-overhead.max=201326592b State: Waiting Reason: ImagePullBackOff Ready: False Restart Count: 0 Limits: cpu: 1 memory: 1600Mi Requests: cpu: 1 memory: 1600Mi Environment: _POD_IP_ADDRESS: (v1:status.podIP) HADOOP_CONF_DIR: /opt/hadoop/conf Mounts: /opt/flink/conf from flink-config-volume (rw) /opt/hadoop/conf from hadoop-config-volume (rw) /var/run/secrets/kubernetes.io/serviceaccount from default-token-s47ht (ro) Conditions: Type Status Initialized True Ready False ContainersReady False PodScheduled True Volumes: hadoop-config-volume: Type: ConfigMap (a volume populated by a ConfigMap) Name: hadoop-config-flink-session-cluster Optional: false flink-config-volume: Type: ConfigMap (a volume populated by a ConfigMap) Name: flink-config-flink-session-cluster Optional: false default-token-s47ht: Type: Secret (a volume populated by a Secret) SecretName: default-token-s47ht Optional: false QoS Class: Guaranteed Node-Selectors: <none> Tolerations: node.kubernetes.io/not-ready:NoExecute op=Exists for 300s node.kubernetes.io/unreachable:NoExecute op=Exists for 300s Events: Type Reason Age From Message ---- ------ ---- ---- ------- Normal Scheduled 21m default-scheduler Successfully assigned default/flink-session-cluster-858bd55dff-bzjk2 to minikube Warning FailedMount 21m (x2 over 21m) kubelet MountVolume.SetUp failed for volume "flink-config-volume" : configmap "flink-config-flink-session-cluster" not found Warning FailedMount 21m (x2 over 21m) kubelet MountVolume.SetUp failed for volume "hadoop-config-volume" : configmap "hadoop-config-flink-session-cluster" not found Normal Pulling 13m (x4 over 21m) kubelet Pulling image "flink:1.12.0-scala_2.12-java8" Warning Failed 13m (x4 over 15m) kubelet Failed to pull image "flink:1.12.0-scala_2.12-java8": rpc error: code = Unknown desc = Error response from daemon: manifest for flink:1.12.0-scala_2.12-java8 not found: manifest unknown: manifest unknown Normal BackOff 13m (x5 over 15m) kubelet Back-off pulling image "flink:1.12.0-scala_2.12-java8" Warning Failed 11m (x5 over 15m) kubelet Error: ErrImagePull Warning Failed 100s (x53 over 15m) kubelet Error: ImagePullBackOff 一开始怀疑本地镜像没有生成，于是通过 `docker images` 命令查看 REPOSITORY TAG IMAGE ID CREATED SIZE flink 1.12.0-scala_2.12-java8 f7dd9b9e020b 12 hours ago 642MB 显示镜像的确是存在的，这就奇怪了，为什么从本地pull镜像会失败呢？是哪里有问题了吗？minikube下，如何从本地web访问到k8s上运行的flink集群dashboard呢？ 第一次用k8s，还请各位指点，谢谢！
