srkukarni commented on a change in pull request #1950: Enable Pulsar Functions to be deployed on a kubernetes cluster URL: https://github.com/apache/pulsar/pull/1950#discussion_r220681194
########## File path: pulsar-functions/runtime/src/main/java/org/apache/pulsar/functions/runtime/KubernetesRuntime.java ########## @@ -0,0 +1,507 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + */ + +package org.apache.pulsar.functions.runtime; + +import com.google.common.util.concurrent.FutureCallback; +import com.google.common.util.concurrent.Futures; +import com.google.common.util.concurrent.ListenableFuture; +import com.google.protobuf.Empty; +import com.squareup.okhttp.Response; +import io.grpc.ManagedChannel; +import io.grpc.ManagedChannelBuilder; +import io.kubernetes.client.apis.AppsV1Api; +import io.kubernetes.client.apis.CoreV1Api; +import io.kubernetes.client.custom.Quantity; +import io.kubernetes.client.models.*; +import lombok.Getter; +import lombok.extern.slf4j.Slf4j; +import org.apache.pulsar.functions.instance.AuthenticationConfig; +import org.apache.pulsar.functions.instance.InstanceConfig; +import org.apache.pulsar.functions.proto.Function; +import org.apache.pulsar.functions.proto.InstanceCommunication; +import org.apache.pulsar.functions.proto.InstanceCommunication.FunctionStatus; +import org.apache.pulsar.functions.proto.InstanceControlGrpc; + +import java.util.*; +import java.util.concurrent.CompletableFuture; +import java.util.regex.Matcher; +import java.util.regex.Pattern; + +import static java.net.HttpURLConnection.HTTP_CONFLICT; + +/** + * A function container implemented using java thread. + */ +@Slf4j +class KubernetesRuntime implements Runtime { + + private static final String ENV_SHARD_ID = "SHARD_ID"; + private static final Integer GRPC_PORT = 9093; + public static final Pattern VALID_POD_NAME_REGEX = + Pattern.compile("[a-z0-9]([-a-z0-9]*[a-z0-9])?(\\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*", + Pattern.CASE_INSENSITIVE); + + private final AppsV1Api appsClient; + private final CoreV1Api coreClient; + static final List<String> TOLERATIONS = Collections.unmodifiableList( + Arrays.asList( + "node.kubernetes.io/not-ready", + "node.alpha.kubernetes.io/notReady", + "node.alpha.kubernetes.io/unreachable" + ) + ); + + // The thread that invokes the function + @Getter + private List<String> processArgs; + @Getter + private ManagedChannel[] channel; + private InstanceControlGrpc.InstanceControlFutureStub[] stub; + private InstanceConfig instanceConfig; + private final String jobNamespace; + private final String pulsarDockerImageName; + private final String pulsarRootDir; + private final String userCodePkgUrl; + private final String originalCodeFileName; + private final String pulsarAdminUrl; + private boolean running; + + + KubernetesRuntime(AppsV1Api appsClient, + CoreV1Api coreClient, + String jobNamespace, + String pulsarDockerImageName, + String pulsarRootDir, + InstanceConfig instanceConfig, + String instanceFile, + String logDirectory, + String userCodePkgUrl, + String originalCodeFileName, + String pulsarServiceUrl, + String pulsarAdminUrl, + String stateStorageServiceUrl, + AuthenticationConfig authConfig) throws Exception { + this.appsClient = appsClient; + this.coreClient = coreClient; + this.instanceConfig = instanceConfig; + this.jobNamespace = jobNamespace; + this.pulsarDockerImageName = pulsarDockerImageName; + this.pulsarRootDir = pulsarRootDir; + this.userCodePkgUrl = userCodePkgUrl; + this.originalCodeFileName = originalCodeFileName; + this.pulsarAdminUrl = pulsarAdminUrl; + this.processArgs = RuntimeUtils.composeArgs(instanceConfig, instanceFile, logDirectory, originalCodeFileName, pulsarServiceUrl, stateStorageServiceUrl, + authConfig, "$" + ENV_SHARD_ID, GRPC_PORT, -1l, "conf/log4j2.yaml"); + running = false; + doChecks(instanceConfig.getFunctionDetails()); + } + + /** + * The core logic that initialize the thread container and executes the function Review comment: updated ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
