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@aws-cdk/aws-eks-v2-alpha

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The CDK Construct Library for AWS::EKS

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"use strict"; var _a; Object.defineProperty(exports, "__esModule", { value: true }); exports.KubectlProvider = void 0; const jsiiDeprecationWarnings = require("../.warnings.jsii.js"); const JSII_RTTI_SYMBOL_1 = Symbol.for("jsii.rtti"); const constructs_1 = require("constructs"); const cluster_1 = require("./cluster"); const iam = require("aws-cdk-lib/aws-iam"); const lambda = require("aws-cdk-lib/aws-lambda"); const core_1 = require("aws-cdk-lib/core"); const cr = require("aws-cdk-lib/custom-resources"); const lambda_layer_awscli_1 = require("aws-cdk-lib/lambda-layer-awscli"); const path = require("path"); /** * Implementation of Kubectl Lambda */ class KubectlProvider extends constructs_1.Construct { /** * Take existing provider on cluster * * @param scope Construct * @param cluster k8s cluster */ static getKubectlProvider(scope, cluster) { try { jsiiDeprecationWarnings._aws_cdk_aws_eks_v2_alpha_ICluster(cluster); } catch (error) { if (process.env.JSII_DEBUG !== "1" && error.name === "DeprecationError") { Error.captureStackTrace(error, this.getKubectlProvider); } throw error; } // if this is an "owned" cluster, we need to wait for the kubectl barrier // before applying any resources. if (cluster instanceof cluster_1.Cluster) { cluster._dependOnKubectlBarrier(scope); } return cluster.kubectlProvider; } /** * Import an existing provider * * @param scope Construct * @param id an id of resource * @param attrs attributes for the provider */ static fromKubectlProviderAttributes(scope, id, attrs) { try { jsiiDeprecationWarnings._aws_cdk_aws_eks_v2_alpha_KubectlProviderAttributes(attrs); } catch (error) { if (process.env.JSII_DEBUG !== "1" && error.name === "DeprecationError") { Error.captureStackTrace(error, this.fromKubectlProviderAttributes); } throw error; } class Import extends constructs_1.Construct { constructor() { super(...arguments); this.serviceToken = attrs.serviceToken; this.role = attrs.role; } } return new Import(scope, id); } constructor(scope, id, props) { super(scope, id); try { jsiiDeprecationWarnings._aws_cdk_aws_eks_v2_alpha_KubectlProviderProps(props); } catch (error) { if (process.env.JSII_DEBUG !== "1" && error.name === "DeprecationError") { Error.captureStackTrace(error, KubectlProvider); } throw error; } const vpc = props.privateSubnets ? props.cluster.vpc : undefined; let securityGroups; if (props.privateSubnets && props.cluster.clusterSecurityGroup) { securityGroups = [props.cluster.clusterSecurityGroup]; } const privateSubnets = props.privateSubnets ? { subnets: props.privateSubnets } : undefined; const handler = new lambda.Function(this, 'Handler', { timeout: core_1.Duration.minutes(15), description: 'onEvent handler for EKS kubectl resource provider', memorySize: props.memory?.toMebibytes() ?? 1024, environment: { // required and recommended for boto3 AWS_STS_REGIONAL_ENDPOINTS: 'regional', ...props.environment, }, role: props.role, code: lambda.Code.fromAsset(path.join(__dirname, 'kubectl-handler')), handler: 'index.handler', runtime: lambda.Runtime.PYTHON_3_11, // defined only when using private access vpc, securityGroups, vpcSubnets: privateSubnets, }); // allow user to customize the layers with the tools we need handler.addLayers(props.awscliLayer ?? new lambda_layer_awscli_1.AwsCliLayer(this, 'AwsCliLayer')); handler.addLayers(props.kubectlLayer); const handlerRole = handler.role; handlerRole.addToPrincipalPolicy(new iam.PolicyStatement({ actions: ['eks:DescribeCluster'], resources: [props.cluster.clusterArn], })); // taken from the lambda default role logic. // makes it easier for roles to be passed in. if (handler.isBoundToVpc) { handlerRole.addManagedPolicy(iam.ManagedPolicy.fromAwsManagedPolicyName('service-role/AWSLambdaVPCAccessExecutionRole')); } // For OCI helm chart authorization. handlerRole.addManagedPolicy(iam.ManagedPolicy.fromAwsManagedPolicyName('AmazonEC2ContainerRegistryReadOnly')); /** * For OCI helm chart public ECR authorization. As ECR public is only available in `aws` partition, * we conditionally attach this policy when the AWS partition is `aws`. */ const hasEcrPublicCondition = new core_1.CfnCondition(handlerRole.node.scope, 'HasEcrPublic', { expression: core_1.Fn.conditionEquals(core_1.Aws.PARTITION, 'aws'), }); const conditionalPolicy = iam.ManagedPolicy.fromManagedPolicyArn(this, 'ConditionalPolicyArn', core_1.Fn.conditionIf(hasEcrPublicCondition.logicalId, iam.ManagedPolicy.fromAwsManagedPolicyName('AmazonElasticContainerRegistryPublicReadOnly').managedPolicyArn, core_1.Aws.NO_VALUE).toString()); handlerRole.addManagedPolicy(iam.ManagedPolicy.fromManagedPolicyArn(this, 'conditionalPolicy', conditionalPolicy.managedPolicyArn)); const provider = new cr.Provider(this, 'Provider', { onEventHandler: handler, vpc: props.cluster.vpc, vpcSubnets: privateSubnets, securityGroups, }); this.serviceToken = provider.serviceToken; this.role = handlerRole; } } exports.KubectlProvider = KubectlProvider; _a = JSII_RTTI_SYMBOL_1; KubectlProvider[_a] = { fqn: "@aws-cdk/aws-eks-v2-alpha.KubectlProvider", version: "2.208.0-alpha.0" }; //# 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{ Construct, IConstruct } from 'constructs';\nimport { Cluster, ICluster } from './cluster';\nimport * as ec2 from 'aws-cdk-lib/aws-ec2';\nimport * as iam from 'aws-cdk-lib/aws-iam';\nimport * as lambda from 'aws-cdk-lib/aws-lambda';\nimport { Duration, CfnCondition, Fn, Aws, Size } from 'aws-cdk-lib/core';\nimport * as cr from 'aws-cdk-lib/custom-resources';\nimport { AwsCliLayer } from 'aws-cdk-lib/lambda-layer-awscli';\nimport * as path from 'path';\n\nexport interface KubectlProviderOptions {\n  /**\n   * An IAM role that can perform kubectl operations against this cluster.\n   *\n   * The role should be mapped to the `system:masters` Kubernetes RBAC role.\n   *\n   * This role is directly passed to the lambda handler that sends Kube Ctl commands to the cluster.\n   * @default - if not specified, the default role created by a lambda function will\n   * be used.\n   */\n  readonly role?: iam.IRole;\n\n  /**\n   * An AWS Lambda layer that contains the `aws` CLI.\n   *\n   * If not defined, a default layer will be used containing the AWS CLI 2.x.\n   */\n  readonly awscliLayer?: lambda.ILayerVersion;\n\n  /**\n   *\n   * Custom environment variables when running `kubectl` against this cluster.\n   */\n  readonly environment?: { [key: string]: string };\n\n  /**\n   * A security group to use for `kubectl` execution.\n   *\n   * @default - If not specified, the k8s endpoint is expected to be accessible\n   * publicly.\n   */\n  readonly securityGroup?: ec2.ISecurityGroup;\n\n  /**\n   * The amount of memory allocated to the kubectl provider's lambda function.\n   */\n  readonly memory?: Size;\n\n  /**\n   * An AWS Lambda layer that includes `kubectl` and `helm`\n   */\n  readonly kubectlLayer: lambda.ILayerVersion;\n\n  /**\n   * Subnets to host the `kubectl` compute resources. If not specified, the k8s\n   * endpoint is expected to be accessible publicly.\n   */\n  readonly privateSubnets?: ec2.ISubnet[];\n}\n\n/**\n * Properties for a KubectlProvider\n */\nexport interface KubectlProviderProps extends KubectlProviderOptions {\n  /**\n   * The cluster to control.\n   */\n  readonly cluster: ICluster;\n}\n\n/**\n * Kubectl Provider Attributes\n */\nexport interface KubectlProviderAttributes {\n  /**\n   * The kubectl provider lambda arn\n   */\n  readonly serviceToken: string;\n\n  /**\n   * The role of the provider lambda function.\n   * Only required if you deploy helm charts using this imported provider.\n   *\n   * @default - no role.\n   */\n  readonly role?: iam.IRole;\n}\n\n/**\n * Imported KubectlProvider that can be used in place of the default one created by CDK\n */\nexport interface IKubectlProvider extends IConstruct {\n  /**\n   * The custom resource provider's service token.\n   */\n  readonly serviceToken: string;\n\n  /**\n   * The role of the provider lambda function. If undefined,\n   * you cannot use this provider to deploy helm charts.\n   */\n  readonly role?: iam.IRole;\n}\n\n/**\n * Implementation of Kubectl Lambda\n */\nexport class KubectlProvider extends Construct implements IKubectlProvider {\n  /**\n   * Take existing provider on cluster\n   *\n   * @param scope Construct\n   * @param cluster k8s cluster\n   */\n  public static getKubectlProvider(scope: Construct, cluster: ICluster) {\n    // if this is an \"owned\" cluster, we need to wait for the kubectl barrier\n    // before applying any resources.\n    if (cluster instanceof Cluster) {\n      cluster._dependOnKubectlBarrier(scope);\n    }\n\n    return cluster.kubectlProvider;\n  }\n\n  /**\n   * Import an existing provider\n   *\n   * @param scope Construct\n   * @param id an id of resource\n   * @param attrs attributes for the provider\n   */\n  public static fromKubectlProviderAttributes(scope: Construct, id: string, attrs: KubectlProviderAttributes): IKubectlProvider {\n    class Import extends Construct implements IKubectlProvider {\n      public readonly serviceToken: string = attrs.serviceToken;\n      public readonly role?: iam.IRole = attrs.role;\n    }\n    return new Import(scope, id);\n  }\n\n  /**\n   * The custom resource provider's service token.\n   */\n  public readonly serviceToken: string;\n\n  /**\n   * The IAM execution role of the handler.\n   */\n  public readonly role?: iam.IRole;\n\n  public constructor(scope: Construct, id: string, props: KubectlProviderProps) {\n    super(scope, id);\n\n    const vpc = props.privateSubnets ? props.cluster.vpc : undefined;\n    let securityGroups;\n    if (props.privateSubnets && props.cluster.clusterSecurityGroup) {\n      securityGroups = [props.cluster.clusterSecurityGroup];\n    }\n    const privateSubnets = props.privateSubnets ? { subnets: props.privateSubnets } : undefined;\n\n    const handler = new lambda.Function(this, 'Handler', {\n      timeout: Duration.minutes(15),\n      description: 'onEvent handler for EKS kubectl resource provider',\n      memorySize: props.memory?.toMebibytes() ?? 1024,\n      environment: {\n        // required and recommended for boto3\n        AWS_STS_REGIONAL_ENDPOINTS: 'regional',\n        ...props.environment,\n      },\n      role: props.role,\n      code: lambda.Code.fromAsset(path.join(__dirname, 'kubectl-handler')),\n      handler: 'index.handler',\n      runtime: lambda.Runtime.PYTHON_3_11,\n      // defined only when using private access\n      vpc,\n      securityGroups,\n      vpcSubnets: privateSubnets,\n    });\n\n    // allow user to customize the layers with the tools we need\n    handler.addLayers(props.awscliLayer ?? new AwsCliLayer(this, 'AwsCliLayer'));\n    handler.addLayers(props.kubectlLayer);\n\n    const handlerRole = handler.role!;\n\n    handlerRole.addToPrincipalPolicy(new iam.PolicyStatement({\n      actions: ['eks:DescribeCluster'],\n      resources: [props.cluster.clusterArn],\n    }));\n\n    // taken from the lambda default role logic.\n    // makes it easier for roles to be passed in.\n    if (handler.isBoundToVpc) {\n      handlerRole.addManagedPolicy(iam.ManagedPolicy.fromAwsManagedPolicyName('service-role/AWSLambdaVPCAccessExecutionRole'));\n    }\n\n    // For OCI helm chart authorization.\n    handlerRole.addManagedPolicy(\n      iam.ManagedPolicy.fromAwsManagedPolicyName('AmazonEC2ContainerRegistryReadOnly'),\n    );\n\n    /**\n     * For OCI helm chart public ECR authorization. As ECR public is only available in `aws` partition,\n     * we conditionally attach this policy when the AWS partition is `aws`.\n     */\n    const hasEcrPublicCondition = new CfnCondition(handlerRole.node.scope!, 'HasEcrPublic', {\n      expression: Fn.conditionEquals(Aws.PARTITION, 'aws'),\n    });\n\n    const conditionalPolicy = iam.ManagedPolicy.fromManagedPolicyArn(this, 'ConditionalPolicyArn',\n      Fn.conditionIf(hasEcrPublicCondition.logicalId,\n        iam.ManagedPolicy.fromAwsManagedPolicyName('AmazonElasticContainerRegistryPublicReadOnly').managedPolicyArn,\n        Aws.NO_VALUE).toString(),\n    );\n\n    handlerRole.addManagedPolicy(iam.ManagedPolicy.fromManagedPolicyArn(this, 'conditionalPolicy', conditionalPolicy.managedPolicyArn));\n\n    const provider = new cr.Provider(this, 'Provider', {\n      onEventHandler: handler,\n      vpc: props.cluster.vpc,\n      vpcSubnets: privateSubnets,\n      securityGroups,\n    });\n\n    this.serviceToken = provider.serviceToken;\n    this.role = handlerRole;\n  }\n}\n"]}