cdk-drizzle-migrate
Version:
AWS CDK construct for running Drizzle ORM migrations
154 lines • 24.7 kB
JavaScript
;
var _a;
Object.defineProperty(exports, "__esModule", { value: true });
exports.DrizzleMigrate = void 0;
const JSII_RTTI_SYMBOL_1 = Symbol.for("jsii.rtti");
const assert_1 = require("assert");
const fs_1 = require("fs");
const path = require("path");
const aws_cdk_lib_1 = require("aws-cdk-lib");
const dsql = require("aws-cdk-lib/aws-dsql");
const iam = require("aws-cdk-lib/aws-iam");
const lambda = require("aws-cdk-lib/aws-lambda");
const aws_lambda_nodejs_1 = require("aws-cdk-lib/aws-lambda-nodejs");
const logs = require("aws-cdk-lib/aws-logs");
const cr = require("aws-cdk-lib/custom-resources");
const constructs_1 = require("constructs");
/**
* Helper function to determine if a cluster is a DSQL cluster
*/
function isDsqlCluster(cluster) {
return cluster instanceof dsql.CfnCluster;
}
/**
* A custom resource that runs Drizzle migrations
*/
class DrizzleMigrate extends constructs_1.Construct {
constructor(scope, id, props) {
super(scope, id);
// Validate configuration
const isDsql = props.cluster && isDsqlCluster(props.cluster);
if (!isDsql && !props.dbSecret) {
throw new Error("Either dbSecret (for traditional RDS) or cluster with DSQL must be provided");
}
if (!isDsql && !props.vpc) {
throw new Error("VPC is required for traditional RDS databases");
}
if (isDsql && props.dbSecret) {
throw new Error("dbSecret should not be provided when using DSQL cluster (uses IAM authentication)");
}
const migrationsDir = path.join(process.cwd(), props.migrationsPath);
(0, assert_1.strict)((0, fs_1.existsSync)(migrationsDir), `Migrations directory ${migrationsDir} does not exist`);
const handlerDir = path.join(__dirname, "handler");
const ts_filename = path.join(handlerDir, "index.ts");
const js_filename = path.join(handlerDir, "index.js");
const entry = (0, fs_1.existsSync)(ts_filename) ? ts_filename : js_filename;
const environment = {
NO_COLOR: "1",
...(props.handlerProps?.environment || {}),
};
// Create explicit log group for the Lambda handler
const logGroup = new logs.LogGroup(this, "MigrateHandlerLogGroup", {
retention: logs.RetentionDays.ONE_WEEK,
// Keep log group, it's annoying when it gets deleted for new
// deploys, and something has gone wrong. You have no way to
// look at the logs in that case.
removalPolicy: aws_cdk_lib_1.RemovalPolicy.RETAIN,
});
const onEventHandler = new aws_lambda_nodejs_1.NodejsFunction(this, "MigrateHandler", {
runtime: lambda.Runtime.NODEJS_20_X,
entry: entry,
logGroup: logGroup,
loggingFormat: lambda.LoggingFormat.JSON,
applicationLogLevelV2: lambda.ApplicationLogLevel.INFO,
timeout: aws_cdk_lib_1.Duration.minutes(5),
vpc: props.vpc,
vpcSubnets: props.vpcSubnets,
...props.handlerProps,
environment,
bundling: {
sourceMap: false,
// Include the migrations directory in the bundle
commandHooks: {
beforeBundling(_, outputDir) {
const commands = [
`cp ${handlerDir}/handler.js ${outputDir}`,
`cp -r ${migrationsDir} ${path.join(outputDir, "migrations")}`,
// Always download RDS certificate for SSL connections (both RDS and DSQL need it)
`mkdir -p ${path.join(outputDir, "certs")}`,
`curl --silent -fL https://truststore.pki.rds.amazonaws.com/global/global-bundle.pem -o ${path.join(outputDir, "certs", "global-bundle.pem")}`,
];
return commands;
},
afterBundling() {
return [];
},
beforeInstall() {
return [];
},
},
...props.handlerProps?.bundling,
},
});
// Handle database connection setup
if (isDsql) {
// For DSQL, grant IAM permissions instead of VPC security groups
const dsqlCluster = props.cluster;
onEventHandler.addToRolePolicy(new iam.PolicyStatement({
effect: iam.Effect.ALLOW,
actions: ["dsql:DbConnectAdmin"],
resources: [dsqlCluster.attrResourceArn],
}));
}
else {
// Traditional RDS setup with security groups
if (props.cluster &&
(!props.handlerProps ||
typeof props.handlerProps.securityGroups === "undefined" ||
props.handlerProps.securityGroups.length === 0)) {
const rdsCluster = props.cluster;
rdsCluster.connections.allowDefaultPortFrom(onEventHandler.connections, "Allow drizzle migrate lambda to connect to db");
}
// Grant the Lambda function permission to read the secret
props.dbSecret.grantRead(onEventHandler);
}
this.handler = onEventHandler;
const provider = new cr.Provider(this, "Provider", {
onEventHandler,
logGroup,
});
// Build custom resource properties based on database type
const customResourceProperties = {
// We're now using a fixed path inside the Lambda bundle
migrationsPath: "migrations",
// Adding a timestamp ensures the resource is updated on each deployment
timestamp: Date.now().toString(),
};
if (isDsql) {
// For DSQL, construct the endpoint from cluster ID and region
// DSQL endpoint format: ${clusterId}.dsql.${region}.on.aws
const dsqlCluster = props.cluster;
const clusterId = dsqlCluster.attrIdentifier;
const region = aws_cdk_lib_1.Stack.of(this).region;
customResourceProperties.endpoint = `${clusterId}.dsql.${region}.on.aws`;
customResourceProperties.port = "5432";
}
else {
customResourceProperties.secretArn = props.dbSecret.secretArn;
}
this.resource = new aws_cdk_lib_1.CustomResource(this, "CustomResource", {
serviceToken: provider.serviceToken,
properties: customResourceProperties,
});
const resourceCfn = this.resource.node.defaultChild;
resourceCfn.addPropertyOverride("ServiceTimeout", 900);
// Add dependency to ensure database is created before migrations run
if (props.cluster) {
this.resource.node.addDependency(props.cluster);
}
}
}
exports.DrizzleMigrate = DrizzleMigrate;
_a = JSII_RTTI_SYMBOL_1;
DrizzleMigrate[_a] = { fqn: "cdk-drizzle-migrate.DrizzleMigrate", version: "2.0.4" };
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{ strict as assert } from \"assert\"\nimport { existsSync } from \"fs\"\nimport * as path from \"path\"\nimport { CfnResource, CustomResource, Duration, Stack, RemovalPolicy } from \"aws-cdk-lib\"\nimport * as dsql from \"aws-cdk-lib/aws-dsql\"\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 { NodejsFunction, NodejsFunctionProps } from \"aws-cdk-lib/aws-lambda-nodejs\"\nimport * as logs from \"aws-cdk-lib/aws-logs\"\nimport * as rds from \"aws-cdk-lib/aws-rds\"\nimport * as secretsmanager from \"aws-cdk-lib/aws-secretsmanager\"\nimport * as cr from \"aws-cdk-lib/custom-resources\"\nimport { Construct } from \"constructs\"\n\n/**\n * Helper function to determine if a cluster is a DSQL cluster\n */\nfunction isDsqlCluster(\n  cluster: rds.IDatabaseCluster | rds.IDatabaseInstance | dsql.CfnCluster\n): cluster is dsql.CfnCluster {\n  return cluster instanceof dsql.CfnCluster\n}\n\n/**\n * Properties for DrizzleMigrate\n */\nexport interface DrizzleMigrateProps {\n  /**\n   * The database secret containing connection details\n   * Must contain standard CDK database secret properties: username,\n   * password, host, port, engine, etc.\n   * Not required when relying on IAM authentication (such as DSQL).\n   * @default - undefined for DSQL clusters using IAM authentication\n   */\n  readonly dbSecret?: secretsmanager.ISecret\n\n  /**\n   * The path to the migrations directory\n   * This directory will be bundled with the Lambda function\n   */\n  readonly migrationsPath: string\n\n  /**\n   * Optional properties to customize the Lambda function\n   * Excludes runtime, entry, and handler which are managed by the construct\n   * @default - Default Lambda configuration is used\n   */\n  readonly handlerProps?: NodejsFunctionProps\n\n  /**\n   * The VPC where the Lambda function will be deployed\n   * Required when your database is only accessible in a VPC.\n   * Not required for DSQL as it uses public endpoints with IAM authentication\n   * @default - use VPC of your RDS/Aurora cluster\n   */\n  readonly vpc?: ec2.IVpc\n\n  /**\n   * Optional subnet selection to deploy the Lambda function\n   * Only used when vpc is specified\n   * @default - PRIVATE_WITH_EGRESS subnets\n   */\n  readonly vpcSubnets?: ec2.SubnetSelection\n\n  /**\n   * Optional database cluster or instance\n   * Supports both traditional RDS/Aurora clusters and DSQL clusters\n   * - For RDS/Aurora: security groups will be configured to allow access\n   * - For DSQL: IAM authentication will be used instead of secrets\n   * @default - No database connection is configured\n   */\n  readonly cluster?: rds.IDatabaseCluster | rds.IDatabaseInstance | dsql.CfnCluster\n}\n\n/**\n * A custom resource that runs Drizzle migrations\n */\nexport class DrizzleMigrate extends Construct {\n  /**\n   * The custom resource that was created\n   */\n  public readonly resource: CustomResource\n\n  /**\n   * The Lambda function that executes the migrations\n   */\n  public readonly handler: NodejsFunction\n\n  constructor(scope: Construct, id: string, props: DrizzleMigrateProps) {\n    super(scope, id)\n\n    // Validate configuration\n    const isDsql = props.cluster && isDsqlCluster(props.cluster)\n    if (!isDsql && !props.dbSecret) {\n      throw new Error(\n        \"Either dbSecret (for traditional RDS) or cluster with DSQL must be provided\"\n      )\n    }\n    if (!isDsql && !props.vpc) {\n      throw new Error(\"VPC is required for traditional RDS databases\")\n    }\n    if (isDsql && props.dbSecret) {\n      throw new Error(\n        \"dbSecret should not be provided when using DSQL cluster (uses IAM authentication)\"\n      )\n    }\n\n    const migrationsDir = path.join(process.cwd(), props.migrationsPath)\n    assert(\n      existsSync(migrationsDir),\n      `Migrations directory ${migrationsDir} does not exist`\n    )\n    const handlerDir = path.join(__dirname, \"handler\")\n\n    const ts_filename = path.join(handlerDir, \"index.ts\")\n    const js_filename = path.join(handlerDir, \"index.js\")\n    const entry = existsSync(ts_filename) ? ts_filename : js_filename\n\n    const environment: Record<string, string> = {\n      NO_COLOR: \"1\",\n      ...(props.handlerProps?.environment || {}),\n    }\n\n    // Create explicit log group for the Lambda handler\n    const logGroup = new logs.LogGroup(this, \"MigrateHandlerLogGroup\", {\n      retention: logs.RetentionDays.ONE_WEEK,\n      // Keep log group, it's annoying when it gets deleted for new\n      // deploys, and something has gone wrong. You have no way to\n      // look at the logs in that case.\n      removalPolicy: RemovalPolicy.RETAIN,\n    })\n\n    const onEventHandler = new NodejsFunction(this, \"MigrateHandler\", {\n      runtime: lambda.Runtime.NODEJS_20_X,\n      entry: entry,\n      logGroup: logGroup,\n      loggingFormat: lambda.LoggingFormat.JSON,\n      applicationLogLevelV2: lambda.ApplicationLogLevel.INFO,\n      timeout: Duration.minutes(5),\n      vpc: props.vpc,\n      vpcSubnets: props.vpcSubnets,\n      ...props.handlerProps,\n      environment,\n      bundling: {\n        sourceMap: false,\n        // Include the migrations directory in the bundle\n        commandHooks: {\n          beforeBundling(_: string, outputDir: string): string[] {\n            const commands = [\n              `cp ${handlerDir}/handler.js ${outputDir}`,\n              `cp -r ${migrationsDir} ${path.join(outputDir, \"migrations\")}`,\n              // Always download RDS certificate for SSL connections (both RDS and DSQL need it)\n              `mkdir -p ${path.join(outputDir, \"certs\")}`,\n              `curl --silent -fL https://truststore.pki.rds.amazonaws.com/global/global-bundle.pem -o ${path.join(outputDir, \"certs\", \"global-bundle.pem\")}`,\n            ]\n\n            return commands\n          },\n          afterBundling(): string[] {\n            return []\n          },\n          beforeInstall(): string[] {\n            return []\n          },\n        },\n        ...props.handlerProps?.bundling,\n      },\n    })\n\n    // Handle database connection setup\n    if (isDsql) {\n      // For DSQL, grant IAM permissions instead of VPC security groups\n      const dsqlCluster = props.cluster as dsql.CfnCluster\n      onEventHandler.addToRolePolicy(\n        new iam.PolicyStatement({\n          effect: iam.Effect.ALLOW,\n          actions: [\"dsql:DbConnectAdmin\"],\n          resources: [dsqlCluster.attrResourceArn],\n        })\n      )\n    } else {\n      // Traditional RDS setup with security groups\n      if (\n        props.cluster &&\n        (!props.handlerProps ||\n          typeof props.handlerProps.securityGroups === \"undefined\" ||\n          props.handlerProps.securityGroups.length === 0)\n      ) {\n        const rdsCluster = props.cluster as rds.IDatabaseCluster | rds.IDatabaseInstance\n        rdsCluster.connections.allowDefaultPortFrom(\n          onEventHandler.connections,\n          \"Allow drizzle migrate lambda to connect to db\"\n        )\n      }\n\n      // Grant the Lambda function permission to read the secret\n      props.dbSecret!.grantRead(onEventHandler)\n    }\n\n    this.handler = onEventHandler\n\n    const provider = new cr.Provider(this, \"Provider\", {\n      onEventHandler,\n      logGroup,\n    })\n\n    // Build custom resource properties based on database type\n    const customResourceProperties: Record<string, string> = {\n      // We're now using a fixed path inside the Lambda bundle\n      migrationsPath: \"migrations\",\n      // Adding a timestamp ensures the resource is updated on each deployment\n      timestamp: Date.now().toString(),\n    }\n\n    if (isDsql) {\n      // For DSQL, construct the endpoint from cluster ID and region\n      // DSQL endpoint format: ${clusterId}.dsql.${region}.on.aws\n      const dsqlCluster = props.cluster as dsql.CfnCluster\n      const clusterId = dsqlCluster.attrIdentifier\n      const region = Stack.of(this).region\n      customResourceProperties.endpoint = `${clusterId}.dsql.${region}.on.aws`\n      customResourceProperties.port = \"5432\"\n    } else {\n      customResourceProperties.secretArn = props.dbSecret!.secretArn\n    }\n\n    this.resource = new CustomResource(this, \"CustomResource\", {\n      serviceToken: provider.serviceToken,\n      properties: customResourceProperties,\n    })\n\n    const resourceCfn = this.resource.node.defaultChild as CfnResource\n    resourceCfn.addPropertyOverride(\"ServiceTimeout\", 900)\n\n    // Add dependency to ensure database is created before migrations run\n    if (props.cluster) {\n      this.resource.node.addDependency(props.cluster)\n    }\n  }\n}\n"]}