@pulumi/aws/cloudwatch/logGroupMixins.js

A Pulumi package for creating and managing Amazon Web Services (AWS) cloud resources.

"use strict";
// Copyright 2016-2018, Pulumi Corporation.
//
// Licensed 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.
Object.defineProperty(exports, "__esModule", { value: true });
exports.LogGroupEventSubscription = void 0;
const pulumi = require("@pulumi/pulumi");
const config = require("../config");
const lambda = require("../lambda");
const logGroup = require("./logGroup");
const logSubscriptionFilter = require("./logSubscriptionFilter");
const utils = require("../utils");
class LogGroupEventSubscription extends lambda.EventSubscription {
    constructor(name, logGroup, handler, args = {}, opts = {}) {
        // We previously did not parent the subscription to the logGroup. We now do. Provide an alias
        // so this doesn't cause resources to be destroyed/recreated for existing stacks.
        super("aws:cloudwatch:LogGroupEventSubscription", name, {
            parent: logGroup,
            ...utils.withAlias(opts, { parent: opts.parent }),
        });
        const parentOpts = { parent: this };
        this.func = lambda.createFunctionFromEventHandler(name, handler, parentOpts);
        const provider = this.getProvider("aws::");
        let region = provider ? provider.region : undefined;
        region = region || config.region;
        this.permission = new lambda.Permission(name, {
            action: "lambda:invokeFunction",
            function: this.func.name,
            principal: pulumi.interpolate `logs.${region}.amazonaws.com`,
            sourceArn: pulumi.interpolate `${logGroup.arn}:*`,
        }, parentOpts);
        this.logSubscriptionFilter = new logSubscriptionFilter.LogSubscriptionFilter(name, {
            destinationArn: this.func.arn,
            filterPattern: args.filterPattern || "",
            logGroup: logGroup.name,
        }, parentOpts);
        this.logGroup = logGroup;
        this.registerOutputs();
    }
}
exports.LogGroupEventSubscription = LogGroupEventSubscription;
logGroup.LogGroup.prototype.onEvent = function (name, handler, args, opts) {
    return new LogGroupEventSubscription(name, this, handler, args, opts);
};
logGroup.LogGroup.prototype.onDecodedEvent = function (name, handler, args, opts) {
    return this.onEvent(name, async (event, context, callback) => {
        const decoded = await decodeLogGroupEvent(event);
        await handler(decoded, context, callback);
    }, args, opts);
};
async function decodeLogGroupEvent(event) {
    const zlib = await Promise.resolve().then(() => require("zlib"));
    const payload = Buffer.from(event.awslogs.data, "base64");
    return new Promise((resolve, reject) => {
        zlib.gunzip(payload, function (err, result) {
            if (err) {
                reject(err);
            }
            else {
                resolve(JSON.parse(result.toString("ascii")));
            }
        });
    });
}
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