mirror of
https://github.com/serverless/serverless.git
synced 2026-01-18 14:58:43 +00:00
349 lines
10 KiB
JavaScript
349 lines
10 KiB
JavaScript
'use strict';
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/**
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* Action: Code Deploy: Lambda
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* - Uploads a single Lambda's code to their Serverless project bucket
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* - Don't attach "options" to context, it will be overwritten in concurrent operations
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* - WARNING: This Action runs concurrently.
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*/
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module.exports = function(SPlugin, serverlessPath) {
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const path = require('path'),
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SError = require(path.join(serverlessPath, 'ServerlessError')),
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SUtils = require(path.join(serverlessPath, 'utils/index')),
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BbPromise = require('bluebird'),
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Zip = require('node-zip'),
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fs = require('fs'),
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os = require('os');
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// Promisify fs module
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BbPromise.promisifyAll(fs);
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class CodeDeployLambda extends SPlugin {
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constructor(S, config) {
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super(S, config);
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}
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static getName() {
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return 'serverless.core.' + CodeDeployLambda.name;
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}
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registerActions() {
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this.S.addAction(this.codeDeployLambda.bind(this), {
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handler: 'codeDeployLambda',
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description: 'Uploads a Lambda\'s code to S3'
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});
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return BbPromise.resolve();
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}
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/**
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* Deploy Lambda code package
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*/
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codeDeployLambda(evt) {
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let deployer = new Deployer(this.S);
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return deployer.deploy(evt);
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}
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}
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/**
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* Deployer Class
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* - Necessary for this action to run concurrently
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*/
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class Deployer {
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constructor(S) {
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this.S = S;
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}
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deploy(evt) {
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let _this = this;
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_this.evt = evt;
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// Flow
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return _this._validateAndPrepare()
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.bind(_this)
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.then(_this._compress)
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.then(function() {
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return [_this._upload(), _this._provision()];
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})
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.map(function(func) {
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return func;
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}, { concurrency: 3 })
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.then(_this._alias)
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.then(function() {
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/**
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* Return EVT
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*/
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_this.evt.data.functioName = _this.functionName;
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_this.evt.data.pathCompressed = _this.pathCompressed;
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_this.evt.data.s3Bucket = _this.s3Bucket;
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_this.evt.data.s3Key = _this.s3Key;
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_this.evt.data.lambdaVersion = _this.lambdaVersion;
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_this.evt.data.lambdaAlias = _this.lambdaAlias;
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_this.evt.data.lambdaAliasArn = _this.lambdaAliasArn;
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return _this.evt;
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});
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}
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/**
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* Validate And Prepare
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*/
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_validateAndPrepare() {
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let _this = this;
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// TODO: Validate Options
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// Load AWS Service Instances
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let awsConfig = {
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region: _this.evt.options.region,
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accessKeyId: _this.S.config.awsAdminKeyId,
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secretAccessKey: _this.S.config.awsAdminSecretKey
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};
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_this.S3 = require('../utils/aws/S3')(awsConfig);
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_this.Lambda = require('../utils/aws/Lambda')(awsConfig);
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_this.AwsMisc = require('../utils/aws/Misc');
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// Instantiate Classes
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_this.meta = _this.S.state.getMeta();
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_this.project = _this.S.state.getProject();
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_this.function = _this.S.state.getFunctions({ paths: [_this.evt.options.path] })[0];
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// Set default function name
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_this.functionName = _this.function.getDeployedName({
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stage: _this.evt.options.stage,
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region: _this.evt.options.region
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});
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return BbPromise.resolve();
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}
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/**
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* Compress
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*/
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_compress() {
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let zip = new Zip();
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this.evt.options.pathsPackaged.forEach(nc => {
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zip.file(nc.name, fs.readFileSync(nc.path));
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});
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this.zipBuffer = zip.generate({
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type: 'nodebuffer',
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compression: 'DEFLATE'
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});
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if (this.zipBuffer.length > 52428800) {
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BbPromise.reject(new SError(
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'Zip file is > the 50MB Lambda queued limit (' + this.zipBuffer.length + ' bytes)',
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SError.errorCodes.ZIP_TOO_BIG)
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);
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}
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// Set path of compressed package
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this.pathCompressed = path.join(this.evt.options.pathDist, 'package.zip');
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// Create compressed package
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fs.writeFileSync(this.pathCompressed, this.zipBuffer);
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SUtils.sDebug(`"${this.evt.options.stage} - ${this.evt.options.region} - ${this.functionName}": Compressed file created - ${this.pathCompressed}`);
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return BbPromise.resolve();
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}
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/**
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* Upload
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* - Upload zip file to S3
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*/
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_upload() {
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let _this = this;
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SUtils.sDebug(`"${_this.evt.options.stage} - ${_this.evt.options.region} - ${_this.functionName}": Uploading to project bucket...`);
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return _this.S3.sPutLambdaZip(
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_this.meta.variables.projectBucket,
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_this.project.name,
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_this.evt.options.stage,
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_this.functionName,
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fs.createReadStream(_this.pathCompressed))
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.then(function (s3Key) {
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// Store S3 Data
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_this.s3Bucket = _this.meta.variables.projectBucket;
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_this.s3Key = s3Key;
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});
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}
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/**
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* Provision
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* - Deploy Lambda
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*/
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_provision() {
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let _this = this;
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var params = {
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FunctionName: _this.functionName,
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Qualifier: '$LATEST'
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};
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return _this.Lambda.getFunctionPromised(params)
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.catch(function (e) {
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_this.lambda = null;
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})
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.then(function (data) {
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_this.lambda = data;
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})
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.then(function () {
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// Create or Update Lambda
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if (!_this.lambda) {
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SUtils.sDebug(`"${_this.evt.options.stage} - ${_this.evt.options.region} - ${_this.function.functionName}": Creating Lambda function...`);
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// Create Lambda
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let params = {
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Code: {
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ZipFile: _this.zipBuffer
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},
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FunctionName: _this.functionName, /* required */
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Handler: _this.function.handler, /* required */
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Role: _this.meta.stages[_this.evt.options.stage].regions[_this.evt.options.region].variables.iamRoleArnLambda, /* required */
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Runtime: _this.function.getRuntime(), /* required */
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Description: 'Serverless Lambda function for project: ' + _this.project.name,
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MemorySize: _this.function.memorySize,
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Publish: true, // Required by Serverless Framework & recommended best practice by AWS
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Timeout: _this.function.timeout
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};
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return _this.Lambda.createFunctionPromised(params)
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.then(function (data) {
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// Save Version & Lambda
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_this.lambdaVersion = data.Version;
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_this.lambda = data;
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})
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} else {
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SUtils.sDebug(`"${_this.evt.options.stage} - ${_this.evt.options.region} - ${_this.functionName}": Updating Lambda configuration...`);
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let params = {
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FunctionName: _this.lambda.Configuration.FunctionName, /* required */
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Description: 'Serverless Lambda function for project: ' + _this.project.name,
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Handler: _this.function.handler,
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MemorySize: _this.function.memorySize,
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Role: _this.meta.stages[_this.evt.options.stage].regions[_this.evt.options.region].variables.iamRoleArnLambda,
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Timeout: _this.function.timeout
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};
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return _this.Lambda.updateFunctionConfigurationPromised(params)
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.then(function () {
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SUtils.sDebug(`"${_this.evt.options.stage} - ${_this.evt.options.region} - ${_this.functionName}": Updating Lambda function...`);
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// Update Lambda Code
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let params = {
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FunctionName: _this.lambda.Configuration.FunctionName, /* required */
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Publish: true, // Required by Serverless Framework & recommended by AWS
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ZipFile: _this.zipBuffer
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};
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return _this.Lambda.updateFunctionCodePromised(params)
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.then(function (data) {
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// Save Version & Lambda
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_this.lambdaVersion = data.Version;
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_this.lambda = data;
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});
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});
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}
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})
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}
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/**
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* Alias Lambda w/ Stage
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*/
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_alias() {
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let _this = this;
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let aliasedLambda = false;
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_this.lambdaAlias = _this.evt.options.stage.toLowerCase();
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var params = {
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FunctionName: _this.lambda.FunctionName, /* required */
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Name: _this.lambdaAlias /* required */
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};
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return _this.Lambda.getAliasPromised(params)
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.then(function() {
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aliasedLambda = true;
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}, function(e) {
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aliasedLambda = false;
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})
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.then(function() {
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if (aliasedLambda) {
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// Update Existing Alias
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SUtils.sDebug(`"${_this.evt.options.stage} - ${_this.evt.options.region} - ${_this.functionName}": Updating Lambda Alias for version - ${_this.lambdaVersion}`);
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let params = {
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FunctionName: _this.lambda.FunctionName, /* required */
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FunctionVersion: _this.lambdaVersion, /* required */
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Name: _this.lambdaAlias, /* required */
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Description: 'Project: '
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+ _this.project.name
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+ ' Stage: '
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+ _this.evt.options.stage
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};
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return _this.Lambda.updateAliasPromised(params);
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} else {
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// Create New Alias
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SUtils.sDebug(`"${_this.evt.options.stage} - ${_this.evt.options.region} - ${_this.functionName}": Creating New Lambda Alias for version - ${_this.lambdaVersion}`);
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let params = {
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FunctionName: _this.lambda.FunctionName, /* required */
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FunctionVersion: _this.lambdaVersion, /* required */
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Name: _this.lambdaAlias, /* required */
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Description: 'Project: '
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+ _this.project.name
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+ ' Stage: '
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+ _this.evt.options.stage
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};
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return _this.Lambda.createAliasPromised(params);
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}
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})
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.then(function(data) {
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// Save Alias
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_this.lambdaAliasArn = data.AliasArn;
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});
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}
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}
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return( CodeDeployLambda );
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};
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