serverless/lib/actions/EndpointDeploy.js

385 lines
12 KiB
JavaScript

'use strict';
/**
* Action: Endpoint Deploy
* - Deploys Endpoints
* - Validates Endpoint paths
* - Loops sequentially through each Region in specified Stage
* - Passes Endpoint paths to Sub-Actions for deployment
* - Handles concurrent processing of Sub-Actions for faster deploys
*
* Event Properties:
* - stage: (String) The stage to deploy to
* - regions: (Array) The region(s) in the stage to deploy to
* - paths: (Array) Array of function paths to deploy. Format: 'users/show', 'users/create'
* - aliasEndpoint: (String) The Lambda Alias the endpoint should point to.
* - all: (Boolean) Indicates whether all Functions in the project should be deployed.
* - endpoints: (Array) Array of endpoint JSONs
* - deployed: (Object) Contains regions and the code functions that have been uploaded to the S3 bucket in that region
*/
module.exports = function(SPlugin, serverlessPath) {
const path = require('path'),
SError = require(path.join(serverlessPath, 'ServerlessError')),
SUtils = require(path.join(serverlessPath, 'utils/index')),
SCli = require(path.join(serverlessPath, 'utils/cli')),
BbPromise = require('bluebird'),
async = require('async'),
fs = require('fs'),
os = require('os');
// Promisify fs module
BbPromise.promisifyAll(fs);
class EndpointDeploy extends SPlugin {
constructor(S, config) {
super(S, config);
}
static getName() {
return 'serverless.core.' + EndpointDeploy.name;
}
registerActions() {
this.S.addAction(this.endpointDeploy.bind(this), {
handler: 'endpointDeploy',
description: 'Deploys REST API endpoints',
context: 'endpoint',
contextAction: 'deploy',
options: [
{
option: 'stage',
shortcut: 's',
description: 'Optional if only one stage is defined in project'
}, {
option: 'region',
shortcut: 'r',
description: 'Optional - Target one region to deploy to'
}, {
option: 'aliasEndpoint', // TODO: Implement
shortcut: 'e',
description: 'Optional - Point Endpoint(s) to a specific Lambda alias'
}, {
option: 'aliasRestApi', // TODO: Implement
shortcut: 'p',
description: 'Optional - Override the API Gateway "functionAlias" Stage Variable'
}, {
option: 'all',
shortcut: 'a',
description: 'Optional - Select all Functions in your project for deployment'
}, {
option: 'description',
shortcut: 'd',
description: 'Optional - Provide custom description string for API Gateway stage deployment description'
}
],
});
return BbPromise.resolve();
}
/**
* Endpoint Deploy
*/
endpointDeploy(event) {
let _this = this,
evt = {};
// If CLI, parse options
if (_this.S.cli) {
// Options
evt = JSON.parse(JSON.stringify(this.S.cli.options)); // Important: Clone objects, don't refer to them
// Option - Non-interactive
if (_this.S.cli.options.nonInteractive) _this.S._interactive = false
// Endpoint paths - They should be all params
evt.paths = _this.S.cli.params;
}
// If NO-CLI, add options
if (event) evt = event;
// Add defaults
evt.stage = evt.stage ? evt.stage : null;
evt.regions = evt.region ? [evt.region] : [];
evt.paths = evt.paths ? evt.paths : [];
evt.all = evt.all ? true : false;
evt.aliasEndpoint = evt.aliasEndpoint ? evt.aliasEndpoint : null;
evt.aliasRestApi = evt.aliasRestApi ? evt.aliasRestApi : null;
evt.description = evt.description ? evt.description : null;
evt.endpoints = [];
evt.deployed = {};
// Flow
return _this._validateAndPrepare(evt)
.bind(_this)
.then(_this._prepareEndpoints)
.then(function(evt) {
return _this.cliPromptSelectStage('Endpoint Deployer - Choose a stage: ', evt.stage, false)
.then(stage => {
evt.stage = stage;
return evt;
})
})
.then(_this._prepareRegions)
.then(_this._processDeployment)
.then(function(evt) {
return evt;
});
}
/**
* Validate And Prepare
* - If CLI, maps CLI input to event object
*/
_validateAndPrepare(evt) {
let _this = this;
// If NO-CLI, validate paths
if (!_this.S.cli) {
// Validate Paths
if (!evt.paths.length && !evt.all) {
throw new SError(`One or multiple paths are required`);
}
// Validate Stage
if (!evt.stage) {
throw new SError(`Stage is required`);
}
}
return BbPromise.resolve(evt);
}
/**
* Prepare Endpoints
*/
_prepareEndpoints(evt) {
let _this = this;
// If NO-CLI - Get Endpoints from submitted paths
if (!_this.S.cli) {
return SUtils.getEndpoints(
_this.S._projectRootPath,
evt.all ? null : evt.paths)
.then(function (endpoints) {
if (!endpoints.length) throw new SError(`No endpoints found`);
evt.endpoints = endpoints;
// Delete Paths
if (evt.paths) delete evt.paths;
return evt;
});
}
// IF CLI + ALL/paths, get endpoints
if (_this.S.cli && (evt.all || evt.paths.length)) {
return SUtils.getEndpoints(
_this.S._projectRootPath,
evt.all ? null : evt.paths)
.then(function (endpoints) {
if (!endpoints.length) throw new SError(`No endpoints found`);
evt.endpoints = endpoints;
// Delete Paths
if (evt.paths) delete evt.paths;
return evt;
});
}
// IF CLI + no ALL + no paths - prompt user to select endpoints
if (_this.S.cli && !evt.all && !evt.paths.length) {
return _this.cliPromptSelectEndpoints(
process.cwd(),
'Select the endpoints you wish to deploy:',
true,
true)
.then(function (selected) {
evt.endpoints = selected;
return evt;
});
}
}
/**
* Prepare Regions
*/
_prepareRegions(evt) {
// If no region specified, deploy to all regions in stage
if (!evt.regions.length) {
evt.regions = Object.keys(this.S._meta.private.stages[evt.stage].regions);
}
// Delete region for neatness
if (evt.region) delete evt.region;
return evt;
}
/**
* Process Deployment
*/
_processDeployment(evt) {
let _this = this;
// Status
SCli.log('Deploying endpoints in "' + evt.stage + '" to the following regions: ' + evt.regions);
_this._spinner = SCli.spinner();
_this._spinner.start();
return BbPromise.try(function() {
return evt.regions;
})
.bind(_this)
.each(function(region) {
// Add Deployed Region
evt.deployed[region] = [];
// Deploy Endpoints in each region
return _this._deployEndpointsByRegion(evt, region)
})
.then(function() {
// Status
_this._spinner.stop(true);
SCli.log('Successfully deployed endpoints in "' + evt.stage + '" to the following regions:');
// Display Methods & URLS
for (let i = 0; i < Object.keys(evt.deployed).length; i++) {
let region = evt.deployed[Object.keys(evt.deployed)[i]];
SCli.log(Object.keys(evt.deployed)[i] + ' ------------------------');
for (let j = 0; j < region.length; j++) {
SCli.log(' ' + region[j].method + ' - ' + region[j].url);
}
}
if( evt.failed ){
SCli.log('FAILED to deploy endpoints in "' + evt.stage + '" to the following regions:');
// Display Methods & URLS
for (let i = 0; i < Object.keys(evt.failed).length; i++) {
let region = evt.failed[Object.keys(evt.failed)[i]];
SCli.log(Object.keys(evt.failed)[i] + ' ------------------------');
for (let j = 0; j < region.length; j++) {
SCli.log(' ' + region[j].endpoint.method + ' - ' + region[j].endpoint.path + ': ' + region[j].message );
SUtils.sDebug(region[j].stack);
}
}
}
return evt;
});
}
/**
* Deploy Endpoints By Region
* - Finds or creates a API Gateway in the region
* - Deploys all function endpoints queued in a specific region
*/
_deployEndpointsByRegion(evt, region) {
let _this = this,
regionConfig = SUtils.getRegionConfig(
_this.S._project,
evt.stage,
region);
// Load AWS Service Instance for APIGateway
let awsConfig = {
region: region,
accessKeyId: _this.S._awsAdminKeyId,
secretAccessKey: _this.S._awsAdminSecretKey,
};
let ApiGateway = require('../utils/aws/ApiGateway')(awsConfig);
// Get or Create REST API for Region
return ApiGateway.sFindOrCreateRestApi(
_this.S,
evt.stage,
region)
.then(function(restApi) {
return new BbPromise(function(resolve, reject) {
// A function can have multiple endpoints. Process all endpoints for this Function
async.eachSeries(evt.endpoints, function(endpoint, eCb) {
// Create new event object
let evtClone = {
stage: evt.stage,
region: regionConfig,
endpoint: endpoint,
aliasEndpoint: evt.aliasEndpoint,
aliasRestApi: evt.aliasRestApi,
};
return _this.S.actions.endpointBuildApiGateway(evtClone)
.then(function (evtProcessed) {
// Add provisioned endpoint urls
evt.deployed[region].push({
function: evtProcessed.endpoint.function.name,
method: evtProcessed.endpoint.method,
url: evtProcessed.endpoint.url
});
return eCb();
})
.catch(function(e) {
// Stash Failed Endpoint
if (!evt.failed) evt.failed = {};
if (!evt.failed[region]) evt.failed[region] = [];
evt.failed[region].push({
message: e.message,
stack: e.stack,
endpoint: endpoint
});
return eCb();
});
}, function() {
return resolve(evt);
});
})
.then(function(evt) {
// Deploy API Gateway Deployment in region
let newEvent = {
stage: evt.stage,
region: regionConfig,
description: evt.description
};
return _this.S.actions.endpointDeployApiGateway(newEvent);
});
});
}
}
return( EndpointDeploy );
};