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Merge pull request #1 from EPAM-JS-Competency-center/task-2
added s3 bucket and cloudfront distribution
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.serverless_plugins/serverless-single-page-app-plugin.js
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'use strict'; | ||
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const spawnSync = require('child_process').spawnSync; | ||
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class ServerlessPlugin { | ||
constructor(serverless, options) { | ||
this.serverless = serverless; | ||
this.options = options; | ||
this.commands = { | ||
syncToS3: { | ||
usage: 'Deploys the `app` directory to your bucket', | ||
lifecycleEvents: [ | ||
'sync', | ||
], | ||
}, | ||
domainInfo: { | ||
usage: 'Fetches and prints out the deployed CloudFront domain names', | ||
lifecycleEvents: [ | ||
'domainInfo', | ||
], | ||
}, | ||
invalidateCloudFrontCache: { | ||
usage: 'Invalidates CloudFront cache', | ||
lifecycleEvents: [ | ||
'invalidateCache', | ||
], | ||
}, | ||
}; | ||
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this.hooks = { | ||
'syncToS3:sync': this.syncDirectory.bind(this), | ||
'domainInfo:domainInfo': this.domainInfo.bind(this), | ||
'invalidateCloudFrontCache:invalidateCache': this.invalidateCache.bind( | ||
this, | ||
), | ||
}; | ||
} | ||
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runAwsCommand(args) { | ||
let command = 'aws'; | ||
if (this.serverless.variables.service.provider.region) { | ||
command = `${command} --region ${this.serverless.variables.service.provider.region}`; | ||
} | ||
if (this.serverless.variables.service.provider.profile) { | ||
command = `${command} --profile ${this.serverless.variables.service.provider.profile}`; | ||
} | ||
const result = spawnSync(command, args, { shell: true }); | ||
const stdout = result.stdout.toString(); | ||
const sterr = result.stderr.toString(); | ||
if (stdout) { | ||
this.serverless.cli.log(stdout); | ||
} | ||
if (sterr) { | ||
this.serverless.cli.log(sterr); | ||
} | ||
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return { stdout, sterr }; | ||
} | ||
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// syncs the `app` directory to the provided bucket | ||
syncDirectory() { | ||
const s3Bucket = this.serverless.variables.service.custom.s3Bucket; | ||
const buildFolder = this.serverless.variables.service.custom.client.distributionFolder; | ||
const args = [ | ||
's3', | ||
'sync', | ||
`${buildFolder}/`, | ||
`s3://${s3Bucket}/`, | ||
'--delete', | ||
]; | ||
const { sterr } = this.runAwsCommand(args); | ||
if (!sterr) { | ||
this.serverless.cli.log('Successfully synced to the S3 bucket'); | ||
} else { | ||
throw new Error('Failed syncing to the S3 bucket'); | ||
} | ||
} | ||
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// fetches the domain name from the CloudFront outputs and prints it out | ||
async domainInfo() { | ||
const provider = this.serverless.getProvider('aws'); | ||
const stackName = provider.naming.getStackName(this.options.stage); | ||
const result = await provider.request( | ||
'CloudFormation', | ||
'describeStacks', | ||
{ StackName: stackName }, | ||
this.options.stage, | ||
this.options.region, | ||
); | ||
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const outputs = result.Stacks[0].Outputs; | ||
const output = outputs.find( | ||
entry => entry.OutputKey === 'WebAppCloudFrontDistributionOutput', | ||
); | ||
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if (output && output.OutputValue) { | ||
this.serverless.cli.log(`Web App Domain: ${output.OutputValue}`); | ||
return output.OutputValue; | ||
} | ||
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this.serverless.cli.log('Web App Domain: Not Found'); | ||
const error = new Error('Could not extract Web App Domain'); | ||
throw error; | ||
} | ||
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async invalidateCache() { | ||
const provider = this.serverless.getProvider('aws'); | ||
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const domain = await this.domainInfo(); | ||
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const result = await provider.request( | ||
'CloudFront', | ||
'listDistributions', | ||
{}, | ||
this.options.stage, | ||
this.options.region, | ||
); | ||
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const distributions = result.DistributionList.Items; | ||
const distribution = distributions.find( | ||
entry => entry.DomainName === domain, | ||
); | ||
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if (distribution) { | ||
this.serverless.cli.log( | ||
`Invalidating CloudFront distribution with id: ${distribution.Id}`, | ||
); | ||
const args = [ | ||
'cloudfront', | ||
'create-invalidation', | ||
'--distribution-id', | ||
distribution.Id, | ||
'--paths', | ||
'"/*"', | ||
]; | ||
const { sterr } = this.runAwsCommand(args); | ||
if (!sterr) { | ||
this.serverless.cli.log('Successfully invalidated CloudFront cache'); | ||
} else { | ||
throw new Error('Failed invalidating CloudFront cache'); | ||
} | ||
} else { | ||
const message = `Could not find distribution with domain ${domain}`; | ||
const error = new Error(message); | ||
this.serverless.cli.log(message); | ||
throw error; | ||
} | ||
} | ||
} | ||
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module.exports = ServerlessPlugin; |
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service: node-in-aws-web | ||
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frameworkVersion: '2' | ||
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provider: | ||
name: aws | ||
runtime: nodejs12.x | ||
# setup profile for AWS CLI. | ||
# profile: node-aws | ||
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plugins: | ||
- serverless-finch | ||
# 'serverless-single-page-app-plugin' is a custom plugin that located .serverless_plugins folder. | ||
# Existing plugin (https://www.npmjs.com/package/serverless-single-page-app-plugin) doesn't have invalidate cache feature that often used during CI/CD events. | ||
# How to build your own plugins: https://www.serverless.com/framework/docs/providers/aws/guide/plugins#service-local-plugin | ||
- serverless-single-page-app-plugin | ||
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custom: | ||
client: | ||
bucketName: node-in-aws-web-bucket | ||
distributionFolder: build | ||
s3BucketName: ${self:custom.client.bucketName} | ||
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## Serverless-single-page-app-plugin configuration: | ||
s3LocalPath: ${self:custom.client.distributionFolder}/ | ||
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resources: | ||
Resources: | ||
## Specifying the S3 Bucket | ||
WebAppS3Bucket: | ||
Type: AWS::S3::Bucket | ||
Properties: | ||
BucketName: ${self:custom.s3BucketName} | ||
AccessControl: PublicRead | ||
WebsiteConfiguration: | ||
IndexDocument: index.html | ||
ErrorDocument: index.html | ||
# VersioningConfiguration: | ||
# Status: Enabled | ||
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## Specifying the policies to make sure all files inside the Bucket are avaialble to CloudFront | ||
WebAppS3BucketPolicy: | ||
Type: AWS::S3::BucketPolicy | ||
Properties: | ||
Bucket: | ||
Ref: WebAppS3Bucket | ||
PolicyDocument: | ||
Statement: | ||
- Sid: 'AllowCloudFrontAccessIdentity' | ||
Effect: Allow | ||
Action: s3:GetObject | ||
Resource: arn:aws:s3:::${self:custom.s3BucketName}/* | ||
Principal: | ||
AWS: | ||
Fn::Join: | ||
- ' ' | ||
- - 'arn:aws:iam::cloudfront:user/CloudFront Origin Access Identity' | ||
- !Ref OriginAccessIdentity | ||
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OriginAccessIdentity: | ||
Type: AWS::CloudFront::CloudFrontOriginAccessIdentity | ||
Properties: | ||
CloudFrontOriginAccessIdentityConfig: | ||
Comment: Access identity between CloudFront and S3 bucket | ||
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## Specifying the CloudFront Distribution to server your Web Application | ||
WebAppCloudFrontDistribution: | ||
Type: AWS::CloudFront::Distribution | ||
Properties: | ||
DistributionConfig: | ||
Origins: | ||
- DomainName: ${self:custom.s3BucketName}.s3.amazonaws.com | ||
## An identifier for the origin which must be unique within the distribution | ||
Id: myS3Origin | ||
## In case you don't want to restrict the bucket access use CustomOriginConfig and remove S3OriginConfig | ||
S3OriginConfig: | ||
OriginAccessIdentity: !Sub origin-access-identity/cloudfront/${OriginAccessIdentity} | ||
# CustomOriginConfig: | ||
# HTTPPort: 80 | ||
# HTTPSPort: 443 | ||
# OriginProtocolPolicy: https-only | ||
Enabled: true | ||
IPV6Enabled: true | ||
HttpVersion: http2 | ||
## Uncomment the following section in case you are using a custom domain | ||
# Aliases: | ||
# - mysite.example.com | ||
DefaultRootObject: index.html | ||
## Since the Single Page App is taking care of the routing we need to make sure ever path is served with index.html | ||
## The only exception are files that actually exist e.h. app.js, reset.css | ||
CustomErrorResponses: | ||
- ErrorCode: 404 | ||
ResponseCode: 200 | ||
ResponsePagePath: /index.html | ||
DefaultCacheBehavior: | ||
AllowedMethods: [ 'GET', 'HEAD', 'OPTIONS' ] | ||
CachedMethods: [ 'GET', 'HEAD', 'OPTIONS' ] | ||
ForwardedValues: | ||
Headers: | ||
- Access-Control-Request-Headers | ||
- Access-Control-Request-Method | ||
- Origin | ||
- Authorization | ||
## Defining if and how the QueryString and Cookies are forwarded to the origin which in this case is S3 | ||
QueryString: false | ||
Cookies: | ||
Forward: none | ||
## The origin id defined above | ||
TargetOriginId: myS3Origin | ||
## The protocol that users can use to access the files in the origin. To allow HTTP use `allow-all` | ||
ViewerProtocolPolicy: redirect-to-https | ||
Compress: true | ||
DefaultTTL: 0 | ||
## The certificate to use when viewers use HTTPS to request objects. | ||
ViewerCertificate: | ||
CloudFrontDefaultCertificate: 'true' | ||
## Uncomment the following section in case you want to enable logging for CloudFront requests | ||
# Logging: | ||
# IncludeCookies: 'false' | ||
# Bucket: mylogs.s3.amazonaws.com | ||
# Prefix: myprefix | ||
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## In order to print out the hosted domain via `serverless info` we need to define the DomainName output for CloudFormation | ||
Outputs: | ||
WebAppS3BucketOutput: | ||
Value: !Ref WebAppS3Bucket | ||
WebAppCloudFrontDistributionOutput: | ||
Value: !GetAtt WebAppCloudFrontDistribution.DomainName |