AWS Serverless WordPress

Introduction

Please read the blog post for introduction and explanation. Dev.to: Best Practices for Running WordPress on AWS using CDK

WordPress Plugin Used

W3 Total Cache
WP Offload Media Lite
ElasticPress
Multiple Domain
HumanMade - AWS-XRay (Working on making it work...)

Architecture Diagram

Deployment - (To be update)

Before getting started

Please make sure you have/are

Using bash
Node.js installed
NPM and Yarn installed
Installed and running Docker
Installed and configured AWS CLI
Installed the latest version of AWS CDK CLI

Please be notice, this stack only can deploy into us-east-1 0. You should have a public hosted zone in Route 53

Initialize the CDK project, run make init
Deploy the CDK Toolkit stack on to the target region, run cdk bootstrap aws://AWS_ACCOUNT_ID/AWS_REGION --profile AWS_PROFILE_NAME
Copy the config.sample.toml and rename to config.toml
Run make easy-rsa-init gen-cert import-cert to generate the certificate for the Client VPN

Modify the configuration in config.toml

[environment]
account = "YOUR_AWS_ACCOUNT_ID" # Your AWS account ID

[admin]
allowIpAddresses = ["0.0.0.0/0"] #Your home/office public IPv4 address, if using a specific IP add /32 like 24.222.174.192/32

#Both certificate ARN should create and get from the previous steps
serverCertificateArn = "arn:aws:acm:us-east-1:YOUR_AWS_ACCOUNT_ID:certificate/xxxxxxxxxxxxxxxxxxxxxxxx"
clientCertificateArn = "arn:aws:acm:us-east-1:YOUR_AWS_ACCOUNT_ID:certificate/yyyyyyyyyyyyyyyyyyyyyyyy"

[database]
username = "wordpress" #Database username
defaultDatabaseName = "wordpress" #Default database name

[domain]
domainName = "example.com" #Your root domain name, useually is the domain name of the created public hosted zone in Route 53
hostname = "blog.example.com" #Your desire hostname for the WordPress
alternativeHostname = ["*.blog.example.com"]

[contact]
email = ["[email protected]"] #Email address for notify any in-compliance event in AWS Config

Run make deploy profile=YOUR_AWS_PROFILE_NAME

After the CloudFormation stack deployed, open the Session Manager in System Manager, and open a session to the created bastion host. Then run the following command. (The version of WordPress plugin may NOT be latest)

sudo su -
cd /mnt/efs/wp-content/plugins &&\
curl -O https://downloads.wordpress.org/plugin/w3-total-cache.0.15.1.zip &&\
curl -O https://downloads.wordpress.org/plugin/amazon-s3-and-cloudfront.2.4.4.zip &&\
curl -O https://downloads.wordpress.org/plugin/elasticpress.zip &&\
curl -O https://downloads.wordpress.org/plugin/multiple-domain.zip &&\
curl https://codeload.github.com/humanmade/aws-xray/zip/1.2.12 -o humanmade-aws-xray-1.2.12.zip &&\
unzip '*.zip' &&\
rm -rf *.zip

After the installation, go to the webpage and setup the database connection and plugin configuration. For the hostname of Memcached or MySQL, please check the output in CloudFormation stack.
For Mutiple Domain plugin, please enter blog.example.com and admin.blog.example.com these 2 hostname.