Install Etherpad Lite on AWS EC2 Amazon Linux 2 AMI

Login to AWS EC2 Web Console
Launch a new t2.micro EC2 instance from Amazon Linux 2 AMI
Allocation new Elastic IP
Allocate the Elastic IP to newly create EC2 instance
Using PuTTY SSH Client and PEM key login, SSH into in the new instance
Run the following Linux shell command to update Amazon Linux 2:
```
sudo yum -y update
```
Run following Linux shell command to install node.js:

https://github.com/nodesource/distributions/blob/master/README.md
```
curl -sL https://rpm.nodesource.com/setup_current.x | sudo bash -
sudo yum install -y nodejs git
```

Run the following Linux shell commands to download and install Etherpad Lite:

https://github.com/ether/etherpad-lite#installation

sudo mkdir /usr/local/etherpad
sudo git clone --branch master https://github.com/ether/etherpad-lite.git /usr/local/etherpad/
sudo /usr/local/etherpad/bin/installDeps.sh
sudo groupadd etherpad
sudo useradd etherpad --system -g etherpad --home /var/etherpad
sudo chown -R etherpad:etherpad /usr/local/etherpad

Setup Etherpad as service so that it can be started during boot by running Linux shell command sudo vi /usr/lib/systemd/system/etherpad.service:

https://github.com/ether/etherpad-lite/wiki/How-to-deploy-Etherpad-Lite-as-a-service

etherpad.service

[Unit]
Description=Etherpad-lite, the collaborative editor.
After=syslog.target network.target
 
[Service]
Type=simple
User=etherpad
Group=etherpad
WorkingDirectory=/usr/local/etherpad
Environment=NODE_ENV=production
ExecStart=/usr/bin/node --experimental-worker /usr/local/etherpad/node_modules/ep_etherpad-lite/node/server.js
# use mysql plus a complete settings.json to avoid Service hold-off time over, scheduling restart.
Restart=always
 
[Install]
WantedBy=multi-user.target

Run following Linux shell commands to enable Etherpad service and start it immediately:

sudo chmod ugo+x /usr/lib/systemd/system/etherpad.service
sudo systemctl enable etherpad
sudo systemctl start etherpad

Run following Linux shell command to install Apache httpd and Apache SSL Module:
```
sudo yum -y install httpd mod_ssl
```
Edit httpd.conf file by running sudo vi /etc/httpd/conf/httpd.conf Linux shell command with following contents:

Replace «Server Administrator Email address»
Replace «Website DNS»
httpd.conf
```
#Listen 80
ServerAdmin <<Server Administrator Email address>>
ServerName <<Website DNS>>:80
```
Run the following Linux shell command to enable Apache httpd server to start at boot as well as immediately:
```
sudo systemctl enable httpd
sudo systemctl start httpd
```
Update DNS host record with your Domain Registrar or Domain Management Service
Generate CloudFlare Origin Certificate

Run following Linux shell commands to create certificates:

https://www.digicert.com/kb/csr-ssl-installation/apache-openssl.htm#ssl_certificate_install
https://support.cloudflare.com/hc/en-us/articles/115000479507-Managing-Cloudflare-Origin-CA-certificates

Replace «domain name» with your website's domain name
Replace «Paste Origin Certificate» with Origin Certificate generated in your CloudFlare account
Replace «Paste Private Key» with Private Key for Origin Certificate generated in your CloudFlare account

sudo mkdir /usr/local/ssl
sudo vi /usr/local/ssl/<<domain name>>.crt
<<Paste Origin Certificate>>
sudo vi /usr/local/ssl/<<domain name>>.crt
<<Paste Private Key>>
sudo vi /usr/local/ssl/cloudflare.crt
<<Paste CloudFlare certificate from below>>

https://support.cloudflare.com/hc/article_attachments/360037885371/origin_ca_rsa_root.pem

cloudflare.crt

Edit ssl.conf file by running sudo vi /etc/httpd/conf.d/ssl.conf Linux shell command with following contents:

Replace «domain name» with your website's domain name

ssl.conf

SSLCertificateFile /usr/local/ssl/<<domain name>>.crt
SSLCertificateKeyFile /usr/local/ssl/<<domain name>>.key
SSLCertificateChainFile /usr/local/ssl/cloudflare.crt
 
ProxyVia On
ProxyRequests Off
ProxyPreserveHost on
 
<Location />
    ProxyPass http://localhost:9001/ retry=0 timeout=30
    ProxyPassReverse http://localhost:9001/
</Location>
<Location /socket.io>
    # This is needed to handle the websocket transport through the proxy, since
    # etherpad does not use a specific sub-folder, such as /ws/ to handle this kind of traffic.
    # Taken from https://github.com/ether/etherpad-lite/issues/2318#issuecomment-63548542
    # Thanks to beaugunderson for the semantics
    RewriteEngine On
    RewriteCond %{QUERY_STRING} transport=websocket    [NC]
    RewriteRule /(.*) ws://localhost:9001/socket.io/$1 [P,L]
    ProxyPass http://localhost:9001/socket.io retry=0 timeout=30
    ProxyPassReverse http://localhost:9001/socket.io
</Location>
 
<Proxy *>
    Options FollowSymLinks MultiViews
    AllowOverride All
    Order allow,deny
    allow from all
</Proxy>

Run following Linux shell command to restart Apache httpd service:
```
sudo systemctl restart httpd
```
Edit Etherpad settings file by running Linux command sudo vi /usr/local/etherpad/settings.json

Run following Linux command restart Etherpad service:

sudo systemctl daemon-reload && sudo systemctl restart etherpad

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Install Etherpad Lite on AWS EC2 Amazon Linux 2 AMI

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