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cloud engineer

apache

Standard SSL Policy

Here’s a standard template for SSL Apache found in /etc/apache2/sites-available/default-ssl.conf.

<IfModule mod_ssl.c>
<VirtualHost _default_:443>
   ServerAdmin your-email@your-domain.com
   ServerName www.yourdomain.com
   ServerName yourdomain.com
   DocumentRoot /var/www/your-domain.com
   ErrorLog /var/www/your-domain.com/log/error.log
   CustomLog /var/www/your-domain.com/log/access.log combined
   <Directory /var/www/your-domain.com>
      Options Indexes FollowSymLinks MultiViews
      AllowOverride All
      Require all granted
   </Directory>
   SSLCertificateFile /etc/letsencrypt/live/your-domain.com/fullchain.pem
   SSLCertificateKeyFile /etc/letsencrypt/live/your-domain.com/privkey.pem
   Include /etc/letsencrypt/options-ssl-apache.conf
</VirtualHost>
</IfModule>

Enable SSL.

# Enable SSL Module
a2enmod ssl
systemctl restart apache2.service
# Enable SSL Apache Config
a2ensite default-ssl
systemctl restart apache2.service
# Alternate way to restart.
service apache2 restart

WordPress Permalinks Not Working

Here’s a couple of things you can do to check if WordPress permalinks is not working.

  1. Make sure .htaccess has the right permissions.
  2. Make sure a2enmod Apache module is enabled.
  3. Restart the Apache server.
chmod 664 /var/www/domain.com/.htaccess
a2enmod rewrite
systemctl restart apache2

GCP Web Server

Here’s a quick script to stand up a web server based on Centos image.

gcloud compute instances create [VM-NAME] \
    --zone=[ZONE] \
    --image-family=debian-9 \
    --image-project=debian-cloud \
    --tags=allow-ssh,allow-health-check \
    --subnet=lb-subnet \
    --metadata=startup-script='#! /bin/bash
apt-get update
apt-get install apache2 -y
a2ensite default-ssl
a2enmod ssl
vm_hostname="$(curl -H "Metadata-Flavor:Google" \
http://169.254.169.254/computeMetadata/v1/instance/name)"
echo "Page served from: $vm_hostname" | \
tee /var/www/html/index.html
systemctl restart apache2'

Apache Dockerfile

This Docker image contains Apache (httpd), a web server.

Here’s the Dockerfile.

FROM httpd:2.4
COPY ./public-html/ /usr/local/apache2/htdocs/

Build and run your Docker image.

docker build -t my-app .
docker run -dit --name my-running-app -p 8080:80 my-app

Visit http://localhost:8080 to view your app.

HTTPS in CodeIgniter

If you switched to HTTPS in Apache, make sure to update CodeIgniter’s config file.

vim /var/www/applications/config/config.php

Change the base URL to https.

$config['base_url']	= 'https://yourdomain.com/ci/';