How to Setup Let's Encrypt SSL with NGINX on Ubuntu 24.04 server

Samuel Oyetola — Thu, 16 May 2024 13:46:04 +0000

Install NGINX: If you haven't already installed NGINX on your Ubuntu 24.04 you can do so using the package manager

$sudo apt update
$sudo apt install nginx

Copy your default configuration file to your domain configuration file created (change myapp.com to your domain name)

$cp /etc/nginx/sites-available/default /etc/nginx/sites-available/myapp.com

Setup ssl for your domain by editing the domain configuration file, look for server_name _; and add your domain name in front of server_name _;

$nano /etc/nginx/sites-available/myapp.com
server_name myapp.com www.myapp.com; and save the configuration file

Unlink your default configuration file so that you can enable your domain configuration file

$unlink /etc/nginx/sites-enabled/default

Link your domain ( This automatically enable your domain configuration file)

$ln -s /etc/nginx/sites-available/myapp.com /etc/nginx/sites-enabled/myapp.com

After enable the domain you can then test

$nginx -t

$service nginx restart

Install Certbot for Let's encrypt SSL

$sudo apt-add-repository -r ppa:certbot/certbot (Press Enter)

$sudo apt install -y certbot python3-certbot-nginx

$certbot --nginx -d myapp.com -d myapp.com

DevOps vs SRE vs Platform Engineering

Samuel Oyetola — Wed, 15 May 2024 14:30:08 +0000

DevOps Engineering, Site Reliability Engineering, and Platform Engineering are synonyms with minor differences between roles and responsibilities.

DevOps is a software development methodology that combines the disciplines of software development (Dev) and IT operations (Ops) to optimize and accelerate the delivery of software applications. The origins of DevOps can be traced back to the Agile software development movement in the early 2000s, which emphasized collaboration, flexibility, and rapid iteration.

DevOps also emphasizes close collaboration between software developers, IT operations staff, and other stakeholders, with a focus on delivering high-quality software applications that meet the needs of customers and end-users.

Site Reliability Engineering (SRE) is a software engineering approach that focuses on the reliability and availability of software systems. It was first introduced by Google in 2003 to manage and maintain the complex systems that power its services. SRE is different from DevOps in that it places a greater emphasis on reliability and availability, while DevOps is more focused on collaboration and agility in software development and deployment.

SRE engineers are responsible for building and maintaining highly reliable and scalable systems, through the use of automation, monitoring, and alerting tools. They work closely with software developers, infrastructure engineers, and other stakeholders to ensure that systems are designed and operated to be highly available and reliable.

Unlike DevOps, SRE teams are typically responsible for the entire lifecycle of a system, including design, development, testing, deployment, and ongoing operation. SRE and DevOps share many principles, such as automation, continuous improvement, and a culture of collaboration and transparency, but their focus and scope are different, with SRE placing a greater emphasis on reliability and availability.

latform engineering is a software engineering approach that focuses on building and maintaining the underlying infrastructure and platforms that support software applications. Platform engineers are responsible for designing and building the software infrastructure and platforms that enable software developers to build, test, and deploy their applications. They also ensure that the platforms and infrastructure are scalable, reliable, and secure.

Platform engineering is similar to SRE and DevOps, as all three approaches emphasize automation, monitoring, and continuous improvement. However, platform engineering differs from SRE and DevOps in its focus and scope. While SRE focuses on ensuring the reliability and availability of systems, and DevOps focuses on collaboration and agility in software development and deployment, platform engineering focuses on building and maintaining the underlying infrastructure and platforms that support software applications.

Platform engineers work closely with software developers, infrastructure engineers, and other stakeholders to ensure that the platforms and infrastructure are designed and operated to meet the organization’s and its customers’ needs.

DEV Community: Samuel Oyetola

How to Setup Let's Encrypt SSL with NGINX on Ubuntu 24.04 server

DevOps vs SRE vs Platform Engineering