¿DevOps?

1. Sysadmin: Systems Administrator
2. DevOps: You build it, you run it.
3. SRE: Systems Reliability Engineer
4. Platform Engineering: DevOps Is Dead...

And yet something new... Why?!? DevOps primary consequence
is the increasing cognitive load put on developers.

Are they really different?

Primary goals...

• DevOps: Optimize the development process.
• SRE: Maximum application reliability.
• Platform Engineering: Optimize the speed and efficiency of software delivery operations.

Article: How is Platform Engineering Different from DevOps and SRE?

Syadmin, DevOps or SRE?

Let's call it: Modern System Administration

• SRE Google's view Book & site
• Modern System Administration by Jennifer Davis, Nov 2022, O'Reilly

Hosting

What we can use today

• On-Prem
• Cloud Computing:
  • Virtual Machines
  • Containers
  • Serverless

Cloud Computing

VMs, Cointainers or Serverless?

Cloud Computing Mayor Players

"minor" players: DO, Linode, Vultr

Cloud Services

Caching Services

• CloudFlare
• Netlify
• AWS CloudFront
• Azure CDN
• Fastly
• Akamai
• ...

Network & Security

• IPv4 vs IPv6
• Load balancers
• Private Virtual Networks
• VPNs
• letsEncrypt

Monitoring

• Azure Monitor (Insights, Visualize, Analize, Respond, more...)
• Amazon CloudWatch (Collect, Monitor, Act & Analize)
• New Relic (Software/solution as a service)
• DataDog (Online Service to store logs)
• ELK stack (Elasticsearch, Logstash & Kibana)
• Prometheus (OSS: Collecting your data)
• Grafana (OSS: Graphing your data)
• InfluxDB (OSS: Time Series DB)

Do you know what your Drupal is doing? Observe it!
(Prometheus & Graphana example @ Drupal Prague 2022)

Docker

And its moving parts

Docker

• dockerfile
• host, images, container, ...
• Registry
• Docker Compose
• ...

Docker Compose

Why? You can define your application stack in a file (and use it to build it).

Making it simple...

Why? Templates for Drupal, Wordpress, LAMP, Node, etc...

Kubernetes

CI/CD alternatives

(continuous integration & continuous delivery/deployment)

• CircleCI
• Github Actions
• GitlabCI
• Bitbucket pipelines
• Jenkins

CircleCI

weKnow articles: CircleCI 101 & Github Actions.

Programming & Languages

Bash, Python & YAML

Infrastructure as code

• Chef, Puppet, SaltStack, ...
• Ansible (RedHat)
• Azure Bicep & ARM templates
• AWS CloudFormation & AWS CLI
• Terraform (Hashicorp)

Ansible

What do you want hear about next?

• Cloud Computing (ie. AWS)
• Docker (innerworking, build & debug)
• CI/CD (ie. CircleCI)
• Network, Security & Monitoring
• Something different?

Link to survey