Skip to content
Kevo Rojas
esen
Roadmap

DevOps roadmap

From the terminal to the cloud, step by step. In the long videos, the same app goes through every stage.

Your progress is saved only in this browser.localStorage
Privacy
Your progress3 stages with videos

All stages

The same path as a list: every stage with its videos, in order.

In Spanish · English subtitles

  1. 1. Terminal

    This stage is in the works.

  2. 2. Git

    Version control for your code

    1. What is Git? (Watch on YouTube, (opens in a new tab))

      What Git is and what it's for: git init, the commit as a snapshot of your project, going back to any version and how it merges a team's work. And why GitHub isn't Git.

  3. 3. Infrastructure

    This stage is in the works.

  4. 4. Containers

    This stage is in the works.

  5. 5. Kubernetes

    Orchestrating containers: pods, Deployments and Services

    1. What is Kubernetes? (Watch on YouTube, (opens in a new tab))

      What problem Kubernetes solves, the two parts of a cluster (control plane and nodes) and why it fixes itself: it keeps comparing what you asked for with what is running.

    2. What is a pod? (Watch on YouTube, (opens in a new tab))

      What a pod is, what its containers share and what happens when one crashes. Plus why you almost never create a pod on its own: it won't come back, scale or keep history.

    3. What is a Deployment? (Watch on YouTube, (opens in a new tab))

      How a Deployment looks after your app: its ReplicaSet replaces dead pods, you scale by changing one number and you update with a rolling update, with rollback if it fails.

    4. What are StatefulSet and DaemonSet? (Watch on YouTube, (opens in a new tab))

      When a Deployment isn't enough: a StatefulSet gives each pod a fixed name, its own disk and ordered startup; a DaemonSet runs one pod on every node in the cluster.

    5. What is a Service? (Watch on YouTube, (opens in a new tab))

      How to reach pods whose IPs keep changing: a Service gives you a stable IP and name, finds pods by their labels and spreads the traffic. Plus ClusterIP, NodePort and LoadBalancer.

    6. What is a ConfigMap? (Watch on YouTube, (opens in a new tab))

      How to give your app its configuration without baking it into the image: a ConfigMap as environment variables or as a file, and why sometimes you change it and nothing happens.

    7. What is a Secret? (Watch on YouTube, (opens in a new tab))

      How to store passwords, tokens and certificates in Kubernetes: the Secret types (Opaque, TLS and registry credentials), why base64 is not encryption and what actually protects it.

  6. 6. CI/CD

    This stage is in the works.

  7. 7. Infrastructure as code

    Your infrastructure written as code, with Terraform

    1. What is Terraform? (Watch on YouTube, (opens in a new tab))

      What Terraform is and why you always read the plan before the apply: the state, which changes happen in place and which replace the resource, manual changes and import.

  8. 8. Cloud

    This stage is in the works.

Goal: DevOps