Cloud & DevOps

• Cloud Computing small

  Cloud computing is renting compute, storage and services instead of owning the machines that provide them.

• AWS large

  AWS is the largest public cloud, and its catalogue is the reason "the cloud" is hard to describe in one sentence.

• Microsoft Azure medium

  Azure is Microsoft's public cloud.

• Google Cloud Platform (GCP) medium

  Google Cloud Platform is Google's public cloud.

• Serverless Computing medium

  Serverless computing is running code on a managed runtime that starts it when a request arrives and stops it when the request is done.

• Docker medium

  Docker packages an application together with everything it needs to run — libraries, runtime, configuration defaults — into an image.

• Terraform medium

  Terraform describes infrastructure as a set of declarations in files, compares them with what actually exists, and makes the difference.

• CI/CD medium

  Continuous integration is the practice of merging every change into the main line often, with an automated build and test run proving that the result…

• Linux Administration large

  Linux administration is the work of keeping a Linux host healthy and understood: who may log in and what they may do, which processes run and how they are…

• Networking Fundamentals (HTTP / DNS / TLS) medium

  This is the application layer of the network: what a request looks like, how a name becomes an address, and how the connection is made trustworthy.

• Cloud Cost Management small

  Cloud cost management is the set of practices that keep a cloud bill proportionate to the value the cloud is delivering.

• Cloud Security & IAM medium

  Cloud security begins with identity: the set of principals that may call the provider's API, and the permissions each holds.

• Cloud-Native Computing medium

  Cloud-native is a way of building software that assumes the infrastructure is elastic, disposable and programmable.

• Kubernetes large

  Kubernetes is an orchestrator: you declare how many copies of a container should run, how they should be reachable and what resources they need, and it…

• GitHub Actions medium

  GitHub Actions is the automation system built into GitHub.

• Jenkins small

  Jenkins is a self-hosted automation server: you install it, point it at your repositories and describe the builds it should run.

• Azure DevOps small

  Azure DevOps is Microsoft's suite of delivery tools: hosted git repositories, a pipeline service, a work-item tracker and an artifact feed, sold together…

• Monitoring & Observability (Prometheus / Grafana) medium

  Monitoring is collecting signals about a running system; observability is having enough of them, joined together, to answer a question you did not…

• Nginx small

  Nginx is a web server that is most often deployed as a reverse proxy: it accepts connections from clients and passes them to one or more application…

• OpenShift small

  OpenShift is Red Hat's distribution of Kubernetes with the operational gaps filled in: a built-in registry, a web console, integrated pipelines,…

• Helm small

  Helm packages a set of Kubernetes manifests into a chart: a versioned bundle with templates and a file of values.

• Istio small

  Istio is a service mesh: a set of proxies, one beside each workload, that carry the traffic between services and enforce policy on it.

• Site Reliability Engineering medium

  Site reliability engineering is the practice of stating how reliable a service needs to be, measuring whether it is, and making that measurement the…