Cloud cheat sheets

Cloud cheat sheets on Sefism, written by Tauseef Fayyaz: every concept in plain words, why it is used and the pitfall that catches people out.

76 sheets
5120 concepts

Free to learn. Credits keep it fair.

Reading is free. Adding a roadmap, keeping a cheat sheet or asking Tauseef a question uses credits, which only make sure the platform goes to people who are actually learning.

15creditswhen you join
1stroadmapfree to add
Morecreditson request, as you learn

Specialise

Go deep in one area of engineering.

Cheat sheet · Specialise
DevOps and cloud cheat sheet
Linux, Docker, Kubernetes, AWS.
Chapters
1. 1Linux, the shell and scripting
2. 2Git workflows
3. Networking for engineers
+ 7 more
- 10 chapters
- 79 concepts
Opens with credits
Cheat sheet · Specialise
Cloud engineering cheat sheet
One cloud in depth, with certifications.
Chapters
1. 1Linux and networking for cloud
2. 2Cloud concepts and billing
3. Identity and access
+ 7 more
- 10 chapters
- 75 concepts
Opens with credits
Cheat sheet · Specialise
Platform engineering and SRE cheat sheet
SLOs, observability, Kubernetes platforms.
Chapters
1. 1Reliability basics: SLIs, SLOs and error budgets
2. 2Observability: metrics, logs and traces
3. Incident response and postmortems
+ 7 more
- 10 chapters
- 76 concepts
Opens with credits
Cheat sheet · Specialise
Network engineering cheat sheet
Routing, switching, CCNA, cloud networks.
Chapters
1. 1Models, addressing and subnetting
2. 2Switching and VLANs
3. Routing: static, OSPF and BGP
+ 7 more
- 10 chapters
- 72 concepts
Opens with credits
Cheat sheet · Specialise
Cloud cost and FinOps cheat sheet
Read the bill, cut waste, forecast spend.
Chapters
1. 1How cloud billing works
2. 2Reading the bill and tagging
3. Allocation, showback and unit costs
+ 6 more
- 9 chapters
- 79 concepts
Opens with credits
Cheat sheet · Specialise
Kubernetes cheat sheet
Clusters, kubectl, workloads, Services, Gateway API, config, probes, scaling, storage, RBAC, Helm and debugging.
Chapters
1. 1How a cluster works
2. 2kubectl essentials
3. Pods and workload controllers
+ 7 more
- 10 chapters
- 73 concepts
Opens with credits
Cheat sheet · Specialise
AWS cheat sheet
The AWS services and ideas you use to build, secure, run and pay for real workloads, with CLI commands and policy JSON.
Chapters
1. 1Global infrastructure and accounts
2. 2IAM and access control
3. Compute: EC2, Lambda and containers
+ 7 more
- 10 chapters
- 73 concepts
Opens with credits

Browse the cheat sheets by topic

Each of these is its own page: the foundations shelf, the career shelf, the sheets that are open end to end. The filters above do the same thing without a page load.

Work with me

Stuck on something specific?

Writing only gets you so far. If you want an answer to your situation rather than the general case, book a session and we will work through it together. Sessions are free for approved Sefism members, and a few slots open each week.