cheat sheets
OWASP cheat sheet series
OWASP cheat sheet the OWASP Cheat Sheet Series was created to provide a concise collection of high value information on specific application security topics.
Docker cheat sheet series
Docker cheat sheet "With Docker, developers can build any app in any language using any toolchain. “Dockerized” apps are completely portable and can run anywhere - colleagues’ OS X and Windows laptops, QA servers running Ubuntu in the cloud, and production data center VMs running Red Hat.