MkDocs with the Material for MkDocs theme has reasonable blogging support, and a dockerized image for building. It also has some other features like footnotes,

MkDocs with the Material for MkDocs theme has reasonable blogging support, and a dockerized image for building. It also has some other features like footnotes, mermaid diagrams, and "code annotations" for code blocks. Type markdown, build in docker, publish assets to GitHub Pages :tada: