Dan Milne - Dkam's Blog

Dkam's Blog

Dan Milne

Multiple Databases in One Postgres Container

Recently, some new Ruby Gems were released which aim to consolidate various supporting service for Rails such as Redis, into database backed systems. These gems are : solid_queue, solid_cache and solid_cable Here's how I setup SolidQueue and SolidCache. Booko's databases run inside Docker containers

TIL 20250217

* With larger Docker images, splitting out the busy work ( git checkouts, compilation ) of the build state, and creating a new image as the base for the remainder of the Docker image can make the builds and pushes much faster. * If you're building Docker images for architectures which aren&

TIL 20250209

Things I Learnt today * Embedding models have a maximum context length and if your input is larger than that, you'll need to chunk it, ideally with overlap. * You sometimes need to include a prompt telling the embedding models you’re generating embeddings, both for generating embeddings for comparison

A new threshold for commenting code.

My new code commenting threshold: I'll add explanatory comments if I suspect an LLM will make incorrect assumptions about the code during review.

Deploying Rails + SQLite with Kamal

Today I learnt about Kamal's ability to map Docker volumes into containers. When you're using SQLite, without using volumes, your SQLite database will be trapped inside your image, forever being replaced every time you deploy your app. Rails 8 seems to like storing SQLite databases in

Things LLMs are great at.

Kagi's code assistant, powered by Claude 3.5 has become quite embedded in my day-to-day Rails development and in my administration of Booko. An area where it really improves my quality of life, is pasting in a bunch of logs or an exception - or both, and having

Dog

Run Ghost in Docker compose

Experimenting with running Ghost in Docker compose