Attic - nix cache with docker

attic.Dockerfile

FROM ghcr.io/zhaofengli/attic:latest
COPY ./attic.toml /attic/server.toml
RUN mkdir -p /cache
RUN mkdir -p /data
EXPOSE 8080
CMD ["-f", "/attic/server.toml", "--mode", "monolithic"]

attic.toml

listen = "[::]:8080"
# generate this with: openssl rand 64 | base64 -w0
token-hs256-secret-base64 = "<TOKEN>"

[storage]
type = "local"
path = "/cache"

[database]
url = "sqlite:///data/attic.db?mode=rwc"

[chunking]
nar-size-threshold = 65536
min-size = 16384
avg-size = 65536
max-size = 262144

[compression]
type = "zstd"

[garbage-collection]
interval = "12 hours"

compose.yaml

services:
  attic:
    image: attic
    build:
      context: .
      dockerfile: attic.Dockerfile
    ports:
      - 8080:8080
   volumes:
      - /attic/data:/data
      - /attic/cache:/cache

Based on https://lgug2z.com/articles/deploying-a-cloudflare-r2-backed-nix-binary-cache-attic-on-fly-io/