# crosbymichael/skydock

Service discovery via DNS for docker

Repository: https://github.com/crosbymichael/skydock
Canonical: https://ross.abutalabs.com/products/skydock
Language: Go
License: MIT
License Family: permissive
Last push: 2017-02-06T21:34:13+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4608, "days_push": 3495, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1051, forks 82 (observed 2026-08-28T04:03:23.071327+00:00)

## What it is
Skydock is a Go service that monitors Docker container lifecycle events and automatically registers container services as DNS records in SkyDNS, enabling standard DNS-based service discovery for Docker containers. It is now deprecated because modern Docker includes built-in DNS-based service discovery.

## Use cases
- discover docker containers via dns queries
- auto-register docker containers in dns
- service discovery for legacy docker versions
- resolve container services by image name
- avoid client libraries for service discovery
- query srv records for dockerized services

## When to choose
- running an old Docker version without built-in DNS discovery
- you need zero-code-change DNS-based discovery for legacy container setups
- you want a reference implementation of Docker event-driven DNS registration

## When to avoid
- using any recent version of Docker, which has native DNS service discovery
- starting a new project needing service discovery
- you need multi-host discovery or active maintenance

## Facets
- artifact type: service
- maturity: abandoned
- function: service-discovery, networking, microservices, monitoring
- domain: microservices, networking, self-hosted
- platform: go, self-hosted
- tags: docker, skydns, dns-discovery, deprecated, container-orchestration, containers, devops, linux

## Member repositories
- crosbymichael/skydock (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:23.071327+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:00:03.515044+00:00, confidence not recorded.
  - readme: https://github.com/crosbymichael/skydock (fetched 2026-08-28T04:03:23.071327+00:00, sha c2b349541d77)
- Data as of 2026-08-30T08:39:29.467469+00:00.