RubyGems

NORA acts as a caching proxy for rubygems.org. Gem and gemspec files are cached immutably; index metadata uses TTL-based refresh. This is a proxy-only registry — publishing gems through NORA is not supported.

Client Configuration

Configure Bundler to use NORA as a mirror for rubygems.org:

bundle config mirror.https://rubygems.org http://nora.example.com:4000/gems/

Or set it in your Gemfile:

source "http://nora.example.com:4000/gems/"

Upstream Proxy

config.toml:

[gems]
enabled = true
proxy = "https://rubygems.org"
proxy_timeout = 30
index_ttl = 300  # seconds

Environment variables:

Variable	Description	Default
`NORA_GEMS_ENABLED`	Enable RubyGems proxy	`false`
`NORA_GEMS_PROXY`	Upstream registry URL	`https://rubygems.org`
`NORA_GEMS_PROXY_AUTH`	Upstream auth (`user:pass`)	—
`NORA_GEMS_PROXY_TIMEOUT`	Upstream timeout in seconds	`30`
`NORA_GEMS_INDEX_TTL`	Index cache TTL in seconds	`300`

Features

Feature	Status	Notes
Compact index (`/info/{name}`)	Full	TTL-cached
Gem download (`/gems/{name}-{ver}.gem`)	Full	Immutable cache
Gemspec (`/quick/Marshal.4.8/...`)	Full	Immutable cache
Full index (`specs.4.8.gz`)	Full	TTL-cached
Latest index (`latest_specs.4.8.gz`)	Full	TTL-cached
Gem push	—	Proxy-only (read)

Known Limitations

Proxy-only: gem push is not supported. NORA caches gems downloaded from the upstream registry.
Disabled by default. Set NORA_GEMS_ENABLED=true to activate.