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path: root/modules/caddyhttp/reverseproxy/circuitbreaker.go
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2020-03-24Remove some non-essential plugins from this repo (#2780)Matthew Holt
Brotli encoder, jsonc and json5 config adapters, and the unfinished HTTP cache handler are removed. They will be available in separate repos.
2020-01-18reverse_proxy: CB docs; rename type -> factor (#2986)Mohammed Al Sahaf
* v2: add documentation for circuit breaker config and "random selection" load balancing policy * v2: rename circuit breaker config inline key from `type` to `breaker` to avoid json key clash between the `circuit_breaker` type and the `type` field of the generic circuit breaker Config struct used by circuit breaking implementations * v2: restore the circuit breaker inline key to `type` and rename the name circuit breaker config field from `Type` to `Factor`
2019-12-10v2: Module documentation; refactor LoadModule(); new caddy struct tags (#2924)Matt Holt
This commit goes a long way toward making automated documentation of Caddy config and Caddy modules possible. It's a broad, sweeping change, but mostly internal. It allows us to automatically generate docs for all Caddy modules (including future third-party ones) and make them viewable on a web page; it also doubles as godoc comments. As such, this commit makes significant progress in migrating the docs from our temporary wiki page toward our new website which is still under construction. With this change, all host modules will use ctx.LoadModule() and pass in both the struct pointer and the field name as a string. This allows the reflect package to read the struct tag from that field so that it can get the necessary information like the module namespace and the inline key. This has the nice side-effect of unifying the code and documentation. It also simplifies module loading, and handles several variations on field types for raw module fields (i.e. variations on json.RawMessage, such as arrays and maps). I also renamed ModuleInfo.Name -> ModuleInfo.ID, to make it clear that the ID is the "full name" which includes both the module namespace and the name. This clarity is helpful when describing module hierarchy. As of this change, Caddy modules are no longer an experimental design. I think the architecture is good enough to go forward.
2019-10-09reverse_proxy: Add local circuit breakerMatthew Holt
This migrates a feature that was previously reserved for enterprise users, according to https://github.com/caddyserver/caddy/issues/2786. The local circuit breaker is a simple metrics counter that can cause the reverse proxy to consider a backend unhealthy before it actually goes offline, by measuring recent latencies over a sliding window. Credit to Danny Navarro