* reverseproxy: Add more debug logs
This makes debug logging very noisy when reverse proxying, but I guess
that's the point.
This has shown to be useful in troubleshooting infrastructure issues.
* Update modules/caddyhttp/reverseproxy/streaming.go
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* Update modules/caddyhttp/reverseproxy/streaming.go
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* Add opt-in `trace_logs` option
* Rename to VerboseLogs
---------
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
fix a nil pointer dereference in AUpstreams.GetUpstreams when AUpstreams.Versions is not set (fixes caddyserver#5809)
Signed-off-by: Pascal Vorwerk <info@fossores.de>
* use gofmput to format code
* use gci to format imports
* reconfigure gci
* linter autofixes
* rearrange imports a little
* export GOOS=windows golangci-lint run ./... --fix
* reverseproxy: do not parse upstream address too early if it contains replaceble parts
* remove unused method
* cleanup
* accommodate partially replaceable port
* caddyhttp: Make use of http.ResponseController
Also syncs the reverseproxy implementation with stdlib's which now uses ResponseController as well 2449bbb5e6
* Enable full-duplex for HTTP/1.1
* Appease linter
* Add warning for builds with Go 1.20, so it's less surprising to users
* Improved godoc for EnableFullDuplex, copied text from stdlib
* Only wrap in encode if not already wrapped
* update quic-go to v0.37.0
* Bump to Go 1.20
* Bump golangci-lint version, yml syntax consistency
* Use skip-pkg-cache workaround
* Workaround needed for both?
* Seeding weakrand is no longer necessary
---------
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* added weighted round robin algorithm to load balancer
* added an adapt integration test for wrr and fixed a typo
* changed args format to Caddyfile args convention
* added provisioner and validator for wrr
* simplified the code and improved doc
When only a single request has the least amount of requests, there's no need to compute a random number, because the modulo of 1 will always be 0 anyways.
* log: make `sink` encodable
* deduplicate logger fields
* extract common fields into `BaseLog` and embed it into `SinkLog`
* amend godoc on `BaseLog` and `SinkLog`
* minor style change
---------
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* cmd: Expand cobra support
* Convert commands to cobra, add short flags
* Fix version command typo
Co-authored-by: Emily Lange <git@indeednotjames.com>
* Apply suggestions from code review
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
---------
Co-authored-by: Emily Lange <git@indeednotjames.com>
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
* added some tests for parseUpstreamDialAddress
Test 4 fails because it produces "[[::1]]:80" instead of "[::1]:80"
* support absolute windows path in unix reverse proxy address
* make IsUnixNetwork public, support +h2c and reuse it
* add new tests
* If upstreams are all using same host but with different ports
ie:
foobar:4001
foobar:4002
foobar:4003
...
Because fnv-1a has not a good enough avalanche effect
Then the hostByHashing result is not well balanced over
all upstreams
As last byte FNV input tend to affect few bits, the idea is to change
the concatenation order between the key and the upstream strings
So the upstream last byte have more impact on hash diffusion
* reverseproxy: Mask the WS close message when we're the client
* weakrand
* Bump golangci-lint version so path ignores work on Windows
* gofmt
* ugh, gofmt everything, I guess
e338648fed introduced multiple upstream
addresses. A comment notes that mixing schemes isn't supported and
therefore the first valid scheme is supposed to be used.
Fixes setting the first scheme.
fixes#5087
Ideally I'd just remove the parameter to caddy.Context.Logger(), but
this would break most Caddy plugins.
Instead, I'm making it variadic and marking it as partially deprecated.
In the future, I might completely remove the parameter once most
plugins have updated.
* feat: Multiple 'to' upstreams in reverse-proxy cmd
* Repeat --to for multiple upstreams, rather than comma-separating in a single flag
Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
* reverseproxy: Close hijacked conns on reload/quit
We also send a Close control message to both ends of
WebSocket connections. I have tested this many times in
my dev environment with consistent success, although
the variety of scenarios was limited.
* Oops... actually call Close() this time
* CloseMessage --> closeMessage
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* Use httpguts, duh
* Use map instead of sync.Map
Co-authored-by: Francis Lavoie <lavofr@gmail.com>
* break up code and use lazy reading and pool bufio.Writer
* close underlying connection when operation failed
* allocate bufWriter and streamWriter only once
* refactor record writing
* rebase from master
* handle err
* Fix type assertion
Also reduce some duplication
* Refactor client and clientCloser for logging
Should reduce allocations
* Minor cosmetic adjustments; apply Apache license
* Appease the linter
Co-authored-by: Matthew Holt <mholt@users.noreply.github.com>
This allows users to, for example, get upstreams from multiple SRV
endpoints in order (such as primary and secondary clusters).
Also, gofmt went to town on the comments, sigh
* reverseproxy: Implement retry count, alternative to try_duration
* Add Caddyfile support for `retry_match`
* Refactor to deduplicate matcher parsing logic
* Fix lint
See https://caddy.community/t/using-forward-auth-and-writing-my-own-authenticator-in-php/16410, apparently it didn't work when `copy_headers` wasn't used. This is because we were skipping adding a handler to the routes in the "good response handler", but this causes the logic in `reverseproxy.go` to ignore the response handler since it's empty. Instead, we can just always put in the `header` handler, even with an empty `Set` operation, it's just a no-op, but it fixes that condition in the proxy code.
