summaryrefslogtreecommitdiff
path: root/modules/caddyhttp/reverseproxy/httptransport.go
AgeCommit message (Collapse)Author
2022-03-06reverseproxy: Dynamic upstreams (with SRV and A/AAAA support) (#4470)Matt Holt
* reverseproxy: Begin refactor to enable dynamic upstreams Streamed here: https://www.youtube.com/watch?v=hj7yzXb11jU * Implement SRV and A/AAA upstream sources Also get upstreams at every retry loop iteration instead of just once before the loop. See #4442. * Minor tweaks from review * Limit size of upstreams caches * Add doc notes deprecating LookupSRV * Provision dynamic upstreams Still WIP, preparing to preserve health checker functionality * Rejigger health checks Move active health check results into handler-specific Upstreams. Improve documentation regarding health checks and upstreams. * Deprecation notice * Add Caddyfile support, use `caddy.Duration` * Interface guards * Implement custom resolvers, add resolvers to http transport Caddyfile * SRV: fix Caddyfile `name` inline arg, remove proto condition * Use pointer receiver * Add debug logs Co-authored-by: Francis Lavoie <lavofr@gmail.com>
2022-02-01reverseproxy: Avoid returning a `nil` error during GetClientCertificate (#4550)Francis Lavoie
2021-11-24reverseproxy: Adjust defaults, document defaults (#4436)Francis Lavoie
* reverseproxy: Adjust defaults, document defaults Related to some of the issues in https://github.com/caddyserver/caddy/issues/4245, a complaint about the proxy transport defaults not being properly documented in https://caddy.community/t/default-values-for-directives/14254/6. - Dug into the stdlib to find the actual defaults for some of the timeouts and buffer limits, documenting them in godoc so the JSON docs get them next release. - Moved the keep-alive and dial-timeout defaults from `reverseproxy.go` to `httptransport.go`. It doesn't make sense to set defaults in the proxy, because then any time the transport is configured with non-defaults, the keep-alive and dial-timeout defaults are lost! - Sped up the dial timeout from 10s to 3s, in practice it rarely makes sense to wait a whole 10s for dialing. A shorter timeout helps a lot with the load balancer retries, so using something lower helps with user experience. * reverseproxy: Make keepalive interval configurable via Caddyfile * fastcgi: DialTimeout default for fastcgi transport too
2021-09-29Move from deprecated ioutil to os and io packages (#4364)KallyDev
2021-06-16Some misc. cleanupMatthew Holt
The fastcgi changes came from v1 which don't make sense in v2. Fix comment about default value in reverse proxy keep alive.
2021-06-15reverseproxy: Fix overwriting of max_idle_conns_per_host (closes #4201)Matthew Holt
Also split the Caddyfile subdirective keepalive_idle_conns into two properties so the conns and conns_per_host can be set separately. This is technically a breaking change, but probably anyone who this breaks already had a broken config anyway, and silently fixing it won't help them fix their configs.
2021-02-09reverseproxy: Response buffering & configurable buffer sizeMatthew Holt
Proxy response bodies can now be buffered, and the size of the request body and response body buffer can be limited. Any remaining content that doesn't fit in the buffer will remain on the wire until it can be read; i.e. bodies are not truncated, even if the buffer is not big enough. This fulfills a customer requirement. This was made possible by their sponsorship!
2020-11-22ci: Use golangci's github action for linting (#3794)Dave Henderson
* ci: Use golangci's github action for linting Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix most of the staticcheck lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the prealloc lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the misspell lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the varcheck lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the errcheck lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the bodyclose lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the deadcode lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the unused lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the gosec lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the gosimple lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the ineffassign lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Fix the staticcheck lint errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Revert the misspell change, use a neutral English Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Remove broken golangci-lint CI job Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Re-add errantly-removed weakrand initialization Signed-off-by: Dave Henderson <dhenderson@gmail.com> * don't break the loop and return * Removing extra handling for null rootKey * unignore RegisterModule/RegisterAdapter Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com> * single-line log message Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * Fix lint after a1808b0dbf209c615e438a496d257ce5e3acdce2 was merged Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Revert ticker change, ignore it instead Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Ignore some of the write errors Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Remove blank line Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Use lifetime Signed-off-by: Dave Henderson <dhenderson@gmail.com> * close immediately Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * Preallocate configVals Signed-off-by: Dave Henderson <dhenderson@gmail.com> * Update modules/caddytls/distributedstek/distributedstek.go Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com> Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-10-30reverseproxy: Add max_idle_conns_per_host; fix godocs (#3829)Francis Lavoie
2020-10-13reverseproxy: Fix dial placeholders, SRV, active health checks (#3780)Matt Holt
* reverseproxy: Fix dial placeholders, SRV, active health checks Supercedes #3776 Partially reverts or updates #3756, #3693, and #3695 * reverseproxy: add integration tests Co-authored-by: Mohammed Al Sahaf <msaa1990@gmail.com>
2020-09-17reverseproxy: Correct alternate port for active health checks (#3693)Mohammed Al Sahaf
* reverseproxy: construct active health-check transport from scratch (Fixes #3691) * reverseproxy: do upstream health-check on the correct alternative port * reverseproxy: add integration test for health-check on alternative port * reverseproxy: put back the custom transport for health-check http client * reverseproxy: cleanup health-check integration test * reverseproxy: fix health-check of unix socket upstreams * reverseproxy: skip unix socket tests on Windows * tabs > spaces Co-authored-by: Francis Lavoie <lavofr@gmail.com> * make the linter (and @francislavoie) happy Co-authored-by: Francis Lavoie <lavofr@gmail.com> * One more lint fix Co-authored-by: Francis Lavoie <lavofr@gmail.com> Co-authored-by: Francis Lavoie <lavofr@gmail.com>
2020-07-18reverseproxy: add support for custom DNS resolver (#3479)Mohammed Al Sahaf
* reverse proxy: add support for custom resolver * reverse proxy: don't pollute the global resolver with bootstrap resolver setup * Improve documentation of reverseproxy.UpstreamResolver fields Co-authored-by: Matt Holt <mholt@users.noreply.github.com> * reverse proxy: clarify the name resolution conventions of upstream resolvers and bootstrap resolver * remove support for bootstraper of resolver * godoc and code-style changes Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
2020-05-05pki: Embedded ACME server (#3198)Matt Holt
* pki: Initial commit of embedded ACME server (#3021) * reverseproxy: Support auto-managed TLS client certificates (#3021) * A little cleanup after today's review session
2020-05-05httpserver: Add experimental H2C support (#3289)Matt Holt
* reverse_proxy: Initial attempt at H2C transport/client support (#3218) I have not tested this yet * Experimentally enabling H2C server support (closes #3227) See also #3218 I have not tested this * reverseproxy: Clean up H2C transport a bit * caddyhttp: Update godoc for h2c server; clarify experimental status * caddyhttp: Fix trailers when recording responses (fixes #3236) * caddyhttp: Tweak h2c config settings and docs
2020-04-09reverseproxy: Minor tweaksMatthew Holt
We'll need that context in v2.1 when the transport can manage its own client certificates; see #3198
2020-04-07reverseproxy: Remove NTLM transport; refactor and improve docsMatthew Holt
2020-01-22reverseproxy: Fix casing of RootCAPEMFilesMatthew Holt
2020-01-09http: Change routes to sequential matcher evaluation (#2967)Matt Holt
Previously, all matchers in a route would be evaluated before any handlers were executed, and a composite route of the matching routes would be created. This made rewrites especially tricky, since the only way to defer later matchers' evaluation was to wrap them in a subroute, or to invoke a "rehandle" which often caused bugs. Instead, this new sequential design evaluates each route's matchers then its handlers in lock-step; matcher-handlers-matcher-handlers... If the first matching route consists of a rewrite, then the second route will be evaluated against the rewritten request, rather than the original one, and so on. This should do away with any need for rehandling. I've also taken this opportunity to avoid adding new values to the request context in the handler chain, as this creates a copy of the Request struct, which may possibly lead to bugs like it has in the past (see PR #1542, PR #1481, and maybe issue #2463). We now add all the expected context values in the top-level handler at the server, then any new values can be added to the variable table via the VarsCtxKey context key, or just the GetVar/SetVar functions. In particular, we are using this facility to convey dial information in the reverse proxy. Had to be careful in one place as the middleware compilation logic has changed, and moved a bit. We no longer compile a middleware chain per- request; instead, we can compile it at provision-time, and defer only the evaluation of matchers to request-time, which should slightly improve performance. Doing this, however, we take advantage of multiple function closures, and we also changed the use of HandlerFunc (function pointer) to Handler (interface)... this led to a situation where, if we aren't careful, allows one request routed a certain way to permanently change the "next" handler for all/most other requests! We avoid this by making a copy of the interface value (which is a lightweight pointer copy) and using exclusively that within our wrapped handlers. This way, the original stack frame is preserved in a "read-only" fashion. The comments in the code describe this phenomenon. This may very well be a breaking change for some configurations, however I do not expect it to impact many people. I will make it clear in the release notes that this change has occurred.
2020-01-07reverse_proxy: Add tls_trusted_ca_certs to Caddyfile (#2936)Zaq? Wiedmann
Allows specifying ca certs with by filename in `reverse_proxy.transport`. Example ``` reverse_proxy /api api:443 { transport http { tls tls_trusted_ca_certs certs/rootCA.pem } } ```
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.
2019-11-05reverse_proxy: Add support for NTLMMatthew Holt
2019-11-05reverse_proxy: Make HTTP versions configurable, don't set NextProtosMatthew Holt
2019-10-29proxy: Forgot to commit importMatthew Holt
2019-10-29proxy: Enable HTTP/2 on transport to backendMatthew Holt
2019-10-10reverse_proxy: Customize SNI value in upstream request (closes #2483)Matthew Holt
2019-10-05reverse_proxy: Implement retry_match; by default only retry GET requestsMatthew Holt
See https://caddy.community/t/http-proxy-and-non-get-retries/6304
2019-09-14reverse_proxy: Close idle connections on module unloadMatthew Holt
2019-09-05fastcgi: Set default root path; add interface guardsMatthew Holt
2019-09-05Reconcile upstream dial addresses and request host/URL informationMatthew Holt
My goodness that was complicated Blessed be request.Context Sort of
2019-09-03Some cleanup and godocMatthew Holt
2019-09-03reverse_proxy: Implement remaining TLS config for proxy to backendMatthew Holt
2019-09-02reverse_proxy: WIP refactor and support for FastCGIMatthew Holt