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36 Commits

Author SHA1 Message Date
David Jimenez d7c4a89106
Add max upstream connections dns-proxy option (#290) 
* Add max upstream connections dns-proxy option

Allows defining a limit to the number of connections that can be
established with the upstream DNS host.

If left unset, there may be situations where connections fail to
establish, which causes the Transport to create an influx of connections
causing upstream to throttle our requests and triggering a runaway
effect resulting in high CPU usage. See https://github.com/cloudflare/cloudflared/issues/91

* Code review with proposed changes

* Add max upstream connections flag to tunnel flags

* Reduce DNS proxy max upstream connections default value

Reduce the default value of maximum upstream connections on the DNS
proxy to guarantee it works on single-core and other low-end hardware.
Further testing could allow for a safe increase of this value.

* Update dns-proxy flag name

Also remove `MaxUpstreamConnsFlag` const as it's no longer referenced in more than one place and to make things more consistent with how the other flags are referenced.

Co-authored-by: Adam Chalmers <achalmers@cloudflare.com>
 2021-02-12 21:32:29 +04:00
Areg Harutyunyan 55bf904689 TUN-3471: Add structured log context to logs 2021-01-05 20:21:16 +00:00
Areg Harutyunyan 870f5fa907 TUN-3470: Replace in-house logger calls with zerolog 2020-12-23 14:15:17 -06:00
Areg Harutyunyan cad58b9b57 TUN-3561: Unified logger configuration 2020-11-23 16:49:07 +00:00
Adam Chalmers b7e91466f5 TUN-3558: cloudflared allows empty config files 2020-11-18 21:13:06 +00:00
cthuang 5974fb4cfd TUN-3500: Integrate replace h2mux by http2 work with multiple origin support 2020-11-11 15:20:57 +00:00
cthuang 9ac40dcf04 TUN-3462: Refactor cloudflared to separate origin from connection 2020-11-11 15:11:42 +00:00
Adam Chalmers 196762d9d3 TUN-3527: More specific error for invalid YAML/JSON 2020-11-10 21:42:26 +00:00
Adam Chalmers 4698ec8dee TUN-3461: Show all origin services in the UI 2020-11-10 14:25:37 +00:00
Adam Chalmers 87e2679744 TUN-3516: Better error message when parsing invalid YAML config 2020-11-09 10:35:28 -06:00
Adam Chalmers e933ef9e1a TUN-2640: Users can configure per-origin config. Unify single-rule CLI 
flow with multi-rule config file code.
 2020-10-30 07:42:20 -05:00
Igor Postelnik b6cd54d854 TUN-3459: Make service install on linux use named tunnels 2020-10-21 10:46:29 -05:00
cthuang f0cfad8efa TUN-3476: Fix conversion to string and int slice 2020-10-21 16:03:25 +01:00
Igor Postelnik ed54d150fe Move raw ingress rules to config package 2020-10-20 12:00:34 -05:00
Igor Postelnik ca4887fb19 Split out typed config from legacy command-line switches; refactor ingress commands and fix tests 2020-10-20 10:10:19 -05:00
Igor Postelnik eaf03305bd TUN-3475: Unify config file handling with typed config for new fields 2020-10-20 08:55:30 -05:00
Igor Postelnik 051908aaef TUN-3463: Let users run a named tunnel via config file setting 2020-10-19 12:27:18 +00:00
Adam Chalmers c96b9e8d8f TUN-3464: Newtype to wrap []ingress.Rule 2020-10-15 12:48:14 -05:00
Adam Chalmers 0eebc7cef9 TUN-3438: move ingress into own package, read into TunnelConfig 2020-10-12 16:33:22 +00:00
Igor Postelnik 53a1fa46a8 TUN-3452: Fix loading of flags from config file for tunnel run subcommand. This change also cleans up building of tunnel subcommand list, hides deprecated subcommands and improves help. 2020-10-09 12:07:17 -05:00
Adam Chalmers 2319003e10 TUN-3439: 'tunnel validate' command to check ingress rules 2020-10-08 22:06:40 +00:00
Dalton 5499c77e62 AUTH-2975 don't check /etc on windows 2020-08-17 12:40:36 -05:00
cthuang a7562dff68 TUN-3233: List tunnels support filtering by deleted, name, existed at and id 2020-08-07 10:09:26 +01:00
Igor Postelnik 2a3d486126 TUN-3007: Implement named tunnel connection registration and unregistration. 
Removed flag for using quick reconnect, this logic is now always enabled.
 2020-07-01 04:19:30 +00:00
Dalton 0c65daaa7d AUTH-2712 mac package build script and better config file handling when started as a service 2020-06-25 16:44:57 -05:00
Dalton 1a6403b2fd AUTH-2694 added destination header support to config file 2020-06-15 10:10:22 -05:00
Dalton 0d87279b2f AUTH-2785 service token flag fix and logger fix 2020-06-09 11:00:56 -05:00
Dalton 046be63253 AUTH-2596 added new logger package and replaced logrus 2020-05-27 17:07:19 -05:00
Dalton 2b7fbbb7b7 AUTH-2588 add DoH to service mode 2020-05-11 17:09:16 +00:00
Dalton 41c358147c AUTH-2587 add config watcher and reload logic for access client forwarder 2020-04-29 11:07:35 -05:00
Kristian Mide 07a409ffef Support unix sockets. 2019-03-06 18:33:23 -06:00
Austin Cherry 80a75e91d2 AUTH-1188: UX Review and Changes for CLI SSH Access 2018-10-25 15:50:27 -05:00
Areg Harutyunyan ca9902a8d1 TUN-1099: Bring back changes in 2018.10.1 2018-10-08 14:20:28 -05:00
Areg Harutyunyan faeba02e57 TUN-1093: Revert cloudflared to 2018.8.0 2018-10-06 14:30:51 -05:00
Nick Vollmar f7b1f7cb22 TUN-1012: Normalize config filename for Linux services 2018-10-05 11:58:59 -05:00
Austin Cherry 4f04f35bd1 AUTH-910, AUTH-1049, AUTH-1068, AUTH-1056: Generate and store Access tokens with E2EE option, curl/cmd wrapper 2018-09-28 16:05:15 -05:00