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CHANGELOG.md

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Changelog

[0.8.0]

New Features

  • Transparent mode for UDP connections #218
  • Environment variables substitution into config (disabled by default) #201
  • Combined priority + weight balancing, support of weight = 0 and ignore negative weight #204
  • Support of Consul ACL tokens #195
  • Pidfile support #190
  • TLS probe healthcheck #173
  • IPV6 support for SRV discovery #222

Added

  • Multistage docker build
  • Build as snap package
  • Latest letsencrypt changes

Removed

  • Windows/386 build

Fixed

  • Panic when removing UDP server with enabled access control #215
  • Servers deleted via API have scheduler still running #140
  • Iphash random selection of backends for the same client ip #229
  • Fixed systemd unit #190
  • JSON logs format
  • High cpu load by UDP server in max_requests=1 mode (fire and forget) by using connection pool #290
  • Logging of metric server error #277

[0.7.0]

New Features

  • Prometheus Metrics Endpoint
  • Improved UDP performance
  • Added profiler (otpional, disabled by default)
  • Added probe healthceck with different strategies

Fixed

  • CGO Requirement for DNS has been replaced with netgo #125
  • UDP server was not performing access checks
  • Empty srv_dns_protocol messed up failpolicy value #193
  • Fixed missing acme (letsencrypt) tls config during server start #214

[0.6.1] - 2018-10-23

This release brings only bugfixes

Fixed

  • No binaries were generated for some of the platforms during make dist
  • Regression of roundrobin balancer (it was acting on randomized list of backends)
  • Docker image was not working due to missing dynamic library dependencies
  • Gobetween became stuck in very rare cases during reading hostname info (sni) from new tls connections.

[0.6.0] - 2018-08-21

This release brings some improvements and bugfixes.

New Features

  • ACME (Letsencrypt) http challenge support (sni challenge is disabled due to security considerations)

Added

  • iphash1 algorithm (consistent on backend removal)
  • More strict check of UDP server configuration
  • /ping public endpoint for healthcheck (PR #127 by Mike Schroeder)
  • Support for using the Host Address (PR #123 by David Beck)
  • Mentioned gowebhello as an alternative webserver (PR #137 by Shantanu Gadgil)

Fixed

  • Fixed iphash algorithm. It was not working properly at all
  • Fixed UDP 'session' tracking problems
  • Fixed active connections underflow on backend removed and added back, but connections remain established

Changed

  • Removed not necessary dependency on libacl1-dev
  • Replaced missing dependencies
  • Removed lxdhelpers (PR #113 by Joe Topjian)

[0.5.0] - 2017-10-13

This release brings several new features and various fixes and improvements.

New Features

  • ACME (Letsencrypt) protocol support for TLS server
  • PROXY protocol v1 support (PR #101 by Nico Schieder)
  • LXD Discovery (PR #76 by Joe Topjian)

Added

  • Added more info to server and sni logging errors
  • Version number first line to output on startup
  • Add sni value to 'not-matching' SNI error message
  • Version flags (--version and -v)
  • Implemented max requests and responses parameters in UDP

Fixed

  • Dns discovery when A records are not presented in additional section of SRV response
  • Sni middleware to work fine with default unexpected hostname strategy
  • Propagating sni backend value in scheduler after discovery

Changed

  • Optimizing Docker image (now FROM scratch)

[0.4.0] - 2017-04-07

This release brings many new features and improvements, as well as bugfixes. Major things are UDP support, TLS termination, TLS proxy, SNI-aware balancing.

New Features

  • UDP protocol support
  • TLS termination
  • TLS proxy (connect to backends with TLS and configurable certs)
  • SNI-aware balancing (routing based on hostname from TLS Server Name Indication record)

Added

  • Possibility to enable CORS for REST API

Fixed

  • Messed up client_idle_timeout and backend_idle_timeout
  • Bugs in balancers: iphash, roundrobin, weight - now work more accurately
  • Goroutine/memory leak caused by consul discovery not reusing http client

Changed

  • Docker discovery now can have empty TLS certificates.
  • Migrated to golang 1.8. Now it's minimal requirement for the build.

[0.3.0] - 2016-08-18

This release brings several new features and improvements, as well as bugfixes. Major things are integrations with Consul, more flexible command-line options and Access control module.

New Features

  • Consul Discovery
  • Ability to load config not only from file, but also from URL and Consul key-value storage on startup
  • More powerful command-line interface
  • Leastbandwidth balancing strategy

Added

  • Allow passing parameters as GOBETWEEN env variable instead of args
  • Possibility to specify format in /dump endpoint (toml or json)
  • Refused connections counters for backends
  • TCP mode for DNS SRV Discovery

Fixed

  • Creating server with the same name via rest api causes api to freeze
  • Runtime error when no [default] section is present in config

Changed

  • Replaced big.Int with uint64 for simplicity and performance reasons.

[0.2.0] - 2016-07-22

This release brings several big features such as full-functional REST API and Stats, as well as may bugfixes and improvements. All changes are backward-compatible with 0.1.0.

New Features

  • REST API implementation (info, servers list/create/remove, stats, config dump).
  • Implemented gathering stats for servers and backends (rx/tx, rx/tx per second, connections count, etc)

Added

  • Set GOMAXPROCS to cpu count automatically if no env var is present
  • Added TLS support for Docker discovery
  • Added docker_container_host_env_var property to Docker discovery
  • Allow any type of value (int or string) in port in JSON discovery
  • Make healthchecks optional

Fixed

  • Fixed panic runtime error exec discovery when exec_command is not valid path and timeout=0
  • Fixed roundrobin balance strategy
  • Fixed how SRV discovery handler large UDP responses; Fixed sometimes missed port.
  • Fixed parsing backend on windows (with \r newlines)

[0.1.0] - 2016-06-08

Added

  • Initial project implementation (by @yyyar and @kikom).