Initial commit of RR 2.0v2.0.0-alpha1

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+CHANGELOG
+=========
+
+v1.8.3 (02.09.2020)
+-------------------
+- Fix superfluous response.WriteHeader issue.
+- Proper handle of `broken pipe` error on Linux and Windows.
+- PCI DSS compliant upgrade (thanks @antonydevanchi).
+- Fix HSTS header (thanks @antonydevanchi).
+- Add Request and Response headers to static files (thanks @siad007).
+- Add user_namespaces check when running RR worker from a particular user.
+
+v1.8.2 (06.06.2020)
+-------------------
+- Bugfix release
+
+v1.8.1 (23.05.2020)
+-------------------
+- Update goridge version to 2.4.4
+- Fix code warnings from phpstan
+- Improve RPC
+- Create templates for the Bug reporting and Feature requests
+- Move docker images from golang-alpine to regular golang images
+- Add support for the CloudFlare CF-Connecting-IP and True-Client-IP headers (thanks @vsychov)
+- Add support for the Root CA via the `rootCa` .rr.yaml option
+- See the full milestone here: [link](https://github.com/spiral/roadrunner/milestone/11?closed=1)
+
+v1.8.0 (05.05.2020)
+-------------------
+- Update goridge version to 2.4.0
+- Update PHP version to the 7.2 (currently minimum supported)
+- See the full milestone here: [link](https://github.com/spiral/roadrunner/milestone/10?closed=1)
+
+v1.7.1 (22.04.2020)
+-------------------
+- Syscall usage optimized. Now the data is packing and sending via 1 (or 2 in some cases) send_socket calls, instead of 2-3 (by @vvval)
+- Unix sockets in Windows (AF_UNIX) now supported.
+- Systemd unit file now in the root of the repository. Feel free to read the [docs](https://roadrunner.dev/docs/beep-beep-systemd) about running RR as daemon on Linux based systems.
+- Added ability to run the worker process from the particular user on Linux-based systems. Make sure, that the user have the permissions to run the script. See the [config](https://roadrunner.dev/docs/intro-config), option `user`.
+- Fixed: vendor directory conflict with golang part of the application. Now php uses vendor_php directory for the dependencies.
+- Goridge updated to version 2.3.2.
+- Deprecated Zend dependency replaced with Laminas-diactoros.
+- See the full log: [Milestone](https://github.com/spiral/roadrunner/milestone/9?closed=1)
+
+v1.7.0 (23.03.2020)
+-------------------
+- Replaced std encoding/json package with the https://github.com/json-iterator/go
+
+v1.6.4 (14.03.2020)
+-------------------
+- Fixed bug with RR getting unreasonable without config
+- Fixed bug with local paths in panic messages
+- Fixed NPE bug with empty `http` config and enabled `gzip` plugin
+
+v1.6.3 (10.03.2020)
+-------------------
+- Fixed bug with UB when the plugin is failing during start
+- Better signals handling
+- Rotate ports in tests
+- Added BORS to repository [https://bors.tech/], so, now you can use commands from it, like `bors d=@some_user`, `bors try`, or `bors r+`
+- Reverted change with `musl-gcc`. We reverted `CGO_ENABLED=0`, so, CGO turned off for all targets and `netgo`, `osuser` etc.. system-dependent packages are not statically linked. Also separate `musl` binary provided.
+- macOS temporarily removed from CI
+- Added curl dependency to download rr (@dkarlovi)
+
+v1.6.2 (23.02.2020)
+-------------------
+- added reload module to handle file changes
+
+v1.6.1 (17.02.2020)
+-------------------
+- When you run ./rr server -d (debug mode), also pprof server will be launched on :6061 port (this is default golang port for pprof) with the default endpoints (see: https://golang.org/pkg/net/http/pprof/)
+- Added LDFLAGS "-s" to build.sh --> https://spiralscout.com/blog/golang-software-testing-tips
+
+v1.6.0 (11.02.2020)
+-------------------
+- Moved to GitHub Actions, thanks to @tarampampam
+- New GZIP handler, thanks to @wppd
+- Tests stabilization and fix REQUEST_URI for requests through FastCGI, thanks to @marliotto
+- Golang modules update and new RPC method to register metrics from the application, thanks to @48d90782
+- Deadlock on timer update in error buffer [bugfix], thanks to @camohob
+
+v1.5.3 (23.12.2019)
+-------------------
+- metric and RPC ports are rotated in tests to avoid false positive
+- massive test and source cleanup (more error handlers) by @ValeryPiashchynski
+- "Server closed" error has been suppressed
+- added the ability to specify any config value via JSON flag `-j`
+- minor improvements in Travis pipeline
+- bump the minimum TLS version to TLS 1.2
+- added `Strict-Transport-Security` header for TLS requests
+
+v1.5.2 (05.12.2019)
+-------------------
+- added support for symfony/console 5.0 by @coxa
+- added support for HTTP2 trailers by @filakhtov
+
+v1.5.1 (22.10.2019)
+-------------------
+- bugfix: do not halt stop sequence in case of service error
+
+v1.5.0 (12.10.2019)
+-------------------
+- initial code style fixes by @ScullWM
+- added health service for better integration with Kubernetes by @awprice
+- added support for payloads in GET methods by @moeinpaki
+- dropped support of PHP 7.0 version (you can still use new server binary)
+
+v1.4.8 (06.09.2019)
+-------------------
+- bugfix in proxy IP resolution by @spudro228 
+- `rr get` can now skip binary download if version did not change by
+  @drefixs
+- bugfix in `rr init-config` and with linux binary download by
+  @Hunternnm
+- `$_SERVER['REQUEST_URI']` is now being set
+
+v1.4.7 (29.07.2019)
+-------------------
+- added support for H2C over TCP by @Alex-Bond
+
+v1.4.6 (01.07.2019)
+-------------------
+- Worker is not final (to allow mocking)
+- MatricsInterface added
+
+v1.4.5 (27.06.2019)
+-------------------
+- added metrics server with Prometheus backend
+- ability to push metrics from the application
+- expose http service metrics
+- expose limit service metrics
+- expose generic golang metrics
+- HttpClient and Worker marked final
+
+v1.4.4 (25.06.2019)
+-------------------
+- added "headers" service with the ability to specify request, response and CORS headers by @ovr
+- added FastCGI support for HTTP service by @ovr
+- added ability to include multiple config files using `include` directive in the configuration
+
+v1.4.3 (03.06.2019)
+-------------------
+- fixed dependency with Zend Diactoros by @dkuhnert 
+- minor refactoring of error reporting by @lda
+
+v1.4.2 (22.05.2019)
+-------------------
+- bugfix: incorrect RPC method for stop command
+- bugfix: incorrect archive extension in /vendor/bin/rr get on linux machines
+
+v1.4.1 (15.05.2019)
+-------------------
+- constrain service renamed to "limit" to equalize the definition with sample config
+
+v1.4.0 (05.05.2019)
+-------------------
+- launch of official website https://roadrunner.dev/
+- ENV variables in configs (automatic RR_ mapping and manual definition using "${ENV_NAME}" value)
+- the ability to safely remove the worker from the pool in runtime
+- minor performance improvements
+- `real ip` resolution using X-Real-Ip and X-Forwarded-For (+cidr verification) 
+- automatic worker lifecycle manager (controller, see [sample config](https://github.com/spiral/roadrunner/blob/master/.rr.yaml))
+   - maxMemory (graceful stop)
+   - ttl (graceful stop)
+   - idleTTL (graceful stop)
+   - execTTL (brute, max_execution_time)   
+- the ability to stop rr using `rr stop`
+- `maxRequest` option has been deprecated in favor of `maxRequestSize`
+- `/vendor/bin/rr get` to download rr server binary (symfony/console) by @Alex-Bond
+- `/vendor/bin/rr init` to init rr config by @Alex-Bond
+- quick builds are no longer supported
+- PSR-12
+- strict_types=1 added to all php files
+
+v1.3.7 (21.03.2019)
+-------------------
+- bugfix: Request field ordering with same names #136 
+
+v1.3.6 (21.03.2019)
+-------------------
+- bugfix: pool did not wait for slow workers to complete while running concurrent load with http:reset command being invoked
+
+v1.3.5 (14.02.2019)
+-------------------
+- new console flag `l` to define log formatting
+    * **color|default** - colorized output
+    * **plain**         - disable all colorization
+    * **json**          - output as json
+- new console flag `w` to specify work dir
+- added ability to work without config file when at least one `overwrite` option has been specified
+- pool config now sets `numWorkers` equal to number of cores by default (this section can be omitted now)
+
+v1.3.4 (02.02.2019)
+-------------------
+- bugfix: invalid content type detection for urlencoded form requests with custom encoding by @Alex-Bond
+
+v1.3.3 (31.01.2019)
+-------------------
+- added HttpClient for faster integrations with non PSR-7 frameworks by @Alex-Bond
+
+v1.3.2 (11.01.2019)
+-------------------
+- `_SERVER` now exposes headers with HTTP_ prefix (fixing Lravel integration) by @Alex-Bond
+- fixed bug causing body payload not being received for custom HTTP methods by @Alex-Bond 
+
+v1.3.1 (11.01.2019)
+-------------------
+- fixed bug causing static_pool crash when multiple reset requests received at the same time
+- added `always` directive to static service config to always service files of specific extension
+- added `vendor/bin/rr-build` command to easier compile custom RoadRunner builds 
+
+v1.3.0 (05.01.2019)
+-------------------
+- added support for zend/diactros 1.0 and 2.0
+- removed `http-interop/http-factory-diactoros`
+- added `strict_types=1`
+- added elapsed time into debug log
+- ability to redefine config via flags (example: `rr serve -v -d -o http.workers.pool.numWorkers=1`)
+- fixed bug causing child processes die before parent rr (annoying error on windows "worker exit status ....")
+- improved stop sequence and graceful exit
+- `env.Environment` has been spitted into `env.Setter` and `env.Getter`
+- added `env.Copy` method
+- config management has been moved out from root command into `utils`
+- spf13/viper dependency has been bumped up to 1.3.1
+- more tests
+- new travis configuration
+
+v1.2.8 (26.12.2018)
+-------------------
+- bugfix #76 error_log redirect has been disabled after `http:reset` command
+
+v1.2.7 (20.12.2018)
+-------------------
+- #67 bugfix, invalid protocol version while using HTTP/2 with new http-interop by @bognerf
+- #66 added HTTP_USER_AGENT value and tests for it
+- typo fix in static service by @Alex-Bond
+- added PHP 7.3 to travis
+- less ambiguous error when invalid data found in a pipe(`invalid prefix (checksum)` => `invalid data found in the buffer (possible echo)`)
+
+v1.2.6 (18.10.2018)
+-------------------
+- bugfix: ignored `stopping` value during http server shutdown
+- debug log now split message into individual lines
+
+v1.2.5 (13.10.2018)
+------
+- decoupled from Zend Diactoros via PSR-17 factory (by @1ma)
+- `Verbose` flag for cli renamed to `verbose` (by @ruudk)
+- bugfix: HTTP protocol version mismatch on PHP end
+
+v1.2.4 (30.09.2018)
+------
+- minor performance improvements (reduced number of syscalls)
+- worker factory connection is now exposed to PHP using RR_RELAY env
+- HTTPS support
+- HTTP/2 and HTTP/2 Support
+- Removed `disable` flag of static service
+
+v1.2.3 (29.09.2018)
+------
+- reduced verbosity
+- worker list has been extracted from http service and now available for other rr based services
+- built using Go 1.11
+
+v1.2.2 (23.09.2018)
+------
+- new project directory structure
+- introduces DefaultsConfig, allows to keep config files smaller
+- better worker pool destruction while working with long running processes
+- added more php versions to travis config
+- `Spiral\RoadRunner\Exceptions\RoadRunnerException` is marked as deprecated in favor of `Spiral\RoadRunner\Exception\RoadRunnerException`
+- improved test coverage
+
+v1.2.1 (21.09.2018)
+------
+- added RR_HTTP env variable to php processes run under http service
+- bugfix: ignored `--config` option
+- added shorthand for config `-c`
+- rr now changes working dir to the config location (allows relating paths for php scripts)
+
+v1.2.0 (10.09.2018)
+-------
+- added an ability to request `*logrus.Logger`, `logrus.StdLogger`, `logrus.FieldLogger` dependency
+in container
+- added ability to set env values using `env.Environment`
+- `env.Provider` renamed to `env.Environment`
+- rr does not throw a warning when service config is missing, instead debug level is used
+- rr server config now support default value set (shorter configs)
+- debug handlers have been moved from root command and now can be defined for each service separately
+- bugfix: panic when using debug mode without http service registered
+- `rr.Verbose` and `rr.Debug`is not public
+- rpc service now exposes it's addressed to underlying workers to simplify the connection
+- env service construction has been simplified in order to unify it with other services
+- more tests
+
+v1.1.1 (26.07.2018)
+-------
+- added support for custom env variables
+- added env service
+- added env provider to provide ability to define env variables from any source
+- container can resolve values by interface now
+
+v1.1.0 (08.07.2018)
+-------
+- bugfix: Wrong values for $_SERVER['REQUEST_TIME'] and $_SERVER['REQUEST_TIME_FLOAT']
+- rr now resolves remoteAddr (IP-address)
+- improvements in the error buffer
+- support for custom configs and dependency injection for services
+- support for net/http native middlewares
+- better debugger
+- config pre-processing now allows seconds for http service timeouts
+- support for non-serving services
+
+v1.0.5 (30.06.2018)
+-------
+- docker compatible logging (forcing TTY output for logrus)
+
+v1.0.4 (25.06.2018)
+-------
+- changes in server shutdown sequence
+
+v1.0.3 (23.06.2018)
+-------
+- rr would provide error log from workers in realtime now
+- even better service shutdown
+- safer unix socket allocation
+- minor CS
+
+v1.0.2 (19.06.2018)
+-------
+- more validations for user configs
+
+v1.0.1 (15.06.2018)
+-------
+- Makefile added
+
+v1.0.0 (14.06.2018)
+------
+- higher performance
+- worker.State.Updated() has been removed in order to improve overall performance
+- staticPool can automatically replace workers killed from outside
+- server would not attempt to rebuild static pool in case of reoccurring failure
+- PSR-7 server
+- file uploads
+- service container and plugin based model
+- RPC server
+- better control over worker state, move events
+- static files server
+- hot code reload, interactive workers console
+- support for future streaming responses
+- much higher tests coverage
+- less dependencies
+- yaml/json configs (thx viper)
+- CLI application server
+- middleware and event listeners support
+- psr7 library for php