about summary refs log tree commit homepage
path: root/bin/unicorn
DateCommit message (Collapse)
2018-09-21Support default_middleware configuration option
This allows for the equivalent of the -N/--no-default_middleware command line option to be specified in the configuration file so it doesn't need to be specified on the command line every time unicorn is executed. It explicitly excludes the use of -N/--no-default_middleware as an embedded configuration option in the rackup file, by ignoring the options after ARGV is parsed. In order to allow the configuration method to work, have the lambda that Unicorn.builder returns accept two arguments. Technically, only one argument is needed for the HttpServer instance, but I'm guessing if the lambda accepts a single argument, we expect that to be a rack application instead of a lambda that returns a rack application. The command line option option to disable default middleware will take precedence over the unicorn configuration file option if both are present. For backwards compatibility, if the lambda passed to HttpServer accepts 0 arguments, then call it without arguments. [ew: fix precedence for arity checking in build_app! configurator: ensure -N is respected when set in command-line]
2015-04-07favor more string literals for cold call sites
Literal regexps cost over 450 bytes of memory per-site and unnecessary use of them costs memory in places where raw execution speed does not matter. Nowadays, we can rely on String#end_with? (introduced in 1.8.7) for improved readability, too.
2013-11-01bin/*: enforce -p/--port argument to be a valid integer
Users may confuse '-p' with the (to-be-deprecated) '-P/--pid' option, leading to surprising behavior if a pathname is passed as a port, because String#to_i would convert it to zero, causing: TCPServer.new(host, port = 0) to bind to a random, unused port.
2013-01-29Add -N or --no-default-middleware option.
This would prevent Unicorn from adding default middleware, as if RACK_ENV were always none. (not development nor deployment) This should also be applied to `rainbows' and `zbatery' as well. One of the reasons to add this is to avoid conflicting RAILS_ENV and RACK_ENV. It would be helpful in the case where a Rails application and Rack application are composed together, while we want Rails app runs under development and Rack app runs under none (if we don't want those default middleware), and we don't really want to make RAILS_ENV set to development and RACK_ENV to none because it might be confusing. Note that Rails would also look into RACK_ENV. Another reason for this is that only `rackup' would be inserting those default middleware. Both `thin' and `puma' would not do this, nor does Rack::Handler.get.run which is used in Sinatra. So using this option would make it work differently from `rackup' but somehow more similar to `thin' or `puma'. Discussion thread on the mailing list: http://rubyforge.org/pipermail/mongrel-unicorn/2013-January/001675.html Signed-off-by: Eric Wong <normalperson@yhbt.net>
2011-06-15memory reductions in worker process
There's absolutely no need to keep the OptionParser around in worker processes.
2011-06-11runtime stack size reductions
This reduces the size of `caller` by 5 frames, which should make backtraces easier-to-read, raising exceptions less expensive, and reduce GC runtime.
2011-04-13fix some 1.9.3dev warnings
2010-10-06bin/unicorn: show "RACK_ENV" in --help
It's more descriptive as to what environment we're setting than "ENVIRONMENT".
2010-08-30remove nasty ugly hacks at startup
These nasty hacks were breaking Rubinius compatibility. This can be further cleaned up, too.
2010-08-24bin/*: more consistent --help output
This fixes a long-standing bug in the output of "unicorn_rails" where the program name was missing.
2010-06-10respect "working_directory" wrt config.ru
Since we added support for the "working_directory" parameter, it often became unclear where/when certain paths would be bound. There are some extremely nasty dependencies and ordering issues when doing this. It's all pretty fragile, but works for now and we even have a full integration test to keep it working. I plan on cleaning this up 2.x.x to be less offensive to look at (Rainbows! and Zbatery are a bit tied to this at the moment). Thanks to Pierre Baillet for reporting this. ref: http://mid.gmane.org/AANLkTimKb7JARr_69nfVrJLvMZH3Gvs1o_KwZFLKfuxy@mail.gmail.com
2010-04-08bin/*: remove unnecessary listeners variable
2010-02-28bin/*: remove redundant $DEBUG check
2010-02-28put switch parsing for config.ru into Unicorn.builder
This lets us reuse code for Zbatery and Rainbows!, too.
2010-02-18Unicorn::builder to wrap our Rack::Builder usage
This should make it easier to reuse code in derivative servers like Rainbows! and Zbatery. Unfortunately, we can't depend on Rack::Builder/Rack::Server yet since Rack 1.1 just got them and notable frameworks (like Rails 2.3.x) do not fully work with Rack 1.1 yet). This also fixes subtle issue with config.ru files that could have variables that conflict with the Unicorn-specific namespace (this bug still affects "unicorn_rails", which could use some reworking as well).
2009-12-26exit with failure if master dies when daemonized
This behavior change also means our grandparent (launched from a controlling terminal or script) will wait until the master process is ready before returning. Thanks to IƱaki Baz Castillo for the initial implementations and inspiration.
2009-12-25bin/*: shebangs should be educational
2009-11-18Do not expand paths given on the shell
Shells already expand '~' before the executables see it, and relative paths inside symlinks can get set incorrectly to the actual directory name, and not the (usually desired) symlink name for things like Capistrano. Since our paths are now unexpanded, we must now check the "working_directory" directive and raise an error if the user specifies the config file in a way that makes the config file unreloadable.
2009-11-04bin/unicorn: allow RACK_ENV to be passed from parent
This makes our RACK_ENV handling like our RAILS_ENV handling for unicorn_rails, removing the redundant local variable.
2009-11-03bin/unicorn: set ENV["RACK_ENV"] on startup
Although not currently part of the Rack specification, ENV["RACK_ENV"] is at least a de facto standard. Some of the popular Rack servers (Thin, Passenger) and frameworks (Merb, Sinatra) already set or use it. ML-Ref: <C7A9411D-CD40-4DA4-9CB3-6AA959D2D127@larsen.st> Acked-by: Eric Wong <normalperson@yhbt.net> [ew: setenv always, not just on CLI + commit message]
2009-09-17launchers: deprecate ambiguous -P/--p* switches
`unicorn` tries to mimic `rackup` on the command-line to ease adoption. `unicorn_rails` tries to be somewhat like `rackup` as well, but then also tries to be consistent with `script/server` resulting some amount of confusion with regard to the -P/(--path|--pid) switch. Outright removal of these switches will probably not happen any time soon because we have command-lines inherited across processes, but we can stop advertising them. Since our (Unicorn) config file format is fortunately consistent between Rails and !Rails, recommend the "pid" directive be used instead. User interfaces are really, really tough to get right...
2009-09-08"encoding: binary" comments for all sources (1.9)
This ensures any string literals that pop up in *our* code will just be a bag of bytes. This shouldn't affect/fix/break existing apps in most cases, but most constants will always have the "correct" encoding (none!) to be consistent with HTTP/socket expectations. Since this comment affects things only on a per-source basis, it won't affect existing apps with the exception of strings we pass to the Rack application. This will eventually allow us to get rid of that Unicorn::Z constant, too.
2009-08-15Remove explicit requires for Rack things
Rack is autoload-based and so are we.
2009-08-15Make launchers __END__-aware
I've noticed rackup has been __END__-aware as of 7b6046b764eafd332b3b2d9d93b3915c425fae54 in Rack upstream
2009-04-02unicorn: remove unnecessary lambda generation
We can get by with one less lambda in the loader
2009-03-30bin/*: parse CLI switches in config.ru sooner
This allows config.ru to specify listener and stuff before we setup the application.
2009-03-29Fix default listener setup
Combining command-line and config file options in a reasonable manner has and always will be a painful experience.
2009-03-19start libifying common launcher code
The daemonization logic between unicorn and unicorn_rails scripts can definitely be shared. Again: our daemonization logic is slightly non-standard since our executables are designed to run in APP_ROOT/RAILS_ROOT and not "/" like "normal" UNIX daemons.
2009-03-09Add -s/--server switch for compatibility with rackup
This allows config.ru files to be shared by rackup and unicorn without errors.
2009-03-09Revert "Remove -P/--pid switch from CLI"
This reverts commit 4414d9bf34f162a604d2aacc765ab1ca2fc90404.
2009-03-09Revert "exec: disable embedded switch parsing in config.ru"
This reverts commit e66ab79b8b5bc5311c750bf03868a7b2574f4ea1. Conflicts: bin/unicorn
2009-03-04Remove "directory" config option
Unicorn will always continue to run in the directory it started in, it does not chdir to "/". Since the default start_ctx[:cwd] is symlink-aware, this should not be a problem for Capistrano-deployed applications.
2009-03-04Ensure we always try to have a default listener
This is a followup to 11172f9bdcc7c57c9ae857a8088e49527a953fa1
2009-03-03require Rack as late as possible in execution
This allows LOAD_PATH modifications via the command-line (via -I or -rubygems on the command-line).
2009-03-03Allow stderr_path and stdout_path to be set in the config
As opposed to doing this in the shell, this allows the files to be reopened reliably after rotation. While we're at it, use $stderr/$stdout instead of STDERR/STDOUT since they seem to be more favored.
2009-03-03Begin to allow deferred app creation/loading
Some applications do not handle loading before forking out-of-the-box very gracefully, this starts adding support to build the Rack(-ish) application later in the process.
2009-03-03Remove unnecessary separators in help text
Doesn't seem to make a difference for 1.8 but shows up in 1.9...
2009-03-03Remove -P/--pid switch from CLI
It's confusing with the lowercase "-p" option which is more common for developers to use. PID files are only needed for production deployments, and those should be using config files anyways.
2009-03-03test for "unicorn --help" output
Ensure the output fits in a standard ANSI terminal so it's easy to read for all users regardless of what interface they're working from.
2009-03-03exec: disable embedded switch parsing in config.ru
Since not all rackup command-line options can be supported by Unicorn, disable this gross hack to avoid potentially unpredictable or undefined behavior. config.ru will not be able to specify the config file for unicorn-specific options; but the unicorn-specific config files themselves will be allowed to override the default config.ru location.
2009-02-23Allow overriding :directory or via -C/--directory
This allows Unicorn to be constantly started in symlink paths such as the ones Capistrano creates (e.g. "/u/apps/$app/current")
2009-02-21Replace unicorn binary with something rackup-like
This adds a bunch of execution tests that require the "unicorn" binary to be in PATH as well as rack being directly "require"-able ("rubygems" will not be loaded for you). The tester is responsible for setting up PATH and RUBYLIB appropriately.
2009-02-09daemonization by setting UNICORN_DAEMONIZE env
Daemonization only happens once at initial startup and is less intrusive than traditional daemonize routines: we do not chdir, set umask, or redirect/close STDOUT/STDERR since those are doable via other config options with Unicorn (and the Unicorn "config file" is just Ruby). STDIN has no business being open on a daemon (and can be dangerous to close if using certain buggy third-party libs).
2009-02-09Refactor and get exec + FD inheritance working
Along with worker process management. This is nginx-style inplace upgrading (I don't know of another web server that does this). Basically we can preserve our opened listen sockets across entire executable upgrades. Signals: USR2 - Sending USR2 to the master unicorn process will cause it to exec a new master and keep the original workers running. This is useful to validate that the new code changes took place are valid and don't immediately die. Once the changes are validated (manually), you may send QUIT to the original master process to have it gracefully exit. HUP - Sending this to the master will make it immediately exec a new binary and cause the old workers to gracefully exit. Use this if you're certain the latest changes to Unicorn (and your app) are ready and don't need validating. Unlike nginx, re-execing a new binary will pick up any and all configuration changes. However listener sockets cannot be removed when exec-ing; only added (for now). I apologize for making such a big change in one commit, but once I got the ability to replace the entire codebase while preserving connections, it was too tempting to continue working. So I wrote a large chunk of this while hitting the unicorn-hello-world app with the following loop: while curl -vSsfN http://0:8080; do date +%N; done _Zero_ requests lost across multiple restarts.