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Methods

#user

class Unicorn::Worker

This class and its members can be considered a stable interface and will not change in a backwards-incompatible fashion between releases of unicorn. Knowledge of this class is generally not not needed for most users of unicorn.

Some users may want to access it in the before_fork/after_fork hooks. See the Unicorn::Configurator RDoc for examples.

Public Instance Methods

user (user, group = nil, chroot = false) source

In most cases, you should be using the Unicorn::Configurator#user directive instead. This method should only be used if you need fine-grained control of exactly when you want to change permissions in your after_fork or after_worker_ready hooks, or if you want to use the chroot support.

Changes the worker process to the specified user and group, and chroots to the current working directory if chroot is set. This is only intended to be called from within the worker process from the after_fork hook. This should be called in the after_fork hook after any privileged functions need to be run (e.g. to set per-worker CPU affinity, niceness, etc)

Any and all errors raised within this method will be propagated directly back to the caller (usually the after_fork hook. These errors commonly include ArgumentError for specifying an invalid user/group and Errno::EPERM for insufficient privileges.

chroot support is only available in unicorn 5.3.0+ user and group switching appeared in unicorn 0.94.0 (2009-11-05)


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