An emulation of the linux libc
LD_PRELOAD except for use with Go plugins for
the addition of instrumentation and debugging utilities.
pluginizer is a bit of glue that makes it easier to turn underscore imports
$ go get github.com/Xe/gopreload/cmd/pluginizer $ pluginizer -help Usage of pluginizer: -dest string destination package to generate -pkg string package to underscore import $ pluginizer -pkg github.com/lib/pq -dest github.com/Xe/gopreload/database/postgres To build this plugin: $ go build -buildmode plugin -o /path/to/output.so github.com/Xe/gopreload/database/postgres
I have included plugin boilerplate autogenned versions of the sqlite, postgres and mysql database drivers.
manhole is an example of debugging and introspection tooling that has
been useful when debugging past issues with long-running server processes.
This package assumes that programs run using it are never started with environment
variables that are set by unauthenticated users. Any errors in loading the plugins
will be logged using the standard library logger
log and ignored.
This has about the same security implications as
LD_PRELOAD does in most
Linux distributions, but the risk is minimal compared to the massive benefit for
being able to have arbitrary background services all be able to be dug into using
the same tooling or being able to have metric submission be completely separated
from the backend metric creation. Common logging setup processes can be always
loaded, making the default logger settings into the correct settings.