Sandbox for testing golang plugins
You can find more explanations here: https://medium.com/@alperkose/things-to-avoid-while-using-golang-plugins-f34c0a636e8
Running ./run.sh will build the plugins and the main application using docker. The base image for building and running are by default golang:1.11. But you may pass different versions as the first parameter: ./run.sh 1.10
When you run the shell script you should see an output like:
# Go version
------------
go version go1.11.2 linux/amd64
# Running with non-vendored implementation
------------------------------------------
Name: Jon Snow
Email jon.snow@nightwatch.org
# Running with implementation in different gopath
-------------------------------------------------
panic: plugin.Open("differentgopath.plugin"): plugin was built with a different version of package github.com/alperkose/golangplugins/user
goroutine 1 [running]:
main.main()
/go/src/github.com/alperkose/golangplugins/main.go:17 +0x3a4
# Running with vendored implementation
--------------------------------------
panic: interface conversion: plugin.Symbol is func() user.Provider, not func() user.Provider (types from different scopes)
goroutine 1 [running]:
main.main()
/go/src/github.com/alperkose/golangplugins/main.go:24 +0x384
- plugins must be built with the same version of the Go toolchain as the main application
- your plugin needs to be built from a main package
go build -o plugin.so -buildmode=plugin .
- GOPATH for plugins and the actual system should be the same
- Code for the plugin and the actual system should not use vendor folders (at least for the common packages)