Build plugin

Use musl-libc build plugin

Because the default vc-scheduler base image is alpine, which only has musl-libc, so we should use musl-gcc to build the plugin.

Build the plugin in Docker:

# You may need run this command at the root path of the project, cause this need the go.mod file.
docker run -v `pwd`:/volcano golang:1.20-alpine sh -c "cd /volcano && apk add musl-dev gcc && go build -buildmode=plugin -o example/custom-plugin/magic.so example/custom-plugin/magic.go"

Build the plugin in local:

# install musl
wget http://musl.libc.org/releases/musl-1.2.1.tar.gz
tar -xf musl-1.2.1.tar.gz && cd musl-1.2.1
./configure
make && sudo make install

# build plugin
CC=/usr/local/musl/bin/musl-gcc CGO_ENABLED=1 go build -buildmode=plugin magic.go

Use gnu-libc build plugin

If you want to use ubuntu as base image, you can use gnu-libc to build the plugin. Since most Linux OS have gnu-libc, you can just build the plugin in local.

# default CC is gcc
CGO_ENABLED=1 go build -buildmode=plugin magic.go