rwynn/monstache-builder-cache-rel6 is not available for arm64

[jschmied]

compiling with amd64 version leads to a plugin producing:

Unable to load mapper plugin /tmp/plugin/xxx.so: plugin: not implemented

putting

GOARCH=arm64 GOOS=linux

into monstache/docker/plugin/Dockerfile leads to errors in build:

[8/8] RUN GOARCH=arm64 GOOS=linux go build -buildmode=plugin -o xxx.so xxx.go:
18.04 # command-line-arguments
18.04 loadinternal: cannot find runtime/cgo
18.04 /usr/local/go/pkg/tool/linux_amd64/link: running gcc failed: exit status 1
18.04 collect2: fatal error: cannot find 'ld'
18.04 compilation terminated.

adding CGO_ENABLED=1 to the line ends up with:

9.332 gcc_arm64.S: Assembler messages:
9.332 gcc_arm64.S:30: Error: no such instruction: `stp x29,x30,[sp,'

using GOS=darwin also does not work:

[8/8] RUN CGO_ENABLED=1 GOARCH=arm64 GOOS=darwin go build -buildmode=plugin -o xxx.so xxx.go:
4.058 # runtime/cgo
4.058 gcc: error: unrecognized command-line option '-arch'

did anybody succeed building on M3 mac?