buildah and golang

See merge request !31

fix golang builder

See merge request !30

fix(go): set goproxy before installing packages

See merge request !29

dockerfile to buf

See merge request !28

fix(golang-builder): include go-acc, remove qshell

See merge request !26

build smaller operator-sdk to speed up pulling

See merge request !25

include testbin in operator sdk

See merge request !24

operator sdk

See merge request !15

explicit helm version

See merge request !23

# Conflicts:
#   builders/helm/Dockerfile

explicy helm version

See merge request !22

helm image

See merge request !21

protoc: use google.golang.org/protobuf

See merge request !19

include grpc-python in protoc

See merge request !18

include go-grpc in protoc

See merge request !17

protoc compiler

See merge request !16

node builder image

See merge request !13

speed up multi-stage building

See merge request !12