# simple main
KO_DOCKER_REPO=zengxu ko build --platform linux/amd64,linux/arm64 -B -t `<tag>`
# cmd style
KOCACHE=/tmp/ko KO_DOCKER_REPO=zengxu ko build --platform linux/amd64 qiniu.com/dora-cloud/next/app/application-controller
change base image --> KO_DEFAULTBASEIMAGE