docker buildx bake

• 配置合并
  • docker-compose.yml
  • docker-compose.yaml
  • docker-bake.json
  • docker-bake.override.json
  • docker-bake.hcl
  • docker-bake.override.hcl
• toplevel
  • target
  • group
  • variable
  • function
• https://docs.docker.com/build/bake/file-definition/

cat << EOF > Dockerfile
FROM wener/base
RUN touch test
EOF
cat << HCL > docker-bake.hcl
target "default" {
  dockerfile = "Dockerfile"
  platforms = ["linux/amd64", "linux/arm64"]
  pull = true
}
HCL

# moby/buildkit:buildx-stable-1
docker context create --use

docker buildx bake

var	for
BAKE_CMD_CONTEXT
BAKE_LOCAL_PLATFORM	当前平台 linux/amd64

使用环境变量作为默认

variable "HOME" {
  default = "$HOME"
}

target "default" {
  ssh = ["default=${HOME}/.ssh/id_rsa"]
}