Proposal: flag to list bake targets #1072
Description
Atm the bake definition needs to be opened to find out available targets. This is not practical and should be available through the cli.
Suggest to add a --targets or --list flag for bake cmd that would list the available targets.
Targets would need a description field to be displayed:
variable "GO_VERSION" {
default = "1.17"
}
target "_common" {
args = {
GO_VERSION = GO_VERSION
}
}
target "lint" {
description = "Validate using golangci-lint and yamllint linters"
inherits = ["_common"]
dockerfile = "./hack/dockerfiles/lint.Dockerfile"
output = ["type=cacheonly"]
}
target "test" {
description = "Runs tests suite"
inherits = ["_common"]
target = "test-coverage"
output = ["./coverage"]
}
target "binaries" {
description = "Build binaries for the current platform"
inherits = ["_common"]
target = "binaries"
output = ["./bin"]
platforms = ["local"]
}
target "binaries-cross" {
description = "Build binaries for multi platform"
inherits = ["binaries"]
platforms = [
"darwin/amd64",
"darwin/arm64",
"linux/amd64",
"linux/arm/v6",
"linux/arm/v7",
"linux/arm64",
"linux/ppc64le",
"linux/riscv64",
"linux/s390x",
"windows/amd64",
"windows/arm64"
]
}$ docker buildx bake --list
lint: Validate using golangci-lint and yamllint linters
test: Runs tests suite
binaries: Build binaries for the current platform
binaries-cross: Build binaries for multi platform
Targets that don't specify a description will not be displayed.
This flag cannot be used if a target is specified.
For compose it might be tricky as there is no such field in the compose spec that we could use. Maybe a comment can work in this case but not supported with JSON format:
# Build binaries for the current platform
target "binaries" {
inherits = ["_common"]
target = "binaries"
output = ["./bin"]
platforms = ["local"]
}services:
binaries: # Build binaries for the current platform
build:
target: binariesOr an extra arg to target:
target "binaries" "Build binaries for the current platform" {
inherits = ["_common"]
target = "binaries"
output = ["./bin"]
platforms = ["local"]
}But again not suitable for a JSON representation as well as a compose file.
Open to suggestions.