124 lines
3.2 KiB
Go
124 lines
3.2 KiB
Go
package main
|
|
|
|
import (
|
|
"context"
|
|
"flag"
|
|
"os"
|
|
|
|
"github.com/moby/buildkit/client/llb"
|
|
"github.com/moby/buildkit/util/system"
|
|
)
|
|
|
|
type buildOpt struct {
|
|
buildkit string
|
|
containerd string
|
|
runc string
|
|
withContainerd bool
|
|
}
|
|
|
|
func main() {
|
|
var opt buildOpt
|
|
flag.BoolVar(&opt.withContainerd, "with-containerd", true, "enable containerd worker")
|
|
flag.StringVar(&opt.containerd, "containerd", "v1.2.9", "containerd version")
|
|
flag.StringVar(&opt.runc, "runc", "v1.0.0-rc8", "runc version")
|
|
flag.StringVar(&opt.buildkit, "buildkit", "master", "buildkit version")
|
|
flag.Parse()
|
|
|
|
bk := buildkit(opt)
|
|
out := bk
|
|
dt, err := out.Marshal(context.TODO(), llb.LinuxAmd64)
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
llb.WriteTo(dt, os.Stdout)
|
|
}
|
|
|
|
func goBuildBase() llb.State {
|
|
goAlpine := llb.Image("docker.io/library/golang:1.16-alpine")
|
|
return goAlpine.
|
|
AddEnv("PATH", "/usr/local/go/bin:"+system.DefaultPathEnvUnix).
|
|
AddEnv("GOPATH", "/go").
|
|
Run(llb.Shlex("apk add --no-cache g++ linux-headers libseccomp-dev make")).Root()
|
|
}
|
|
|
|
func goRepo(s llb.State, repo string, src llb.State) func(ro ...llb.RunOption) llb.State {
|
|
dir := "/go/src/" + repo
|
|
return func(ro ...llb.RunOption) llb.State {
|
|
es := s.Dir(dir).Run(ro...)
|
|
es.AddMount(dir, src, llb.Readonly)
|
|
return es.AddMount("/out", llb.Scratch())
|
|
}
|
|
}
|
|
|
|
func runc(version string) llb.State {
|
|
repo := "github.com/opencontainers/runc"
|
|
src := llb.Git(repo, version)
|
|
if version == "local" {
|
|
src = llb.Local("runc-src")
|
|
}
|
|
return goRepo(goBuildBase(), repo, src)(
|
|
llb.Shlex("go build -o /out/runc ./"),
|
|
)
|
|
}
|
|
|
|
func containerd(version string) llb.State {
|
|
repo := "github.com/containerd/containerd"
|
|
src := llb.Git(repo, version, llb.KeepGitDir())
|
|
if version == "local" {
|
|
src = llb.Local("containerd-src")
|
|
}
|
|
return goRepo(
|
|
goBuildBase().
|
|
Run(llb.Shlex("apk add --no-cache btrfs-progs-dev")).Root(),
|
|
repo, src)(
|
|
llb.Shlex("go build -o /out/containerd ./cmd/containerd"),
|
|
)
|
|
}
|
|
|
|
func buildkit(opt buildOpt) llb.State {
|
|
repo := "github.com/moby/buildkit"
|
|
src := llb.Git(repo, opt.buildkit)
|
|
if opt.buildkit == "local" {
|
|
src = llb.Local("buildkit-src")
|
|
}
|
|
run := goRepo(goBuildBase(), repo, src)
|
|
|
|
buildkitdOCIWorkerOnly := run(llb.Shlex("go build -o /out/buildkitd.oci_only -tags no_containerd_worker ./cmd/buildkitd"))
|
|
|
|
buildkitd := run(llb.Shlex("go build -o /out/buildkitd ./cmd/buildkitd"))
|
|
|
|
buildctl := run(llb.Shlex("go build -o /out/buildctl ./cmd/buildctl"))
|
|
|
|
r := llb.Scratch().With(
|
|
copyAll(buildctl, "/"),
|
|
copyAll(runc(opt.runc), "/"),
|
|
)
|
|
|
|
if opt.withContainerd {
|
|
return r.With(
|
|
copyAll(containerd(opt.containerd), "/"),
|
|
copyAll(buildkitd, "/"))
|
|
}
|
|
return r.With(copyAll(buildkitdOCIWorkerOnly, "/"))
|
|
}
|
|
|
|
func copyAll(src llb.State, destPath string) llb.StateOption {
|
|
return copyFrom(src, "/.", destPath)
|
|
}
|
|
|
|
// copyFrom has similar semantics as `COPY --from`
|
|
func copyFrom(src llb.State, srcPath, destPath string) llb.StateOption {
|
|
return func(s llb.State) llb.State {
|
|
return copy(src, srcPath, s, destPath)
|
|
}
|
|
}
|
|
|
|
// copy copies files between 2 states using cp
|
|
func copy(src llb.State, srcPath string, dest llb.State, destPath string) llb.State {
|
|
return dest.File(llb.Copy(src, srcPath, destPath, &llb.CopyInfo{
|
|
AllowWildcard: true,
|
|
AttemptUnpack: true,
|
|
CreateDestPath: true,
|
|
}))
|
|
}
|