92 lines
2.9 KiB
Go
92 lines
2.9 KiB
Go
package main
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import (
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"flag"
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"os"
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"github.com/moby/buildkit/client/llb"
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"github.com/moby/buildkit/util/system"
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)
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type buildOpt struct {
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withContainerd bool
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containerd string
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runc string
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}
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func main() {
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var opt buildOpt
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flag.BoolVar(&opt.withContainerd, "with-containerd", true, "enable containerd worker")
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flag.StringVar(&opt.containerd, "containerd", "v1.1.0", "containerd version")
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flag.StringVar(&opt.runc, "runc", "dd56ece8236d6d9e5bed4ea0c31fe53c7b873ff4", "runc version")
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flag.Parse()
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bk := buildkit(opt)
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out := bk.Run(llb.Shlex("ls -l /bin")) // debug output
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dt, err := out.Marshal(llb.LinuxAmd64)
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if err != nil {
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panic(err)
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}
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llb.WriteTo(dt, os.Stdout)
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}
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func goBuildBase() llb.State {
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goAlpine := llb.Image("docker.io/library/golang:1.10-alpine")
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return goAlpine.
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AddEnv("PATH", "/usr/local/go/bin:"+system.DefaultPathEnv).
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AddEnv("GOPATH", "/go").
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Run(llb.Shlex("apk add --no-cache g++ linux-headers")).
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Run(llb.Shlex("apk add --no-cache git libseccomp-dev make")).Root()
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}
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func runc(version string) llb.State {
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return goBuildBase().
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Run(llb.Shlex("git clone https://github.com/opencontainers/runc.git /go/src/github.com/opencontainers/runc")).
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Dir("/go/src/github.com/opencontainers/runc").
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Run(llb.Shlexf("git checkout -q %s", version)).
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Run(llb.Shlex("go build -o /usr/bin/runc ./")).Root()
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}
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func containerd(version string) llb.State {
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return goBuildBase().
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Run(llb.Shlex("apk add --no-cache btrfs-progs-dev")).
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Run(llb.Shlex("git clone https://github.com/containerd/containerd.git /go/src/github.com/containerd/containerd")).
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Dir("/go/src/github.com/containerd/containerd").
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Run(llb.Shlexf("git checkout -q %s", version)).
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Run(llb.Shlex("make bin/containerd")).Root()
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}
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func buildkit(opt buildOpt) llb.State {
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src := goBuildBase().
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Run(llb.Shlex("git clone https://github.com/moby/buildkit.git /go/src/github.com/moby/buildkit")).
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Dir("/go/src/github.com/moby/buildkit")
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buildkitdOCIWorkerOnly := src.
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Run(llb.Shlex("go build -o /bin/buildkitd.oci_only -tags no_containerd_worker ./cmd/buildkitd"))
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buildkitd := src.
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Run(llb.Shlex("go build -o /bin/buildkitd ./cmd/buildkitd"))
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buildctl := src.
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Run(llb.Shlex("go build -o /bin/buildctl ./cmd/buildctl"))
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r := llb.Image("docker.io/library/alpine:latest")
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r = copy(buildctl.Root(), "/bin/buildctl", r, "/bin/")
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r = copy(runc(opt.runc), "/usr/bin/runc", r, "/bin/")
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if opt.withContainerd {
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r = copy(containerd(opt.containerd), "/go/src/github.com/containerd/containerd/bin/containerd", r, "/bin/")
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r = copy(buildkitd.Root(), "/bin/buildkitd", r, "/bin/")
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} else {
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r = copy(buildkitdOCIWorkerOnly.Root(), "/bin/buildkitd.oci_only", r, "/bin/")
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}
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return r
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}
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func copy(src llb.State, srcPath string, dest llb.State, destPath string) llb.State {
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cpImage := llb.Image("docker.io/library/alpine:latest")
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cp := cpImage.Run(llb.Shlexf("cp -a /src%s /dest%s", srcPath, destPath))
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cp.AddMount("/src", src)
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return cp.AddMount("/dest", dest)
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}
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