/
buildpacks_builder.go
289 lines (240 loc) · 7.46 KB
/
buildpacks_builder.go
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package imgsrc
import (
"context"
"fmt"
"io"
"os"
packclient "github.com/buildpacks/pack/pkg/client"
projectTypes "github.com/buildpacks/pack/pkg/project/types"
"github.com/pkg/errors"
"github.com/superfly/flyctl/internal/cmdfmt"
"github.com/superfly/flyctl/internal/metrics"
"github.com/superfly/flyctl/internal/tracing"
"github.com/superfly/flyctl/iostreams"
"github.com/superfly/flyctl/terminal"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/trace"
)
type buildpacksBuilder struct{}
func (*buildpacksBuilder) Name() string {
return "Buildpacks"
}
func returnTrue(s string) bool {
return true
}
func (*buildpacksBuilder) Run(ctx context.Context, dockerFactory *dockerClientFactory, streams *iostreams.IOStreams, opts ImageOptions, build *build) (*DeploymentImage, string, error) {
ctx, span := tracing.GetTracer().Start(ctx, "buildpacks_builder", trace.WithAttributes(opts.ToSpanAttributes()...))
defer span.End()
build.BuildStart()
if !dockerFactory.mode.IsAvailable() {
note := "docker daemon not available, skipping"
span.AddEvent(note)
terminal.Debug(note)
build.BuildFinish()
return nil, note, nil
}
if opts.Builder == "" {
note := "no buildpack builder configured, skipping"
terminal.Debug(note)
span.AddEvent(note)
build.BuildFinish()
return nil, note, nil
}
builder := opts.Builder
buildpacks := opts.Buildpacks
span.SetAttributes(attribute.StringSlice("buildpacks", buildpacks))
span.SetAttributes(attribute.String("builder", builder))
build.BuilderInitStart()
docker, err := dockerFactory.buildFn(ctx, build)
if err != nil {
build.BuilderInitFinish()
build.BuildFinish()
return nil, "", err
}
defer docker.Close() // skipcq: GO-S2307
defer clearDeploymentTags(ctx, docker, opts.Tag)
packClient, err := packclient.NewClient(packclient.WithDockerClient(docker), packclient.WithLogger(newPackLogger(streams.Out)))
if err != nil {
build.BuilderInitFinish()
build.BuildFinish()
tracing.RecordError(span, err, "failed to create packet client")
return nil, "", err
}
build.BuilderInitFinish()
build.ImageBuildStart()
serverInfo, err := docker.Info(ctx)
if err != nil {
tracing.RecordError(span, err, "failed to fetch docker server info")
terminal.Debug("error fetching docker server info:", err)
} else {
build.SetBuilderMetaPart2(false, serverInfo.ServerVersion, fmt.Sprintf("%s/%s/%s", serverInfo.OSType, serverInfo.Architecture, serverInfo.OSVersion))
}
cmdfmt.PrintBegin(streams.ErrOut, "Building image with Buildpacks")
msg := fmt.Sprintf("docker host: %s %s %s", serverInfo.ServerVersion, serverInfo.OSType, serverInfo.Architecture)
cmdfmt.PrintDone(streams.ErrOut, msg)
span.AddEvent(msg)
build.ContextBuildStart()
excludes, err := readDockerignore(opts.WorkingDir, opts.IgnorefilePath, "")
if err != nil {
tracing.RecordError(span, err, "error reading .dockerignore")
build.ContextBuildFinish()
build.BuildFinish()
return nil, "", errors.Wrap(err, "error reading .dockerignore")
}
build.ContextBuildFinish()
if opts.BuildpacksDockerHost != "" {
cmdfmt.PrintDone(streams.ErrOut, fmt.Sprintf("buildpacks docker host: %v", opts.BuildpacksDockerHost))
}
if len(opts.BuildpacksVolumes) > 0 {
cmdfmt.PrintDone(streams.ErrOut, fmt.Sprintf("buildpacks volumes: %+v", opts.BuildpacksVolumes))
}
buildCtx, buildSpan := tracing.GetTracer().Start(ctx, "build_image",
trace.WithAttributes(opts.ToSpanAttributes()...),
trace.WithAttributes(
attribute.String("type", "buildpack"),
attribute.Bool("is_remote", dockerFactory.IsRemote()),
),
)
var gid = -1
var uid = -1
err = packClient.Build(buildCtx, packclient.BuildOptions{
AppPath: opts.WorkingDir,
Builder: builder,
ClearCache: opts.NoCache,
Image: newCacheTag(opts.AppName),
DockerHost: opts.BuildpacksDockerHost,
Buildpacks: buildpacks,
Env: normalizeBuildArgs(opts.BuildArgs),
UserID: uid,
GroupID: gid,
TrustBuilder: returnTrue,
AdditionalTags: []string{opts.Tag},
ProjectDescriptor: projectTypes.Descriptor{
Build: projectTypes.Build{
Exclude: excludes,
},
},
ContainerConfig: packclient.ContainerConfig{
Volumes: opts.BuildpacksVolumes,
},
})
build.ImageBuildFinish()
build.BuildFinish()
if err != nil {
if dockerFactory.IsRemote() {
buildSpan.AddEvent("bad build caused by remote builder failure")
metrics.SendNoData(ctx, "remote_builder_failure")
}
buildSpan.SetAttributes(attribute.Bool("is_remote", dockerFactory.IsRemote()))
tracing.RecordError(buildSpan, err, "failed to build image")
buildSpan.End()
return nil, "", err
}
buildSpan.End()
cmdfmt.PrintDone(streams.ErrOut, "Building image done")
if opts.Publish {
build.PushStart()
cmdfmt.PrintBegin(streams.ErrOut, "Pushing image to fly")
if err := pushToFly(ctx, docker, streams, opts.Tag); err != nil {
build.PushFinish()
return nil, "", err
}
build.PushFinish()
cmdfmt.PrintDone(streams.ErrOut, "Pushing image done")
}
img, err := findImageWithDocker(ctx, docker, opts.Tag)
if err != nil {
return nil, "", err
}
if img == nil {
tracing.RecordError(span, err, "no image found")
return nil, "", fmt.Errorf("no image found")
}
di := DeploymentImage{
ID: img.ID,
Tag: opts.Tag,
Size: img.Size,
}
span.SetAttributes(di.ToSpanAttributes()...)
return &di, "", nil
}
func normalizeBuildArgs(buildArgs map[string]string) map[string]string {
out := map[string]string{}
for k, v := range buildArgs {
out[k] = v
}
return out
}
func newPackLogger(out io.Writer) *packLogger {
// pack blocks writes to the underlying writer for it's lifetime.
// we need to use it too, so instead of giving pack stdout/stderr
// give it a burner writer that we pipe to the target
packR, packW := io.Pipe()
go func() {
io.Copy(out, packR)
defer packR.Close()
}()
return &packLogger{
w: &fdWrapper{
Writer: packW,
src: out,
},
debug: os.Getenv("LOG_LEVEL") == "debug",
}
}
type packLogger struct {
w io.Writer
debug bool
}
func (l *packLogger) Debug(msg string) {
if !l.debug {
return
}
fmt.Fprint(l.w, cmdfmt.AppendMissingLineFeed(msg))
}
func (l *packLogger) Debugf(format string, v ...interface{}) {
if !l.debug {
return
}
fmt.Fprint(l.w, cmdfmt.AppendMissingLineFeed(fmt.Sprintf(format, v...)))
}
func (l *packLogger) Info(msg string) {
fmt.Fprint(l.w, cmdfmt.AppendMissingLineFeed(msg))
}
func (l *packLogger) Infof(format string, v ...interface{}) {
fmt.Fprint(l.w, cmdfmt.AppendMissingLineFeed(fmt.Sprintf(format, v...)))
}
func (l *packLogger) Warn(msg string) {
fmt.Fprint(l.w, cmdfmt.AppendMissingLineFeed(msg))
}
func (l *packLogger) Warnf(format string, v ...interface{}) {
fmt.Fprint(l.w, cmdfmt.AppendMissingLineFeed(fmt.Sprintf(format, v...)))
}
func (l *packLogger) Error(msg string) {
fmt.Fprint(l.w, cmdfmt.AppendMissingLineFeed(msg))
}
func (l *packLogger) Errorf(format string, v ...interface{}) {
fmt.Fprint(l.w, cmdfmt.AppendMissingLineFeed(fmt.Sprintf(format, v...)))
}
func (l *packLogger) Writer() io.Writer {
return l.w
}
func (l *packLogger) IsVerbose() bool {
return l.debug
}
// fdWrapper creates an io.Writer wrapper that writes to one Writer but reads Fd from another.
// this is used so we can pass the correct Fd through for terminal detection while
// still writing to our piped writer
type fdWrapper struct {
io.Writer
src io.Writer
}
type fdWriter interface {
Fd() uintptr
}
func (w *fdWrapper) Fd() uintptr {
if fd, ok := w.src.(fdWriter); ok {
return fd.Fd()
}
return ^(uintptr(0))
}