kjuulh/dagger
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performance: compile CUE client side

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Restructured the compile logic to happen on the CLI instead of the
BuildKit frontend.

- Avoid uploading the entire workspace to BuildKit on every compilation
- Let the CUE loader scan the files instead of going through the
  BuildKit filesystem gRPC APIs.

Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>
This commit is contained in:
Andrea Luzzardi 2021-08-20 15:52:58 +02:00
parent 18c4978f07
commit b8dcc02bb8
9 changed files with 125 additions and 190 deletions
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5
client/client.go
View File

@ -177,11 +177,6 @@ func (c *Client) buildfn(ctx context.Context, st *state.State, env *environment.
NoCache: c.cfg.NoCache,
})
lg.Debug().Msg("loading configuration")
if err := env.LoadPlan(ctx, s); err != nil {
return nil, err
}
// Compute output overlay
if fn != nil {
if err := fn(ctx, env, s); err != nil {

27
cmd/dagger/cmd/compute.go
View File

@ -170,7 +170,25 @@ var computeCmd = &cobra.Command{
cl := common.NewClient(ctx)
err := cl.Do(ctx, st, func(ctx context.Context, env *environment.Environment, s solver.Solver) error {
v := compiler.NewValue()
plan, err := st.CompilePlan(ctx)
if err != nil {
lg.Fatal().Err(err).Msg("failed to compile plan")
}
if err := v.FillPath(cue.MakePath(), plan); err != nil {
lg.Fatal().Err(err).Msg("failed to compile plan")
}
inputs, err := st.CompileInputs()
if err != nil {
lg.Fatal().Err(err).Msg("failed to compile inputs")
}
if err := v.FillPath(cue.MakePath(), inputs); err != nil {
lg.Fatal().Err(err).Msg("failed to compile inputs")
}
err = cl.Do(ctx, st, func(ctx context.Context, env *environment.Environment, s solver.Solver) error {
// check that all inputs are set
checkInputs(ctx, env)
@ -178,13 +196,6 @@ var computeCmd = &cobra.Command{
return err
}
v := compiler.NewValue()
if err := v.FillPath(cue.MakePath(), env.Plan()); err != nil {
return err
}
if err := v.FillPath(cue.MakePath(), env.Input()); err != nil {
return err
}
if err := v.FillPath(cue.MakePath(), env.Computed()); err != nil {
return err
}

2
cmd/dagger/cmd/doc.go
View File

@ -318,7 +318,7 @@ func loadCode(packageName string) (*compiler.Value, error) {
stdlib.Path: stdlib.FS,
}
src, err := compiler.Build(sources, packageName)
src, err := compiler.Build("/config", sources, packageName)
if err != nil {
return nil, err
}

34
cmd/dagger/cmd/query.go
View File

@ -1,15 +1,12 @@
package cmd
import (
"context"
"fmt"
"cuelang.org/go/cue"
"go.dagger.io/dagger/cmd/dagger/cmd/common"
"go.dagger.io/dagger/cmd/dagger/logger"
"go.dagger.io/dagger/compiler"
"go.dagger.io/dagger/environment"
"go.dagger.io/dagger/solver"
"github.com/spf13/cobra"
"github.com/spf13/viper"
@ -45,28 +42,27 @@ var queryCmd = &cobra.Command{
doneCh := common.TrackWorkspaceCommand(ctx, cmd, workspace, state)
cl := common.NewClient(ctx)
cueVal := compiler.NewValue()
err := cl.Do(ctx, state, func(ctx context.Context, env *environment.Environment, s solver.Solver) error {
if !viper.GetBool("no-plan") {
if err := cueVal.FillPath(cue.MakePath(), env.Plan()); err != nil {
return err
plan, err := state.CompilePlan(ctx)
if err != nil {
lg.Fatal().Err(err).Msg("failed to compile plan")
}
if err := cueVal.FillPath(cue.MakePath(), plan); err != nil {
lg.Fatal().Err(err).Msg("failed to compile plan")
}
}
if !viper.GetBool("no-input") {
if err := cueVal.FillPath(cue.MakePath(), env.Input()); err != nil {
return err
}
}
return nil
})
<-doneCh
inputs, err := state.CompileInputs()
if err != nil {
lg.Fatal().Err(err).Msg("failed to query environment")
lg.Fatal().Err(err).Msg("failed to compile inputs")
}
if err := cueVal.FillPath(cue.MakePath(), inputs); err != nil {
lg.Fatal().Err(err).Msg("failed to compile inputs")
}
}
if !viper.GetBool("no-computed") && state.Computed != "" {
@ -79,6 +75,8 @@ var queryCmd = &cobra.Command{
}
}
<-doneCh
cueVal = cueVal.LookupPath(cuePath)
if viper.GetBool("concrete") {
@ -98,7 +96,7 @@ var queryCmd = &cobra.Command{
case "json":
fmt.Println(cueVal.JSON().PrettyString())
case "yaml":
lg.Fatal().Err(err).Msg("yaml format not yet implemented")
lg.Fatal().Msg("yaml format not yet implemented")
case "text":
out, err := cueVal.String()
if err != nil {

9
compiler/build.go
View File

@ -12,19 +12,16 @@ import (
)
// Build a cue configuration tree from the files in fs.
func Build(sources map[string]fs.FS, args ...string) (*Value, error) {
func Build(src string, overlays map[string]fs.FS, args ...string) (*Value, error) {
c := DefaultCompiler
buildConfig := &cueload.Config{
// The CUE overlay needs to be prefixed by a non-conflicting path with the
// local filesystem, otherwise Cue will merge the Overlay with whatever Cue
// files it finds locally.
Dir: "/config",
Dir: src,
Overlay: map[string]cueload.Source{},
}
// Map the source files into the overlay
for mnt, f := range sources {
for mnt, f := range overlays {
f := f
mnt := mnt
err := fs.WalkDir(f, ".", func(p string, entry fs.DirEntry, err error) error {

139
environment/environment.go
View File

@ -3,7 +3,6 @@ package environment
import (
"context"
"fmt"
"io/fs"
"strings"
"time"
@ -29,33 +28,38 @@ type Environment struct {
// Layer 2: user inputs
input *compiler.Value
// plan + inputs
src *compiler.Value
// Layer 3: computed values
computed *compiler.Value
}
func New(st *state.State) (*Environment, error) {
var err error
e := &Environment{
state: st,
plan: compiler.NewValue(),
input: compiler.NewValue(),
computed: compiler.NewValue(),
}
// Prepare inputs
for key, input := range st.Inputs {
v, err := input.Compile(key, st)
e.plan, err = st.CompilePlan(context.TODO())
if err != nil {
return nil, err
}
if key == "" {
err = e.input.FillPath(cue.MakePath(), v)
} else {
err = e.input.FillPath(cue.ParsePath(key), v)
}
e.input, err = st.CompileInputs()
if err != nil {
return nil, err
}
e.computed = compiler.NewValue()
e.src = compiler.NewValue()
if err := e.src.FillPath(cue.MakePath(), e.plan); err != nil {
return nil, err
}
if err := e.src.FillPath(cue.MakePath(), e.input); err != nil {
return nil, err
}
return e, nil
@ -65,64 +69,10 @@ func (e *Environment) Name() string {
return e.state.Name
}
func (e *Environment) Plan() *compiler.Value {
return e.plan
}
func (e *Environment) Input() *compiler.Value {
return e.input
}
func (e *Environment) Computed() *compiler.Value {
return e.computed
}
// LoadPlan loads the plan
func (e *Environment) LoadPlan(ctx context.Context, s solver.Solver) error {
tr := otel.Tracer("environment")
ctx, span := tr.Start(ctx, "environment.LoadPlan")
defer span.End()
// FIXME: universe vendoring
// This is already done on `dagger init` and shouldn't be done here too.
// However:
// 1) As of right now, there's no way to update universe through the
// CLI, so we are lazily updating on `dagger up` using the embedded `universe`
// 2) For backward compatibility: if the workspace was `dagger
// init`-ed before we added support for vendoring universe, it might not
// contain a `cue.mod`.
if err := e.state.VendorUniverse(ctx); err != nil {
return err
}
planSource, err := e.state.Source().Compile("", e.state)
if err != nil {
return err
}
p := NewPipeline(planSource, s).WithCustomName("[internal] source")
// execute updater script
if err := p.Run(ctx); err != nil {
return err
}
// Build a Cue config by overlaying the source with the stdlib
sources := map[string]fs.FS{
"/": p.FS(),
}
args := []string{}
if pkg := e.state.Plan.Package; pkg != "" {
args = append(args, pkg)
}
plan, err := compiler.Build(sources, args...)
if err != nil {
return fmt.Errorf("plan config: %w", compiler.Err(err))
}
e.plan = plan
return nil
}
// Scan all scripts in the environment for references to local directories (do:"local"),
// and return all referenced directory names.
// This is used by clients to grant access to local directories when they are referenced
@ -168,59 +118,34 @@ func (e *Environment) LocalDirs() map[string]string {
localdirs(v.Lookup("#up"))
}
// 2. Scan the plan
plan, err := e.state.Source().Compile("", e.state)
if err != nil {
panic(err)
}
localdirs(plan)
return dirs
}
// prepare initializes the Environment with inputs and plan code
func (e *Environment) prepare(ctx context.Context) (*compiler.Value, error) {
tr := otel.Tracer("environment")
_, span := tr.Start(ctx, "environment.Prepare")
defer span.End()
// Reset the computed values
e.computed = compiler.NewValue()
src := compiler.NewValue()
if err := src.FillPath(cue.MakePath(), e.plan); err != nil {
return nil, err
}
if err := src.FillPath(cue.MakePath(), e.input); err != nil {
return nil, err
}
return src, nil
}
// Up missing values in environment configuration, and write them to state.
func (e *Environment) Up(ctx context.Context, s solver.Solver) error {
tr := otel.Tracer("environment")
ctx, span := tr.Start(ctx, "environment.Up")
defer span.End()
// Set user inputs and plan code
src, err := e.prepare(ctx)
if err != nil {
return err
}
// Orchestrate execution with cueflow
flow := cueflow.New(
&cueflow.Config{},
src.Cue(),
e.src.Cue(),
newTaskFunc(newPipelineRunner(e.computed, s)),
)
if err := flow.Run(ctx); err != nil {
return err
}
// FIXME: canceling the context makes flow return `nil`
// Check explicitly if the context is canceled.
select {
case <-ctx.Done():
return ctx.Err()
default:
return nil
}
}
type DownOpts struct{}
@ -328,20 +253,18 @@ func (e *Environment) ScanInputs(ctx context.Context, mergeUserInputs bool) ([]*
src := e.plan
if mergeUserInputs {
// Set user inputs and plan code
var err error
src, err = e.prepare(ctx)
if err != nil {
return nil, err
}
src = e.src
}
return ScanInputs(ctx, src), nil
}
func (e *Environment) ScanOutputs(ctx context.Context) ([]*compiler.Value, error) {
src, err := e.prepare(ctx)
if err != nil {
src := compiler.NewValue()
if err := src.FillPath(cue.MakePath(), e.plan); err != nil {
return nil, err
}
if err := src.FillPath(cue.MakePath(), e.input); err != nil {
return nil, err
}

26
environment/environment_test.go
View File

@ -1,26 +0,0 @@
package environment
import (
"testing"
"github.com/stretchr/testify/require"
"go.dagger.io/dagger/state"
)
func TestLocalDirs(t *testing.T) {
st := &state.State{
Path: "/tmp/source",
Plan: state.Plan{
Module: "/tmp/source/plan",
},
}
require.NoError(t, st.SetInput("www.source", state.DirInput("/", []string{}, []string{})))
environment, err := New(st)
require.NoError(t, err)
localdirs := environment.LocalDirs()
require.Len(t, localdirs, 2)
require.Contains(t, localdirs, "/")
require.Contains(t, localdirs, "/tmp/source/plan")
}

6
environment/inputs_scan.go
View File

@ -4,7 +4,6 @@ import (
"context"
"cuelang.org/go/cue"
"github.com/rs/zerolog/log"
"go.dagger.io/dagger/compiler"
)
@ -43,13 +42,11 @@ func isReference(val cue.Value) bool {
}
func ScanInputs(ctx context.Context, value *compiler.Value) []*compiler.Value {
lg := log.Ctx(ctx)
inputs := []*compiler.Value{}
value.Walk(
func(val *compiler.Value) bool {
if isReference(val.Cue()) {
lg.Debug().Str("value.Path", val.Path().String()).Msg("found reference, stop walk")
return false
}
@ -57,7 +54,6 @@ func ScanInputs(ctx context.Context, value *compiler.Value) []*compiler.Value {
return true
}
lg.Debug().Str("value.Path", val.Path().String()).Msg("found input")
inputs = append(inputs, val)
return true
@ -68,7 +64,6 @@ func ScanInputs(ctx context.Context, value *compiler.Value) []*compiler.Value {
}
func ScanOutputs(ctx context.Context, value *compiler.Value) []*compiler.Value {
lg := log.Ctx(ctx)
inputs := []*compiler.Value{}
value.Walk(
@ -77,7 +72,6 @@ func ScanOutputs(ctx context.Context, value *compiler.Value) []*compiler.Value {
return true
}
lg.Debug().Str("value.Path", val.Path().String()).Msg("found output")
inputs = append(inputs, val)
return true

47
state/state.go
View File

@ -3,6 +3,9 @@ package state
import (
"context"
"path"
"cuelang.org/go/cue"
"go.dagger.io/dagger/compiler"
)
// Contents of an environment serialized to a file
@ -29,13 +32,53 @@ type State struct {
}
// Cue module containing the environment plan
func (s *State) Source() Input {
func (s *State) CompilePlan(ctx context.Context) (*compiler.Value, error) {
w := s.Workspace
// FIXME: backward compatibility
if mod := s.Plan.Module; mod != "" {
w = path.Join(w, mod)
}
return DirInput(w, []string{}, []string{})
// FIXME: universe vendoring
// This is already done on `dagger init` and shouldn't be done here too.
// However:
// 1) As of right now, there's no way to update universe through the
// CLI, so we are lazily updating on `dagger up` using the embedded `universe`
// 2) For backward compatibility: if the workspace was `dagger
// init`-ed before we added support for vendoring universe, it might not
// contain a `cue.mod`.
if err := vendorUniverse(ctx, w); err != nil {
return nil, err
}
args := []string{}
if pkg := s.Plan.Package; pkg != "" {
args = append(args, pkg)
}
return compiler.Build(w, nil, args...)
}
func (s *State) CompileInputs() (*compiler.Value, error) {
v := compiler.NewValue()
// Prepare inputs
for key, input := range s.Inputs {
i, err := input.Compile(key, s)
if err != nil {
return nil, err
}
if key == "" {
err = v.FillPath(cue.MakePath(), i)
} else {
err = v.FillPath(cue.ParsePath(key), i)
}
if err != nil {
return nil, err
}
}
return v, nil
}
// VendorUniverse vendors the latest (built-in) version of the universe into the