driver: make buildkitd "config" and "flags" names consistent

build/build.go

@@ -252,17 +252,21 @@ func toSolveOpt(ctx context.Context, node builder.Node, multiDriver bool, opt Op
 			attests[k] = *v
 		}
 	}
-	supportsAttestations := bopts.LLBCaps.Contains(apicaps.CapID("exporter.image.attestations")) && nodeDriver.Features(ctx)[driver.MultiPlatform]
+
+	supportAttestations := bopts.LLBCaps.Contains(apicaps.CapID("exporter.image.attestations")) && nodeDriver.Features(ctx)[driver.MultiPlatform]
 	if len(attests) > 0 {
-		if !supportsAttestations {
-			return nil, nil, errors.Errorf("attestations are not supported by the current buildkitd")
+		if !supportAttestations {
+			if !nodeDriver.Features(ctx)[driver.MultiPlatform] {
+				return nil, nil, notSupported("Attestation", nodeDriver, "https://docs.docker.com/go/attestations/")
+			}
+			return nil, nil, errors.Errorf("Attestations are not supported by the current BuildKit daemon")
 		}
 		for k, v := range attests {
 			so.FrontendAttrs["attest:"+k] = v
 		}
 	}
 
-	if _, ok := opt.Attests["provenance"]; !ok && supportsAttestations {
+	if _, ok := opt.Attests["provenance"]; !ok && supportAttestations {
 		const noAttestEnv = "BUILDX_NO_DEFAULT_ATTESTATIONS"
 		var noProv bool
 		if v, ok := os.LookupEnv(noAttestEnv); ok {

builder/builder.go

@@ -332,16 +332,16 @@ func GetBuilders(dockerCli command.Cli, txn *store.Txn) ([]*Builder, error) {
 }
 
 type CreateOpts struct {
-	Name       string
-	Driver     string
-	NodeName   string
-	Platforms  []string
-	Flags      string
-	ConfigFile string
-	DriverOpts []string
-	Use        bool
-	Endpoint   string
-	Append     bool
+	Name                string
+	Driver              string
+	NodeName            string
+	Platforms           []string
+	BuildkitdFlags      string
+	BuildkitdConfigFile string
+	DriverOpts          []string
+	Use                 bool
+	Endpoint            string
+	Append              bool
 }
 
 func Create(ctx context.Context, txn *store.Txn, dockerCli command.Cli, opts CreateOpts) (*Builder, error) {
@@ -429,11 +429,11 @@ func Create(ctx context.Context, txn *store.Txn, dockerCli command.Cli, opts Cre
 		}
 	}
 
-	var flags []string
-	if opts.Flags != "" {
-		flags, err = shlex.Split(opts.Flags)
+	var buildkitdFlags []string
+	if opts.BuildkitdFlags != "" {
+		buildkitdFlags, err = shlex.Split(opts.BuildkitdFlags)
 		if err != nil {
-			return nil, errors.Wrap(err, "failed to parse buildkit flags")
+			return nil, errors.Wrap(err, "failed to parse BuildKit daemon flags")
 		}
 	}
 
@@ -493,21 +493,21 @@ func Create(ctx context.Context, txn *store.Txn, dockerCli command.Cli, opts Cre
 		setEp = false
 	}
 
-	m, err := csvToMap(opts.DriverOpts)
+	driverOpts, err := csvToMap(opts.DriverOpts)
 	if err != nil {
 		return nil, err
 	}
 
-	configFile := opts.ConfigFile
-	if configFile == "" {
-		// if buildkit config is not provided, check if the default one is
-		// available and use it
+	buildkitdConfigFile := opts.BuildkitdConfigFile
+	if buildkitdConfigFile == "" {
+		// if buildkit daemon config is not provided, check if the default one
+		// is available and use it
 		if f, ok := confutil.DefaultConfigFile(dockerCli); ok {
-			configFile = f
+			buildkitdConfigFile = f
 		}
 	}
 
-	if err := ng.Update(opts.NodeName, ep, opts.Platforms, setEp, opts.Append, flags, configFile, m); err != nil {
+	if err := ng.Update(opts.NodeName, ep, opts.Platforms, setEp, opts.Append, buildkitdFlags, buildkitdConfigFile, driverOpts); err != nil {
 		return nil, err
 	}
 

builder/node.go

@@ -142,7 +142,7 @@ func (b *Builder) LoadNodes(ctx context.Context, opts ...LoadNodesOption) (_ []N
 					}
 				}
 
-				d, err := driver.GetDriver(ctx, "buildx_buildkit_"+n.Name, factory, n.Endpoint, dockerapi, imageopt.Auth, kcc, n.Flags, n.Files, n.DriverOpts, n.Platforms, b.opts.contextPathHash, lno.dialMeta)
+				d, err := driver.GetDriver(ctx, "buildx_buildkit_"+n.Name, factory, n.Endpoint, dockerapi, imageopt.Auth, kcc, n.BuildkitdFlags, n.Files, n.DriverOpts, n.Platforms, b.opts.contextPathHash, lno.dialMeta)
 				if err != nil {
 					node.Err = err
 					return nil
@@ -217,33 +217,33 @@ func (n *Node) MarshalJSON() ([]byte, error) {
 		pp = append(pp, platforms.Format(p))
 	}
 	return json.Marshal(struct {
-		Name        string
-		Endpoint    string
-		Flags       []string           `json:",omitempty"`
-		DriverOpts  map[string]string  `json:",omitempty"`
-		Files       map[string][]byte  `json:",omitempty"`
-		Status      string             `json:",omitempty"`
-		ProxyConfig map[string]string  `json:",omitempty"`
-		Version     string             `json:",omitempty"`
-		Err         string             `json:",omitempty"`
-		IDs         []string           `json:",omitempty"`
-		Platforms   []string           `json:",omitempty"`
-		GCPolicy    []client.PruneInfo `json:",omitempty"`
-		Labels      map[string]string  `json:",omitempty"`
+		Name           string
+		Endpoint       string
+		BuildkitdFlags []string           `json:"Flags,omitempty"`
+		DriverOpts     map[string]string  `json:",omitempty"`
+		Files          map[string][]byte  `json:",omitempty"`
+		Status         string             `json:",omitempty"`
+		ProxyConfig    map[string]string  `json:",omitempty"`
+		Version        string             `json:",omitempty"`
+		Err            string             `json:",omitempty"`
+		IDs            []string           `json:",omitempty"`
+		Platforms      []string           `json:",omitempty"`
+		GCPolicy       []client.PruneInfo `json:",omitempty"`
+		Labels         map[string]string  `json:",omitempty"`
 	}{
-		Name:        n.Name,
-		Endpoint:    n.Endpoint,
-		Flags:       n.Flags,
-		DriverOpts:  n.DriverOpts,
-		Files:       n.Files,
-		Status:      status,
-		ProxyConfig: n.ProxyConfig,
-		Version:     n.Version,
-		Err:         nerr,
-		IDs:         n.IDs,
-		Platforms:   pp,
-		GCPolicy:    n.GCPolicy,
-		Labels:      n.Labels,
+		Name:           n.Name,
+		Endpoint:       n.Endpoint,
+		BuildkitdFlags: n.BuildkitdFlags,
+		DriverOpts:     n.DriverOpts,
+		Files:          n.Files,
+		Status:         status,
+		ProxyConfig:    n.ProxyConfig,
+		Version:        n.Version,
+		Err:            nerr,
+		IDs:            n.IDs,
+		Platforms:      pp,
+		GCPolicy:       n.GCPolicy,
+		Labels:         n.Labels,
 	})
 }
 

commands/create.go

@@ -16,17 +16,17 @@ import (
 )
 
 type createOptions struct {
-	name         string
-	driver       string
-	nodeName     string
-	platform     []string
-	actionAppend bool
-	actionLeave  bool
-	use          bool
-	flags        string
-	configFile   string
-	driverOpts   []string
-	bootstrap    bool
+	name                string
+	driver              string
+	nodeName            string
+	platform            []string
+	actionAppend        bool
+	actionLeave         bool
+	use                 bool
+	driverOpts          []string
+	buildkitdFlags      string
+	buildkitdConfigFile string
+	bootstrap           bool
 	// upgrade      bool // perform upgrade of the driver
 }
 
@@ -51,16 +51,16 @@ func runCreate(ctx context.Context, dockerCli command.Cli, in createOptions, arg
 	}
 
 	b, err := builder.Create(ctx, txn, dockerCli, builder.CreateOpts{
-		Name:       in.name,
-		Driver:     in.driver,
-		NodeName:   in.nodeName,
-		Platforms:  in.platform,
-		Flags:      in.flags,
-		ConfigFile: in.configFile,
-		DriverOpts: in.driverOpts,
-		Use:        in.use,
-		Endpoint:   ep,
-		Append:     in.actionAppend,
+		Name:                in.name,
+		Driver:              in.driver,
+		NodeName:            in.nodeName,
+		Platforms:           in.platform,
+		DriverOpts:          in.driverOpts,
+		BuildkitdFlags:      in.buildkitdFlags,
+		BuildkitdConfigFile: in.buildkitdConfigFile,
+		Use:                 in.use,
+		Endpoint:            ep,
+		Append:              in.actionAppend,
 	})
 	if err != nil {
 		return err
@@ -106,12 +106,16 @@ func createCmd(dockerCli command.Cli) *cobra.Command {
 	flags.StringVar(&options.name, "name", "", "Builder instance name")
 	flags.StringVar(&options.driver, "driver", "", fmt.Sprintf("Driver to use (available: %s)", drivers.String()))
 	flags.StringVar(&options.nodeName, "node", "", "Create/modify node with given name")
-	flags.StringVar(&options.flags, "buildkitd-flags", "", "Flags for buildkitd daemon")
-	flags.StringVar(&options.configFile, "config", "", "BuildKit config file")
 	flags.StringArrayVar(&options.platform, "platform", []string{}, "Fixed platforms for current node")
 	flags.StringArrayVar(&options.driverOpts, "driver-opt", []string{}, "Options for the driver")
-	flags.BoolVar(&options.bootstrap, "bootstrap", false, "Boot builder after creation")
+	flags.StringVar(&options.buildkitdFlags, "buildkitd-flags", "", "BuildKit daemon flags")
+
+	// we allow for both "--config" and "--buildkitd-config", although the latter is the recommended way to avoid ambiguity.
+	flags.StringVar(&options.buildkitdConfigFile, "buildkitd-config", "", "BuildKit daemon config file")
+	flags.StringVar(&options.buildkitdConfigFile, "config", "", "BuildKit daemon config file")
+	flags.MarkHidden("config")
 
+	flags.BoolVar(&options.bootstrap, "bootstrap", false, "Boot builder after creation")
 	flags.BoolVar(&options.actionAppend, "append", false, "Append a node to builder instead of changing it")
 	flags.BoolVar(&options.actionLeave, "leave", false, "Remove a node from builder instead of changing it")
 	flags.BoolVar(&options.use, "use", false, "Set the current builder instance")

commands/inspect.go

@@ -84,11 +84,11 @@ func runInspect(ctx context.Context, dockerCli command.Cli, in inspectOptions) e
 				fmt.Fprintf(w, "Error:\t%s\n", err.Error())
 			} else {
 				fmt.Fprintf(w, "Status:\t%s\n", nodes[i].DriverInfo.Status)
-				if len(n.Flags) > 0 {
-					fmt.Fprintf(w, "Flags:\t%s\n", strings.Join(n.Flags, " "))
+				if len(n.BuildkitdFlags) > 0 {
+					fmt.Fprintf(w, "BuildKit daemon flags:\t%s\n", strings.Join(n.BuildkitdFlags, " "))
 				}
 				if nodes[i].Version != "" {
-					fmt.Fprintf(w, "Buildkit:\t%s\n", nodes[i].Version)
+					fmt.Fprintf(w, "BuildKit version:\t%s\n", nodes[i].Version)
 				}
 				platforms := platformutil.FormatInGroups(n.Node.Platforms, n.Platforms)
 				if len(platforms) > 0 {

commands/rm.go

@@ -112,7 +112,7 @@ func rmCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
 
 	flags := cmd.Flags()
 	flags.BoolVar(&options.keepState, "keep-state", false, "Keep BuildKit state")
-	flags.BoolVar(&options.keepDaemon, "keep-daemon", false, "Keep the buildkitd daemon running")
+	flags.BoolVar(&options.keepDaemon, "keep-daemon", false, "Keep the BuildKit daemon running")
 	flags.BoolVar(&options.allInactive, "all-inactive", false, "Remove all inactive builders")
 	flags.BoolVarP(&options.force, "force", "f", false, "Do not prompt for confirmation")
 

docs/reference/buildx_build.md

@@ -154,7 +154,7 @@ Allow extra privileged entitlement. List of entitlements:
 - `security.insecure` - Allows executions without sandbox. See
   [related Dockerfile extensions](https://docs.docker.com/reference/dockerfile/#run---securitysandbox).
 
-For entitlements to be enabled, the `buildkitd` daemon also needs to allow them
+For entitlements to be enabled, the BuildKit daemon also needs to allow them
 with `--allow-insecure-entitlement` (see [`create --buildkitd-flags`](buildx_create.md#buildkitd-flags)).
 
 ```console

docs/reference/buildx_create.md

@@ -9,19 +9,19 @@ Create a new builder instance
 
 ### Options
 
-| Name                                    | Type          | Default | Description                                                           |
-|:----------------------------------------|:--------------|:--------|:----------------------------------------------------------------------|
-| [`--append`](#append)                   |               |         | Append a node to builder instead of changing it                       |
-| `--bootstrap`                           |               |         | Boot builder after creation                                           |
-| [`--buildkitd-flags`](#buildkitd-flags) | `string`      |         | Flags for buildkitd daemon                                            |
-| [`--config`](#config)                   | `string`      |         | BuildKit config file                                                  |
-| [`--driver`](#driver)                   | `string`      |         | Driver to use (available: `docker-container`, `kubernetes`, `remote`) |
-| [`--driver-opt`](#driver-opt)           | `stringArray` |         | Options for the driver                                                |
-| [`--leave`](#leave)                     |               |         | Remove a node from builder instead of changing it                     |
-| [`--name`](#name)                       | `string`      |         | Builder instance name                                                 |
-| [`--node`](#node)                       | `string`      |         | Create/modify node with given name                                    |
-| [`--platform`](#platform)               | `stringArray` |         | Fixed platforms for current node                                      |
-| [`--use`](#use)                         |               |         | Set the current builder instance                                      |
+| Name                                      | Type          | Default | Description                                                           |
+|:------------------------------------------|:--------------|:--------|:----------------------------------------------------------------------|
+| [`--append`](#append)                     |               |         | Append a node to builder instead of changing it                       |
+| `--bootstrap`                             |               |         | Boot builder after creation                                           |
+| [`--buildkitd-config`](#buildkitd-config) | `string`      |         | BuildKit daemon config file                                           |
+| [`--buildkitd-flags`](#buildkitd-flags)   | `string`      |         | BuildKit daemon flags                                                 |
+| [`--driver`](#driver)                     | `string`      |         | Driver to use (available: `docker-container`, `kubernetes`, `remote`) |
+| [`--driver-opt`](#driver-opt)             | `stringArray` |         | Options for the driver                                                |
+| [`--leave`](#leave)                       |               |         | Remove a node from builder instead of changing it                     |
+| [`--name`](#name)                         | `string`      |         | Builder instance name                                                 |
+| [`--node`](#node)                         | `string`      |         | Create/modify node with given name                                    |
+| [`--platform`](#platform)                 | `stringArray` |         | Fixed platforms for current node                                      |
+| [`--use`](#use)                           |               |         | Set the current builder instance                                      |
 
 
 <!---MARKER_GEN_END-->
@@ -55,29 +55,15 @@ $ docker buildx create --name eager_beaver --append mycontext2
 eager_beaver
 ```
 
-### <a name="buildkitd-flags"></a> Specify options for the buildkitd daemon (--buildkitd-flags)
+### <a name="buildkitd-config"></a> Specify a configuration file for the BuildKit daemon (--buildkitd-config)
 
 ```text
---buildkitd-flags FLAGS
-```
-
-Adds flags when starting the buildkitd daemon. They take precedence over the
-configuration file specified by [`--config`](#config). See `buildkitd --help`
-for the available flags.
-
-```text
---buildkitd-flags '--debug --debugaddr 0.0.0.0:6666'
-```
-
-### <a name="config"></a> Specify a configuration file for the buildkitd daemon (--config)
-
-```text
---config FILE
+--buildkitd-config FILE
 ```
 
-Specifies the configuration file for the buildkitd daemon to use. The configuration
-can be overridden by [`--buildkitd-flags`](#buildkitd-flags).
-See an [example buildkitd configuration file](https://github.com/moby/buildkit/blob/master/docs/buildkitd.toml.md).
+Specifies the configuration file for the BuildKit daemon to use. The
+configuration can be overridden by [`--buildkitd-flags`](#buildkitd-flags).
+See an [example BuildKit daemon configuration file](https://github.com/moby/buildkit/blob/master/docs/buildkitd.toml.md).
 
 If you don't specify a configuration file, Buildx looks for one by default in:
 
@@ -90,6 +76,20 @@ certificates for registries in the `buildkitd.toml` configuration, the files
 will be copied into the container under `/etc/buildkit/certs` and configuration
 will be updated to reflect that.
 
+### <a name="buildkitd-flags"></a> Specify options for the BuildKit daemon (--buildkitd-flags)
+
+```text
+--buildkitd-flags FLAGS
+```
+
+Adds flags when starting the BuildKit daemon. They take precedence over the
+configuration file specified by [`--buildkitd-config`](#buildkitd-config). See
+`buildkitd --help` for the available flags.
+
+```text
+--buildkitd-flags '--debug --debugaddr 0.0.0.0:6666'
+```
+
 ### <a name="driver"></a> Set the builder driver to use (--driver)
 
 ```text
@@ -133,8 +133,8 @@ to achieve that.
 
 #### `remote` driver
 
-Uses a remote instance of buildkitd over an arbitrary connection. With this
-driver, you manually create and manage instances of buildkit yourself, and
+Uses a remote instance of BuildKit daemon over an arbitrary connection. With
+this driver, you manually create and manage instances of buildkit yourself, and
 configure buildx to point at it.
 
 Unlike `docker` driver, built images will not automatically appear in

docs/reference/buildx_rm.md

@@ -14,7 +14,7 @@ Remove one or more builder instances
 | [`--all-inactive`](#all-inactive)   |          |         | Remove all inactive builders             |
 | [`--builder`](#builder)             | `string` |         | Override the configured builder instance |
 | [`-f`](#force), [`--force`](#force) |          |         | Do not prompt for confirmation           |
-| [`--keep-daemon`](#keep-daemon)     |          |         | Keep the buildkitd daemon running        |
+| [`--keep-daemon`](#keep-daemon)     |          |         | Keep the BuildKit daemon running         |
 | [`--keep-state`](#keep-state)       |          |         | Keep BuildKit state                      |
 
 
@@ -48,10 +48,10 @@ Do not prompt for confirmation before removing inactive builders.
 $ docker buildx rm --all-inactive --force
 ```
 
-### <a name="keep-daemon"></a> Keep the buildkitd daemon running (--keep-daemon)
+### <a name="keep-daemon"></a> Keep the BuildKit daemon running (--keep-daemon)
 
 Keep the BuildKit daemon running after the buildx context is removed. This is
-useful when you manage buildkitd daemons and buildx contexts independently.
+useful when you manage BuildKit daemons and buildx contexts independently.
 Only supported by the
 [`docker-container`](https://docs.docker.com/build/drivers/docker-container/)
 and [`kubernetes`](https://docs.docker.com/build/drivers/kubernetes/) drivers.