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rm.go
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rm.go
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package commands
import (
"context"
"fmt"
"time"
"github.com/docker/buildx/store"
"github.com/docker/buildx/store/storeutil"
"github.com/docker/cli/cli"
"github.com/docker/cli/cli/command"
"github.com/moby/buildkit/util/appcontext"
"github.com/pkg/errors"
"github.com/spf13/cobra"
"golang.org/x/sync/errgroup"
)
type rmOptions struct {
builder string
keepState bool
keepDaemon bool
allInactive bool
force bool
}
const (
rmInactiveWarning = `WARNING! This will remove all builders that are not in running state. Are you sure you want to continue?`
)
func runRm(dockerCli command.Cli, in rmOptions) error {
ctx := appcontext.Context()
if in.allInactive && !in.force && !command.PromptForConfirmation(dockerCli.In(), dockerCli.Out(), rmInactiveWarning) {
return nil
}
txn, release, err := storeutil.GetStore(dockerCli)
if err != nil {
return err
}
defer release()
if in.allInactive {
return rmAllInactive(ctx, txn, dockerCli, in)
}
var ng *store.NodeGroup
if in.builder != "" {
ng, err = storeutil.GetNodeGroup(txn, dockerCli, in.builder)
if err != nil {
return err
}
} else {
ng, err = storeutil.GetCurrentInstance(txn, dockerCli)
if err != nil {
return err
}
}
if ng == nil {
return nil
}
ctxbuilders, err := dockerCli.ContextStore().List()
if err != nil {
return err
}
for _, cb := range ctxbuilders {
if ng.Driver == "docker" && len(ng.Nodes) == 1 && ng.Nodes[0].Endpoint == cb.Name {
return errors.Errorf("context builder cannot be removed, run `docker context rm %s` to remove this context", cb.Name)
}
}
err1 := rm(ctx, dockerCli, in, ng)
if err := txn.Remove(ng.Name); err != nil {
return err
}
if err1 != nil {
return err1
}
_, _ = fmt.Fprintf(dockerCli.Err(), "%s removed\n", ng.Name)
return nil
}
func rmCmd(dockerCli command.Cli, rootOpts *rootOptions) *cobra.Command {
var options rmOptions
cmd := &cobra.Command{
Use: "rm [NAME]",
Short: "Remove a builder instance",
Args: cli.RequiresMaxArgs(1),
RunE: func(cmd *cobra.Command, args []string) error {
options.builder = rootOpts.builder
if len(args) > 0 {
if options.allInactive {
return errors.New("cannot specify builder name when --all-inactive is set")
}
options.builder = args[0]
}
return runRm(dockerCli, options)
},
}
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.allInactive, "all-inactive", false, "Remove all inactive builders")
flags.BoolVarP(&options.force, "force", "f", false, "Do not prompt for confirmation")
return cmd
}
func rm(ctx context.Context, dockerCli command.Cli, in rmOptions, ng *store.NodeGroup) error {
dis, err := driversForNodeGroup(ctx, dockerCli, ng, "")
if err != nil {
return err
}
for _, di := range dis {
if di.Driver == nil {
continue
}
// Do not stop the buildkitd daemon when --keep-daemon is provided
if !in.keepDaemon {
if err := di.Driver.Stop(ctx, true); err != nil {
return err
}
}
if err := di.Driver.Rm(ctx, true, !in.keepState, !in.keepDaemon); err != nil {
return err
}
if di.Err != nil {
err = di.Err
}
}
return err
}
func rmAllInactive(ctx context.Context, txn *store.Txn, dockerCli command.Cli, in rmOptions) error {
ctx, cancel := context.WithTimeout(ctx, 20*time.Second)
defer cancel()
ll, err := txn.List()
if err != nil {
return err
}
builders := make([]*nginfo, len(ll))
for i, ng := range ll {
builders[i] = &nginfo{ng: ng}
}
eg, _ := errgroup.WithContext(ctx)
for _, b := range builders {
func(b *nginfo) {
eg.Go(func() error {
if err := loadNodeGroupData(ctx, dockerCli, b); err != nil {
return errors.Wrapf(err, "cannot load %s", b.ng.Name)
}
if b.ng.Dynamic {
return nil
}
if b.inactive() {
rmerr := rm(ctx, dockerCli, in, b.ng)
if err := txn.Remove(b.ng.Name); err != nil {
return err
}
_, _ = fmt.Fprintf(dockerCli.Err(), "%s removed\n", b.ng.Name)
return rmerr
}
return nil
})
}(b)
}
return eg.Wait()
}