145 lines
3.5 KiB
Go
145 lines
3.5 KiB
Go
package app
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import (
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"context"
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"fmt"
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"coopcloud.tech/abra/cli/internal"
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appPkg "coopcloud.tech/abra/pkg/app"
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"coopcloud.tech/abra/pkg/autocomplete"
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"coopcloud.tech/abra/pkg/client"
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"coopcloud.tech/abra/pkg/config"
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"coopcloud.tech/abra/pkg/formatter"
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"coopcloud.tech/abra/pkg/log"
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stack "coopcloud.tech/abra/pkg/upstream/stack"
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"github.com/docker/docker/api/types/filters"
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dockerClient "github.com/docker/docker/client"
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"github.com/spf13/cobra"
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)
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var AppUndeployCommand = &cobra.Command{
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Use: "undeploy <app> [flags]",
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Aliases: []string{"un"},
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Short: "Undeploy an app",
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Long: `This does not destroy any application data.
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However, you should remain vigilant, as your swarm installation will consider
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any previously attached volumes as eligible for pruning once undeployed.
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Passing "--prune/-p" does not remove those volumes.`,
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Args: cobra.ExactArgs(1),
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ValidArgsFunction: func(
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cmd *cobra.Command,
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args []string,
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toComplete string) ([]string, cobra.ShellCompDirective) {
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return autocomplete.AppNameComplete()
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},
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Run: func(cmd *cobra.Command, args []string) {
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app := internal.ValidateApp(args)
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stackName := app.StackName()
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cl, err := client.New(app.Server)
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if err != nil {
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log.Fatal(err)
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}
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log.Debugf("checking whether %s is already deployed", stackName)
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deployMeta, err := stack.IsDeployed(context.Background(), cl, stackName)
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if err != nil {
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log.Fatal(err)
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}
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if !deployMeta.IsDeployed {
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log.Fatalf("%s is not deployed?", app.Name)
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}
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chaosVersion := config.CHAOS_DEFAULT
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if deployMeta.IsChaos {
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chaosVersion = deployMeta.ChaosVersion
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}
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toWriteVersion := deployMeta.Version
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if deployMeta.IsChaos {
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toWriteVersion = chaosVersion
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}
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if err := internal.UndeployOverview(
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app,
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deployMeta.Version,
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chaosVersion,
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toWriteVersion,
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); err != nil {
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log.Fatal(err)
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}
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rmOpts := stack.Remove{
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Namespaces: []string{stackName},
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Detach: false,
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}
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if err := stack.RunRemove(context.Background(), cl, rmOpts); err != nil {
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log.Fatal(err)
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}
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if prune {
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if err := pruneApp(cl, app); err != nil {
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log.Fatal(err)
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}
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}
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if err := app.WriteRecipeVersion(toWriteVersion, false); err != nil {
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log.Fatalf("writing recipe version failed: %s", err)
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}
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},
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}
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// pruneApp runs the equivalent of a "docker system prune" but only filtering
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// against resources connected with the app deployment. It is not a system wide
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// prune. Volumes are not pruned to avoid unwated data loss.
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func pruneApp(cl *dockerClient.Client, app appPkg.App) error {
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stackName := app.StackName()
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ctx := context.Background()
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pruneFilters := filters.NewArgs()
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stackSearch := fmt.Sprintf("%s*", stackName)
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pruneFilters.Add("label", stackSearch)
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cr, err := cl.ContainersPrune(ctx, pruneFilters)
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if err != nil {
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return err
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}
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cntSpaceReclaimed := formatter.ByteCountSI(cr.SpaceReclaimed)
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log.Infof("containers pruned: %d; space reclaimed: %s", len(cr.ContainersDeleted), cntSpaceReclaimed)
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nr, err := cl.NetworksPrune(ctx, pruneFilters)
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if err != nil {
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return err
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}
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log.Infof("networks pruned: %d", len(nr.NetworksDeleted))
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ir, err := cl.ImagesPrune(ctx, pruneFilters)
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if err != nil {
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return err
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}
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imgSpaceReclaimed := formatter.ByteCountSI(ir.SpaceReclaimed)
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log.Infof("images pruned: %d; space reclaimed: %s", len(ir.ImagesDeleted), imgSpaceReclaimed)
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return nil
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}
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var (
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prune bool
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)
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func init() {
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AppUndeployCommand.Flags().BoolVarP(
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&prune,
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"prune",
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"p",
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false,
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"prune unused containers, networks, and dangling images",
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)
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}
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