139 lines
3.5 KiB
Go
139 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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"time"
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"coopcloud.tech/abra/cli/internal"
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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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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/sirupsen/logrus"
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"github.com/urfave/cli"
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)
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var prune bool
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var pruneFlag = &cli.BoolFlag{
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Name: "prune, p",
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Destination: &prune,
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Usage: "Prunes unused containers, networks, and dangling images for an app",
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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(c *cli.Context, cl *dockerClient.Client, app config.App) error {
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stackName := app.StackName()
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ctx := context.Background()
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for {
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logrus.Debugf("polling for %s stack, waiting to be undeployed...", stackName)
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services, err := stack.GetStackServices(ctx, cl, stackName)
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if err != nil {
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return err
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}
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if len(services) == 0 {
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logrus.Debugf("%s undeployed, moving on with pruning logic", stackName)
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time.Sleep(time.Second) // give runtime more time to tear down related state
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break
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}
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time.Sleep(time.Second)
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}
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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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logrus.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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logrus.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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logrus.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 appUndeployCommand = cli.Command{
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Name: "undeploy",
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Aliases: []string{"un"},
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ArgsUsage: "<domain>",
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Flags: []cli.Flag{
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internal.DebugFlag,
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internal.NoInputFlag,
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pruneFlag,
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},
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Before: internal.SubCommandBefore,
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Usage: "Undeploy an app",
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BashComplete: autocomplete.AppNameComplete,
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Description: `
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This does not destroy any of the 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 "-p/--prune" does not remove those volumes.
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`,
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Action: func(c *cli.Context) error {
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app := internal.ValidateApp(c)
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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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logrus.Fatal(err)
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}
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logrus.Debugf("checking whether %s is already deployed", stackName)
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isDeployed, deployedVersion, err := stack.IsDeployed(context.Background(), cl, stackName)
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if err != nil {
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logrus.Fatal(err)
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}
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if !isDeployed {
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logrus.Fatalf("%s is not deployed?", app.Name)
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}
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if err := internal.DeployOverview(app, deployedVersion, "continue with undeploy?"); err != nil {
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logrus.Fatal(err)
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}
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rmOpts := stack.Remove{Namespaces: []string{app.StackName()}}
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if err := stack.RunRemove(context.Background(), cl, rmOpts); err != nil {
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logrus.Fatal(err)
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}
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if prune {
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if err := pruneApp(c, cl, app); err != nil {
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logrus.Fatal(err)
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}
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}
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return nil
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},
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}
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