forked from coop-cloud/abra
refactor: hopefully more robust prune logic, docs
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@ -24,52 +24,53 @@ var pruneFlag = &cli.BoolFlag{
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Usage: "Prunes unused containers, networks, and dangling images for an app",
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}
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// pruneSystem runs the equivalent of a "docker system prune" after undeploying
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// in order to clean up left over state related to the deployment. We must run
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// this logic inside a loop as it may take some time for the undeployed to come
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// down.
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// pruneSystem runs the equivalent of a "docker system prune" after an undeploy
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// in order to clean up left over state related to the deployment. Volumes are
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// not pruned to avoid unwated data loss.
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func pruneSystem(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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if !prune {
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return nil
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}
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logrus.Debugf("polling for %s stack, waiting to be undeployed...", stackName)
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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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services, err := stack.GetStackServices(ctx, cl, stackName)
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if err != nil {
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logrus.Errorf(err.Error())
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time.Sleep(time.Second)
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continue
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return err
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}
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logrus.Infof("containers deleted: %s; space reclaimed: %v", cr.ContainersDeleted, cr.SpaceReclaimed)
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nr, err := cl.NetworksPrune(ctx, pruneFilters)
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if err != nil {
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logrus.Errorf(err.Error())
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time.Sleep(time.Second)
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continue
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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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break
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}
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logrus.Infof("networks deleted %s", nr.NetworksDeleted)
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ir, err := cl.ImagesPrune(ctx, pruneFilters)
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if err != nil {
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logrus.Errorf(err.Error())
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time.Sleep(time.Second)
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continue
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}
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logrus.Infof("images deleted: %s; space reclaimed: %v", ir.ImagesDeleted, ir.SpaceReclaimed)
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break
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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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logrus.Infof("containers deleted: %s; space reclaimed: %v", cr.ContainersDeleted, cr.SpaceReclaimed)
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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 deleted %s", 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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logrus.Infof("images deleted: %s; space reclaimed: %v", ir.ImagesDeleted, ir.SpaceReclaimed)
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return nil
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}
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@ -118,8 +119,10 @@ volumes as eligible for pruning once undeployed.
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logrus.Fatal(err)
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}
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if err := pruneSystem(c, cl, app); err != nil {
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logrus.Fatal(err)
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if prune {
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if err := pruneSystem(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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