kubernetes/kops · error

error running tasks: %v

Error message

error running tasks: %v

What it means

Run executes all provision tasks via context.RunTasks; if any task errors during its lifecycle (find/execute/verify), the whole apply is aborted and the error is wrapped as 'error running tasks'. This is the generic failure point of the actual infrastructure reconciliation — the cause is always in the wrapped inner error.

Source

Thrown at upup/pkg/fi/cloudup/apply_cluster.go:861

			return nil, fmt.Errorf("error finding deletions: %w", err)
		}
	}

	context, err := fi.NewCloudupContext(ctx, deletionProcessingMode, target, cluster, cloud, keyStore, secretStore, configBase, c.TaskMap)
	if err != nil {
		return nil, fmt.Errorf("error building context: %v", err)
	}

	var options fi.RunTasksOptions
	if c.RunTasksOptions != nil {
		options = *c.RunTasksOptions
	} else {
		options.InitDefaults()
	}

	err = context.RunTasks(options)
	if err != nil {
		return nil, fmt.Errorf("error running tasks: %v", err)
	}

	if !cluster.PublishesDNSRecords() {
		shouldPrecreateDNS = false
	}

	if shouldPrecreateDNS && clusterLifecycle != fi.LifecycleIgnore {
		if err := precreateDNS(ctx, cluster, cloud); err != nil {
			klog.Warningf("unable to pre-create DNS records - cluster startup may be slower: %v", err)
		}
	}

	err = target.Finish(c.TaskMap) // This will finish the apply, and print the changes
	if err != nil {
		return nil, fmt.Errorf("error closing target: %v", err)
	}

	applyResults := &ApplyResults{

View on GitHub (pinned to 4c8573c808)

Solutions

1. Look at the wrapped inner error printed after 'error running tasks:' — it names the failing task and cloud API reason
2. Fix the specific resource problem (rename, quota increase, choose different zone/instance type, fix DNS zone)
3. Re-run with -v / --v=8 for verbose task-level logging to pinpoint the failing task
4. For transient API errors, simply re-run the apply — tasks are idempotent and will resume
5. Use --target=dryrun first to validate the planned changes without touching the cloud

Example fix

// before: security group name already in use
// after: remove the stale resource or change the cluster name, then re-run
kops delete cluster mycluster.example.com --yes   # or clean up the conflicting resource
kops update cluster mycluster.example.com --yes

// preflight a dryrun to surface task errors without mutating the cloud:
validateCmd := &ApplyClusterCmd{...TargetName: "dryrun"...}
if err := validateCmd.Run(ctx); err != nil {
	return fmt.Errorf("preflight dryrun failed: %w", err)
}

if err := cmd.Run(ctx); err != nil && strings.Contains(err.Error(), "error running tasks") {
	// parse the wrapped task error, fix the cloud resource issue,
	// then re-run: tasks are idempotent and resume safely
}

When it happens

Trigger: Any task failing during `kops update cluster`: e.g. VPC/subnet creation failure, security group conflicts, instance template validation, DNS zone missing, cloud quota exceeded — from direct, terraform, or dryrun target task execution.

Common situations: Cloud resource conflicts (name already taken), quota limits, invalid combinations (e.g. unsupported instance type in a zone), network CIDR overlaps, DNS configuration errors, transient cloud API failures.

Related errors

• error building tasks: %v
• failed to apply objects: %w
• not all objects were applied
• updating %q: %w
• error querying for DNS zones: %v

AI-assisted analysis of kubernetes/kops@4c8573c808 (2026-09-05). Data as JSON: /api/errors/9cb39fa1aed0c73c. Report an issue: GitHub.