docker/cli · error

failed to create network %s: %w

Error message

failed to create network %s: %w

What it means

Error "failed to create network %s: %w" thrown in docker/cli.

Source

Thrown at cli/command/stack/deploy_composefile.go:196

	}

	existingNetworkMap := make(map[string]network.Summary)
	for _, nw := range existingNetworks.Items {
		existingNetworkMap[nw.Name] = nw
	}

	for name, createOpts := range networks {
		if _, exists := existingNetworkMap[name]; exists {
			continue
		}

		if createOpts.Driver == "" {
			createOpts.Driver = defaultNetworkDriver
		}

		_, _ = fmt.Fprintln(dockerCLI.Out(), "Creating network", name)
		if _, err := apiClient.NetworkCreate(ctx, name, createOpts); err != nil {
			return fmt.Errorf("failed to create network %s: %w", name, err)
		}
	}
	return nil
}

func deployServices(ctx context.Context, dockerCLI command.Cli, services map[string]swarm.ServiceSpec, namespace convert.Namespace, sendAuth bool, resolveImage string) ([]string, error) {
	apiClient := dockerCLI.Client()
	out := dockerCLI.Out()

	existingServices, err := getStackServices(ctx, apiClient, namespace.Name())
	if err != nil {
		return nil, err
	}

	existingServiceMap := make(map[string]swarm.Service)
	for _, svc := range existingServices.Items {
		existingServiceMap[svc.Spec.Name] = svc
	}

View on GitHub (pinned to e9452d6e78)

When it happens

Trigger: Thrown at cli/command/stack/deploy_composefile.go:196 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of docker/cli@e9452d6e78 (2026-08-01). Data as JSON: /data/errors/6e54ccf5021d9f9c.json. Report an issue: GitHub.