package cluster import ( "fmt" "github.com/docker/docker/api/errors" swarmapi "github.com/docker/swarmkit/api" "golang.org/x/net/context" ) func getSwarm(ctx context.Context, c swarmapi.ControlClient) (*swarmapi.Cluster, error) { rl, err := c.ListClusters(ctx, &swarmapi.ListClustersRequest{}) if err != nil { return nil, err } if len(rl.Clusters) == 0 { return nil, errors.NewRequestNotFoundError(errNoSwarm) } // TODO: assume one cluster only return rl.Clusters[0], nil } func getNode(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Node, error) { // GetNode to match via full ID. if rg, err := c.GetNode(ctx, &swarmapi.GetNodeRequest{NodeID: input}); err == nil { return rg.Node, nil } // If any error (including NotFound), ListNodes to match via full name. rl, err := c.ListNodes(ctx, &swarmapi.ListNodesRequest{ Filters: &swarmapi.ListNodesRequest_Filters{ Names: []string{input}, }, }) if err != nil || len(rl.Nodes) == 0 { // If any error or 0 result, ListNodes to match via ID prefix. rl, err = c.ListNodes(ctx, &swarmapi.ListNodesRequest{ Filters: &swarmapi.ListNodesRequest_Filters{ IDPrefixes: []string{input}, }, }) } if err != nil { return nil, err } if len(rl.Nodes) == 0 { err := fmt.Errorf("node %s not found", input) return nil, errors.NewRequestNotFoundError(err) } if l := len(rl.Nodes); l > 1 { return nil, fmt.Errorf("node %s is ambiguous (%d matches found)", input, l) } return rl.Nodes[0], nil } func getService(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Service, error) { // GetService to match via full ID. if rg, err := c.GetService(ctx, &swarmapi.GetServiceRequest{ServiceID: input}); err == nil { return rg.Service, nil } // If any error (including NotFound), ListServices to match via full name. rl, err := c.ListServices(ctx, &swarmapi.ListServicesRequest{ Filters: &swarmapi.ListServicesRequest_Filters{ Names: []string{input}, }, }) if err != nil || len(rl.Services) == 0 { // If any error or 0 result, ListServices to match via ID prefix. rl, err = c.ListServices(ctx, &swarmapi.ListServicesRequest{ Filters: &swarmapi.ListServicesRequest_Filters{ IDPrefixes: []string{input}, }, }) } if err != nil { return nil, err } if len(rl.Services) == 0 { err := fmt.Errorf("service %s not found", input) return nil, errors.NewRequestNotFoundError(err) } if l := len(rl.Services); l > 1 { return nil, fmt.Errorf("service %s is ambiguous (%d matches found)", input, l) } return rl.Services[0], nil } func getTask(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Task, error) { // GetTask to match via full ID. if rg, err := c.GetTask(ctx, &swarmapi.GetTaskRequest{TaskID: input}); err == nil { return rg.Task, nil } // If any error (including NotFound), ListTasks to match via full name. rl, err := c.ListTasks(ctx, &swarmapi.ListTasksRequest{ Filters: &swarmapi.ListTasksRequest_Filters{ Names: []string{input}, }, }) if err != nil || len(rl.Tasks) == 0 { // If any error or 0 result, ListTasks to match via ID prefix. rl, err = c.ListTasks(ctx, &swarmapi.ListTasksRequest{ Filters: &swarmapi.ListTasksRequest_Filters{ IDPrefixes: []string{input}, }, }) } if err != nil { return nil, err } if len(rl.Tasks) == 0 { err := fmt.Errorf("task %s not found", input) return nil, errors.NewRequestNotFoundError(err) } if l := len(rl.Tasks); l > 1 { return nil, fmt.Errorf("task %s is ambiguous (%d matches found)", input, l) } return rl.Tasks[0], nil } func getSecret(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Secret, error) { // attempt to lookup secret by full ID if rg, err := c.GetSecret(ctx, &swarmapi.GetSecretRequest{SecretID: input}); err == nil { return rg.Secret, nil } // If any error (including NotFound), ListSecrets to match via full name. rl, err := c.ListSecrets(ctx, &swarmapi.ListSecretsRequest{ Filters: &swarmapi.ListSecretsRequest_Filters{ Names: []string{input}, }, }) if err != nil || len(rl.Secrets) == 0 { // If any error or 0 result, ListSecrets to match via ID prefix. rl, err = c.ListSecrets(ctx, &swarmapi.ListSecretsRequest{ Filters: &swarmapi.ListSecretsRequest_Filters{ IDPrefixes: []string{input}, }, }) } if err != nil { return nil, err } if len(rl.Secrets) == 0 { err := fmt.Errorf("secret %s not found", input) return nil, errors.NewRequestNotFoundError(err) } if l := len(rl.Secrets); l > 1 { return nil, fmt.Errorf("secret %s is ambiguous (%d matches found)", input, l) } return rl.Secrets[0], nil } func getNetwork(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Network, error) { // GetNetwork to match via full ID. if rg, err := c.GetNetwork(ctx, &swarmapi.GetNetworkRequest{NetworkID: input}); err == nil { return rg.Network, nil } // If any error (including NotFound), ListNetworks to match via ID prefix and full name. rl, err := c.ListNetworks(ctx, &swarmapi.ListNetworksRequest{ Filters: &swarmapi.ListNetworksRequest_Filters{ Names: []string{input}, }, }) if err != nil || len(rl.Networks) == 0 { rl, err = c.ListNetworks(ctx, &swarmapi.ListNetworksRequest{ Filters: &swarmapi.ListNetworksRequest_Filters{ IDPrefixes: []string{input}, }, }) } if err != nil { return nil, err } if len(rl.Networks) == 0 { return nil, fmt.Errorf("network %s not found", input) } if l := len(rl.Networks); l > 1 { return nil, fmt.Errorf("network %s is ambiguous (%d matches found)", input, l) } return rl.Networks[0], nil }