| 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. |
| rg, err := c.GetNode(ctx, &swarmapi.GetNodeRequest{NodeID: input}) |
| if err != 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 |
| } |
| return rg.Node, nil |
| } |
| |
| func getService(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Service, error) { |
| // GetService to match via full ID. |
| rg, err := c.GetService(ctx, &swarmapi.GetServiceRequest{ServiceID: input}) |
| if err != 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 |
| } |
| return rg.Service, nil |
| } |
| |
| func getTask(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Task, error) { |
| // GetTask to match via full ID. |
| rg, err := c.GetTask(ctx, &swarmapi.GetTaskRequest{TaskID: input}) |
| if err != 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 |
| } |
| return rg.Task, nil |
| } |