108 lines
3.3 KiB
Go
108 lines
3.3 KiB
Go
package cluster
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import (
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"fmt"
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swarmapi "github.com/docker/swarmkit/api"
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"golang.org/x/net/context"
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)
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func getSwarm(ctx context.Context, c swarmapi.ControlClient) (*swarmapi.Cluster, error) {
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rl, err := c.ListClusters(ctx, &swarmapi.ListClustersRequest{})
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if err != nil {
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return nil, err
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}
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if len(rl.Clusters) == 0 {
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return nil, fmt.Errorf("swarm not found")
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}
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// TODO: assume one cluster only
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return rl.Clusters[0], nil
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}
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func getNode(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Node, error) {
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// GetNode to match via full ID.
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rg, err := c.GetNode(ctx, &swarmapi.GetNodeRequest{NodeID: input})
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if err != nil {
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// If any error (including NotFound), ListNodes to match via full name.
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rl, err := c.ListNodes(ctx, &swarmapi.ListNodesRequest{Filters: &swarmapi.ListNodesRequest_Filters{Names: []string{input}}})
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if err != nil || len(rl.Nodes) == 0 {
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// If any error or 0 result, ListNodes to match via ID prefix.
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rl, err = c.ListNodes(ctx, &swarmapi.ListNodesRequest{Filters: &swarmapi.ListNodesRequest_Filters{IDPrefixes: []string{input}}})
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}
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if err != nil {
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return nil, err
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}
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if len(rl.Nodes) == 0 {
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return nil, fmt.Errorf("node %s not found", input)
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}
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if l := len(rl.Nodes); l > 1 {
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return nil, fmt.Errorf("node %s is ambiguous (%d matches found)", input, l)
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}
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return rl.Nodes[0], nil
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}
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return rg.Node, nil
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}
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func getService(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Service, error) {
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// GetService to match via full ID.
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rg, err := c.GetService(ctx, &swarmapi.GetServiceRequest{ServiceID: input})
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if err != nil {
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// If any error (including NotFound), ListServices to match via full name.
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rl, err := c.ListServices(ctx, &swarmapi.ListServicesRequest{Filters: &swarmapi.ListServicesRequest_Filters{Names: []string{input}}})
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if err != nil || len(rl.Services) == 0 {
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// If any error or 0 result, ListServices to match via ID prefix.
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rl, err = c.ListServices(ctx, &swarmapi.ListServicesRequest{Filters: &swarmapi.ListServicesRequest_Filters{IDPrefixes: []string{input}}})
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}
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if err != nil {
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return nil, err
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}
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if len(rl.Services) == 0 {
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return nil, fmt.Errorf("service %s not found", input)
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}
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if l := len(rl.Services); l > 1 {
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return nil, fmt.Errorf("service %s is ambiguous (%d matches found)", input, l)
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}
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return rl.Services[0], nil
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}
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return rg.Service, nil
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}
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func getTask(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Task, error) {
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// GetTask to match via full ID.
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rg, err := c.GetTask(ctx, &swarmapi.GetTaskRequest{TaskID: input})
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if err != nil {
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// If any error (including NotFound), ListTasks to match via full name.
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rl, err := c.ListTasks(ctx, &swarmapi.ListTasksRequest{Filters: &swarmapi.ListTasksRequest_Filters{Names: []string{input}}})
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if err != nil || len(rl.Tasks) == 0 {
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// If any error or 0 result, ListTasks to match via ID prefix.
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rl, err = c.ListTasks(ctx, &swarmapi.ListTasksRequest{Filters: &swarmapi.ListTasksRequest_Filters{IDPrefixes: []string{input}}})
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}
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if err != nil {
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return nil, err
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}
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if len(rl.Tasks) == 0 {
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return nil, fmt.Errorf("task %s not found", input)
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}
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if l := len(rl.Tasks); l > 1 {
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return nil, fmt.Errorf("task %s is ambiguous (%d matches found)", input, l)
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}
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return rl.Tasks[0], nil
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}
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return rg.Task, nil
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}
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