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package cluster // import "github.com/docker/docker/daemon/cluster"
import (
"context"
"fmt"
"github.com/docker/docker/errdefs"
swarmapi "github.com/docker/swarmkit/api"
"github.com/pkg/errors"
)
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.WithStack(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, errdefs.NotFound(err)
}
if l := len(rl.Nodes); l > 1 {
return nil, errdefs.InvalidParameter(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, insertDefaults bool) (*swarmapi.Service, error) {
// GetService to match via full ID.
if rg, err := c.GetService(ctx, &swarmapi.GetServiceRequest{ServiceID: input, InsertDefaults: insertDefaults}); 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, errdefs.NotFound(err)
}
if l := len(rl.Services); l > 1 {
return nil, errdefs.InvalidParameter(fmt.Errorf("service %s is ambiguous (%d matches found)", input, l))
}
if !insertDefaults {
return rl.Services[0], nil
}
rg, err := c.GetService(ctx, &swarmapi.GetServiceRequest{ServiceID: rl.Services[0].ID, InsertDefaults: true})
if err == nil {
return rg.Service, nil
}
return nil, err
}
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, errdefs.NotFound(err)
}
if l := len(rl.Tasks); l > 1 {
return nil, errdefs.InvalidParameter(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, errdefs.NotFound(err)
}
if l := len(rl.Secrets); l > 1 {
return nil, errdefs.InvalidParameter(fmt.Errorf("secret %s is ambiguous (%d matches found)", input, l))
}
return rl.Secrets[0], nil
}
func getConfig(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Config, error) {
// attempt to lookup config by full ID
if rg, err := c.GetConfig(ctx, &swarmapi.GetConfigRequest{ConfigID: input}); err == nil {
return rg.Config, nil
}
// If any error (including NotFound), ListConfigs to match via full name.
rl, err := c.ListConfigs(ctx, &swarmapi.ListConfigsRequest{
Filters: &swarmapi.ListConfigsRequest_Filters{
Names: []string{input},
},
})
if err != nil || len(rl.Configs) == 0 {
// If any error or 0 result, ListConfigs to match via ID prefix.
rl, err = c.ListConfigs(ctx, &swarmapi.ListConfigsRequest{
Filters: &swarmapi.ListConfigsRequest_Filters{
IDPrefixes: []string{input},
},
})
}
if err != nil {
return nil, err
}
if len(rl.Configs) == 0 {
err := fmt.Errorf("config %s not found", input)
return nil, errdefs.NotFound(err)
}
if l := len(rl.Configs); l > 1 {
return nil, errdefs.InvalidParameter(fmt.Errorf("config %s is ambiguous (%d matches found)", input, l))
}
return rl.Configs[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, errdefs.InvalidParameter(fmt.Errorf("network %s is ambiguous (%d matches found)", input, l))
}
return rl.Networks[0], nil
}
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