func getNode(ctx context.Context, c api.ControlClient, input string) (*api.Node, error) {
// GetNode to match via full ID.
rg, err := c.GetNode(ctx, &api.GetNodeRequest{NodeID: input})
if err != nil {
// If any error (including NotFound), ListServices to match via ID prefix and full name.
rl, err := c.ListNodes(ctx,
&api.ListNodesRequest{
Filters: &api.ListNodesRequest_Filters{
NamePrefixes: []string{input},
},
},
)
if err != nil {
return nil, err
}
if len(rl.Nodes) == 0 {
return nil, fmt.Errorf("node %s not found", input)
}
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 getSecret(ctx context.Context, c api.ControlClient, input string) (*api.Secret, error) {
// not sure what it is, match by name or id prefix
resp, err := c.ListSecrets(ctx,
&api.ListSecretsRequest{
Filters: &api.ListSecretsRequest_Filters{
Names: []string{input},
IDPrefixes: []string{input},
},
},
)
if err != nil {
return nil, err
}
switch len(resp.Secrets) {
case 0:
return nil, fmt.Errorf("secret %s not found", input)
case 1:
return resp.Secrets[0], nil
default:
// ok, multiple matches. Prefer exact ID over exact name. If no exact matches, return an error
for _, s := range resp.Secrets {
if s.ID == input {
return s, nil
}
}
for _, s := range resp.Secrets {
if s.Spec.Annotations.Name == input {
return s, nil
}
}
return nil, fmt.Errorf("secret %s is ambiguous (%d matches found)", input, len(resp.Secrets))
}
}
// GetNetwork tries to query for a network as an ID and if it can't be
// found tries to query as a name. If the name query returns exactly
// one entry then it is returned to the caller. Otherwise an error is
// returned.
func GetNetwork(ctx context.Context, c api.ControlClient, input string) (*api.Network, error) {
// GetService to match via full ID.
rg, err := c.GetNetwork(ctx, &api.GetNetworkRequest{NetworkID: input})
if err != nil {
// If any error (including NotFound), ListServices to match via full name.
rl, err := c.ListNetworks(ctx,
&api.ListNetworksRequest{
Filters: &api.ListNetworksRequest_Filters{
Names: []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
}
return rg.Network, nil
}
func getCluster(ctx context.Context, c api.ControlClient, input string) (*api.Cluster, error) {
rg, err := c.GetCluster(ctx, &api.GetClusterRequest{ClusterID: input})
if err == nil {
return rg.Cluster, nil
}
rl, err := c.ListClusters(ctx,
&api.ListClustersRequest{
Filters: &api.ListClustersRequest_Filters{
NamePrefixes: []string{input},
},
},
)
if err != nil {
return nil, err
}
if len(rl.Clusters) == 0 {
return nil, fmt.Errorf("cluster %s not found", input)
}
if l := len(rl.Clusters); l > 1 {
return nil, fmt.Errorf("cluster %s is ambiguous (%d matches found)", input, l)
}
return rl.Clusters[0], nil
}
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, fmt.Errorf("swarm not found")
}
// TODO: assume one cluster only
return rl.Clusters[0], nil
}
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 getNetwork(ctx context.Context, c swarmapi.ControlClient, input string) (*swarmapi.Network, error) {
// GetNetwork to match via full ID.
rg, err := c.GetNetwork(ctx, &swarmapi.GetNetworkRequest{NetworkID: input})
if err != 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 ambigious (%d matches found)", input, l)
}
return rl.Networks[0], nil
}
return rg.Network, 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 {
return nil, fmt.Errorf("service %s not found", input)
}
if l := len(rl.Services); l > 1 {
return nil, fmt.Errorf("service %s is ambigious (%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
}
func managerStats(client swarmapi.ControlClient, currentNodeID string) (current bool, reachable int, unreachable int, err error) {
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
defer cancel()
nodes, err := client.ListNodes(ctx, &swarmapi.ListNodesRequest{})
if err != nil {
return false, 0, 0, err
}
for _, n := range nodes.Nodes {
if n.ManagerStatus != nil {
if n.ManagerStatus.Reachability == swarmapi.RaftMemberStatus_REACHABLE {
reachable++
if n.ID == currentNodeID {
current = true
}
}
if n.ManagerStatus.Reachability == swarmapi.RaftMemberStatus_UNREACHABLE {
unreachable++
}
}
}
return
}