mirror of https://github.com/docker/cli.git
111 lines
2.4 KiB
Go
111 lines
2.4 KiB
Go
package hns
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import (
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"encoding/json"
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"fmt"
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"os"
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"path"
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"strings"
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)
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type namespaceRequest struct {
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IsDefault bool `json:",omitempty"`
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}
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type namespaceEndpointRequest struct {
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ID string `json:"Id"`
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}
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type NamespaceResource struct {
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Type string
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Data json.RawMessage
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}
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type namespaceResourceRequest struct {
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Type string
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Data interface{}
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}
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type Namespace struct {
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ID string
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IsDefault bool `json:",omitempty"`
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ResourceList []NamespaceResource `json:",omitempty"`
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}
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func issueNamespaceRequest(id *string, method, subpath string, request interface{}) (*Namespace, error) {
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var err error
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hnspath := "/namespaces/"
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if id != nil {
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hnspath = path.Join(hnspath, *id)
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}
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if subpath != "" {
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hnspath = path.Join(hnspath, subpath)
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}
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var reqJSON []byte
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if request != nil {
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if reqJSON, err = json.Marshal(request); err != nil {
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return nil, err
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}
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}
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var ns Namespace
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err = hnsCall(method, hnspath, string(reqJSON), &ns)
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if err != nil {
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if strings.Contains(err.Error(), "Element not found.") {
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return nil, os.ErrNotExist
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}
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return nil, fmt.Errorf("%s %s: %s", method, hnspath, err)
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}
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return &ns, err
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}
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func CreateNamespace() (string, error) {
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req := namespaceRequest{}
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ns, err := issueNamespaceRequest(nil, "POST", "", &req)
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if err != nil {
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return "", err
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}
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return ns.ID, nil
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}
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func RemoveNamespace(id string) error {
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_, err := issueNamespaceRequest(&id, "DELETE", "", nil)
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return err
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}
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func GetNamespaceEndpoints(id string) ([]string, error) {
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ns, err := issueNamespaceRequest(&id, "GET", "", nil)
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if err != nil {
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return nil, err
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}
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var endpoints []string
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for _, rsrc := range ns.ResourceList {
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if rsrc.Type == "Endpoint" {
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var endpoint namespaceEndpointRequest
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err = json.Unmarshal(rsrc.Data, &endpoint)
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if err != nil {
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return nil, fmt.Errorf("unmarshal endpoint: %s", err)
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}
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endpoints = append(endpoints, endpoint.ID)
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}
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}
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return endpoints, nil
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}
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func AddNamespaceEndpoint(id string, endpointID string) error {
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resource := namespaceResourceRequest{
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Type: "Endpoint",
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Data: namespaceEndpointRequest{endpointID},
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}
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_, err := issueNamespaceRequest(&id, "POST", "addresource", &resource)
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return err
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}
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func RemoveNamespaceEndpoint(id string, endpointID string) error {
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resource := namespaceResourceRequest{
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Type: "Endpoint",
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Data: namespaceEndpointRequest{endpointID},
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}
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_, err := issueNamespaceRequest(&id, "POST", "removeresource", &resource)
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return err
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}
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