mirror of https://github.com/k3s-io/k3s
125 lines
3.4 KiB
Go
125 lines
3.4 KiB
Go
/*
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Copyright 2014 Google Inc. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package minion
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import (
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"errors"
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"fmt"
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"net"
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"strconv"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/apiserver"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/labels"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/master/ports"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/util"
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)
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// REST implements the RESTStorage interface, backed by a MinionRegistry.
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type REST struct {
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registry Registry
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}
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// NewREST returns a new REST.
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func NewREST(m Registry) *REST {
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return &REST{
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registry: m,
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}
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}
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var ErrDoesNotExist = errors.New("The requested resource does not exist.")
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var ErrNotHealty = errors.New("The requested minion is not healthy.")
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func (rs *REST) Create(ctx api.Context, obj runtime.Object) (<-chan runtime.Object, error) {
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minion, ok := obj.(*api.Minion)
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if !ok {
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return nil, fmt.Errorf("not a minion: %#v", obj)
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}
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if minion.ID == "" {
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return nil, fmt.Errorf("ID should not be empty: %#v", minion)
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}
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minion.CreationTimestamp = util.Now()
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return apiserver.MakeAsync(func() (runtime.Object, error) {
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err := rs.registry.CreateMinion(ctx, minion)
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if err != nil {
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return nil, err
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}
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minion, err := rs.registry.GetMinion(ctx, minion.ID)
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if minion == nil {
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return nil, ErrDoesNotExist
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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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return minion, nil
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}), nil
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}
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func (rs *REST) Delete(ctx api.Context, id string) (<-chan runtime.Object, error) {
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minion, err := rs.registry.GetMinion(ctx, id)
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if minion == nil {
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return nil, ErrDoesNotExist
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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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return apiserver.MakeAsync(func() (runtime.Object, error) {
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return &api.Status{Status: api.StatusSuccess}, rs.registry.DeleteMinion(ctx, id)
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}), nil
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}
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func (rs *REST) Get(ctx api.Context, id string) (runtime.Object, error) {
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minion, err := rs.registry.GetMinion(ctx, id)
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if minion == nil {
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return nil, ErrDoesNotExist
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}
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return minion, err
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}
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func (rs *REST) List(ctx api.Context, label, field labels.Selector) (runtime.Object, error) {
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return rs.registry.ListMinions(ctx)
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}
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func (rs *REST) New() runtime.Object {
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return &api.Minion{}
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}
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func (rs *REST) Update(ctx api.Context, minion runtime.Object) (<-chan runtime.Object, error) {
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return nil, fmt.Errorf("Minions can only be created (inserted) and deleted.")
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}
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func (rs *REST) toApiMinion(name string) *api.Minion {
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return &api.Minion{TypeMeta: api.TypeMeta{ID: name}}
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}
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// ResourceLocation returns a URL to which one can send traffic for the specified minion.
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func (rs *REST) ResourceLocation(ctx api.Context, id string) (string, error) {
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minion, err := rs.registry.GetMinion(ctx, id)
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if err != nil {
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return "", err
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}
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host := minion.HostIP
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if host == "" {
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host = minion.ID
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}
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// TODO: Minion webservers should be secure!
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return "http://" + net.JoinHostPort(host, strconv.Itoa(ports.KubeletPort)), nil
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}
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