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https://github.com/optim-enterprises-bv/kubernetes.git
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9cbfb0c3f9
This helps as a starting point to show a single-machine container. Its easier to use this as an example to show where host port mapping breaks and move on to services.
115 lines
2.6 KiB
Go
115 lines
2.6 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 kubectl
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import (
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"fmt"
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"strconv"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
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)
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type BasicReplicationController struct{}
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func (BasicReplicationController) ParamNames() []GeneratorParam {
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return []GeneratorParam{
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{"labels", false},
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{"name", true},
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{"replicas", true},
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{"image", true},
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{"port", false},
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{"hostport", false},
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}
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}
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func (BasicReplicationController) Generate(params map[string]string) (runtime.Object, error) {
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// TODO: extract this flag to a central location.
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labelString, found := params["labels"]
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var labels map[string]string
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var err error
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if found && len(labelString) > 0 {
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labels, err = ParseLabels(labelString)
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if err != nil {
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return nil, err
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}
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} else {
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labels = map[string]string{
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"run-container": params["name"],
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}
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}
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count, err := strconv.Atoi(params["replicas"])
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if err != nil {
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return nil, err
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}
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controller := api.ReplicationController{
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ObjectMeta: api.ObjectMeta{
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Name: params["name"],
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Labels: labels,
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},
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Spec: api.ReplicationControllerSpec{
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Replicas: count,
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Selector: labels,
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Template: &api.PodTemplateSpec{
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ObjectMeta: api.ObjectMeta{
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Labels: labels,
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},
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Spec: api.PodSpec{
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Containers: []api.Container{
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{
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Name: params["name"],
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Image: params["image"],
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},
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},
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},
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},
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},
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}
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port := -1
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hostPort := -1
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if len(params["port"]) > 0 {
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port, err = strconv.Atoi(params["port"])
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if err != nil {
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return nil, err
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}
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}
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if len(params["hostport"]) > 0 {
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hostPort, err = strconv.Atoi(params["hostport"])
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if err != nil {
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return nil, err
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}
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if hostPort > 0 && port < 0 {
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return nil, fmt.Errorf("--hostport requires --port to be specified")
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}
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}
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// Don't include the port if it was not specified.
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if port > 0 {
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controller.Spec.Template.Spec.Containers[0].Ports = []api.ContainerPort{
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{
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ContainerPort: port,
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},
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}
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if hostPort > 0 {
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controller.Spec.Template.Spec.Containers[0].Ports[0].HostPort = hostPort
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}
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}
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return &controller, nil
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}
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