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6b3a6e6b98
Instead of saying "Google Inc." (which is not always correct) say "The Kubernetes Authors", which is generic.
90 lines
2.8 KiB
Go
90 lines
2.8 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors 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 kubelet
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import (
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"fmt"
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"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
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)
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const ConfigSourceAnnotationKey = "kubernetes.io/config.source"
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const ConfigMirrorAnnotationKey = "kubernetes.io/config.mirror"
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// PodOperation defines what changes will be made on a pod configuration.
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type PodOperation int
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const (
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// This is the current pod configuration
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SET PodOperation = iota
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// Pods with the given ids are new to this source
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ADD
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// Pods with the given ids have been removed from this source
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REMOVE
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// Pods with the given ids have been updated in this source
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UPDATE
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// These constants identify the sources of pods
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// Updates from a file
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FileSource = "file"
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// Updates from querying a web page
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HTTPSource = "http"
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// Updates from Kubernetes API Server
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ApiserverSource = "api"
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// Updates from all sources
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AllSource = "*"
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// Used for ConfigMirrorAnnotationKey.
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MirrorType = "mirror"
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NamespaceDefault = api.NamespaceDefault
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)
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// PodUpdate defines an operation sent on the channel. You can add or remove single services by
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// sending an array of size one and Op == ADD|REMOVE (with REMOVE, only the ID is required).
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// For setting the state of the system to a given state for this source configuration, set
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// Pods as desired and Op to SET, which will reset the system state to that specified in this
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// operation for this source channel. To remove all pods, set Pods to empty object and Op to SET.
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//
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// Additionally, Pods should never be nil - it should always point to an empty slice. While
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// functionally similar, this helps our unit tests properly check that the correct PodUpdates
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// are generated.
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type PodUpdate struct {
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Pods []*api.Pod
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Op PodOperation
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Source string
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}
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// Gets all validated sources from the specified sources.
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func GetValidatedSources(sources []string) ([]string, error) {
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validated := make([]string, 0, len(sources))
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for _, source := range sources {
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switch source {
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case AllSource:
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return []string{FileSource, HTTPSource, ApiserverSource}, nil
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case FileSource, HTTPSource, ApiserverSource:
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validated = append(validated, source)
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break
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case "":
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break
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default:
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return []string{}, fmt.Errorf("unknown pod source %q", source)
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}
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}
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return validated, nil
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}
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