mirror of https://github.com/helm/helm
Jack Greenfield
9 years ago
commit
5217a351ad
@ -1,12 +0,0 @@
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# Makefile for the Docker image gcr.io/$(PROJECT)/expandybird
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# MAINTAINER: Jack Greenfield <jackgr@google.com>
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# If you update this image please check the tag value before pushing.
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.PHONY : all build test push container clean
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test: client
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client --action=expand test/guestbook.yaml test/replicatedservice.py test/redis.jinja > /dev/null
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client:
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go get -v ./...
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go install -v ./...
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@ -1,249 +0,0 @@
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/*
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Copyright 2015 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 main
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import (
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"github.com/ghodss/yaml"
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"github.com/kubernetes/deployment-manager/client/registry"
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"github.com/kubernetes/deployment-manager/expandybird/expander"
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"github.com/kubernetes/deployment-manager/manager/manager"
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"bytes"
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"encoding/json"
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"flag"
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"fmt"
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"io"
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"io/ioutil"
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"log"
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"net/http"
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"net/url"
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"os"
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"strconv"
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"strings"
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"time"
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)
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var (
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action = flag.String("action", "deploy", "expand | deploy | list | get | delete | update | listtypes | listtypeinstances | types")
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name = flag.String("name", "", "Name of template or deployment")
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service = flag.String("service", "http://localhost:8080", "URL for deployment manager")
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type_registry = flag.String("type_registry", "kubernetes/deployment-manager", "Type registry [owner/repo], defaults to kubernetes/deployment-manager")
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binary = flag.String("binary", "../expandybird/expansion/expansion.py",
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"Path to template expansion binary")
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properties = flag.String("properties", "", "Properties to use when deploying a type (e.g., --properties k1=v1,k2=v2)")
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)
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var usage = func() {
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message := "usage: %s [<flags>] (name | (<template> [<import1>...<importN>]))\n"
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fmt.Fprintf(os.Stderr, message, os.Args[0])
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flag.PrintDefaults()
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}
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func getGitRegistry() *registry.GithubRegistry {
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s := strings.Split(*type_registry, "/")
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if len(s) != 2 {
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log.Fatalf("invalid type registry: %s", type_registry)
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}
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return registry.NewGithubRegistry(s[0], s[1])
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}
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func main() {
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flag.Parse()
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name := getNameArgument()
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switch *action {
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case "types":
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git := getGitRegistry()
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types, err := git.List()
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if err != nil {
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log.Fatalf("Cannot list %v err")
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}
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log.Printf("Types:")
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for _, t := range types {
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log.Printf("%s:%s", t.Name, t.Version)
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downloadURL, err := git.GetURL(t)
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if err != nil {
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log.Printf("Failed to get download URL for type %s:%s", t.Name, t.Version)
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}
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log.Printf("\tdownload URL: %s", downloadURL)
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}
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case "expand":
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backend := expander.NewExpander(*binary)
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template := loadTemplate(name)
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output, err := backend.ExpandTemplate(template)
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if err != nil {
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log.Fatalf("cannot expand %s: %s\n", name, err)
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}
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fmt.Println(output)
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case "deploy":
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callService("deployments", "POST", name, readTemplate(name))
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case "list":
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callService("deployments", "GET", name, nil)
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case "get":
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path := fmt.Sprintf("deployments/%s", name)
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callService(path, "GET", name, nil)
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case "delete":
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path := fmt.Sprintf("deployments/%s", name)
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callService(path, "DELETE", name, nil)
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case "update":
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path := fmt.Sprintf("deployments/%s", name)
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callService(path, "PUT", name, readTemplate(name))
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case "listtypes":
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callService("types", "GET", name, nil)
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case "listtypeinstances":
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path := fmt.Sprintf("types/%s/instances", url.QueryEscape(name))
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callService(path, "GET", name, nil)
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}
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}
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func callService(path, method, name string, reader io.ReadCloser) {
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action := strings.ToLower(method)
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if action == "post" {
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action = "deploy"
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}
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u := fmt.Sprintf("%s/%s", *service, path)
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request, err := http.NewRequest(method, u, reader)
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request.Header.Add("Content-Type", "application/json")
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response, err := http.DefaultClient.Do(request)
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if err != nil {
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log.Fatalf("cannot %s template named %s: %s\n", action, name, err)
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}
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defer response.Body.Close()
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body, err := ioutil.ReadAll(response.Body)
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if err != nil {
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log.Fatalf("cannot %s template named %s: %s\n", action, name, err)
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}
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if response.StatusCode < http.StatusOK ||
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response.StatusCode >= http.StatusMultipleChoices {
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message := fmt.Sprintf("status code: %d status: %s : %s", response.StatusCode, response.Status, body)
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log.Fatalf("cannot %s template named %s: %s\n", action, name, message)
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}
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fmt.Println(string(body))
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}
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func readTemplate(name string) io.ReadCloser {
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return marshalTemplate(loadTemplate(name))
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}
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func loadTemplate(name string) *expander.Template {
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args := flag.Args()
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if len(args) < 1 {
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usage()
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os.Exit(1)
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}
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var template *expander.Template
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var err error
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if len(args) == 1 {
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if t := getRegistryType(args[0]); t != nil {
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template = buildTemplateFromType(name, *t)
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} else {
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template, err = expander.NewTemplateFromRootTemplate(args[0])
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}
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} else {
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template, err = expander.NewTemplateFromFileNames(args[0], args[1:])
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}
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if err != nil {
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log.Fatalf("cannot create template from supplied file names: %s\n", err)
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}
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if name != "" {
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template.Name = name
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}
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return template
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}
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// TODO: needs better validation that this is actually a registry type.
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func getRegistryType(fullType string) *registry.Type {
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tList := strings.Split(fullType, ":")
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if len(tList) != 2 {
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return nil
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}
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return ®istry.Type{
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Name: tList[0],
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Version: tList[1],
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}
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}
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func buildTemplateFromType(name string, t registry.Type) *expander.Template {
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git := getGitRegistry()
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downloadURL, err := git.GetURL(t)
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if err != nil {
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log.Printf("Failed to get download URL for type %s:%s", t.Name, t.Version)
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}
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props := make(map[string]interface{})
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if *properties != "" {
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plist := strings.Split(*properties, ",")
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for _, p := range plist {
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ppair := strings.Split(p, "=")
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if len(ppair) != 2 {
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log.Fatalf("--properties must be in the form \"p1=v1,p2=v2,...\": %s", p)
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}
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// support ints
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// TODO: needs to support other types.
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i, err := strconv.Atoi(ppair[1])
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if err != nil {
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props[ppair[0]] = ppair[1]
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} else {
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props[ppair[0]] = i
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}
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}
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}
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config := manager.Configuration{Resources: []*manager.Resource{&manager.Resource{
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Name: name,
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Type: downloadURL,
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Properties: props,
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}}}
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y, err := yaml.Marshal(config)
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if err != nil {
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log.Fatalf("cannot create configuration for deployment: %v\n", config)
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}
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return &expander.Template{
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// Name will be set later.
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Content: string(y),
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// No imports, as this is a single type from repository.
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}
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}
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func marshalTemplate(template *expander.Template) io.ReadCloser {
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j, err := json.Marshal(template)
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if err != nil {
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log.Fatalf("cannot deploy template %s: %s\n", template.Name, err)
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}
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return ioutil.NopCloser(bytes.NewReader(j))
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}
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func getNameArgument() string {
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if *name == "" {
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*name = fmt.Sprintf("manifest-%d", time.Now().UTC().UnixNano())
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}
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return *name
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}
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@ -1,49 +0,0 @@
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######################################################################
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|
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# Copyright 2015 The Kubernetes Authors All rights reserved.
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||||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
||||||
# you may not use this file except in compliance with the License.
|
|
||||||
# You may obtain a copy of the License at
|
|
||||||
# http://www.apache.org/licenses/LICENSE-2.0
|
|
||||||
# Unless required by applicable law or agreed to in writing, software
|
|
||||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
||||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
||||||
# See the License for the specific language governing permissions and
|
|
||||||
# limitations under the License.
|
|
||||||
######################################################################
|
|
||||||
|
|
||||||
imports:
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- path: replicatedservice.py
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resources:
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|
||||||
- name: expandybird
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type: replicatedservice.py
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properties:
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service_port: 8081
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target_port: 8080
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container_port: 8080
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|
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external_service: false
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replicas: 2
|
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image: gcr.io/PROJECT/expandybird:latest
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labels:
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|
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app: dm
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- name: resourcifier
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type: replicatedservice.py
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properties:
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service_port: 8082
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|
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target_port: 8080
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container_port: 8080
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external_service: false
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replicas: 2
|
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image: gcr.io/PROJECT/resourcifier:latest
|
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labels:
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app: dm
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- name: manager
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type: replicatedservice.py
|
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properties:
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service_port: 8080
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target_port: 8080
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container_port: 8080
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external_service: true
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replicas: 1
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image: gcr.io/PROJECT/manager:latest
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labels:
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app: dm
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@ -1,32 +0,0 @@
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{% set REDIS_PORT = 6379 %}
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{% set WORKERS = properties['workers'] or 2 %}
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||||||
|
|
||||||
resources:
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|
||||||
- name: redis-master
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|
||||||
type: replicatedservice.py
|
|
||||||
properties:
|
|
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# This has to be overwritten since service names are hard coded in the code
|
|
||||||
service_name: redis-master
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|
||||||
service_port: {{ REDIS_PORT }}
|
|
||||||
target_port: {{ REDIS_PORT }}
|
|
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container_port: {{ REDIS_PORT }}
|
|
||||||
replicas: 1
|
|
||||||
container_name: master
|
|
||||||
image: redis
|
|
||||||
|
|
||||||
- name: redis-slave
|
|
||||||
type: replicatedservice.py
|
|
||||||
properties:
|
|
||||||
# This has to be overwritten since service names are hard coded in the code
|
|
||||||
service_name: redis-slave
|
|
||||||
service_port: {{ REDIS_PORT }}
|
|
||||||
container_port: {{ REDIS_PORT }}
|
|
||||||
replicas: {{ WORKERS }}
|
|
||||||
container_name: worker
|
|
||||||
image: kubernetes/redis-slave:v2
|
|
||||||
# An example of how to specify env variables.
|
|
||||||
env:
|
|
||||||
- name: GET_HOSTS_FROM
|
|
||||||
value: env
|
|
||||||
- name: REDIS_MASTER_SERVICE_HOST
|
|
||||||
value: redis-master
|
|
||||||
@ -1,200 +0,0 @@
|
|||||||
######################################################################
|
|
||||||
# Copyright 2015 The Kubernetes Authors All rights reserved.
|
|
||||||
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
||||||
# you may not use this file except in compliance with the License.
|
|
||||||
# You may obtain a copy of the License at
|
|
||||||
# http://www.apache.org/licenses/LICENSE-2.0
|
|
||||||
# Unless required by applicable law or agreed to in writing, software
|
|
||||||
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
||||||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
||||||
# See the License for the specific language governing permissions and
|
|
||||||
# limitations under the License.
|
|
||||||
######################################################################
|
|
||||||
|
|
||||||
"""Defines a ReplicatedService type by creating both a Service and an RC.
|
|
||||||
|
|
||||||
This module creates a typical abstraction for running a service in a
|
|
||||||
Kubernetes cluster, namely a replication controller and a service packaged
|
|
||||||
together into a single unit.
|
|
||||||
"""
|
|
||||||
|
|
||||||
import yaml
|
|
||||||
|
|
||||||
SERVICE_TYPE_COLLECTION = 'Service'
|
|
||||||
RC_TYPE_COLLECTION = 'ReplicationController'
|
|
||||||
|
|
||||||
|
|
||||||
def GenerateConfig(context):
|
|
||||||
"""Generates a Replication Controller and a matching Service.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
context: Template context, which can contain the following properties:
|
|
||||||
container_name - Name to use for container. If omitted, name is
|
|
||||||
used.
|
|
||||||
namespace - Namespace to create the resources in. If omitted,
|
|
||||||
'default' is used.
|
|
||||||
service_name - Name to use for service. If omitted name-service is
|
|
||||||
used.
|
|
||||||
protocol - Protocol to use for the service
|
|
||||||
service_port - Port to use for the service
|
|
||||||
target_port - Target port for the service
|
|
||||||
container_port - Container port to use
|
|
||||||
replicas - Number of replicas to create in RC
|
|
||||||
image - Docker image to use for replicas. Required.
|
|
||||||
labels - labels to apply.
|
|
||||||
env - Environmental variables to apply (list of maps). Format
|
|
||||||
should be:
|
|
||||||
[{'name': ENV_VAR_NAME, 'value':'ENV_VALUE'},
|
|
||||||
{'name': ENV_VAR_NAME_2, 'value':'ENV_VALUE_2'}]
|
|
||||||
external_service - If set to true, enable external Load Balancer
|
|
||||||
|
|
||||||
Returns:
|
|
||||||
A Container Manifest as a YAML string.
|
|
||||||
"""
|
|
||||||
# YAML config that we're going to create for both RC & Service
|
|
||||||
config = {'resources': []}
|
|
||||||
|
|
||||||
name = context.env['name']
|
|
||||||
container_name = context.properties.get('container_name', name)
|
|
||||||
namespace = context.properties.get('namespace', 'default')
|
|
||||||
|
|
||||||
# Define things that the Service cares about
|
|
||||||
service_name = context.properties.get('service_name', name + '-service')
|
|
||||||
service_type = SERVICE_TYPE_COLLECTION
|
|
||||||
|
|
||||||
# Define things that the Replication Controller (rc) cares about
|
|
||||||
rc_name = name + '-rc'
|
|
||||||
rc_type = RC_TYPE_COLLECTION
|
|
||||||
|
|
||||||
service = {
|
|
||||||
'name': service_name,
|
|
||||||
'type': service_type,
|
|
||||||
'properties': {
|
|
||||||
'apiVersion': 'v1',
|
|
||||||
'kind': 'Service',
|
|
||||||
'namespace': namespace,
|
|
||||||
'metadata': {
|
|
||||||
'name': service_name,
|
|
||||||
'labels': GenerateLabels(context, service_name),
|
|
||||||
},
|
|
||||||
'spec': {
|
|
||||||
'ports': [GenerateServicePorts(context, container_name)],
|
|
||||||
'selector': GenerateLabels(context, name)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
set_up_external_lb = context.properties.get('external_service', None)
|
|
||||||
if set_up_external_lb:
|
|
||||||
service['properties']['spec']['type'] = 'LoadBalancer'
|
|
||||||
config['resources'].append(service)
|
|
||||||
|
|
||||||
rc = {
|
|
||||||
'name': rc_name,
|
|
||||||
'type': rc_type,
|
|
||||||
'properties': {
|
|
||||||
'apiVersion': 'v1',
|
|
||||||
'kind': 'ReplicationController',
|
|
||||||
'namespace': namespace,
|
|
||||||
'metadata': {
|
|
||||||
'name': rc_name,
|
|
||||||
'labels': GenerateLabels(context, rc_name),
|
|
||||||
},
|
|
||||||
'spec': {
|
|
||||||
'replicas': context.properties['replicas'],
|
|
||||||
'selector': GenerateLabels(context, name),
|
|
||||||
'template': {
|
|
||||||
'metadata': {
|
|
||||||
'labels': GenerateLabels(context, name),
|
|
||||||
},
|
|
||||||
'spec': {
|
|
||||||
'containers': [
|
|
||||||
{
|
|
||||||
'env': GenerateEnv(context),
|
|
||||||
'name': container_name,
|
|
||||||
'image': context.properties['image'],
|
|
||||||
'ports': [
|
|
||||||
{
|
|
||||||
'name': container_name,
|
|
||||||
'containerPort': context.properties['container_port'],
|
|
||||||
}
|
|
||||||
]
|
|
||||||
}
|
|
||||||
]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
config['resources'].append(rc)
|
|
||||||
return yaml.dump(config)
|
|
||||||
|
|
||||||
|
|
||||||
# Generates labels either from the context.properties['labels'] or generates
|
|
||||||
# a default label 'name':name
|
|
||||||
def GenerateLabels(context, name):
|
|
||||||
"""Generates labels from context.properties['labels'] or creates default.
|
|
||||||
|
|
||||||
We make a deep copy of the context.properties['labels'] section to avoid
|
|
||||||
linking in the yaml document, which I believe reduces readability of the
|
|
||||||
expanded template. If no labels are given, generate a default 'name':name.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
context: Template context, which can contain the following properties:
|
|
||||||
labels - Labels to generate
|
|
||||||
|
|
||||||
Returns:
|
|
||||||
A dict containing labels in a name:value format
|
|
||||||
"""
|
|
||||||
tmp_labels = context.properties.get('labels', None)
|
|
||||||
ret_labels = {'name': name}
|
|
||||||
if isinstance(tmp_labels, dict):
|
|
||||||
for key, value in tmp_labels.iteritems():
|
|
||||||
ret_labels[key] = value
|
|
||||||
return ret_labels
|
|
||||||
|
|
||||||
|
|
||||||
def GenerateServicePorts(context, name):
|
|
||||||
"""Generates a ports section for a service.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
context: Template context, which can contain the following properties:
|
|
||||||
service_port - Port to use for the service
|
|
||||||
target_port - Target port for the service
|
|
||||||
protocol - Protocol to use.
|
|
||||||
|
|
||||||
Returns:
|
|
||||||
A dict containing a port definition
|
|
||||||
"""
|
|
||||||
service_port = context.properties.get('service_port', None)
|
|
||||||
target_port = context.properties.get('target_port', None)
|
|
||||||
protocol = context.properties.get('protocol')
|
|
||||||
|
|
||||||
ports = {}
|
|
||||||
if name:
|
|
||||||
ports['name'] = name
|
|
||||||
if service_port:
|
|
||||||
ports['port'] = service_port
|
|
||||||
if target_port:
|
|
||||||
ports['targetPort'] = target_port
|
|
||||||
if protocol:
|
|
||||||
ports['protocol'] = protocol
|
|
||||||
|
|
||||||
return ports
|
|
||||||
|
|
||||||
def GenerateEnv(context):
|
|
||||||
"""Generates environmental variables for a pod.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
context: Template context, which can contain the following properties:
|
|
||||||
env - Environment variables to set.
|
|
||||||
|
|
||||||
Returns:
|
|
||||||
A list containing env variables in dict format {name: 'name', value: 'value'}
|
|
||||||
"""
|
|
||||||
env = []
|
|
||||||
tmp_env = context.properties.get('env', [])
|
|
||||||
for entry in tmp_env:
|
|
||||||
if isinstance(entry, dict):
|
|
||||||
env.append({'name': entry.get('name'), 'value': entry.get('value')})
|
|
||||||
return env
|
|
||||||
@ -0,0 +1,286 @@
|
|||||||
|
/*
|
||||||
|
Copyright 2015 The Kubernetes Authors All rights reserved.
|
||||||
|
Licensed under the Apache License, Version 2.0 (the "License");
|
||||||
|
you may not use this file except in compliance with the License.
|
||||||
|
You may obtain a copy of the License at
|
||||||
|
http://www.apache.org/licenses/LICENSE-2.0
|
||||||
|
Unless required by applicable law or agreed to in writing, software
|
||||||
|
distributed under the License is distributed on an "AS IS" BASIS,
|
||||||
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||||
|
See the License for the specific language governing permissions and
|
||||||
|
limitations under the License.
|
||||||
|
*/
|
||||||
|
|
||||||
|
package main
|
||||||
|
|
||||||
|
import (
|
||||||
|
"github.com/ghodss/yaml"
|
||||||
|
|
||||||
|
"github.com/kubernetes/deployment-manager/expandybird/expander"
|
||||||
|
"github.com/kubernetes/deployment-manager/manager/manager"
|
||||||
|
"github.com/kubernetes/deployment-manager/registry"
|
||||||
|
|
||||||
|
"bytes"
|
||||||
|
"encoding/json"
|
||||||
|
"flag"
|
||||||
|
"fmt"
|
||||||
|
"io"
|
||||||
|
"io/ioutil"
|
||||||
|
"log"
|
||||||
|
"net/http"
|
||||||
|
"net/url"
|
||||||
|
"os"
|
||||||
|
"strconv"
|
||||||
|
"strings"
|
||||||
|
"time"
|
||||||
|
)
|
||||||
|
|
||||||
|
var (
|
||||||
|
// TODO(jackgr): Implement reading a template from stdin
|
||||||
|
//stdin = flag.Bool("stdin", false, "Reads a template from the standard input")
|
||||||
|
properties = flag.String("properties", "", "Properties to use when deploying a type (e.g., --properties k1=v1,k2=v2)")
|
||||||
|
type_registry = flag.String("registry", "kubernetes/deployment-manager", "Github based type registry [owner/repo]")
|
||||||
|
service = flag.String("service", "http://localhost:8001/api/v1/proxy/namespaces/default/services/manager-service:manager", "URL for deployment manager")
|
||||||
|
binary = flag.String("binary", "../expandybird/expansion/expansion.py", "Path to template expansion binary")
|
||||||
|
)
|
||||||
|
|
||||||
|
var commands = []string{
|
||||||
|
"expand \t\t\t Expands the supplied template(s)",
|
||||||
|
"deploy \t\t\t Deploys the supplied type or template(s)",
|
||||||
|
"list \t\t\t Lists the deployments in the cluster",
|
||||||
|
"get \t\t\t Retrieves the supplied deployment",
|
||||||
|
"delete \t\t\t Deletes the supplied deployment",
|
||||||
|
"update \t\t\t Updates a deployment using the supplied template(s)",
|
||||||
|
"deployed-types \t\t Lists the types deployed in the cluster",
|
||||||
|
"deployed-instances \t Lists the instances of the supplied type deployed in the cluster",
|
||||||
|
"types \t\t\t Lists the types in the current registry",
|
||||||
|
"describe \t\t Describes the supplied type in the current registry",
|
||||||
|
}
|
||||||
|
|
||||||
|
var usage = func() {
|
||||||
|
message := "Usage: %s [<flags>] <command> (<type-name> | <deployment-name> | (<template> [<import1>...<importN>]))\n"
|
||||||
|
fmt.Fprintf(os.Stderr, message, os.Args[0])
|
||||||
|
fmt.Fprintln(os.Stderr, "Commands:")
|
||||||
|
for _, command := range commands {
|
||||||
|
fmt.Fprintln(os.Stderr, command)
|
||||||
|
}
|
||||||
|
|
||||||
|
fmt.Fprintln(os.Stderr)
|
||||||
|
fmt.Fprintln(os.Stderr, "Flags:")
|
||||||
|
flag.PrintDefaults()
|
||||||
|
fmt.Fprintln(os.Stderr)
|
||||||
|
os.Exit(1)
|
||||||
|
}
|
||||||
|
|
||||||
|
func getGitRegistry() *registry.GithubRegistry {
|
||||||
|
s := strings.Split(*type_registry, "/")
|
||||||
|
if len(s) != 2 {
|
||||||
|
log.Fatalf("invalid type registry: %s", type_registry)
|
||||||
|
}
|
||||||
|
|
||||||
|
return registry.NewGithubRegistry(s[0], s[1])
|
||||||
|
}
|
||||||
|
|
||||||
|
func main() {
|
||||||
|
flag.Parse()
|
||||||
|
args := flag.Args()
|
||||||
|
if len(args) < 1 {
|
||||||
|
fmt.Fprintln(os.Stderr, "No command supplied")
|
||||||
|
usage()
|
||||||
|
}
|
||||||
|
|
||||||
|
command := args[0]
|
||||||
|
switch command {
|
||||||
|
case "types":
|
||||||
|
git := getGitRegistry()
|
||||||
|
types, err := git.List()
|
||||||
|
if err != nil {
|
||||||
|
log.Fatalf("Cannot list %v err")
|
||||||
|
}
|
||||||
|
|
||||||
|
fmt.Printf("Types:")
|
||||||
|
for _, t := range types {
|
||||||
|
fmt.Printf("%s:%s", t.Name, t.Version)
|
||||||
|
downloadURL, err := git.GetURL(t)
|
||||||
|
if err != nil {
|
||||||
|
log.Printf("Failed to get download URL for type %s:%s", t.Name, t.Version)
|
||||||
|
}
|
||||||
|
|
||||||
|
fmt.Printf("\tdownload URL: %s", downloadURL)
|
||||||
|
}
|
||||||
|
case "describe":
|
||||||
|
fmt.Printf("this feature is not yet implemented")
|
||||||
|
case "expand":
|
||||||
|
backend := expander.NewExpander(*binary)
|
||||||
|
template := loadTemplate(args)
|
||||||
|
output, err := backend.ExpandTemplate(template)
|
||||||
|
if err != nil {
|
||||||
|
log.Fatalf("cannot expand %s: %s\n", template.Name, err)
|
||||||
|
}
|
||||||
|
|
||||||
|
fmt.Println(output)
|
||||||
|
case "deploy":
|
||||||
|
template := loadTemplate(args)
|
||||||
|
action := fmt.Sprintf("deploy template named %s", template.Name)
|
||||||
|
callService("deployments", "POST", action, marshalTemplate(template))
|
||||||
|
case "list":
|
||||||
|
callService("deployments", "GET", "list deployments", nil)
|
||||||
|
case "get":
|
||||||
|
if len(args) < 2 {
|
||||||
|
fmt.Fprintln(os.Stderr, "No deployment name supplied")
|
||||||
|
usage()
|
||||||
|
}
|
||||||
|
|
||||||
|
path := fmt.Sprintf("deployments/%s", args[1])
|
||||||
|
action := fmt.Sprintf("get deployment named %s", args[1])
|
||||||
|
callService(path, "GET", action, nil)
|
||||||
|
case "delete":
|
||||||
|
if len(args) < 2 {
|
||||||
|
fmt.Fprintln(os.Stderr, "No deployment name supplied")
|
||||||
|
usage()
|
||||||
|
}
|
||||||
|
|
||||||
|
path := fmt.Sprintf("deployments/%s", args[1])
|
||||||
|
action := fmt.Sprintf("delete deployment named %s", args[1])
|
||||||
|
callService(path, "DELETE", action, nil)
|
||||||
|
case "update":
|
||||||
|
template := loadTemplate(args)
|
||||||
|
path := fmt.Sprintf("deployments/%s", template.Name)
|
||||||
|
action := fmt.Sprintf("delete deployment named %s", template.Name)
|
||||||
|
callService(path, "PUT", action, marshalTemplate(template))
|
||||||
|
case "deployed-types":
|
||||||
|
action := fmt.Sprintf("list types in registry %s", *type_registry)
|
||||||
|
callService("types", "GET", action, nil)
|
||||||
|
case "deployed-instances":
|
||||||
|
if len(args) < 2 {
|
||||||
|
fmt.Fprintln(os.Stderr, "No type name supplied")
|
||||||
|
usage()
|
||||||
|
}
|
||||||
|
|
||||||
|
path := fmt.Sprintf("types/%s/instances", url.QueryEscape(args[1]))
|
||||||
|
action := fmt.Sprintf("list instances of type %s in registry %s", args[1], *type_registry)
|
||||||
|
callService(path, "GET", action, nil)
|
||||||
|
default:
|
||||||
|
usage()
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func callService(path, method, action string, reader io.ReadCloser) {
|
||||||
|
u := fmt.Sprintf("%s/%s", *service, path)
|
||||||
|
request, err := http.NewRequest(method, u, reader)
|
||||||
|
request.Header.Add("Content-Type", "application/json")
|
||||||
|
response, err := http.DefaultClient.Do(request)
|
||||||
|
if err != nil {
|
||||||
|
log.Fatalf("cannot %s: %s\n", action, err)
|
||||||
|
}
|
||||||
|
|
||||||
|
defer response.Body.Close()
|
||||||
|
body, err := ioutil.ReadAll(response.Body)
|
||||||
|
if err != nil {
|
||||||
|
log.Fatalf("cannot %s: %s\n", action, err)
|
||||||
|
}
|
||||||
|
|
||||||
|
if response.StatusCode < http.StatusOK ||
|
||||||
|
response.StatusCode >= http.StatusMultipleChoices {
|
||||||
|
message := fmt.Sprintf("status code: %d status: %s : %s", response.StatusCode, response.Status, body)
|
||||||
|
log.Fatalf("cannot %s: %s\n", action, message)
|
||||||
|
}
|
||||||
|
|
||||||
|
fmt.Println(string(body))
|
||||||
|
}
|
||||||
|
|
||||||
|
func loadTemplate(args []string) *expander.Template {
|
||||||
|
var template *expander.Template
|
||||||
|
var err error
|
||||||
|
if len(args) < 2 {
|
||||||
|
fmt.Fprintln(os.Stderr, "No type name or template file(s) supplied")
|
||||||
|
usage()
|
||||||
|
}
|
||||||
|
|
||||||
|
if len(args) < 3 {
|
||||||
|
if t := getRegistryType(args[1]); t != nil {
|
||||||
|
template = buildTemplateFromType(args[1], *t)
|
||||||
|
} else {
|
||||||
|
template, err = expander.NewTemplateFromRootTemplate(args[1])
|
||||||
|
}
|
||||||
|
} else {
|
||||||
|
template, err = expander.NewTemplateFromFileNames(args[1], args[2:])
|
||||||
|
}
|
||||||
|
|
||||||
|
if err != nil {
|
||||||
|
log.Fatalf("cannot create template from supplied arguments: %s\n", err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return template
|
||||||
|
}
|
||||||
|
|
||||||
|
// TODO: needs better validation that this is actually a registry type.
|
||||||
|
func getRegistryType(fullType string) *registry.Type {
|
||||||
|
tList := strings.Split(fullType, ":")
|
||||||
|
if len(tList) != 2 {
|
||||||
|
return nil
|
||||||
|
}
|
||||||
|
|
||||||
|
return ®istry.Type{
|
||||||
|
Name: tList[0],
|
||||||
|
Version: tList[1],
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func buildTemplateFromType(name string, t registry.Type) *expander.Template {
|
||||||
|
git := getGitRegistry()
|
||||||
|
downloadURL, err := git.GetURL(t)
|
||||||
|
if err != nil {
|
||||||
|
log.Fatalf("Failed to get download URL for type %s:%s\n%s\n", t.Name, t.Version, err)
|
||||||
|
}
|
||||||
|
|
||||||
|
props := make(map[string]interface{})
|
||||||
|
if *properties != "" {
|
||||||
|
plist := strings.Split(*properties, ",")
|
||||||
|
for _, p := range plist {
|
||||||
|
ppair := strings.Split(p, "=")
|
||||||
|
if len(ppair) != 2 {
|
||||||
|
log.Fatalf("--properties must be in the form \"p1=v1,p2=v2,...\": %s\n", p)
|
||||||
|
}
|
||||||
|
|
||||||
|
// support ints
|
||||||
|
// TODO: needs to support other types.
|
||||||
|
i, err := strconv.Atoi(ppair[1])
|
||||||
|
if err != nil {
|
||||||
|
props[ppair[0]] = ppair[1]
|
||||||
|
} else {
|
||||||
|
props[ppair[0]] = i
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
config := manager.Configuration{Resources: []*manager.Resource{&manager.Resource{
|
||||||
|
Name: name,
|
||||||
|
Type: downloadURL,
|
||||||
|
Properties: props,
|
||||||
|
}}}
|
||||||
|
|
||||||
|
y, err := yaml.Marshal(config)
|
||||||
|
if err != nil {
|
||||||
|
log.Fatalf("error: %s\ncannot create configuration for deployment: %v\n", err, config)
|
||||||
|
}
|
||||||
|
|
||||||
|
return &expander.Template{
|
||||||
|
// Name will be set later.
|
||||||
|
Content: string(y),
|
||||||
|
// No imports, as this is a single type from repository.
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
func marshalTemplate(template *expander.Template) io.ReadCloser {
|
||||||
|
j, err := json.Marshal(template)
|
||||||
|
if err != nil {
|
||||||
|
log.Fatalf("cannot deploy template %s: %s\n", template.Name, err)
|
||||||
|
}
|
||||||
|
|
||||||
|
return ioutil.NopCloser(bytes.NewReader(j))
|
||||||
|
}
|
||||||
|
|
||||||
|
func getRandomName() string {
|
||||||
|
return fmt.Sprintf("manifest-%d", time.Now().UTC().UnixNano())
|
||||||
|
}
|
||||||
@ -1,32 +0,0 @@
|
|||||||
{% set REDIS_PORT = 6379 %}
|
|
||||||
{% set WORKERS = properties['workers'] or 2 %}
|
|
||||||
|
|
||||||
resources:
|
|
||||||
- name: redis-master
|
|
||||||
type: https://raw.githubusercontent.com/kubernetes/deployment-manager/master/examples/replicatedservice/replicatedservice.py
|
|
||||||
properties:
|
|
||||||
# This has to be overwritten since service names are hard coded in the code
|
|
||||||
service_name: redis-master
|
|
||||||
service_port: {{ REDIS_PORT }}
|
|
||||||
target_port: {{ REDIS_PORT }}
|
|
||||||
container_port: {{ REDIS_PORT }}
|
|
||||||
replicas: 1
|
|
||||||
container_name: master
|
|
||||||
image: redis
|
|
||||||
|
|
||||||
- name: redis-slave
|
|
||||||
type: https://raw.githubusercontent.com/kubernetes/deployment-manager/master/examples/replicatedservice/replicatedservice.py
|
|
||||||
properties:
|
|
||||||
# This has to be overwritten since service names are hard coded in the code
|
|
||||||
service_name: redis-slave
|
|
||||||
service_port: {{ REDIS_PORT }}
|
|
||||||
container_port: {{ REDIS_PORT }}
|
|
||||||
replicas: {{ WORKERS }}
|
|
||||||
container_name: worker
|
|
||||||
image: kubernetes/redis-slave:v2
|
|
||||||
# An example of how to specify env variables.
|
|
||||||
env:
|
|
||||||
- name: GET_HOSTS_FROM
|
|
||||||
value: env
|
|
||||||
- name: REDIS_MASTER_SERVICE_HOST
|
|
||||||
value: redis-master
|
|
||||||
@ -1,10 +0,0 @@
|
|||||||
info:
|
|
||||||
title: Redis cluster
|
|
||||||
description: Defines a redis cluster, using a single replica
|
|
||||||
replicatedservice for master and replicatedservice for workers.
|
|
||||||
|
|
||||||
properties:
|
|
||||||
workers:
|
|
||||||
type: int
|
|
||||||
default: 2
|
|
||||||
description: Number of worker replicas.
|
|
||||||
@ -1,169 +0,0 @@
|
|||||||
"""Defines a ReplicatedService type by creating both a Service and an RC.
|
|
||||||
|
|
||||||
This module creates a typical abstraction for running a service in a
|
|
||||||
Kubernetes cluster, namely a replication controller and a service packaged
|
|
||||||
together into a single unit.
|
|
||||||
"""
|
|
||||||
|
|
||||||
import yaml
|
|
||||||
|
|
||||||
SERVICE_TYPE_COLLECTION = 'Service'
|
|
||||||
RC_TYPE_COLLECTION = 'ReplicationController'
|
|
||||||
|
|
||||||
|
|
||||||
def GenerateConfig(context):
|
|
||||||
"""Generates a Replication Controller and a matching Service.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
context: Template context. See schema for context properties.
|
|
||||||
|
|
||||||
Returns:
|
|
||||||
A Container Manifest as a YAML string.
|
|
||||||
"""
|
|
||||||
# YAML config that we're going to create for both RC & Service
|
|
||||||
config = {'resources': []}
|
|
||||||
|
|
||||||
name = context.env['name']
|
|
||||||
container_name = context.properties.get('container_name', name)
|
|
||||||
namespace = context.properties.get('namespace', 'default')
|
|
||||||
|
|
||||||
# Define things that the Service cares about
|
|
||||||
service_name = context.properties.get('service_name', name + '-service')
|
|
||||||
service_type = SERVICE_TYPE_COLLECTION
|
|
||||||
|
|
||||||
# Define things that the Replication Controller (rc) cares about
|
|
||||||
rc_name = name + '-rc'
|
|
||||||
rc_type = RC_TYPE_COLLECTION
|
|
||||||
|
|
||||||
service = {
|
|
||||||
'name': service_name,
|
|
||||||
'type': service_type,
|
|
||||||
'properties': {
|
|
||||||
'apiVersion': 'v1',
|
|
||||||
'kind': 'Service',
|
|
||||||
'namespace': namespace,
|
|
||||||
'metadata': {
|
|
||||||
'name': service_name,
|
|
||||||
'labels': GenerateLabels(context, service_name),
|
|
||||||
},
|
|
||||||
'spec': {
|
|
||||||
'ports': [GenerateServicePorts(context, container_name)],
|
|
||||||
'selector': GenerateLabels(context, name)
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
set_up_external_lb = context.properties.get('external_service', None)
|
|
||||||
if set_up_external_lb:
|
|
||||||
service['properties']['spec']['type'] = 'LoadBalancer'
|
|
||||||
config['resources'].append(service)
|
|
||||||
|
|
||||||
rc = {
|
|
||||||
'name': rc_name,
|
|
||||||
'type': rc_type,
|
|
||||||
'properties': {
|
|
||||||
'apiVersion': 'v1',
|
|
||||||
'kind': 'ReplicationController',
|
|
||||||
'namespace': namespace,
|
|
||||||
'metadata': {
|
|
||||||
'name': rc_name,
|
|
||||||
'labels': GenerateLabels(context, rc_name),
|
|
||||||
},
|
|
||||||
'spec': {
|
|
||||||
'replicas': context.properties['replicas'],
|
|
||||||
'selector': GenerateLabels(context, name),
|
|
||||||
'template': {
|
|
||||||
'metadata': {
|
|
||||||
'labels': GenerateLabels(context, name),
|
|
||||||
},
|
|
||||||
'spec': {
|
|
||||||
'containers': [
|
|
||||||
{
|
|
||||||
'env': GenerateEnv(context),
|
|
||||||
'name': container_name,
|
|
||||||
'image': context.properties['image'],
|
|
||||||
'ports': [
|
|
||||||
{
|
|
||||||
'name': container_name,
|
|
||||||
'containerPort': context.properties['container_port'],
|
|
||||||
}
|
|
||||||
]
|
|
||||||
}
|
|
||||||
]
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
config['resources'].append(rc)
|
|
||||||
return yaml.dump(config)
|
|
||||||
|
|
||||||
|
|
||||||
# Generates labels either from the context.properties['labels'] or generates
|
|
||||||
# a default label 'name':name
|
|
||||||
def GenerateLabels(context, name):
|
|
||||||
"""Generates labels from context.properties['labels'] or creates default.
|
|
||||||
|
|
||||||
We make a deep copy of the context.properties['labels'] section to avoid
|
|
||||||
linking in the yaml document, which I believe reduces readability of the
|
|
||||||
expanded template. If no labels are given, generate a default 'name':name.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
context: Template context, which can contain the following properties:
|
|
||||||
labels - Labels to generate
|
|
||||||
|
|
||||||
Returns:
|
|
||||||
A dict containing labels in a name:value format
|
|
||||||
"""
|
|
||||||
tmp_labels = context.properties.get('labels', None)
|
|
||||||
ret_labels = {'name': name}
|
|
||||||
if isinstance(tmp_labels, dict):
|
|
||||||
for key, value in tmp_labels.iteritems():
|
|
||||||
ret_labels[key] = value
|
|
||||||
return ret_labels
|
|
||||||
|
|
||||||
|
|
||||||
def GenerateServicePorts(context, name):
|
|
||||||
"""Generates a ports section for a service.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
context: Template context, which can contain the following properties:
|
|
||||||
service_port - Port to use for the service
|
|
||||||
target_port - Target port for the service
|
|
||||||
protocol - Protocol to use.
|
|
||||||
|
|
||||||
Returns:
|
|
||||||
A dict containing a port definition
|
|
||||||
"""
|
|
||||||
service_port = context.properties.get('service_port', None)
|
|
||||||
target_port = context.properties.get('target_port', None)
|
|
||||||
protocol = context.properties.get('protocol')
|
|
||||||
|
|
||||||
ports = {}
|
|
||||||
if name:
|
|
||||||
ports['name'] = name
|
|
||||||
if service_port:
|
|
||||||
ports['port'] = service_port
|
|
||||||
if target_port:
|
|
||||||
ports['targetPort'] = target_port
|
|
||||||
if protocol:
|
|
||||||
ports['protocol'] = protocol
|
|
||||||
|
|
||||||
return ports
|
|
||||||
|
|
||||||
def GenerateEnv(context):
|
|
||||||
"""Generates environmental variables for a pod.
|
|
||||||
|
|
||||||
Args:
|
|
||||||
context: Template context, which can contain the following properties:
|
|
||||||
env - Environment variables to set.
|
|
||||||
|
|
||||||
Returns:
|
|
||||||
A list containing env variables in dict format {name: 'name', value: 'value'}
|
|
||||||
"""
|
|
||||||
env = []
|
|
||||||
tmp_env = context.properties.get('env', [])
|
|
||||||
for entry in tmp_env:
|
|
||||||
if isinstance(entry, dict):
|
|
||||||
env.append({'name': entry.get('name'), 'value': entry.get('value')})
|
|
||||||
return env
|
|
||||||
@ -1,57 +0,0 @@
|
|||||||
info:
|
|
||||||
title: Replicated Service
|
|
||||||
description: |
|
|
||||||
Defines a ReplicatedService type by creating both a Service and an RC.
|
|
||||||
|
|
||||||
This module creates a typical abstraction for running a service in a
|
|
||||||
Kubernetes cluster, namely a replication controller and a service packaged
|
|
||||||
together into a single unit.
|
|
||||||
|
|
||||||
required:
|
|
||||||
- image
|
|
||||||
|
|
||||||
properties:
|
|
||||||
container_name:
|
|
||||||
type: string
|
|
||||||
description: Name to use for container. If omitted, name is used.
|
|
||||||
service_name:
|
|
||||||
type: string
|
|
||||||
description: Name to use for service. If omitted, name-service is used.
|
|
||||||
namespace:
|
|
||||||
type: string
|
|
||||||
description: Namespace to create resources in. If omitted, 'default' is
|
|
||||||
used.
|
|
||||||
default: default
|
|
||||||
protocol:
|
|
||||||
type: string
|
|
||||||
description: Protocol to use for the service.
|
|
||||||
service_port:
|
|
||||||
type: int
|
|
||||||
description: Port to use for the service.
|
|
||||||
target_port:
|
|
||||||
type: int
|
|
||||||
description: Target port to use for the service.
|
|
||||||
container_port:
|
|
||||||
type: int
|
|
||||||
description: Port to use for the container.
|
|
||||||
replicas:
|
|
||||||
type: int
|
|
||||||
description: Number of replicas to create in RC.
|
|
||||||
image:
|
|
||||||
type: string
|
|
||||||
description: Docker image to use for replicas.
|
|
||||||
labels:
|
|
||||||
type: object
|
|
||||||
description: Labels to apply.
|
|
||||||
env:
|
|
||||||
type: object
|
|
||||||
description: Environment variables to apply.
|
|
||||||
properties:
|
|
||||||
name:
|
|
||||||
type: string
|
|
||||||
value:
|
|
||||||
type: string
|
|
||||||
external_service:
|
|
||||||
type: boolean
|
|
||||||
description: If set to true, enable external load balancer.
|
|
||||||
|
|
||||||
Loading…
Reference in new issue