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aksengine.go
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aksengine.go
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/*
Copyright 2018 The Kubernetes Authors.
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 (
"context"
"encoding/json"
"errors"
"flag"
"fmt"
"io/ioutil"
"log"
"math/rand"
"net/http"
"net/url"
"os"
"os/exec"
"path"
"path/filepath"
"strconv"
"strings"
"time"
"k8s.io/test-infra/kubetest/e2e"
"k8s.io/test-infra/kubetest/process"
"k8s.io/test-infra/kubetest/util"
"github.com/Azure/azure-storage-blob-go/azblob"
"github.com/Azure/go-autorest/autorest/azure"
uuid "github.com/satori/go.uuid"
)
const (
winZipTemplate = "win-zip-%s.zip"
k8sNodeTarballTemplate = "kubernetes-node-linux-amd64-%s.tar.gz"
azureBlobContainerURLTemplate = "https://%s.blob.core.windows.net/%s"
)
var (
aksResourceName = flag.String("aksengine-resource-name", "", "Azure Resource Name")
aksResourceGroupName = flag.String("aksengine-resourcegroup-name", "", "Azure Resource Group Name")
aksLocation = flag.String("aksengine-location", "", "Azure AKS location")
aksMasterVMSize = flag.String("aksengine-mastervmsize", "", "Azure Master VM size")
aksAgentVMSize = flag.String("aksengine-agentvmsize", "", "Azure Agent VM size")
aksAdminUsername = flag.String("aksengine-admin-username", "", "Admin username")
aksAdminPassword = flag.String("aksengine-admin-password", "", "Admin password")
aksAgentPoolCount = flag.Int("aksengine-agentpoolcount", 0, "Azure Agent Pool Count")
aksTemplateURL = flag.String("aksengine-template-url", "", "Azure Template URL.")
aksDNSPrefix = flag.String("aksengine-dnsprefix", "", "Azure K8s Master DNS Prefix")
aksEngineURL = flag.String("aksengine-download-url", "", "Download URL for AKS engine")
aksEngineMD5 = flag.String("aksengine-md5-sum", "", "Checksum for aks engine download")
aksSSHPublicKeyPath = flag.String("aksengine-public-key", "", "Path to SSH Public Key")
aksSSHPrivateKeyPath = flag.String("aksengine-private-key", "", "Path to SSH Private Key")
aksWinBinaries = flag.Bool("aksengine-win-binaries", false, "Set to True if you want kubetest to build a custom zip with windows binaries for aks-engine")
aksCcm = flag.Bool("aksengine-ccm", false, "Set to True if you want kubetest to build a custom cloud controller manager for aks-engine")
aksCnm = flag.Bool("aksengine-cnm", false, "Set to True if you want kubetest to build a custom cloud node manager for aks-engine. Require --aksengine-ccm to be true")
aksCredentialsFile = flag.String("aksengine-creds", "", "Path to credential file for Azure")
aksOrchestratorRelease = flag.String("aksengine-orchestratorRelease", "", "Orchestrator Profile for aks-engine")
aksWinZipBuildScript = flag.String("aksengine-winZipBuildScript", "https://raw.githubusercontent.com/Azure/aks-engine/master/scripts/build-windows-k8s.sh", "Build script to create custom zip containing win binaries for aks-engine")
aksNetworkPlugin = flag.String("aksengine-networkPlugin", "azure", "Network pluging to use with aks-engine")
aksAzureEnv = flag.String("aksengine-azure-env", "AzurePublicCloud", "The target Azure cloud")
aksIdentitySystem = flag.String("aksengine-identity-system", "azure_ad", "identity system (default:`azure_ad`, `adfs`)")
aksCustomCloudURL = flag.String("aksengine-custom-cloud-url", "", "management portal URL to use in custom Azure cloud (i.e Azure Stack etc)")
aksDeployCustomK8s = flag.Bool("aksengine-deploy-custom-k8s", false, "Set to True if you want to deploy custom-built k8s via aks-engine")
aksCheckParams = flag.Bool("aksengine-check-params", true, "Set to True if you want to validate your input parameters")
aksDumpClusterLogs = flag.Bool("aksengine-dump-cluster-logs", true, "Set to True if you want to dump cluster logs")
aksNodeProblemDetector = flag.Bool("aksengine-node-problem-detector", false, "Set to True if you want to enable node problem detector addon")
testCcm = flag.Bool("test-ccm", false, "Set to True if you want kubetest to run e2e tests for ccm")
testAzureFileCSIDriver = flag.Bool("test-azure-file-csi-driver", false, "Set to True if you want kubetest to run e2e tests for Azure File CSI driver")
testAzureDiskCSIDriver = flag.Bool("test-azure-disk-csi-driver", false, "Set to True if you want kubetest to run e2e tests for Azure Disk CSI driver")
testBlobfuseCSIDriver = flag.Bool("test-blobfuse-csi-driver", false, "Set to True if you want kubetest to run e2e tests for Blobfuse CSI driver")
// Commonly used variables
k8sVersion = getImageVersion(util.K8s("kubernetes"))
cloudProviderAzureVersion = getImageVersion(util.K8sSigs("cloud-provider-azure"))
imageRegistry = os.Getenv("REGISTRY")
k8sNodeTarballDir = util.K8s("kubernetes", "_output", "release-tars") // contains custom-built kubelet and kubectl
// kubemark scale tests
buildWithKubemark = flag.Bool("build-with-kubemark", false, "Enable building clusters with kubemark")
kubemarkBuildScriptURL = flag.String("kubemark-build-script-url", "", "URL to the building script of kubemark and kubemark-external cluster")
kubemarkClusterTemplateURL = flag.String("kubemark-cluster-template-url", "", "URL to the aks-engine template of kubemark cluster")
externalClusterTemplateURL = flag.String("external-cluster-template-url", "", "URL to the aks-engine template of kubemark external cluster")
hollowNodesDeploymentURL = flag.String("hollow-nodes-deployment-url", "", "URL to the deployment configuration file of hollow nodes")
clusterLoader2BinURL = flag.String("clusterloader2-bin-url", "", "URL to the binary of clusterloader2")
kubemarkLocation = flag.String("kubemark-location", "southcentralus", "The location where the kubemark and external clusters run")
kubemarkSize = flag.String("kubemark-size", "100", "The number of hollow nodes in kubemark cluster")
)
const (
// AzureStackCloud is a const string reference identifier for Azure Stack cloud
AzureStackCloud = "AzureStackCloud"
// ADFSIdentitySystem is a const for ADFS identifier on Azure Stack cloud
ADFSIdentitySystem = "adfs"
)
const (
ccmImageName = "azure-cloud-controller-manager"
cnmImageName = "azure-cloud-node-manager"
cnmAddonName = "cloud-node-manager"
nodeProblemDetectorAddonName = "node-problem-detector"
hyperkubeImageName = "hyperkube-amd64"
kubeAPIServerImageName = "kube-apiserver-amd64"
kubeControllerManagerImageName = "kube-controller-manager-amd64"
kubeSchedulerImageName = "kube-scheduler-amd64"
kubeProxyImageName = "kube-proxy-amd64"
)
const (
vmTypeVMSS = "vmss"
vmTypeStandard = "standard"
availabilityProfileVMSS = "VirtualMachineScaleSets"
)
type aksDeploymentMethod int
const (
// https://github.com/Azure/aks-engine/blob/master/docs/topics/kubernetes-developers.md#kubernetes-116-or-earlier
customHyperkube aksDeploymentMethod = iota
// https://github.com/Azure/aks-engine/blob/master/docs/topics/kubernetes-developers.md#kubernetes-117
customK8sComponents
noop
)
type Creds struct {
ClientID string
ClientSecret string
TenantID string
SubscriptionID string
StorageAccountName string
StorageAccountKey string
}
type Config struct {
Creds Creds
}
type aksEngineDeployer struct {
ctx context.Context
credentials *Creds
location string
resourceGroup string
name string
apiModelPath string
dnsPrefix string
templateJSON map[string]interface{}
parametersJSON map[string]interface{}
outputDir string
sshPublicKey string
sshPrivateKeyPath string
adminUsername string
adminPassword string
masterVMSize string
agentVMSize string
customHyperkubeImage string
aksCustomWinBinariesURL string
aksEngineBinaryPath string
customCcmImage string // custom cloud controller manager (ccm) image
customCnmImage string // custom cloud node manager (cnm) image
customKubeAPIServerImage string
customKubeControllerManagerImage string
customKubeProxyImage string
customKubeSchedulerImage string
customKubeBinaryURL string
azureEnvironment string
azureIdentitySystem string
azureCustomCloudURL string
agentPoolCount int
k8sVersion string
networkPlugin string
azureClient *AzureClient
aksDeploymentMethod aksDeploymentMethod
useManagedIdentity bool
identityName string
azureBlobContainerURL string
}
// IsAzureStackCloud return true if the cloud is AzureStack
func (c *aksEngineDeployer) isAzureStackCloud() bool {
return c.azureCustomCloudURL != "" && strings.EqualFold(c.azureEnvironment, AzureStackCloud)
}
// SetCustomCloudProfileEnvironment retrieves the endpoints from Azure Stack metadata endpoint and sets the values for azure.Environment
func (c *aksEngineDeployer) SetCustomCloudProfileEnvironment() error {
var environmentJSON string
if c.isAzureStackCloud() {
env := azure.Environment{}
env.Name = c.azureEnvironment
azsFQDNSuffix := strings.Replace(c.azureCustomCloudURL, fmt.Sprintf("https://portal.%s.", c.location), "", -1)
azsFQDNSuffix = strings.TrimSuffix(azsFQDNSuffix, "/")
env.ResourceManagerEndpoint = fmt.Sprintf("https://management.%s.%s/", c.location, azsFQDNSuffix)
metadataURL := fmt.Sprintf("%s/metadata/endpoints?api-version=1.0", strings.TrimSuffix(env.ResourceManagerEndpoint, "/"))
// Retrieve the metadata
httpClient := &http.Client{
Timeout: 30 * time.Second,
}
endpointsresp, err := httpClient.Get(metadataURL)
if err != nil || endpointsresp.StatusCode != 200 {
return fmt.Errorf("%s . apimodel invalid: failed to retrieve Azure Stack endpoints from %s", err, metadataURL)
}
body, err := ioutil.ReadAll(endpointsresp.Body)
if err != nil {
return fmt.Errorf("%s . apimodel invalid: failed to read the response from %s", err, metadataURL)
}
endpoints := AzureStackMetadataEndpoints{}
err = json.Unmarshal(body, &endpoints)
if err != nil {
return fmt.Errorf("%s . apimodel invalid: failed to parse the response from %s", err, metadataURL)
}
if endpoints.GraphEndpoint == "" || endpoints.Authentication == nil || endpoints.Authentication.LoginEndpoint == "" || len(endpoints.Authentication.Audiences) == 0 || endpoints.Authentication.Audiences[0] == "" {
return fmt.Errorf("%s . apimodel invalid: invalid response from %s", err, metadataURL)
}
env.GraphEndpoint = endpoints.GraphEndpoint
env.ServiceManagementEndpoint = endpoints.Authentication.Audiences[0]
env.GalleryEndpoint = endpoints.GalleryEndpoint
env.ActiveDirectoryEndpoint = endpoints.Authentication.LoginEndpoint
if strings.EqualFold(c.azureIdentitySystem, ADFSIdentitySystem) {
env.ActiveDirectoryEndpoint = strings.TrimSuffix(env.ActiveDirectoryEndpoint, "/")
env.ActiveDirectoryEndpoint = strings.TrimSuffix(env.ActiveDirectoryEndpoint, ADFSIdentitySystem)
}
env.ManagementPortalURL = endpoints.PortalEndpoint
env.ResourceManagerVMDNSSuffix = fmt.Sprintf("cloudapp.%s", azsFQDNSuffix)
env.StorageEndpointSuffix = fmt.Sprintf("%s.%s", c.location, azsFQDNSuffix)
env.KeyVaultDNSSuffix = fmt.Sprintf("vault.%s.%s", c.location, azsFQDNSuffix)
bytes, err := json.Marshal(env)
if err != nil {
return fmt.Errorf("Could not serialize Environment object - %s", err.Error())
}
environmentJSON = string(bytes)
// Create and update the file.
tmpFile, err := ioutil.TempFile("", "azurestackcloud.json")
tmpFileName := tmpFile.Name()
if err != nil {
return err
}
// Build content for the file
if err = ioutil.WriteFile(tmpFileName, []byte(environmentJSON), os.ModeAppend); err != nil {
return err
}
os.Setenv("AZURE_ENVIRONMENT_FILEPATH", tmpFileName)
}
return nil
}
func validateAzureStackCloudProfile() error {
if *aksLocation == "" {
return fmt.Errorf("no location specified for Azure Stack")
}
if *aksCustomCloudURL == "" {
return fmt.Errorf("no custom cloud portal URL specified for Azure Stack")
}
if !strings.HasPrefix(*aksCustomCloudURL, fmt.Sprintf("https://portal.%s.", *aksLocation)) {
return fmt.Errorf("custom cloud portal URL needs to start with https://portal.%s. ", *aksLocation)
}
return nil
}
func randomAKSEngineLocation() string {
var AzureLocations = []string{
"westeurope",
"westus2",
"eastus2",
"southcentralus",
}
return AzureLocations[rand.Intn(len(AzureLocations))]
}
func checkParams() error {
if !*aksCheckParams {
log.Print("Skipping checkParams")
return nil
}
// Validate flags
if strings.EqualFold(*aksAzureEnv, AzureStackCloud) {
if err := validateAzureStackCloudProfile(); err != nil {
return err
}
} else if *aksLocation == "" {
*aksLocation = randomAKSEngineLocation()
}
if *aksCredentialsFile == "" {
return fmt.Errorf("no credentials file path specified")
}
if *aksResourceName == "" {
*aksResourceName = "kubetest-" + uuid.NewV1().String()
}
if *aksResourceGroupName == "" {
*aksResourceGroupName = *aksResourceName
}
if *aksDNSPrefix == "" {
*aksDNSPrefix = *aksResourceName
}
if *aksSSHPublicKeyPath == "" {
*aksSSHPublicKeyPath = os.Getenv("HOME") + "/.ssh/id_rsa.pub"
}
if *aksSSHPrivateKeyPath == "" {
*aksSSHPrivateKeyPath = os.Getenv("HOME") + "/.ssh/id_rsa"
}
if !*buildWithKubemark && *aksTemplateURL == "" {
return fmt.Errorf("no ApiModel URL specified, *buildWithKubemark=%v\n", *buildWithKubemark)
}
if *aksCnm && !*aksCcm {
return fmt.Errorf("--aksengine-cnm cannot be true without --aksengine-ccm also being true")
}
return nil
}
func newAKSEngine() (*aksEngineDeployer, error) {
if err := checkParams(); err != nil {
return nil, fmt.Errorf("error creating Azure K8S cluster: %v", err)
}
tempdir, _ := ioutil.TempDir(os.Getenv("HOME"), "aks")
sshKey, err := ioutil.ReadFile(*aksSSHPublicKeyPath)
if err != nil {
if os.IsNotExist(err) {
sshKey = []byte{}
} else {
return nil, fmt.Errorf("error reading SSH Key %v %v", *aksSSHPublicKeyPath, err)
}
}
c := aksEngineDeployer{
ctx: context.Background(),
apiModelPath: *aksTemplateURL,
name: *aksResourceName,
dnsPrefix: *aksDNSPrefix,
location: *aksLocation,
resourceGroup: *aksResourceGroupName,
outputDir: tempdir,
sshPublicKey: fmt.Sprintf("%s", sshKey),
sshPrivateKeyPath: *aksSSHPrivateKeyPath,
credentials: &Creds{},
masterVMSize: *aksMasterVMSize,
agentVMSize: *aksAgentVMSize,
adminUsername: *aksAdminUsername,
adminPassword: *aksAdminPassword,
agentPoolCount: *aksAgentPoolCount,
k8sVersion: *aksOrchestratorRelease,
networkPlugin: *aksNetworkPlugin,
azureEnvironment: *aksAzureEnv,
azureIdentitySystem: *aksIdentitySystem,
azureCustomCloudURL: *aksCustomCloudURL,
customHyperkubeImage: getDockerImage(hyperkubeImageName),
customCcmImage: getDockerImage(ccmImageName),
customCnmImage: getDockerImage(cnmImageName),
customKubeAPIServerImage: getDockerImage(kubeAPIServerImageName),
customKubeControllerManagerImage: getDockerImage(kubeControllerManagerImageName),
customKubeProxyImage: getDockerImage(kubeProxyImageName),
customKubeSchedulerImage: getDockerImage(kubeSchedulerImageName),
aksEngineBinaryPath: "aks-engine", // use the one in path by default
aksDeploymentMethod: getAKSDeploymentMethod(*aksOrchestratorRelease),
useManagedIdentity: false,
identityName: "",
}
creds, err := getAzCredentials()
if err != nil {
return nil, fmt.Errorf("failed to get azure credentials: %v", err)
}
c.credentials = creds
c.azureBlobContainerURL = fmt.Sprintf(azureBlobContainerURLTemplate, c.credentials.StorageAccountName, os.Getenv("AZ_STORAGE_CONTAINER_NAME"))
c.customKubeBinaryURL = fmt.Sprintf("%s/%s", c.azureBlobContainerURL, fmt.Sprintf(k8sNodeTarballTemplate, k8sVersion))
c.aksCustomWinBinariesURL = fmt.Sprintf("%s/%s", c.azureBlobContainerURL, fmt.Sprintf(winZipTemplate, k8sVersion))
err = c.SetCustomCloudProfileEnvironment()
if err != nil {
return nil, fmt.Errorf("failed to create custom cloud profile file: %v", err)
}
err = c.getAzureClient(c.ctx)
if err != nil {
return nil, fmt.Errorf("failed to generate ARM client: %v", err)
}
// like kops and gke set KUBERNETES_CONFORMANCE_TEST so the auth is picked up
// from kubectl instead of bash inference.
if err := os.Setenv("KUBERNETES_CONFORMANCE_TEST", "yes"); err != nil {
return nil, err
}
if err := c.dockerLogin(); err != nil {
return nil, err
}
return &c, nil
}
func getAKSDeploymentMethod(k8sRelease string) aksDeploymentMethod {
if !*aksDeployCustomK8s {
return noop
}
// k8sRelease should be in the format of X.XX
s := strings.Split(k8sRelease, ".")
if len(s) != 2 {
return noop
}
minor, err := strconv.Atoi(s[1])
if err != nil {
return noop
}
// Deploy custom-built individual k8s components because
// there is no hyperkube support in aks-engine for 1.17+
if minor >= 17 {
return customK8sComponents
}
return customHyperkube
}
func (c *aksEngineDeployer) populateAPIModelTemplate() error {
var err error
v := AKSEngineAPIModel{}
if c.apiModelPath != "" {
// template already exists, read it
template, err := ioutil.ReadFile(path.Join(c.outputDir, "kubernetes.json"))
if err != nil {
return fmt.Errorf("error reading ApiModel template file: %v.", err)
}
err = json.Unmarshal(template, &v)
if err != nil {
return fmt.Errorf("error unmarshaling ApiModel template file: %v", err)
}
} else {
return fmt.Errorf("No template file specified %v", err)
}
// set default distro so we do not use prebuilt os image
if v.Properties.MasterProfile.Distro == "" {
v.Properties.MasterProfile.Distro = "ubuntu"
}
for _, agentPool := range v.Properties.AgentPoolProfiles {
if agentPool.Distro == "" {
agentPool.Distro = "ubuntu"
}
}
// replace APIModel template properties from flags
if c.location != "" {
v.Location = c.location
}
if c.name != "" {
v.Name = c.name
}
if c.k8sVersion != "" {
v.Properties.OrchestratorProfile.OrchestratorRelease = c.k8sVersion
}
if v.Properties.OrchestratorProfile.KubernetesConfig == nil {
v.Properties.OrchestratorProfile.KubernetesConfig = &KubernetesConfig{}
}
// to support aks-engine validation logic `networkPolicy 'none' is not supported with networkPlugin 'azure'`
if v.Properties.OrchestratorProfile.KubernetesConfig.NetworkPolicy != "none" && v.Properties.OrchestratorProfile.KubernetesConfig.NetworkPlugin == "" {
// default NetworkPlugin to Azure if not provided
v.Properties.OrchestratorProfile.KubernetesConfig.NetworkPlugin = c.networkPlugin
}
if c.dnsPrefix != "" {
v.Properties.MasterProfile.DNSPrefix = c.dnsPrefix
}
if c.masterVMSize != "" {
v.Properties.MasterProfile.VMSize = c.masterVMSize
}
if c.agentVMSize != "" {
for _, agentPool := range v.Properties.AgentPoolProfiles {
agentPool.VMSize = c.agentVMSize
}
}
if c.agentPoolCount != 0 {
for _, agentPool := range v.Properties.AgentPoolProfiles {
agentPool.Count = c.agentPoolCount
}
}
if c.adminUsername != "" {
v.Properties.LinuxProfile.AdminUsername = c.adminUsername
if v.Properties.WindowsProfile != nil {
v.Properties.WindowsProfile.AdminUsername = c.adminUsername
}
}
if c.adminPassword != "" {
if v.Properties.WindowsProfile != nil {
v.Properties.WindowsProfile.AdminPassword = c.adminPassword
}
}
v.Properties.LinuxProfile.SSHKeys.PublicKeys = []PublicKey{{
KeyData: c.sshPublicKey,
}}
if !toBool(v.Properties.OrchestratorProfile.KubernetesConfig.UseManagedIdentity) {
v.Properties.ServicePrincipalProfile.ClientID = c.credentials.ClientID
v.Properties.ServicePrincipalProfile.Secret = c.credentials.ClientSecret
} else {
c.useManagedIdentity = true
if v.Properties.OrchestratorProfile.KubernetesConfig.UserAssignedID != "" {
c.identityName = v.Properties.OrchestratorProfile.KubernetesConfig.UserAssignedID
} else {
c.identityName = c.resourceGroup + "-id"
v.Properties.OrchestratorProfile.KubernetesConfig.UserAssignedID = c.identityName
}
}
if *aksWinBinaries {
v.Properties.OrchestratorProfile.KubernetesConfig.CustomWindowsPackageURL = c.aksCustomWinBinariesURL
}
if *aksCcm {
useCloudControllerManager := true
v.Properties.OrchestratorProfile.KubernetesConfig.UseCloudControllerManager = &useCloudControllerManager
v.Properties.OrchestratorProfile.KubernetesConfig.CustomCcmImage = c.customCcmImage
}
if *aksCnm {
cnmAddon := KubernetesAddon{
Name: cnmAddonName,
Enabled: boolPointer(true),
Containers: []KubernetesContainerSpec{
{
Name: cnmAddonName,
Image: c.customCnmImage,
},
},
}
appendAddonToAPIModel(&v, cnmAddon)
}
if *aksNodeProblemDetector {
nodeProblemDetectorAddon := KubernetesAddon{
Name: nodeProblemDetectorAddonName,
Enabled: boolPointer(true),
}
appendAddonToAPIModel(&v, nodeProblemDetectorAddon)
}
// Populate PrivateAzureRegistryServer field if we are using ACR and custom-built k8s components
if strings.Contains(imageRegistry, "azurecr") && c.aksDeploymentMethod != noop {
v.Properties.OrchestratorProfile.KubernetesConfig.PrivateAzureRegistryServer = imageRegistry
}
switch c.aksDeploymentMethod {
case customHyperkube:
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeAPIServerImage = ""
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeControllerManagerImage = ""
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeProxyImage = ""
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeSchedulerImage = ""
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeBinaryURL = ""
v.Properties.OrchestratorProfile.KubernetesConfig.CustomHyperkubeImage = c.customHyperkubeImage
case customK8sComponents:
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeAPIServerImage = c.customKubeAPIServerImage
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeControllerManagerImage = c.customKubeControllerManagerImage
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeProxyImage = c.customKubeProxyImage
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeSchedulerImage = c.customKubeSchedulerImage
v.Properties.OrchestratorProfile.KubernetesConfig.CustomKubeBinaryURL = c.customKubeBinaryURL
v.Properties.OrchestratorProfile.KubernetesConfig.CustomHyperkubeImage = ""
}
if c.isAzureStackCloud() {
v.Properties.CustomCloudProfile.PortalURL = c.azureCustomCloudURL
}
if len(v.Properties.AgentPoolProfiles) > 0 {
// Default to VirtualMachineScaleSets if AvailabilityProfile is empty
isVMSS := v.Properties.AgentPoolProfiles[0].AvailabilityProfile == "" || v.Properties.AgentPoolProfiles[0].AvailabilityProfile == availabilityProfileVMSS
if err := c.populateAzureCloudConfig(isVMSS); err != nil {
return err
}
}
apiModel, _ := json.MarshalIndent(v, "", " ")
c.apiModelPath = path.Join(c.outputDir, "kubernetes.json")
err = ioutil.WriteFile(c.apiModelPath, apiModel, 0644)
if err != nil {
return fmt.Errorf("cannot write apimodel to file: %v", err)
}
return nil
}
func appendAddonToAPIModel(v *AKSEngineAPIModel, addon KubernetesAddon) {
// Update the addon if it already exists in the API model
for i := range v.Properties.OrchestratorProfile.KubernetesConfig.Addons {
a := &v.Properties.OrchestratorProfile.KubernetesConfig.Addons[i]
if a.Name == addon.Name {
a = &addon
return
}
}
v.Properties.OrchestratorProfile.KubernetesConfig.Addons = append(v.Properties.OrchestratorProfile.KubernetesConfig.Addons, addon)
}
func (c *aksEngineDeployer) getAKSEngine(retry int) error {
downloadPath := path.Join(os.Getenv("HOME"), "aks-engine.tar.gz")
f, err := os.Create(downloadPath)
if err != nil {
return err
}
defer f.Close()
for i := 0; i < retry; i++ {
log.Printf("downloading %v from %v.", downloadPath, *aksEngineURL)
if err := httpRead(*aksEngineURL, f); err == nil {
break
}
err = fmt.Errorf("url=%s failed get %v: %v.", *aksEngineURL, downloadPath, err)
if i == retry-1 {
return err
}
log.Println(err)
sleep(time.Duration(i) * time.Second)
}
f.Close()
if *aksEngineMD5 != "" {
o, err := control.Output(exec.Command("md5sum", f.Name()))
if err != nil {
return err
}
if strings.Split(string(o), " ")[0] != *aksEngineMD5 {
return fmt.Errorf("wrong md5 sum for aks-engine.")
}
}
cwd, err := os.Getwd()
if err != nil {
return fmt.Errorf("unable to get current directory: %v .", err)
}
log.Printf("Extracting tar file %v into directory %v .", f.Name(), cwd)
if err = control.FinishRunning(exec.Command("tar", "-xzf", f.Name(), "--strip", "1")); err != nil {
return err
}
c.aksEngineBinaryPath = path.Join(cwd, "aks-engine")
return nil
}
func (c *aksEngineDeployer) generateARMTemplates() error {
if err := control.FinishRunning(exec.Command(c.aksEngineBinaryPath, "generate", c.apiModelPath, "--output-directory", c.outputDir)); err != nil {
return fmt.Errorf("failed to generate ARM templates: %v.", err)
}
return nil
}
func (c *aksEngineDeployer) loadARMTemplates() error {
var err error
template, err := ioutil.ReadFile(path.Join(c.outputDir, "azuredeploy.json"))
if err != nil {
return fmt.Errorf("error reading ARM template file: %v.", err)
}
c.templateJSON = make(map[string]interface{})
err = json.Unmarshal(template, &c.templateJSON)
if err != nil {
return fmt.Errorf("error unmarshall template %v", err.Error())
}
parameters, err := ioutil.ReadFile(path.Join(c.outputDir, "azuredeploy.parameters.json"))
if err != nil {
return fmt.Errorf("error reading ARM parameters file: %v", err)
}
c.parametersJSON = make(map[string]interface{})
err = json.Unmarshal(parameters, &c.parametersJSON)
if err != nil {
return fmt.Errorf("error unmarshall parameters %v", err.Error())
}
c.parametersJSON = c.parametersJSON["parameters"].(map[string]interface{})
return nil
}
func (c *aksEngineDeployer) getAzureClient(ctx context.Context) error {
// instantiate Azure Resource Manager Client
env, err := azure.EnvironmentFromName(c.azureEnvironment)
var client *AzureClient
if c.isAzureStackCloud() && strings.EqualFold(c.azureIdentitySystem, ADFSIdentitySystem) {
if client, err = getAzureClient(env,
c.credentials.SubscriptionID,
c.credentials.ClientID,
c.azureIdentitySystem,
c.credentials.ClientSecret); err != nil {
return fmt.Errorf("error trying to get ADFS Azure Client: %v", err)
}
} else {
if client, err = getAzureClient(env,
c.credentials.SubscriptionID,
c.credentials.ClientID,
c.credentials.TenantID,
c.credentials.ClientSecret); err != nil {
return fmt.Errorf("error trying to get Azure Client: %v", err)
}
}
c.azureClient = client
return nil
}
func (c *aksEngineDeployer) createCluster() error {
var err error
kubecfgDir, _ := ioutil.ReadDir(path.Join(c.outputDir, "kubeconfig"))
kubecfg := path.Join(c.outputDir, "kubeconfig", kubecfgDir[0].Name())
log.Printf("Setting kubeconfig env variable: kubeconfig path: %v.", kubecfg)
os.Setenv("KUBECONFIG", kubecfg)
log.Printf("Creating resource group: %v.", c.resourceGroup)
log.Printf("Creating Azure resource group: %v for cluster deployment.", c.resourceGroup)
_, err = c.azureClient.EnsureResourceGroup(c.ctx, c.resourceGroup, c.location, nil)
if err != nil {
return fmt.Errorf("could not ensure resource group: %v", err)
}
log.Printf("Validating deployment ARM templates.")
if _, err := c.azureClient.ValidateDeployment(
c.ctx, c.resourceGroup, c.name, &c.templateJSON, &c.parametersJSON,
); err != nil {
return fmt.Errorf("ARM template invalid: %v", err)
}
log.Printf("Deploying cluster %v in resource group %v.", c.name, c.resourceGroup)
if _, err := c.azureClient.DeployTemplate(
c.ctx, c.resourceGroup, c.name, &c.templateJSON, &c.parametersJSON,
); err != nil {
return fmt.Errorf("cannot deploy: %v", err)
}
if c.useManagedIdentity && c.identityName != "" {
log.Printf("Assigning 'Owner' role to %s in %s", c.identityName, c.resourceGroup)
if err := c.azureClient.AssignOwnerRoleToIdentity(c.ctx, c.resourceGroup, c.identityName); err != nil {
return err
}
}
return nil
}
func (c *aksEngineDeployer) populateAzureCloudConfig(isVMSS bool) error {
// CLOUD_CONFIG is required when running Azure-specific e2e tests
// See https://github.com/kubernetes/kubernetes/blob/master/hack/ginkgo-e2e.sh#L113-L118
cc := map[string]string{
"cloud": c.azureEnvironment,
"tenantId": c.credentials.TenantID,
"subscriptionId": c.credentials.SubscriptionID,
"aadClientId": c.credentials.ClientID,
"aadClientSecret": c.credentials.ClientSecret,
"resourceGroup": c.resourceGroup,
"location": c.location,
}
if isVMSS {
cc["vmType"] = vmTypeVMSS
} else {
cc["vmType"] = vmTypeStandard
}
cloudConfig, err := json.MarshalIndent(cc, "", " ")
if err != nil {
return fmt.Errorf("error creating Azure cloud config: %v", err)
}
cloudConfigPath := path.Join(c.outputDir, "azure.json")
if err := ioutil.WriteFile(cloudConfigPath, cloudConfig, 0644); err != nil {
return fmt.Errorf("cannot write Azure cloud config to file: %v", err)
}
if err := os.Setenv("CLOUD_CONFIG", cloudConfigPath); err != nil {
return fmt.Errorf("error setting CLOUD_CONFIG=%s: %v", cloudConfigPath, err)
}
return nil
}
func (c *aksEngineDeployer) dockerLogin() error {
cwd, _ := os.Getwd()
log.Printf("CWD %v", cwd)
cmd := &exec.Cmd{}
username := ""
pwd := ""
server := ""
var err error
if !strings.Contains(imageRegistry, "azurecr.io") {
// if REGISTRY is not ACR, then use docker cred
log.Println("Attempting Docker login with docker cred.")
username = os.Getenv("DOCKER_USERNAME")
passwordFile := os.Getenv("DOCKER_PASSWORD_FILE")
password, err := ioutil.ReadFile(passwordFile)
if err != nil {
return fmt.Errorf("error reading docker password file %v: %v", passwordFile, err)
}
pwd = strings.TrimSuffix(string(password), "\n")
} else {
// if REGISTRY is ACR, then use azure credential
log.Println("Attempting Docker login with azure cred.")
username = c.credentials.ClientID
pwd = c.credentials.ClientSecret
server = imageRegistry
}
cmd = exec.Command("docker", "login", fmt.Sprintf("--username=%s", username), fmt.Sprintf("--password=%s", pwd), server)
if err = cmd.Run(); err != nil {
return fmt.Errorf("failed Docker login with error: %v", err)
}
log.Println("Docker login success.")
return nil
}
func dockerPush(images ...string) error {
for _, image := range images {
log.Printf("Pushing docker image %s", image)
cmd := exec.Command("docker", "push", image)
if err := cmd.Run(); err != nil {
return fmt.Errorf("failed to push %s: %v", image, err)
}
}
return nil
}
func getDockerImage(imageName string) string {
imageVersion := k8sVersion
switch imageName {
case ccmImageName, cnmImageName:
imageVersion = cloudProviderAzureVersion
}
return fmt.Sprintf("%s/%s:%s", imageRegistry, imageName, imageVersion)
}
func areAllDockerImagesExist(images ...string) bool {
for _, image := range images {
cmd := exec.Command("docker", "pull", image)
if err := cmd.Run(); err != nil {
log.Printf("%s does not exist", image)
return false
}
log.Printf("Reusing %s", image)
}
return true
}
func isURLExist(url string) bool {
cmd := exec.Command("curl", "-s", "-o", "/dev/null", "-s", "-f", url)
if err := cmd.Run(); err != nil {
log.Printf("%s does not exist", url)
return false
}
log.Printf("Reusing %s", url)
return true
}
// getImageVersion returns the image version based on the project's latest git commit
func getImageVersion(projectPath string) string {
cmd := exec.Command("git", "describe", "--tags", "--always", "--dirty")
output, err := cmd.Output()
if err != nil {
return ""
}
return strings.TrimSpace(string(output))
}
func (c *aksEngineDeployer) buildAzureCloudComponents() error {
log.Println("Building cloud controller manager and cloud node manager.")
// Set environment variables for building cloud components' images
if err := os.Setenv("IMAGE_REGISTRY", imageRegistry); err != nil {
return err
}
if err := os.Setenv("IMAGE_TAG", cloudProviderAzureVersion); err != nil {
return err
}
cmd := exec.Command("make", "-C", util.K8sSigs("cloud-provider-azure"), "image", "push")
cmd.Stdout = ioutil.Discard
if err := control.FinishRunning(cmd); err != nil {
return err
}
log.Printf("Custom cloud controller manager image: %s", c.customCcmImage)
if *aksCnm {
c.customCnmImage = getDockerImage(cnmImageName)
log.Printf("Custom cloud node manager image: %s", c.customCnmImage)
}
return nil
}
func (c *aksEngineDeployer) buildHyperkube() error {
var pushCmd *exec.Cmd
os.Setenv("VERSION", k8sVersion)
log.Println("Building hyperkube.")
if _, err := os.Stat(util.K8s("kubernetes", "cmd", "hyperkube")); err == nil {
// cmd/hyperkube binary still exists in repo
cmd := exec.Command("make", "-C", util.K8s("kubernetes"), "WHAT=cmd/hyperkube")
cmd.Stdout = ioutil.Discard
if err := control.FinishRunning(cmd); err != nil {
return err
}
hyperkubeBin := util.K8s("kubernetes", "_output", "bin", "hyperkube")
pushCmd = exec.Command("make", "-C", util.K8s("kubernetes", "cluster", "images", "hyperkube"), "push", fmt.Sprintf("HYPERKUBE_BIN=%s", hyperkubeBin))
} else if os.IsNotExist(err) {
pushCmd = exec.Command("make", "-C", util.K8s("kubernetes", "cluster", "images", "hyperkube"), "push")
}
log.Println("Pushing hyperkube.")
pushCmd.Stdout = ioutil.Discard
if err := control.FinishRunning(pushCmd); err != nil {
return err
}
log.Printf("Custom hyperkube image: %s", c.customHyperkubeImage)
return nil
}
func (c *aksEngineDeployer) uploadToAzureStorage(filePath string) (string, error) {
credential, err := azblob.NewSharedKeyCredential(c.credentials.StorageAccountName, c.credentials.StorageAccountKey)
if err != nil {
return "", fmt.Errorf("new shared key credential: %v", err)
}
p := azblob.NewPipeline(credential, azblob.PipelineOptions{})
URL, _ := url.Parse(c.azureBlobContainerURL)
containerURL := azblob.NewContainerURL(*URL, p)
file, err := os.Open(filePath)
if err != nil {
return "", fmt.Errorf("failed to open file %v . Error %v", filePath, err)
}
blobURL := containerURL.NewBlockBlobURL(filepath.Base(file.Name()))
_, err1 := azblob.UploadFileToBlockBlob(context.Background(), file, blobURL, azblob.UploadToBlockBlobOptions{})
file.Close()
if err1 != nil {
return "", err1
}
blobURLString := blobURL.URL()
log.Printf("Uploaded %s to %s", filePath, blobURLString.String())
return blobURLString.String(), nil
}
func getZipBuildScript(buildScriptURL string, retry int) (string, error) {
downloadPath := path.Join(os.Getenv("HOME"), "build-win-zip.sh")
f, err := os.Create(downloadPath)
if err != nil {
return "", err
}
defer f.Close()
for i := 0; i < retry; i++ {
log.Printf("downloading %v from %v.", downloadPath, buildScriptURL)
if err := httpRead(buildScriptURL, f); err == nil {
break
}
err = fmt.Errorf("url=%s failed get %v: %v.", buildScriptURL, downloadPath, err)
if i == retry-1 {
return "", err
}
log.Println(err)
sleep(time.Duration(i) * time.Second)
}
f.Chmod(0744)
return downloadPath, nil
}
func (c *aksEngineDeployer) buildWinZip() error {
zipName := fmt.Sprintf(winZipTemplate, k8sVersion)
buildFolder := path.Join(os.Getenv("HOME"), "winbuild")
zipPath := path.Join(os.Getenv("HOME"), zipName)
log.Printf("Building %s", zipName)
buildScriptPath, err := getZipBuildScript(*aksWinZipBuildScript, 2)
if err != nil {
return err
}
// the build script for the windows binaries will produce a lot of output. Capture it here.
cmd := exec.Command(buildScriptPath, "-u", zipName, "-z", buildFolder)
cmd.Stdout = ioutil.Discard
if err := control.FinishRunning(cmd); err != nil {
return err
}
log.Printf("Uploading %s", zipPath)
if c.aksCustomWinBinariesURL, err = c.uploadToAzureStorage(zipPath); err != nil {
return err
}
return nil
}