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aks_driver.go
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package main
import (
"context"
"encoding/base64"
"encoding/json"
"fmt"
"io/ioutil"
"regexp"
"strings"
"time"
"github.com/Azure/azure-sdk-for-go/services/containerservice/mgmt/2018-03-31/containerservice"
"github.com/Azure/azure-sdk-for-go/services/preview/network/mgmt/2015-05-01-preview/network"
"github.com/Azure/azure-sdk-for-go/services/preview/operationalinsights/mgmt/2015-11-01-preview/operationalinsights"
"github.com/Azure/azure-sdk-for-go/services/resources/mgmt/2017-05-10/resources"
"github.com/Azure/go-autorest/autorest"
"github.com/Azure/go-autorest/autorest/adal"
"github.com/Azure/go-autorest/autorest/azure"
"github.com/Azure/go-autorest/autorest/to"
"github.com/rancher/kontainer-engine/drivers/options"
"github.com/rancher/kontainer-engine/drivers/util"
"github.com/rancher/kontainer-engine/types"
"github.com/sirupsen/logrus"
yaml "gopkg.in/yaml.v2"
"k8s.io/apimachinery/pkg/util/wait"
"k8s.io/client-go/kubernetes"
"k8s.io/client-go/rest"
)
var redactionRegex = regexp.MustCompile("\"(clientId|secret)\": \"(.*)\"")
type Driver struct {
driverCapabilities types.Capabilities
}
type state struct {
/**
Azure Kubernetes Service API URI Parameters
*/
// SubscriptionID is a credential which uniquely identify Azure subscription. [requirement]
SubscriptionID string `json:"subscriptionId"`
// ResourceGroup specifies the cluster located int which resource group. [requirement]
ResourceGroup string `json:"resourceGroup"`
// Name specifies the cluster name. [requirement]
Name string `json:"name"`
/**
Azure Kubernetes Service API Request Body
*/
// AzureADClientAppID specifies the client ID of Azure Active Directory. [optional when creating]
AzureADClientAppID string `json:"aadClientAppId,omitempty"`
// AzureADServerAppID specifies the server ID of Azure Active Directory. [optional when creating]
AzureADServerAppID string `json:"aadServerAppId,omitempty"`
// AzureADServerAppSecret specifies the server secret of Azure Active Directory. [optional when creating]
AzureADServerAppSecret string `json:"aadServerAppSecret,omitempty"`
// AzureADTenantID specifies the tenant ID of Azure Active Directory. [optional when creating]
AzureADTenantID string `json:"aadTenantId,omitempty"`
// AddonEnableHTTPApplicationRouting specifies to enable "httpApplicationRouting" addon or not. [optional]
AddonEnableHTTPApplicationRouting bool `json:"enableHttpApplicationRouting,omitempty"`
// AddonEnableMonitoring specifies to enable "monitoring" addon or not. [optional]
AddonEnableMonitoring bool `json:"enableMonitoring,omitempty"`
// LogAnalyticsWorkspaceResourceGroup specifies the Azure Log Analytics Workspace located int which resource group. [optional]
LogAnalyticsWorkspaceResourceGroup string `json:"logAnalyticsWorkspaceResourceGroup,omitempty"`
// LogAnalyticsWorkspace specifies an existing Azure Log Analytics Workspace for "monitoring" addon. [optional]
LogAnalyticsWorkspace string `json:"logAnalyticsWorkspace,omitempty"`
// AgentDNSPrefix specifies the DNS prefix of the agent pool. [optional only when creating]
AgentDNSPrefix string `json:"agentDnsPrefix,omitempty"`
// AgentCount specifies the number of machines in the agent pool. [optional only when creating]
AgentCount int64 `json:"count,omitempty"`
// AgentMaxPods specifies the maximum number of pods that can run on a node. [optional only when creating]
AgentMaxPods int64 `json:"maxPods,omitempty"`
// AgentName specifies an unique name of the agent pool in the context of the subscription and resource group. [optional only when creating]
AgentName string `json:"agentPoolName,omitempty"`
// AgentOsdiskSizeGB specifies the disk size for every machine in the agent pool. [optional only when creating]
AgentOsdiskSizeGB int64 `json:"agentOsdiskSize,omitempty"`
// AgentStorageProfile specifies the storage profile in the agent pool. [optional only when creating]
AgentStorageProfile string `json:"agentStorageProfile,omitempty"`
// AgentVMSize specifies the VM size in the agent pool. [optional only when creating]
AgentVMSize string `json:"agentVmSize,omitempty"`
// VirtualNetworkResourceGroup specifies the Azure Virtual Network located int which resource group. Composite of agent virtual network subnet ID. [optional only when creating]
VirtualNetworkResourceGroup string `json:"virtualNetworkResourceGroup,omitempty"`
// VirtualNetwork specifies an existing Azure Virtual Network. Composite of agent virtual network subnet ID. [optional only when creating]
VirtualNetwork string `json:"virtualNetwork,omitempty"`
// Subnet specifies an existing Azure Virtual Subnet. Composite of agent virtual network subnet ID. [optional only when creating]
Subnet string `json:"subnet,omitempty"`
// LinuxAdminUsername specifies the username to use for Linux VMs. [optional only when creating]
LinuxAdminUsername string `json:"adminUsername,omitempty"`
// LinuxSSHPublicKeyContents specifies the content of the SSH configuration for Linux VMs, Opposite to `LinuxSSHPublicKeyPath`. [requirement only when creating]
LinuxSSHPublicKeyContents string `json:"sshPublicKeyContents,omitempty"`
// LinuxSSHPublicKeyPath specifies the local path of the SSH configuration for Linux VMs, Opposite to `LinuxSSHPublicKeyContents`. [requirement only when creating]
LinuxSSHPublicKeyPath string `json:"sshPublicKey,omitempty"`
// NetworkDNSServiceIP specifies an IP address assigned to the Kubernetes DNS service, it must be within the Kubernetes Service address range specified in `NetworkServiceCIDR`. [optional only when creating]
NetworkDNSServiceIP string `json:"dnsServiceIp,omitempty"`
// NetworkDockerBridgeCIDR specifies a CIDR notation IP range assigned to the Docker bridge network, it must not overlap with any Azure Subnet IP ranges or the Kubernetes Service address range. [optional only when creating]
NetworkDockerBridgeCIDR string `json:"dockerBridgeCidr,omitempty"`
// NetworkPlugin specifies the plugin used for Kubernetes network. [optional only when creating]
NetworkPlugin string `json:"networkPlugin,omitempty"`
// NetworkPolicy specifies the policy used for Kubernetes network. [optional only when creating]
NetworkPolicy string `json:"networkPolicy,omitempty"`
// NetworkPodCIDR specifies a CIDR notation IP range from which to assign pod IPs when `NetworkPlugin` is using "kubenet". [optional only when creating]
NetworkPodCIDR string `json:"podCidr,omitempty"`
// NetworkServiceCIDR specifies a CIDR notation IP range from which to assign service cluster IPs, it must not overlap with any Azure Subnet IP ranges. [optional only when creating]
NetworkServiceCIDR string `json:"serviceCidr,omitempty"`
// Location specifies the cluster location. [requirement]
Location string `json:"location,omitempty"`
// DNSPrefix specifies the DNS prefix of the cluster. [optional only when creating]
DNSPrefix string `json:"masterDnsPrefix,omitempty"`
// KubernetesVersion specifies the Kubernetes version of the cluster. [optional]
KubernetesVersion string `json:"kubernetesVersion,omitempty"`
// Tags tag the cluster. [optional]
Tags map[string]string `json:"tags,omitempty"`
/**
Azure Kubernetes Service API Metadata & Authentication
*/
// BaseURL specifies the Azure Resource management endpoint, it defaults "https://management.azure.com/". [requirement]
BaseURL string `json:"baseUrl"`
// AuthBaseURL specifies the Azure OAuth 2.0 authentication endpoint, it defaults "https://login.microsoftonline.com/". [requirement]
AuthBaseURL string `json:"authBaseUrl"`
// ClientID is a user ID for the Service Principal. [requirement]
ClientID string `json:"clientId"`
// ClientSecret is a plain-text password associated with the Service Principal. [requirement]
ClientSecret string `json:"clientSecret"`
// TenantID is a tenant ID for Azure OAuth 2.0 authentication. [optional only when creating]
TenantID string `json:"tenantId,omitempty"`
/**
Rancher Parameters
*/
// DisplayName specifies cluster name displayed in Rancher UI. [optional only when creating]
DisplayName string `json:"displayName,omitempty"`
ClusterInfo types.ClusterInfo `json:"-"`
}
func NewDriver() types.Driver {
driver := &Driver{
driverCapabilities: types.Capabilities{
Capabilities: make(map[int64]bool),
},
}
driver.driverCapabilities.AddCapability(types.GetVersionCapability)
driver.driverCapabilities.AddCapability(types.SetVersionCapability)
driver.driverCapabilities.AddCapability(types.GetClusterSizeCapability)
driver.driverCapabilities.AddCapability(types.SetClusterSizeCapability)
return driver
}
// GetDriverCreateOptions implements driver interface
func (d *Driver) GetDriverCreateOptions(ctx context.Context) (*types.DriverFlags, error) {
driverFlag := types.DriverFlags{
Options: make(map[string]*types.Flag),
}
driverFlag.Options["subscription-id"] = &types.Flag{
Type: types.StringType,
Usage: "Subscription credentials which uniquely identify Microsoft Azure subscription.",
}
driverFlag.Options["resource-group"] = &types.Flag{
Type: types.StringType,
Usage: "The name of the 'Cluster' resource group.",
}
driverFlag.Options["name"] = &types.Flag{
Type: types.StringType,
Usage: "The name of the 'Cluster' resource, and the internal name of the cluster in Rancher.",
}
driverFlag.Options["aad-client-app-id"] = &types.Flag{
Type: types.StringType,
Usage: `The ID of an Azure Active Directory client application of type "Native". This application is for user login via kubectl.`,
}
driverFlag.Options["aad-server-app-id"] = &types.Flag{
Type: types.StringType,
Usage: `The ID of an Azure Active Directory server application of type "Web app/API". This application represents the managed cluster's apiserver (Server application).`,
}
driverFlag.Options["aad-server-app-secret"] = &types.Flag{
Type: types.StringType,
Password: true,
Usage: `The secret of an Azure Active Directory server application.`,
}
driverFlag.Options["aad-tenant-id"] = &types.Flag{
Type: types.StringType,
Usage: `The ID of an Azure Active Directory tenant.`,
}
driverFlag.Options["enable-http-application-routing"] = &types.Flag{
Type: types.BoolType,
Usage: `Enable the Kubernetes ingress with automatic public DNS name creation.`,
Default: &types.Default{
DefaultBool: false,
},
}
driverFlag.Options["enable-monitoring"] = &types.Flag{
Type: types.BoolType,
Usage: `Turn on Azure Log Analytics monitoring. Uses the Log Analytics "Default" workspace if it exists, else creates one. if using an existing workspace, specifies "log analytics workspace resource id".`,
Default: &types.Default{
DefaultBool: true,
},
}
driverFlag.Options["log-analytics-workspace-resource-group"] = &types.Flag{
Type: types.StringType,
Usage: `The resource group of an existing Azure Log Analytics Workspace to use for storing monitoring data. If not specified, uses the 'Cluster' resource group.`,
}
driverFlag.Options["log-analytics-workspace"] = &types.Flag{
Type: types.StringType,
Usage: `The name of an existing Azure Log Analytics Workspace to use for storing monitoring data. If not specified, uses '{resource group}-{subscription id}-{location code}'.`,
}
driverFlag.Options["agent-dns-prefix"] = &types.Flag{
Type: types.StringType,
Usage: "DNS prefix to be used to create the FQDN for the agent pool.",
}
driverFlag.Options["count"] = &types.Flag{
Type: types.IntType,
Usage: "Number of machines (VMs) in the agent pool. Allowed values must be in the range of 1 to 100 (inclusive).",
Default: &types.Default{
DefaultInt: 1,
},
}
driverFlag.Options["max-pods"] = &types.Flag{
Type: types.IntType,
Usage: "Maximum number of pods that can run on a node.",
Default: &types.Default{
DefaultInt: 110,
},
}
driverFlag.Options["agent-pool-name"] = &types.Flag{
Type: types.StringType,
Usage: "Name for the agent pool, upto 12 alphanumeric characters.",
Value: "agentpool0",
}
driverFlag.Options["agent-osdisk-size"] = &types.Flag{
Type: types.IntType,
Usage: `GB size to be used to specify the disk for every machine in the agent pool. If you specify 0, it will apply the default according to the "agent vm size" specified.`,
}
driverFlag.Options["agent-storage-profile"] = &types.Flag{
Type: types.StringType,
Usage: fmt.Sprintf("Storage profile specifies what kind of storage used on machine in the agent pool. Chooses from %v.", containerservice.PossibleStorageProfileTypesValues()),
Value: string(containerservice.ManagedDisks),
}
driverFlag.Options["agent-vm-size"] = &types.Flag{
Type: types.StringType,
Usage: "Size of machine in the agent pool.",
Value: string(containerservice.StandardD1V2),
}
driverFlag.Options["virtual-network-resource-group"] = &types.Flag{
Type: types.StringType,
Usage: "The resource group of an existing Azure Virtual Network. Composite of agent virtual network subnet ID.",
}
driverFlag.Options["virtual-network"] = &types.Flag{
Type: types.StringType,
Usage: "The name of an existing Azure Virtual Network. Composite of agent virtual network subnet ID.",
}
driverFlag.Options["subnet"] = &types.Flag{
Type: types.StringType,
Usage: "The name of an existing Azure Virtual Subnet. Composite of agent virtual network subnet ID.",
}
driverFlag.Options["admin-username"] = &types.Flag{
Type: types.StringType,
Usage: "The administrator username to use for Linux hosts.",
Value: "azureuser",
}
driverFlag.Options["ssh-public-key-contents"] = &types.Flag{
Type: types.StringType,
Usage: `Contents of the SSH public key used to authenticate with Linux hosts. Opposite to "ssh public key".`,
}
driverFlag.Options["ssh-public-key"] = &types.Flag{
Type: types.StringType,
Usage: `Path to the SSH public key used to authenticate with Linux hosts. Opposite to "ssh public key contents".`,
}
driverFlag.Options["dns-service-ip"] = &types.Flag{
Type: types.StringType,
Usage: `An IP address assigned to the Kubernetes DNS service. It must be within the Kubernetes Service address range specified in "service cidr".`,
Value: "10.0.0.10",
}
driverFlag.Options["docker-bridge-cidr"] = &types.Flag{
Type: types.StringType,
Usage: `A CIDR notation IP range assigned to the Docker bridge network. It must not overlap with any Subnet IP ranges or the Kubernetes Service address range specified in "service cidr".`,
Value: "172.17.0.1/16",
}
driverFlag.Options["network-plugin"] = &types.Flag{
Type: types.StringType,
Usage: fmt.Sprintf(`Network plugin used for building Kubernetes network. Chooses from %v.`, containerservice.PossibleNetworkPluginValues()),
Value: string(containerservice.Azure),
}
driverFlag.Options["network-policy"] = &types.Flag{
Type: types.StringType,
Usage: fmt.Sprintf(`Network policy used for building Kubernetes network. Chooses from %v.`, containerservice.PossibleNetworkPolicyValues()),
}
driverFlag.Options["pod-cidr"] = &types.Flag{
Type: types.StringType,
Usage: fmt.Sprintf(`A CIDR notation IP range from which to assign Kubernetes Pod IPs when "network plugin" is specified in %q.`, containerservice.Kubenet),
Value: "172.244.0.0/16",
}
driverFlag.Options["service-cidr"] = &types.Flag{
Type: types.StringType,
Usage: "A CIDR notation IP range from which to assign Kubernetes Service cluster IPs. It must not overlap with any Subnet IP ranges.",
Value: "10.0.0.0/16",
}
driverFlag.Options["location"] = &types.Flag{
Type: types.StringType,
Usage: "Azure Kubernetes cluster location.",
Value: "eastus",
}
driverFlag.Options["master-dns-prefix"] = &types.Flag{
Type: types.StringType,
Usage: "DNS prefix to use the Kubernetes cluster control pane.",
}
driverFlag.Options["kubernetes-version"] = &types.Flag{
Type: types.StringType,
Usage: "Specify the version of Kubernetes.",
Value: "1.11.5",
}
driverFlag.Options["tags"] = &types.Flag{
Type: types.StringSliceType,
Usage: "Tags for Kubernetes cluster. For example, foo=bar.",
}
driverFlag.Options["base-url"] = &types.Flag{
Type: types.StringType,
Usage: "Different resource management API url to use.",
Value: azure.PublicCloud.ResourceManagerEndpoint,
}
driverFlag.Options["auth-base-url"] = &types.Flag{
Type: types.StringType,
Usage: "Different authentication API url to use.",
Value: azure.PublicCloud.ActiveDirectoryEndpoint,
}
driverFlag.Options["client-id"] = &types.Flag{
Type: types.StringType,
Usage: "Azure client ID to use.",
}
driverFlag.Options["client-secret"] = &types.Flag{
Type: types.StringType,
Password: true,
Usage: `Azure client secret associated with the "client id".`,
}
driverFlag.Options["tenant-id"] = &types.Flag{
Type: types.StringType,
Usage: "Azure tenant ID to use.",
}
driverFlag.Options["display-name"] = &types.Flag{
Type: types.StringType,
Usage: "The displayed name of the cluster in the Rancher UI.",
}
return &driverFlag, nil
}
// GetDriverUpdateOptions implements driver interface
func (d *Driver) GetDriverUpdateOptions(ctx context.Context) (*types.DriverFlags, error) {
driverFlag := types.DriverFlags{
Options: make(map[string]*types.Flag),
}
driverFlag.Options["enable-http-application-routing"] = &types.Flag{
Type: types.BoolType,
Usage: `Enable the Kubernetes ingress with automatic public DNS name creation.`,
Default: &types.Default{
DefaultBool: false,
},
}
driverFlag.Options["enable-monitoring"] = &types.Flag{
Type: types.BoolType,
Usage: `Turn on Azure Log Analytics monitoring. Uses the Log Analytics "Default" workspace if it exists, else creates one. if using an existing workspace, specifies "log analytics workspace resource id".`,
Default: &types.Default{
DefaultBool: true,
},
}
driverFlag.Options["log-analytics-workspace-resource-group"] = &types.Flag{
Type: types.StringType,
Usage: `The resource group of an existing Azure Log Analytics Workspace to use for storing monitoring data. If not specified, uses the 'Cluster' resource group.`,
}
driverFlag.Options["log-analytics-workspace"] = &types.Flag{
Type: types.StringType,
Usage: `The name of an existing Azure Log Analytics Workspace to use for storing monitoring data. If not specified, uses '{resource group}-{subscription id}-{location code}'.`,
}
driverFlag.Options["count"] = &types.Flag{
Type: types.IntType,
Usage: "Number of machines (VMs) in the agent pool. Allowed values must be in the range of 1 to 100 (inclusive).",
Default: &types.Default{
DefaultInt: 1,
},
}
driverFlag.Options["kubernetes-version"] = &types.Flag{
Type: types.StringType,
Usage: "Specify the version of Kubernetes.",
Value: "1.11.5",
}
driverFlag.Options["tags"] = &types.Flag{
Type: types.StringSliceType,
Usage: "Tags for Kubernetes cluster. For example, foo=bar.",
}
return &driverFlag, nil
}
// SetDriverOptions implements driver interface
func getStateFromOptions(driverOptions *types.DriverOptions) (state, error) {
state := state{}
state.SubscriptionID = options.GetValueFromDriverOptions(driverOptions, types.StringType, "subscription-id", "subscriptionId").(string)
state.ResourceGroup = options.GetValueFromDriverOptions(driverOptions, types.StringType, "resource-group", "resourceGroup").(string)
state.Name = options.GetValueFromDriverOptions(driverOptions, types.StringType, "name").(string)
state.AzureADClientAppID = options.GetValueFromDriverOptions(driverOptions, types.StringType, "aad-client-app-id", "aadClientAppId").(string)
state.AzureADServerAppID = options.GetValueFromDriverOptions(driverOptions, types.StringType, "aad-server-app-id", "aadServerAppId").(string)
state.AzureADServerAppSecret = options.GetValueFromDriverOptions(driverOptions, types.StringType, "aad-server-app-secret", "aadServerAppSecret").(string)
state.AzureADTenantID = options.GetValueFromDriverOptions(driverOptions, types.StringType, "aad-tenant-id", "aadTenantId").(string)
state.AddonEnableHTTPApplicationRouting = options.GetValueFromDriverOptions(driverOptions, types.BoolType, "enable-http-application-routing", "enableHttpApplicationRouting").(bool)
state.AddonEnableMonitoring = options.GetValueFromDriverOptions(driverOptions, types.BoolType, "enable-monitoring", "enableMonitoring").(bool)
state.LogAnalyticsWorkspaceResourceGroup = options.GetValueFromDriverOptions(driverOptions, types.StringType, "log-analytics-workspace-resource-group", "logAnalyticsWorkspaceResourceGroup").(string)
state.LogAnalyticsWorkspace = options.GetValueFromDriverOptions(driverOptions, types.StringType, "log-analytics-workspace", "logAnalyticsWorkspace").(string)
state.AgentDNSPrefix = options.GetValueFromDriverOptions(driverOptions, types.StringType, "agent-dns-prefix", "agentDnsPrefix").(string)
state.AgentCount = options.GetValueFromDriverOptions(driverOptions, types.IntType, "count").(int64)
state.AgentMaxPods = options.GetValueFromDriverOptions(driverOptions, types.IntType, "max-pods", "maxPods").(int64)
state.AgentName = options.GetValueFromDriverOptions(driverOptions, types.StringType, "agent-pool-name", "agentPoolName").(string)
state.AgentOsdiskSizeGB = options.GetValueFromDriverOptions(driverOptions, types.IntType, "agent-osdisk-size", "agentOsdiskSize", "os-disk-size", "osDiskSizeGb").(int64)
state.AgentStorageProfile = options.GetValueFromDriverOptions(driverOptions, types.StringType, "agent-storage-profile", "agentStorageProfile").(string)
state.AgentVMSize = options.GetValueFromDriverOptions(driverOptions, types.StringType, "agent-vm-size", "agentVmSize").(string)
state.VirtualNetworkResourceGroup = options.GetValueFromDriverOptions(driverOptions, types.StringType, "virtual-network-resource-group", "virtualNetworkResourceGroup").(string)
state.VirtualNetwork = options.GetValueFromDriverOptions(driverOptions, types.StringType, "virtual-network", "virtualNetwork").(string)
state.Subnet = options.GetValueFromDriverOptions(driverOptions, types.StringType, "subnet").(string)
state.LinuxAdminUsername = options.GetValueFromDriverOptions(driverOptions, types.StringType, "admin-username", "adminUsername").(string)
state.LinuxSSHPublicKeyContents = options.GetValueFromDriverOptions(driverOptions, types.StringType, "ssh-public-key-contents", "sshPublicKeyContents", "public-key-contents", "publicKeyContents").(string)
state.LinuxSSHPublicKeyPath = options.GetValueFromDriverOptions(driverOptions, types.StringType, "ssh-public-key", "sshPublicKey", "public-key", "publicKey").(string)
state.NetworkDNSServiceIP = options.GetValueFromDriverOptions(driverOptions, types.StringType, "dns-service-ip", "dnsServiceIp").(string)
state.NetworkDockerBridgeCIDR = options.GetValueFromDriverOptions(driverOptions, types.StringType, "docker-bridge-cidr", "dockerBridgeCidr").(string)
state.NetworkPlugin = options.GetValueFromDriverOptions(driverOptions, types.StringType, "network-plugin", "networkPlugin").(string)
state.NetworkPolicy = options.GetValueFromDriverOptions(driverOptions, types.StringType, "network-policy", "networkPolicy").(string)
state.NetworkPodCIDR = options.GetValueFromDriverOptions(driverOptions, types.StringType, "pod-cidr", "podCidr").(string)
state.NetworkServiceCIDR = options.GetValueFromDriverOptions(driverOptions, types.StringType, "service-cidr", "serviceCidr").(string)
state.Location = options.GetValueFromDriverOptions(driverOptions, types.StringType, "location").(string)
state.DNSPrefix = options.GetValueFromDriverOptions(driverOptions, types.StringType, "master-dns-prefix", "masterDnsPrefix").(string)
state.KubernetesVersion = options.GetValueFromDriverOptions(driverOptions, types.StringType, "kubernetes-version", "kubernetesVersion").(string)
state.Tags = make(map[string]string)
tagValues := options.GetValueFromDriverOptions(driverOptions, types.StringSliceType, "tags").(*types.StringSlice)
for _, part := range tagValues.Value {
kv := strings.Split(part, "=")
if len(kv) == 2 {
state.Tags[kv[0]] = kv[1]
}
}
state.BaseURL = options.GetValueFromDriverOptions(driverOptions, types.StringType, "base-url", "baseUrl").(string)
state.AuthBaseURL = options.GetValueFromDriverOptions(driverOptions, types.StringType, "auth-base-url", "authBaseUrl").(string)
state.ClientID = options.GetValueFromDriverOptions(driverOptions, types.StringType, "client-id", "clientId").(string)
state.ClientSecret = options.GetValueFromDriverOptions(driverOptions, types.StringType, "client-secret", "clientSecret").(string)
state.TenantID = options.GetValueFromDriverOptions(driverOptions, types.StringType, "tenant-id", "tenantId").(string)
state.DisplayName = options.GetValueFromDriverOptions(driverOptions, types.StringType, "display-name", "displayName").(string)
return state, state.validate()
}
func (state state) validate() error {
if state.SubscriptionID == "" {
return fmt.Errorf(`"subscription id" is required`)
}
if state.ResourceGroup == "" {
return fmt.Errorf(`"resource group" is required`)
}
if state.Name == "" {
return fmt.Errorf(`"name" is required`)
}
if state.ClientID == "" {
return fmt.Errorf(`"client id" is required`)
}
if state.ClientSecret == "" {
return fmt.Errorf(`"client secret" is required`)
}
if state.Location == "" {
return fmt.Errorf(`"location" is required`)
}
if state.LinuxSSHPublicKeyContents == "" && state.LinuxSSHPublicKeyPath == "" {
return fmt.Errorf(`"ssh public key contents or path" is required`)
}
return nil
}
func safeSlice(toSlice string, index int) string {
size := len(toSlice)
if index >= size {
index = size - 1
}
return toSlice[:index]
}
func (state state) getDefaultDNSPrefix() string {
namePart := safeSlice(state.Name, 10)
groupPart := safeSlice(state.ResourceGroup, 16)
subscriptionPart := safeSlice(state.SubscriptionID, 6)
return fmt.Sprintf("%v-%v-%v", namePart, groupPart, subscriptionPart)
}
func newClientAuthorizer(state state) (autorest.Authorizer, error) {
authBaseURL := state.AuthBaseURL
if authBaseURL == "" {
authBaseURL = azure.PublicCloud.ActiveDirectoryEndpoint
}
oauthConfig, err := adal.NewOAuthConfig(authBaseURL, state.TenantID)
if err != nil {
return nil, err
}
baseURL := state.BaseURL
if baseURL == "" {
baseURL = azure.PublicCloud.ResourceManagerEndpoint
}
spToken, err := adal.NewServicePrincipalToken(*oauthConfig, state.ClientID, state.ClientSecret, baseURL)
if err != nil {
return nil, err
}
authorizer := autorest.NewBearerAuthorizer(spToken)
return authorizer, nil
}
func newClustersClient(authorizer autorest.Authorizer, state state) (*containerservice.ManagedClustersClient, error) {
if authorizer == nil {
newAuthorizer, err := newClientAuthorizer(state)
if err != nil {
return nil, err
}
authorizer = newAuthorizer
}
baseURL := state.BaseURL
if baseURL == "" {
baseURL = azure.PublicCloud.ResourceManagerEndpoint
}
client := containerservice.NewManagedClustersClientWithBaseURI(baseURL, state.SubscriptionID)
client.Authorizer = authorizer
return &client, nil
}
func newResourceGroupsClient(authorizer autorest.Authorizer, state state) (*resources.GroupsClient, error) {
if authorizer == nil {
newAuthorizer, err := newClientAuthorizer(state)
if err != nil {
return nil, err
}
authorizer = newAuthorizer
}
baseURL := state.BaseURL
if baseURL == "" {
baseURL = azure.PublicCloud.ResourceManagerEndpoint
}
client := resources.NewGroupsClientWithBaseURI(baseURL, state.SubscriptionID)
client.Authorizer = authorizer
return &client, nil
}
func newOperationInsightsWorkspaceClient(authorizer autorest.Authorizer, state state) (*operationalinsights.WorkspacesClient, error) {
if authorizer == nil {
newAuthorizer, err := newClientAuthorizer(state)
if err != nil {
return nil, err
}
authorizer = newAuthorizer
}
baseURL := state.BaseURL
if baseURL == "" {
baseURL = azure.PublicCloud.ResourceManagerEndpoint
}
client := operationalinsights.NewWorkspacesClientWithBaseURI(baseURL, state.SubscriptionID)
client.Authorizer = authorizer
return &client, nil
}
func newRouteTablesClient(authorizer autorest.Authorizer, state state) (*network.RouteTablesClient, error) {
if authorizer == nil {
newAuthorizer, err := newClientAuthorizer(state)
if err != nil {
return nil, err
}
authorizer = newAuthorizer
}
baseURL := state.BaseURL
if baseURL == "" {
baseURL = azure.PublicCloud.ResourceManagerEndpoint
}
client := network.NewRouteTablesClientWithBaseURI(baseURL, state.SubscriptionID)
client.Authorizer = authorizer
return &client, nil
}
func newSecurityGroupsClient(authorizer autorest.Authorizer, state state) (*network.SecurityGroupsClient, error) {
if authorizer == nil {
newAuthorizer, err := newClientAuthorizer(state)
if err != nil {
return nil, err
}
authorizer = newAuthorizer
}
baseURL := state.BaseURL
if baseURL == "" {
baseURL = azure.PublicCloud.ResourceManagerEndpoint
}
client := network.NewSecurityGroupsClientWithBaseURI(baseURL, state.SubscriptionID)
client.Authorizer = authorizer
return &client, nil
}
func newSubnetsClient(authorizer autorest.Authorizer, state state) (*network.SubnetsClient, error) {
if authorizer == nil {
newAuthorizer, err := newClientAuthorizer(state)
if err != nil {
return nil, err
}
authorizer = newAuthorizer
}
baseURL := state.BaseURL
if baseURL == "" {
baseURL = azure.PublicCloud.ResourceManagerEndpoint
}
client := network.NewSubnetsClientWithBaseURI(baseURL, state.SubscriptionID)
client.Authorizer = authorizer
return &client, nil
}
const failedStatus = "Failed"
const succeededStatus = "Succeeded"
const creatingStatus = "Creating"
const updatingStatus = "Updating"
const scalingStatus = "Scaling"
const pollInterval = 30
func (d *Driver) Create(ctx context.Context, options *types.DriverOptions, _ *types.ClusterInfo) (*types.ClusterInfo, error) {
return d.createOrUpdate(ctx, options, true)
}
func (d *Driver) Update(ctx context.Context, info *types.ClusterInfo, options *types.DriverOptions) (*types.ClusterInfo, error) {
return d.createOrUpdate(ctx, options, false)
}
func (d *Driver) createOrUpdate(ctx context.Context, options *types.DriverOptions, creating bool) (*types.ClusterInfo, error) {
driverState, err := getStateFromOptions(options)
if err != nil {
return nil, err
}
info := &types.ClusterInfo{}
err = storeState(info, driverState)
if err != nil {
return info, err
}
azureAuthorizer, err := newClientAuthorizer(driverState)
if err != nil {
return info, err
}
clustersClient, err := newClustersClient(azureAuthorizer, driverState)
if err != nil {
return info, err
}
resourceGroupsClient, err := newResourceGroupsClient(azureAuthorizer, driverState)
if err != nil {
return info, err
}
operationInsightsWorkspaceClient, err := newOperationInsightsWorkspaceClient(azureAuthorizer, driverState)
if err != nil {
return info, err
}
masterDNSPrefix := driverState.DNSPrefix
if masterDNSPrefix == "" {
masterDNSPrefix = driverState.getDefaultDNSPrefix() + "-master"
}
tags := make(map[string]*string)
for key, val := range driverState.Tags {
if val != "" {
tags[key] = to.StringPtr(val)
}
}
displayName := driverState.DisplayName
if displayName == "" {
displayName = driverState.Name
}
tags["displayName"] = to.StringPtr(displayName)
if creating {
if _, err := subnetAlreadyAttached(ctx, driverState, ""); err != nil {
return info, err
}
}
exists, err := d.resourceGroupExists(ctx, resourceGroupsClient, driverState.ResourceGroup)
if err != nil {
return info, err
}
if !exists {
logrus.Infof("resource group %v does not exist, creating", driverState.ResourceGroup)
err = d.createResourceGroup(ctx, resourceGroupsClient, driverState)
if err != nil {
return info, err
}
}
var aadProfile *containerservice.ManagedClusterAADProfile
if driverState.hasAzureActiveDirectoryProfile() {
aadProfile = &containerservice.ManagedClusterAADProfile{
ClientAppID: to.StringPtr(driverState.AzureADClientAppID),
ServerAppID: to.StringPtr(driverState.AzureADServerAppID),
ServerAppSecret: to.StringPtr(driverState.AzureADServerAppSecret),
}
if driverState.AzureADTenantID != "" {
aadProfile.TenantID = to.StringPtr(driverState.AzureADTenantID)
}
}
addonProfiles := map[string]*containerservice.ManagedClusterAddonProfile{
"omsagent": {
Enabled: to.BoolPtr(driverState.AddonEnableMonitoring),
},
"httpApplicationRouting": {
Enabled: to.BoolPtr(driverState.AddonEnableHTTPApplicationRouting),
},
}
if driverState.AddonEnableMonitoring {
logAnalyticsWorkspaceResourceID, err := d.ensureLogAnalyticsWorkspaceForMonitoring(ctx, operationInsightsWorkspaceClient, driverState)
if err != nil {
return info, err
}
if !strings.HasPrefix(logAnalyticsWorkspaceResourceID, "/") {
logAnalyticsWorkspaceResourceID = "/" + logAnalyticsWorkspaceResourceID
}
logAnalyticsWorkspaceResourceID = strings.TrimSuffix(logAnalyticsWorkspaceResourceID, "/")
addonProfiles["omsagent"].Config = map[string]*string{
"logAnalyticsWorkspaceResourceID": to.StringPtr(logAnalyticsWorkspaceResourceID),
}
}
var vmNetSubnetID *string
var networkProfile *containerservice.NetworkProfile
if driverState.hasCustomVirtualNetwork() {
subnet, err := getSubnet(ctx, driverState)
if err != nil {
return info, err
}
vmNetSubnetID = subnet.ID
networkProfile = &containerservice.NetworkProfile{
DNSServiceIP: to.StringPtr(driverState.NetworkDNSServiceIP),
DockerBridgeCidr: to.StringPtr(driverState.NetworkDockerBridgeCIDR),
ServiceCidr: to.StringPtr(driverState.NetworkServiceCIDR),
}
if driverState.NetworkPlugin == "" {
networkProfile.NetworkPlugin = containerservice.Azure
} else {
networkProfile.NetworkPlugin = containerservice.NetworkPlugin(driverState.NetworkPlugin)
}
// if network plugin is 'kubenet', set PodCIDR
if networkProfile.NetworkPlugin == containerservice.Kubenet {
networkProfile.PodCidr = to.StringPtr(driverState.NetworkPodCIDR)
}
if driverState.NetworkPolicy != "" {
networkProfile.NetworkPolicy = containerservice.NetworkPolicy(driverState.NetworkPolicy)
}
}
var agentPoolProfiles *[]containerservice.ManagedClusterAgentPoolProfile
if driverState.hasAgentPoolProfile() {
var countPointer *int32
if driverState.AgentCount > 0 {
countPointer = to.Int32Ptr(int32(driverState.AgentCount))
} else {
countPointer = to.Int32Ptr(1)
}
var maxPodsPointer *int32
if driverState.AgentMaxPods > 0 {
maxPodsPointer = to.Int32Ptr(int32(driverState.AgentMaxPods))
} else {
maxPodsPointer = to.Int32Ptr(110)
}
var osDiskSizeGBPointer *int32
if driverState.AgentOsdiskSizeGB > 0 {
osDiskSizeGBPointer = to.Int32Ptr(int32(driverState.AgentOsdiskSizeGB))
}
agentDNSPrefix := driverState.AgentDNSPrefix
if agentDNSPrefix == "" {
agentDNSPrefix = driverState.getDefaultDNSPrefix() + "-agent"
}
agentStorageProfile := containerservice.ManagedDisks
if driverState.AgentStorageProfile != "" {
agentStorageProfile = containerservice.StorageProfileTypes(driverState.AgentStorageProfile)
}
agentVMSize := containerservice.StandardD1V2
if driverState.AgentVMSize != "" {
agentVMSize = containerservice.VMSizeTypes(driverState.AgentVMSize)
}
agentPoolProfiles = &[]containerservice.ManagedClusterAgentPoolProfile{
{
DNSPrefix: to.StringPtr(agentDNSPrefix),
Count: countPointer,
MaxPods: maxPodsPointer,
Name: to.StringPtr(safeSlice(driverState.AgentName, 12)),
OsDiskSizeGB: osDiskSizeGBPointer,
OsType: containerservice.Linux,
StorageProfile: agentStorageProfile,
VMSize: agentVMSize,
VnetSubnetID: vmNetSubnetID,
},
}
}
var linuxProfile *containerservice.LinuxProfile
if driverState.hasLinuxProfile() {
var publicKey []byte
if driverState.LinuxSSHPublicKeyContents == "" {
publicKey, err = ioutil.ReadFile(driverState.LinuxSSHPublicKeyPath)
if err != nil {
return info, err
}
} else {
publicKey = []byte(driverState.LinuxSSHPublicKeyContents)
}
publicKeyContents := string(publicKey)
linuxProfile = &containerservice.LinuxProfile{
AdminUsername: to.StringPtr(driverState.LinuxAdminUsername),
SSH: &containerservice.SSHConfiguration{
PublicKeys: &[]containerservice.SSHPublicKey{
{
KeyData: to.StringPtr(publicKeyContents),
},
},
},
}
}
managedCluster := containerservice.ManagedCluster{
Location: to.StringPtr(driverState.Location),
Tags: tags,
ManagedClusterProperties: &containerservice.ManagedClusterProperties{
KubernetesVersion: to.StringPtr(driverState.KubernetesVersion),
DNSPrefix: to.StringPtr(masterDNSPrefix),
AadProfile: aadProfile,
AddonProfiles: addonProfiles,
AgentPoolProfiles: agentPoolProfiles,
LinuxProfile: linuxProfile,
NetworkProfile: networkProfile,
ServicePrincipalProfile: &containerservice.ServicePrincipalProfile{
ClientID: to.StringPtr(driverState.ClientID),
Secret: to.StringPtr(driverState.ClientSecret),
},
},
}
if creating {
managedCluster.ManagedClusterProperties.EnableRBAC = to.BoolPtr(true)
}
logClusterConfig(managedCluster)
_, err = clustersClient.CreateOrUpdate(ctx, driverState.ResourceGroup, driverState.Name, managedCluster)
if err != nil {
return info, err
}
logrus.Info("Request submitted, waiting for cluster to finish creating")
failedCount := 0
for {
result, err := clustersClient.Get(ctx, driverState.ResourceGroup, driverState.Name)
if err != nil {
return info, err
}
switch state := *result.ProvisioningState; state {
case failedStatus:
if failedCount > 3 {
logrus.Errorf("cluster recovery failed, retries depleted")
return info, fmt.Errorf("cluster create has completed with status of 'Failed'")
}
failedCount = failedCount + 1
logrus.Infof("cluster marked as failed but waiting for recovery: retries left %v", 3-failedCount)
time.Sleep(pollInterval * time.Second)
case scalingStatus, creatingStatus, updatingStatus:
logrus.Infof("Cluster %v is %v", driverState.Name, state)
case succeededStatus:
logrus.Info("Cluster provisioned successfully")
info := &types.ClusterInfo{}
err := storeState(info, driverState)
return info, err
default:
logrus.Errorf("Azure failed to provision cluster with state: %v", state)
return info, fmt.Errorf("failed to provision Azure cluster")
}
logrus.Infof("Cluster has not yet completed provisioning, waiting another %v seconds", pollInterval)
time.Sleep(pollInterval * time.Second)
}
}
func (state state) hasCustomVirtualNetwork() bool {
return state.VirtualNetwork != "" && state.Subnet != ""
}
func (state state) hasAzureActiveDirectoryProfile() bool {
return state.AzureADClientAppID != "" && state.AzureADServerAppID != "" && state.AzureADServerAppSecret != ""
}
func (state state) hasAgentPoolProfile() bool {
return state.AgentName != ""
}
func (state state) hasLinuxProfile() bool {
return state.LinuxAdminUsername != "" && (state.LinuxSSHPublicKeyContents != "" || state.LinuxSSHPublicKeyPath != "")
}
func (d *Driver) ensureLogAnalyticsWorkspaceForMonitoring(ctx context.Context, client *operationalinsights.WorkspacesClient, state state) (workspaceID string, err error) {
// log analytics workspaces cannot be created in WCUS region due to capacity limits
// so mapped to EUS per discussion with log analytics team
locationToOmsRegionCodeMap := map[string]string{
"eastus": "EUS",
"westeurope": "WEU",