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variables.go
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variables.go
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT license.
package agent
import (
"strconv"
"github.com/Azure/agentbaker/pkg/agent/datamodel"
"github.com/Azure/go-autorest/autorest/to"
)
// getCustomDataVariables returns cloudinit data used by Linux
func getCustomDataVariables(config *datamodel.NodeBootstrappingConfiguration) paramsMap {
cs := config.ContainerService
cloudInitFiles := map[string]interface{}{
"cloudInitData": paramsMap{
"provisionStartScript": getBase64EncodedGzippedCustomScript(kubernetesCSEStartScript, config),
"provisionScript": getBase64EncodedGzippedCustomScript(kubernetesCSEMainScript, config),
"provisionSource": getBase64EncodedGzippedCustomScript(kubernetesCSEHelpersScript, config),
"provisionInstalls": getBase64EncodedGzippedCustomScript(kubernetesCSEInstall, config),
"provisionConfigs": getBase64EncodedGzippedCustomScript(kubernetesCSEConfig, config),
"customSearchDomainsScript": getBase64EncodedGzippedCustomScript(kubernetesCustomSearchDomainsScript, config),
"dhcpv6SystemdService": getBase64EncodedGzippedCustomScript(dhcpv6SystemdService, config),
"dhcpv6ConfigurationScript": getBase64EncodedGzippedCustomScript(dhcpv6ConfigurationScript, config),
"kubeletSystemdService": getBase64EncodedGzippedCustomScript(kubeletSystemdService, config),
"systemdBPFMount": getBase64EncodedGzippedCustomScript(systemdBPFMount, config),
"reconcilePrivateHostsScript": getBase64EncodedGzippedCustomScript(reconcilePrivateHostsScript, config),
"reconcilePrivateHostsService": getBase64EncodedGzippedCustomScript(reconcilePrivateHostsService, config),
"updateNodeLabelsSystemdService": getBase64EncodedGzippedCustomScript(updateNodeLabelsSystemdService, config),
"updateNodeLabelsScript": getBase64EncodedGzippedCustomScript(updateNodeLabelsScript, config),
},
}
cloudInitData := cloudInitFiles["cloudInitData"].(paramsMap)
if cs.IsAKSCustomCloud() {
cloudInitData["initAKSCustomCloud"] = getBase64EncodedGzippedCustomScript(initAKSCustomCloudScript, config)
}
if !cs.Properties.IsVHDDistroForAllNodes() {
cloudInitData["provisionCIS"] = getBase64EncodedGzippedCustomScript(kubernetesCISScript, config)
cloudInitData["kmsSystemdService"] = getBase64EncodedGzippedCustomScript(kmsSystemdService, config)
cloudInitData["aptPreferences"] = getBase64EncodedGzippedCustomScript(aptPreferences, config)
cloudInitData["healthMonitorScript"] = getBase64EncodedGzippedCustomScript(kubernetesHealthMonitorScript, config)
cloudInitData["kubeletMonitorSystemdService"] = getBase64EncodedGzippedCustomScript(kubernetesKubeletMonitorSystemdService, config)
cloudInitData["dockerMonitorSystemdService"] = getBase64EncodedGzippedCustomScript(kubernetesDockerMonitorSystemdService, config)
cloudInitData["dockerMonitorSystemdTimer"] = getBase64EncodedGzippedCustomScript(kubernetesDockerMonitorSystemdTimer, config)
cloudInitData["containerdMonitorSystemdService"] = getBase64EncodedGzippedCustomScript(kubernetesContainerdMonitorSystemdService, config)
cloudInitData["containerdMonitorSystemdTimer"] = getBase64EncodedGzippedCustomScript(kubernetesContainerdMonitorSystemdTimer, config)
cloudInitData["dockerClearMountPropagationFlags"] = getBase64EncodedGzippedCustomScript(dockerClearMountPropagationFlags, config)
cloudInitData["auditdRules"] = getBase64EncodedGzippedCustomScript(auditdRules, config)
cloudInitData["containerdSystemdService"] = getBase64EncodedGzippedCustomScript(containerdSystemdService, config)
}
return cloudInitFiles
}
// getWindowsCustomDataVariables returns custom data for Windows
// TODO(qinhao): combine this function with `getCSECommandVariables` after we support passing variables from cse command to customdata
func getWindowsCustomDataVariables(config *datamodel.NodeBootstrappingConfiguration) paramsMap {
cs := config.ContainerService
// these variables is subet of
customData := map[string]interface{}{
"tenantID": config.TenantID,
"subscriptionId": config.SubscriptionID,
"resourceGroup": config.ResourceGroupName,
"location": cs.Location,
"vmType": cs.Properties.GetVMType(),
"subnetName": cs.Properties.GetSubnetName(),
"nsgName": cs.Properties.GetNSGName(),
"virtualNetworkName": cs.Properties.GetVirtualNetworkName(),
"routeTableName": cs.Properties.GetRouteTableName(),
"primaryAvailabilitySetName": cs.Properties.GetPrimaryAvailabilitySetName(),
"primaryScaleSetName": cs.Properties.GetPrimaryScaleSetName(),
"useManagedIdentityExtension": useManagedIdentity(cs),
"useInstanceMetadata": useInstanceMetadata(cs),
"loadBalancerSku": cs.Properties.OrchestratorProfile.KubernetesConfig.LoadBalancerSku,
"excludeMasterFromStandardLB": true,
"enableTelemetry": false,
"windowsEnableCSIProxy": cs.Properties.WindowsProfile.IsCSIProxyEnabled(),
"windowsCSIProxyURL": cs.Properties.WindowsProfile.CSIProxyURL,
"windowsProvisioningScriptsPackageURL": cs.Properties.WindowsProfile.ProvisioningScriptsPackageURL,
"windowsPauseImageURL": cs.Properties.WindowsProfile.WindowsPauseImageURL,
"alwaysPullWindowsPauseImage": strconv.FormatBool(cs.Properties.WindowsProfile.IsAlwaysPullWindowsPauseImage()),
"windowsCalicoPackageURL": cs.Properties.WindowsProfile.WindowsCalicoPackageURL,
}
return customData
}
func getCSECommandVariables(config *datamodel.NodeBootstrappingConfiguration) paramsMap {
cs := config.ContainerService
profile := config.AgentPoolProfile
return map[string]interface{}{
"outBoundCmd": getOutBoundCmd(cs, config.CloudSpecConfig),
"tenantID": config.TenantID,
"subscriptionId": config.SubscriptionID,
"resourceGroup": config.ResourceGroupName,
"location": cs.Location,
"vmType": cs.Properties.GetVMType(),
"subnetName": cs.Properties.GetSubnetName(),
"nsgName": cs.Properties.GetNSGName(),
"virtualNetworkName": cs.Properties.GetVirtualNetworkName(),
"virtualNetworkResourceGroupName": cs.Properties.GetVNetResourceGroupName(),
"routeTableName": cs.Properties.GetRouteTableName(),
"primaryAvailabilitySetName": cs.Properties.GetPrimaryAvailabilitySetName(),
"primaryScaleSetName": cs.Properties.GetPrimaryScaleSetName(),
"useManagedIdentityExtension": useManagedIdentity(cs),
"useInstanceMetadata": useInstanceMetadata(cs),
"loadBalancerSku": cs.Properties.OrchestratorProfile.KubernetesConfig.LoadBalancerSku,
"excludeMasterFromStandardLB": true,
"maximumLoadBalancerRuleCount": getMaximumLoadBalancerRuleCount(cs),
"userAssignedIdentityID": config.UserAssignedIdentityClientID,
"isVHD": isVHD(profile),
"gpuNode": strconv.FormatBool(config.EnableNvidia),
"sgxNode": strconv.FormatBool(datamodel.IsSgxEnabledSKU(profile.VMSize)),
"auditdEnabled": strconv.FormatBool(to.Bool(profile.AuditDEnabled)),
"configGPUDriverIfNeeded": config.ConfigGPUDriverIfNeeded,
"enableGPUDevicePluginIfNeeded": config.EnableGPUDevicePluginIfNeeded,
}
}
func useManagedIdentity(cs *datamodel.ContainerService) string {
useManagedIdentity := cs.Properties.OrchestratorProfile.KubernetesConfig != nil &&
cs.Properties.OrchestratorProfile.KubernetesConfig.UseManagedIdentity
return strconv.FormatBool(useManagedIdentity)
}
func useInstanceMetadata(cs *datamodel.ContainerService) string {
useInstanceMetadata := cs.Properties.OrchestratorProfile.KubernetesConfig != nil &&
cs.Properties.OrchestratorProfile.KubernetesConfig.UseInstanceMetadata != nil &&
*cs.Properties.OrchestratorProfile.KubernetesConfig.UseInstanceMetadata
return strconv.FormatBool(useInstanceMetadata)
}
func getMaximumLoadBalancerRuleCount(cs *datamodel.ContainerService) int {
if cs.Properties.OrchestratorProfile.KubernetesConfig != nil {
return cs.Properties.OrchestratorProfile.KubernetesConfig.MaximumLoadBalancerRuleCount
}
return 0
}
func isVHD(profile *datamodel.AgentPoolProfile) string {
//NOTE: update as new distro is introduced
return strconv.FormatBool(profile.IsVHDDistro())
}
func getOutBoundCmd(cs *datamodel.ContainerService, cloudSpecConfig *datamodel.AzureEnvironmentSpecConfig) string {
if cs.Properties.FeatureFlags.IsFeatureEnabled("BlockOutboundInternet") {
return ""
}
registry := ""
ncBinary := "nc"
if cloudSpecConfig.CloudName == datamodel.AzureChinaCloud {
registry = `gcr.azk8s.cn 443`
} else if cs.IsAKSCustomCloud() {
registry = cs.Properties.CustomCloudEnv.McrURL + " 443"
} else {
registry = `mcr.microsoft.com 443`
}
if registry == "" {
return ""
}
return `retrycmd_if_failure() { r=$1; w=$2; t=$3; shift && shift && shift; for i in $(seq 1 $r); do timeout $t ${@}; [ $? -eq 0 ] && break || if [ $i -eq $r ]; then return 1; else sleep $w; fi; done }; ERR_OUTBOUND_CONN_FAIL=50; retrycmd_if_failure 150 1 3 ` + ncBinary + ` -vz ` + registry + ` >> /var/log/azure/cluster-provision-cse-output.log 2>&1 || exit $ERR_OUTBOUND_CONN_FAIL;`
}