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defaults.go
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defaults.go
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package acsengine
import (
"bytes"
"crypto/rand"
"encoding/base64"
"fmt"
"net"
"sort"
"strconv"
"strings"
"github.com/Azure/acs-engine/pkg/api"
"github.com/Azure/acs-engine/pkg/api/common"
"github.com/Azure/acs-engine/pkg/helpers"
"github.com/Azure/acs-engine/pkg/openshift/certgen"
"github.com/Masterminds/semver"
)
const (
// AzureCniPluginVer specifies version of Azure CNI plugin, which has been mirrored from
// https://github.com/Azure/azure-container-networking/releases/download/${AZURE_PLUGIN_VER}/azure-vnet-cni-linux-amd64-${AZURE_PLUGIN_VER}.tgz
// to https://acs-mirror.azureedge.net/cni/
AzureCniPluginVer = "v1.0.6"
// CNIPluginVer specifies the version of CNI implementation
// https://github.com/containernetworking/plugins
CNIPluginVer = "v0.7.0"
)
var (
//DefaultKubernetesSpecConfig is the default Docker image source of Kubernetes
DefaultKubernetesSpecConfig = KubernetesSpecConfig{
KubernetesImageBase: "k8s-gcrio.azureedge.net/",
TillerImageBase: "gcrio.azureedge.net/kubernetes-helm/",
ACIConnectorImageBase: "microsoft/",
NVIDIAImageBase: "nvidia/",
EtcdDownloadURLBase: "https://acs-mirror.azureedge.net/github-coreos",
KubeBinariesSASURLBase: "https://acs-mirror.azureedge.net/wink8s/",
WindowsPackageSASURLBase: "https://acs-mirror.azureedge.net/wink8s/",
WindowsTelemetryGUID: "fb801154-36b9-41bc-89c2-f4d4f05472b0",
CNIPluginsDownloadURL: "https://acs-mirror.azureedge.net/cni/cni-plugins-amd64-" + CNIPluginVer + ".tgz",
VnetCNILinuxPluginsDownloadURL: "https://acs-mirror.azureedge.net/cni/azure-vnet-cni-linux-amd64-" + AzureCniPluginVer + ".tgz",
VnetCNIWindowsPluginsDownloadURL: "https://acs-mirror.azureedge.net/cni/azure-vnet-cni-windows-amd64-" + AzureCniPluginVer + ".zip",
}
//DefaultDCOSSpecConfig is the default DC/OS binary download URL.
DefaultDCOSSpecConfig = DCOSSpecConfig{
DCOS188BootstrapDownloadURL: fmt.Sprintf(AzureEdgeDCOSBootstrapDownloadURL, "stable", "5df43052907c021eeb5de145419a3da1898c58a5"),
DCOS190BootstrapDownloadURL: fmt.Sprintf(AzureEdgeDCOSBootstrapDownloadURL, "stable", "58fd0833ce81b6244fc73bf65b5deb43217b0bd7"),
DCOS198BootstrapDownloadURL: fmt.Sprintf(AzureEdgeDCOSBootstrapDownloadURL, "stable/1.9.8", "f4ae0d20665fc68ee25282d6f78681b2773c6e10"),
DCOS110BootstrapDownloadURL: fmt.Sprintf(AzureEdgeDCOSBootstrapDownloadURL, "stable/1.10.0", "4d92536e7381176206e71ee15b5ffe454439920c"),
DCOS111BootstrapDownloadURL: fmt.Sprintf(AzureEdgeDCOSBootstrapDownloadURL, "stable/1.11.0", "a0654657903fb68dff60f6e522a7f241c1bfbf0f"),
DCOSWindowsBootstrapDownloadURL: "http://dcos-win.westus.cloudapp.azure.com/dcos-windows/stable/",
DcosRepositoryURL: "https://dcosio.azureedge.net/dcos/stable/1.11.0",
DcosClusterPackageListID: "248a66388bba1adbcb14a52fd3b7b424ab06fa76",
}
//DefaultDockerSpecConfig is the default Docker engine repo.
DefaultDockerSpecConfig = DockerSpecConfig{
DockerEngineRepo: "https://aptdocker.azureedge.net/repo",
DockerComposeDownloadURL: "https://github.com/docker/compose/releases/download",
}
//DefaultUbuntuImageConfig is the default Linux distribution.
DefaultUbuntuImageConfig = AzureOSImageConfig{
ImageOffer: "UbuntuServer",
ImageSku: "16.04-LTS",
ImagePublisher: "Canonical",
ImageVersion: "16.04.201805220",
}
//DefaultRHELOSImageConfig is the RHEL Linux distribution.
DefaultRHELOSImageConfig = AzureOSImageConfig{
ImageOffer: "RHEL",
ImageSku: "7.3",
ImagePublisher: "RedHat",
ImageVersion: "latest",
}
//DefaultCoreOSImageConfig is the CoreOS Linux distribution.
DefaultCoreOSImageConfig = AzureOSImageConfig{
ImageOffer: "CoreOS",
ImageSku: "Stable",
ImagePublisher: "CoreOS",
ImageVersion: "latest",
}
//DefaultOpenShift39RHELImageConfig is the OpenShift on RHEL distribution.
DefaultOpenShift39RHELImageConfig = AzureOSImageConfig{
ImageOffer: "acsengine-preview",
ImageSku: "rhel74",
ImagePublisher: "redhat",
ImageVersion: "latest",
}
//DefaultOpenShift39CentOSImageConfig is the OpenShift on CentOS distribution.
DefaultOpenShift39CentOSImageConfig = AzureOSImageConfig{
ImageOffer: "origin-acsengine-preview",
ImageSku: "centos7",
ImagePublisher: "redhat",
ImageVersion: "latest",
}
//AzureCloudSpec is the default configurations for global azure.
AzureCloudSpec = AzureEnvironmentSpecConfig{
//DockerSpecConfig specify the docker engine download repo
DockerSpecConfig: DefaultDockerSpecConfig,
//KubernetesSpecConfig is the default kubernetes container image url.
KubernetesSpecConfig: DefaultKubernetesSpecConfig,
DCOSSpecConfig: DefaultDCOSSpecConfig,
EndpointConfig: AzureEndpointConfig{
ResourceManagerVMDNSSuffix: "cloudapp.azure.com",
},
OSImageConfig: map[api.Distro]AzureOSImageConfig{
api.Ubuntu: DefaultUbuntuImageConfig,
api.RHEL: DefaultRHELOSImageConfig,
api.CoreOS: DefaultCoreOSImageConfig,
// Image config supported for OpenShift
api.OpenShift39RHEL: DefaultOpenShift39RHELImageConfig,
api.OpenShiftCentOS: DefaultOpenShift39CentOSImageConfig,
},
}
//AzureGermanCloudSpec is the German cloud config.
AzureGermanCloudSpec = AzureEnvironmentSpecConfig{
DockerSpecConfig: DefaultDockerSpecConfig,
KubernetesSpecConfig: DefaultKubernetesSpecConfig,
DCOSSpecConfig: DefaultDCOSSpecConfig,
EndpointConfig: AzureEndpointConfig{
ResourceManagerVMDNSSuffix: "cloudapp.microsoftazure.de",
},
OSImageConfig: map[api.Distro]AzureOSImageConfig{
api.Ubuntu: {
ImageOffer: "UbuntuServer",
ImageSku: "16.04-LTS",
ImagePublisher: "Canonical",
ImageVersion: "16.04.201801050",
},
api.RHEL: DefaultRHELOSImageConfig,
api.CoreOS: DefaultCoreOSImageConfig,
},
}
//AzureUSGovernmentCloud is the US government config.
AzureUSGovernmentCloud = AzureEnvironmentSpecConfig{
DockerSpecConfig: DefaultDockerSpecConfig,
KubernetesSpecConfig: DefaultKubernetesSpecConfig,
DCOSSpecConfig: DefaultDCOSSpecConfig,
EndpointConfig: AzureEndpointConfig{
ResourceManagerVMDNSSuffix: "cloudapp.usgovcloudapi.net",
},
OSImageConfig: map[api.Distro]AzureOSImageConfig{
api.Ubuntu: {
ImageOffer: "UbuntuServer",
ImageSku: "16.04-LTS",
ImagePublisher: "Canonical",
ImageVersion: "latest",
},
api.RHEL: DefaultRHELOSImageConfig,
api.CoreOS: DefaultCoreOSImageConfig,
},
}
//AzureChinaCloudSpec is the configurations for Azure China (Mooncake)
AzureChinaCloudSpec = AzureEnvironmentSpecConfig{
//DockerSpecConfig specify the docker engine download repo
DockerSpecConfig: DockerSpecConfig{
DockerEngineRepo: "https://mirror.azure.cn/docker-engine/apt/repo/",
DockerComposeDownloadURL: "https://mirror.azure.cn/docker-toolbox/linux/compose",
},
//KubernetesSpecConfig - Due to Chinese firewall issue, the default containers from google is blocked, use the Chinese local mirror instead
KubernetesSpecConfig: KubernetesSpecConfig{
KubernetesImageBase: "crproxy.trafficmanager.net:6000/google_containers/",
TillerImageBase: "crproxy.trafficmanager.net:6000/kubernetes-helm/",
ACIConnectorImageBase: DefaultKubernetesSpecConfig.ACIConnectorImageBase,
EtcdDownloadURLBase: DefaultKubernetesSpecConfig.EtcdDownloadURLBase,
KubeBinariesSASURLBase: DefaultKubernetesSpecConfig.KubeBinariesSASURLBase,
WindowsPackageSASURLBase: DefaultKubernetesSpecConfig.WindowsPackageSASURLBase,
WindowsTelemetryGUID: DefaultKubernetesSpecConfig.WindowsTelemetryGUID,
CNIPluginsDownloadURL: DefaultKubernetesSpecConfig.CNIPluginsDownloadURL,
VnetCNILinuxPluginsDownloadURL: DefaultKubernetesSpecConfig.VnetCNILinuxPluginsDownloadURL,
VnetCNIWindowsPluginsDownloadURL: DefaultKubernetesSpecConfig.VnetCNIWindowsPluginsDownloadURL,
},
DCOSSpecConfig: DCOSSpecConfig{
DCOS188BootstrapDownloadURL: fmt.Sprintf(AzureChinaCloudDCOSBootstrapDownloadURL, "5df43052907c021eeb5de145419a3da1898c58a5"),
DCOSWindowsBootstrapDownloadURL: "https://dcosdevstorage.blob.core.windows.net/dcos-windows",
DCOS190BootstrapDownloadURL: fmt.Sprintf(AzureChinaCloudDCOSBootstrapDownloadURL, "58fd0833ce81b6244fc73bf65b5deb43217b0bd7"),
DCOS198BootstrapDownloadURL: fmt.Sprintf(AzureChinaCloudDCOSBootstrapDownloadURL, "f4ae0d20665fc68ee25282d6f78681b2773c6e10"),
},
EndpointConfig: AzureEndpointConfig{
ResourceManagerVMDNSSuffix: "cloudapp.chinacloudapi.cn",
},
OSImageConfig: map[api.Distro]AzureOSImageConfig{
api.Ubuntu: {
ImageOffer: "UbuntuServer",
ImageSku: "16.04-LTS",
ImagePublisher: "Canonical",
ImageVersion: "latest",
},
api.RHEL: DefaultRHELOSImageConfig,
api.CoreOS: DefaultCoreOSImageConfig,
},
}
// DefaultTillerAddonsConfig is the default tiller Kubernetes addon Config
DefaultTillerAddonsConfig = api.KubernetesAddon{
Name: DefaultTillerAddonName,
Enabled: helpers.PointerToBool(api.DefaultTillerAddonEnabled),
Containers: []api.KubernetesContainerSpec{
{
Name: DefaultTillerAddonName,
CPURequests: "50m",
MemoryRequests: "150Mi",
CPULimits: "50m",
MemoryLimits: "150Mi",
},
},
Config: map[string]string{
"max-history": strconv.Itoa(DefaultTillerMaxHistory),
},
}
// DefaultACIConnectorAddonsConfig is the default ACI Connector Kubernetes addon Config
DefaultACIConnectorAddonsConfig = api.KubernetesAddon{
Name: DefaultACIConnectorAddonName,
Enabled: helpers.PointerToBool(api.DefaultACIConnectorAddonEnabled),
Config: map[string]string{
"region": "westus",
"nodeName": "aci-connector",
"os": "Linux",
"taint": "azure.com/aci",
},
Containers: []api.KubernetesContainerSpec{
{
Name: DefaultACIConnectorAddonName,
CPURequests: "50m",
MemoryRequests: "150Mi",
CPULimits: "50m",
MemoryLimits: "150Mi",
},
},
}
// DefaultClusterAutoscalerAddonsConfig is the default cluster autoscaler addon config
DefaultClusterAutoscalerAddonsConfig = api.KubernetesAddon{
Name: DefaultClusterAutoscalerAddonName,
Enabled: helpers.PointerToBool(api.DefaultClusterAutoscalerAddonEnabled),
Config: map[string]string{
"minNodes": "1",
"maxNodes": "5",
},
Containers: []api.KubernetesContainerSpec{
{
Name: DefaultClusterAutoscalerAddonName,
CPURequests: "100m",
MemoryRequests: "300Mi",
CPULimits: "100m",
MemoryLimits: "300Mi",
},
},
}
// DefaultDashboardAddonsConfig is the default kubernetes-dashboard addon Config
DefaultDashboardAddonsConfig = api.KubernetesAddon{
Name: DefaultDashboardAddonName,
Enabled: helpers.PointerToBool(api.DefaultDashboardAddonEnabled),
Containers: []api.KubernetesContainerSpec{
{
Name: DefaultDashboardAddonName,
CPURequests: "300m",
MemoryRequests: "150Mi",
CPULimits: "300m",
MemoryLimits: "150Mi",
},
},
}
// DefaultReschedulerAddonsConfig is the default rescheduler Kubernetes addon Config
DefaultReschedulerAddonsConfig = api.KubernetesAddon{
Name: DefaultReschedulerAddonName,
Enabled: helpers.PointerToBool(api.DefaultReschedulerAddonEnabled),
Containers: []api.KubernetesContainerSpec{
{
Name: DefaultReschedulerAddonName,
CPURequests: "10m",
MemoryRequests: "100Mi",
CPULimits: "10m",
MemoryLimits: "100Mi",
},
},
}
// DefaultMetricsServerAddonsConfig is the default metrics-server Kubernetes addon Config
DefaultMetricsServerAddonsConfig = api.KubernetesAddon{
Name: DefaultMetricsServerAddonName,
Enabled: helpers.PointerToBool(api.DefaultMetricsServerAddonEnabled),
Containers: []api.KubernetesContainerSpec{
{
Name: DefaultMetricsServerAddonName,
},
},
}
// DefaultNVIDIADevicePluginAddonsConfig is the default NVIDIA Device Plugin Kubernetes addon Config
DefaultNVIDIADevicePluginAddonsConfig = api.KubernetesAddon{
Name: DefaultNVIDIADevicePluginAddonName,
Containers: []api.KubernetesContainerSpec{
{
Name: DefaultNVIDIADevicePluginAddonName,
},
},
}
)
// setPropertiesDefaults for the container Properties, returns true if certs are generated
func setPropertiesDefaults(cs *api.ContainerService, isUpgrade bool) (bool, error) {
properties := cs.Properties
setOrchestratorDefaults(cs)
setMasterNetworkDefaults(properties, isUpgrade)
setHostedMasterNetworkDefaults(properties)
setAgentNetworkDefaults(properties)
setStorageDefaults(properties)
setExtensionDefaults(properties)
certsGenerated, e := setDefaultCerts(properties)
if e != nil {
return false, e
}
return certsGenerated, nil
}
// setOrchestratorDefaults for orchestrators
func setOrchestratorDefaults(cs *api.ContainerService) {
location := cs.Location
a := cs.Properties
cloudSpecConfig := getCloudSpecConfig(location)
if a.OrchestratorProfile == nil {
return
}
o := a.OrchestratorProfile
o.OrchestratorVersion = common.GetValidPatchVersion(
o.OrchestratorType,
o.OrchestratorVersion, a.HasWindows())
switch o.OrchestratorType {
case api.Kubernetes:
k8sVersion := o.OrchestratorVersion
if o.KubernetesConfig == nil {
o.KubernetesConfig = &api.KubernetesConfig{}
}
// For backwards compatibility with original, overloaded "NetworkPolicy" config vector
// we translate deprecated NetworkPolicy usage to the NetworkConfig equivalent
// and set a default network policy enforcement configuration
switch o.KubernetesConfig.NetworkPolicy {
case NetworkPluginAzure:
o.KubernetesConfig.NetworkPlugin = NetworkPluginAzure
o.KubernetesConfig.NetworkPolicy = DefaultNetworkPolicy
case NetworkPolicyNone:
o.KubernetesConfig.NetworkPlugin = NetworkPluginKubenet
o.KubernetesConfig.NetworkPolicy = DefaultNetworkPolicy
case NetworkPolicyCalico:
o.KubernetesConfig.NetworkPlugin = NetworkPluginKubenet
case NetworkPolicyCilium:
o.KubernetesConfig.NetworkPlugin = NetworkPolicyCilium
}
// Add default addons specification, if no user-provided spec exists
if o.KubernetesConfig.Addons == nil {
o.KubernetesConfig.Addons = []api.KubernetesAddon{
DefaultTillerAddonsConfig,
DefaultACIConnectorAddonsConfig,
DefaultClusterAutoscalerAddonsConfig,
DefaultDashboardAddonsConfig,
DefaultReschedulerAddonsConfig,
DefaultMetricsServerAddonsConfig,
DefaultNVIDIADevicePluginAddonsConfig,
}
enforceK8sVersionAddonOverrides(o.KubernetesConfig.Addons, o)
} else {
// For each addon, provide default configuration if user didn't provide its own config
t := getAddonsIndexByName(o.KubernetesConfig.Addons, DefaultTillerAddonName)
if t < 0 {
// Provide default acs-engine config for Tiller
o.KubernetesConfig.Addons = append(o.KubernetesConfig.Addons, DefaultTillerAddonsConfig)
}
a := getAddonsIndexByName(o.KubernetesConfig.Addons, DefaultACIConnectorAddonName)
if a < 0 {
// Provide default acs-engine config for ACI Connector
o.KubernetesConfig.Addons = append(o.KubernetesConfig.Addons, DefaultACIConnectorAddonsConfig)
}
s := getAddonsIndexByName(o.KubernetesConfig.Addons, DefaultClusterAutoscalerAddonName)
if s < 0 {
// Provide default acs-engine config for cluster autoscaler
o.KubernetesConfig.Addons = append(o.KubernetesConfig.Addons, DefaultClusterAutoscalerAddonsConfig)
}
d := getAddonsIndexByName(o.KubernetesConfig.Addons, DefaultDashboardAddonName)
if d < 0 {
// Provide default acs-engine config for Dashboard
o.KubernetesConfig.Addons = append(o.KubernetesConfig.Addons, DefaultDashboardAddonsConfig)
}
r := getAddonsIndexByName(o.KubernetesConfig.Addons, DefaultReschedulerAddonName)
if r < 0 {
// Provide default acs-engine config for Rescheduler
o.KubernetesConfig.Addons = append(o.KubernetesConfig.Addons, DefaultReschedulerAddonsConfig)
}
m := getAddonsIndexByName(o.KubernetesConfig.Addons, DefaultMetricsServerAddonName)
if m < 0 {
// Provide default acs-engine config for Metrics Server
o.KubernetesConfig.Addons = append(o.KubernetesConfig.Addons, DefaultMetricsServerAddonsConfig)
m = getAddonsIndexByName(o.KubernetesConfig.Addons, DefaultMetricsServerAddonName)
o.KubernetesConfig.Addons[m].Enabled = k8sVersionMetricsServerAddonEnabled(o)
}
n := getAddonsIndexByName(o.KubernetesConfig.Addons, DefaultNVIDIADevicePluginAddonName)
if n < 0 {
// Provide default acs-engine config for NVIDIA Device Plugin
o.KubernetesConfig.Addons = append(o.KubernetesConfig.Addons, DefaultNVIDIADevicePluginAddonsConfig)
}
}
if o.KubernetesConfig.KubernetesImageBase == "" {
o.KubernetesConfig.KubernetesImageBase = cloudSpecConfig.KubernetesSpecConfig.KubernetesImageBase
}
if o.KubernetesConfig.EtcdVersion == "" {
o.KubernetesConfig.EtcdVersion = DefaultEtcdVersion
}
if a.HasWindows() {
if o.KubernetesConfig.NetworkPlugin == "" {
o.KubernetesConfig.NetworkPlugin = DefaultNetworkPluginWindows
}
} else {
if o.KubernetesConfig.NetworkPlugin == "" {
o.KubernetesConfig.NetworkPlugin = DefaultNetworkPlugin
}
}
if o.KubernetesConfig.ContainerRuntime == "" {
o.KubernetesConfig.ContainerRuntime = DefaultContainerRuntime
}
if o.KubernetesConfig.ClusterSubnet == "" {
if o.IsAzureCNI() {
// When VNET integration is enabled, all masters, agents and pods share the same large subnet.
o.KubernetesConfig.ClusterSubnet = DefaultKubernetesSubnet
} else {
o.KubernetesConfig.ClusterSubnet = DefaultKubernetesClusterSubnet
}
}
if o.KubernetesConfig.GCHighThreshold == 0 {
o.KubernetesConfig.GCHighThreshold = DefaultKubernetesGCHighThreshold
}
if o.KubernetesConfig.GCLowThreshold == 0 {
o.KubernetesConfig.GCLowThreshold = DefaultKubernetesGCLowThreshold
}
if o.KubernetesConfig.DNSServiceIP == "" {
o.KubernetesConfig.DNSServiceIP = DefaultKubernetesDNSServiceIP
}
if o.KubernetesConfig.DockerBridgeSubnet == "" {
o.KubernetesConfig.DockerBridgeSubnet = DefaultDockerBridgeSubnet
}
if o.KubernetesConfig.ServiceCIDR == "" {
o.KubernetesConfig.ServiceCIDR = DefaultKubernetesServiceCIDR
}
// Enforce sane cloudprovider backoff defaults, if CloudProviderBackoff is true in KubernetesConfig
if o.KubernetesConfig.CloudProviderBackoff {
if o.KubernetesConfig.CloudProviderBackoffDuration == 0 {
o.KubernetesConfig.CloudProviderBackoffDuration = DefaultKubernetesCloudProviderBackoffDuration
}
if o.KubernetesConfig.CloudProviderBackoffExponent == 0 {
o.KubernetesConfig.CloudProviderBackoffExponent = DefaultKubernetesCloudProviderBackoffExponent
}
if o.KubernetesConfig.CloudProviderBackoffJitter == 0 {
o.KubernetesConfig.CloudProviderBackoffJitter = DefaultKubernetesCloudProviderBackoffJitter
}
if o.KubernetesConfig.CloudProviderBackoffRetries == 0 {
o.KubernetesConfig.CloudProviderBackoffRetries = DefaultKubernetesCloudProviderBackoffRetries
}
}
k8sSemVer, _ := semver.NewVersion(k8sVersion)
constraint, _ := semver.NewConstraint(">= 1.6.6")
// Enforce sane cloudprovider rate limit defaults, if CloudProviderRateLimit is true in KubernetesConfig
// For k8s version greater or equal to 1.6.6, we will set the default CloudProviderRate* settings
if o.KubernetesConfig.CloudProviderRateLimit && constraint.Check(k8sSemVer) {
if o.KubernetesConfig.CloudProviderRateLimitQPS == 0 {
o.KubernetesConfig.CloudProviderRateLimitQPS = DefaultKubernetesCloudProviderRateLimitQPS
}
if o.KubernetesConfig.CloudProviderRateLimitBucket == 0 {
o.KubernetesConfig.CloudProviderRateLimitBucket = DefaultKubernetesCloudProviderRateLimitBucket
}
}
// For each addon, produce a synthesized config between user-provided and acs-engine defaults
t := getAddonsIndexByName(a.OrchestratorProfile.KubernetesConfig.Addons, DefaultTillerAddonName)
if a.OrchestratorProfile.KubernetesConfig.Addons[t].IsEnabled(api.DefaultTillerAddonEnabled) {
a.OrchestratorProfile.KubernetesConfig.Addons[t] = assignDefaultAddonVals(a.OrchestratorProfile.KubernetesConfig.Addons[t], DefaultTillerAddonsConfig)
}
c := getAddonsIndexByName(a.OrchestratorProfile.KubernetesConfig.Addons, DefaultACIConnectorAddonName)
if a.OrchestratorProfile.KubernetesConfig.Addons[c].IsEnabled(api.DefaultACIConnectorAddonEnabled) {
a.OrchestratorProfile.KubernetesConfig.Addons[c] = assignDefaultAddonVals(a.OrchestratorProfile.KubernetesConfig.Addons[c], DefaultACIConnectorAddonsConfig)
}
s := getAddonsIndexByName(a.OrchestratorProfile.KubernetesConfig.Addons, DefaultClusterAutoscalerAddonName)
if a.OrchestratorProfile.KubernetesConfig.Addons[s].IsEnabled(api.DefaultClusterAutoscalerAddonEnabled) {
a.OrchestratorProfile.KubernetesConfig.Addons[s] = assignDefaultAddonVals(a.OrchestratorProfile.KubernetesConfig.Addons[s], DefaultClusterAutoscalerAddonsConfig)
}
d := getAddonsIndexByName(a.OrchestratorProfile.KubernetesConfig.Addons, DefaultDashboardAddonName)
if a.OrchestratorProfile.KubernetesConfig.Addons[d].IsEnabled(api.DefaultDashboardAddonEnabled) {
a.OrchestratorProfile.KubernetesConfig.Addons[d] = assignDefaultAddonVals(a.OrchestratorProfile.KubernetesConfig.Addons[d], DefaultDashboardAddonsConfig)
}
r := getAddonsIndexByName(a.OrchestratorProfile.KubernetesConfig.Addons, DefaultReschedulerAddonName)
if a.OrchestratorProfile.KubernetesConfig.Addons[r].IsEnabled(api.DefaultReschedulerAddonEnabled) {
a.OrchestratorProfile.KubernetesConfig.Addons[r] = assignDefaultAddonVals(a.OrchestratorProfile.KubernetesConfig.Addons[r], DefaultReschedulerAddonsConfig)
}
m := getAddonsIndexByName(a.OrchestratorProfile.KubernetesConfig.Addons, DefaultMetricsServerAddonName)
if a.OrchestratorProfile.KubernetesConfig.Addons[m].IsEnabled(api.DefaultMetricsServerAddonEnabled) {
a.OrchestratorProfile.KubernetesConfig.Addons[m] = assignDefaultAddonVals(a.OrchestratorProfile.KubernetesConfig.Addons[m], DefaultMetricsServerAddonsConfig)
}
n := getAddonsIndexByName(a.OrchestratorProfile.KubernetesConfig.Addons, DefaultNVIDIADevicePluginAddonName)
if a.OrchestratorProfile.KubernetesConfig.Addons[n].IsEnabled(api.DefaultNVIDIADevicePluginAddonEnabled) {
a.OrchestratorProfile.KubernetesConfig.Addons[n] = assignDefaultAddonVals(a.OrchestratorProfile.KubernetesConfig.Addons[n], DefaultNVIDIADevicePluginAddonsConfig)
}
if o.KubernetesConfig.PrivateCluster == nil {
o.KubernetesConfig.PrivateCluster = &api.PrivateCluster{}
}
if o.KubernetesConfig.PrivateCluster.Enabled == nil {
o.KubernetesConfig.PrivateCluster.Enabled = helpers.PointerToBool(api.DefaultPrivateClusterEnabled)
}
if "" == a.OrchestratorProfile.KubernetesConfig.EtcdDiskSizeGB {
switch {
case a.TotalNodes() > 20:
a.OrchestratorProfile.KubernetesConfig.EtcdDiskSizeGB = DefaultEtcdDiskSizeGT20Nodes
case a.TotalNodes() > 10:
a.OrchestratorProfile.KubernetesConfig.EtcdDiskSizeGB = DefaultEtcdDiskSizeGT10Nodes
case a.TotalNodes() > 3:
a.OrchestratorProfile.KubernetesConfig.EtcdDiskSizeGB = DefaultEtcdDiskSizeGT3Nodes
default:
a.OrchestratorProfile.KubernetesConfig.EtcdDiskSizeGB = DefaultEtcdDiskSize
}
}
if helpers.IsTrueBoolPointer(o.KubernetesConfig.EnableDataEncryptionAtRest) {
if "" == a.OrchestratorProfile.KubernetesConfig.EtcdEncryptionKey {
a.OrchestratorProfile.KubernetesConfig.EtcdEncryptionKey = generateEtcdEncryptionKey()
}
}
if a.OrchestratorProfile.KubernetesConfig.PrivateJumpboxProvision() && a.OrchestratorProfile.KubernetesConfig.PrivateCluster.JumpboxProfile.OSDiskSizeGB == 0 {
a.OrchestratorProfile.KubernetesConfig.PrivateCluster.JumpboxProfile.OSDiskSizeGB = DefaultJumpboxDiskSize
}
if a.OrchestratorProfile.KubernetesConfig.PrivateJumpboxProvision() && a.OrchestratorProfile.KubernetesConfig.PrivateCluster.JumpboxProfile.Username == "" {
a.OrchestratorProfile.KubernetesConfig.PrivateCluster.JumpboxProfile.Username = DefaultJumpboxUsername
}
if a.OrchestratorProfile.KubernetesConfig.PrivateJumpboxProvision() && a.OrchestratorProfile.KubernetesConfig.PrivateCluster.JumpboxProfile.StorageProfile == "" {
a.OrchestratorProfile.KubernetesConfig.PrivateCluster.JumpboxProfile.StorageProfile = api.ManagedDisks
}
if a.OrchestratorProfile.KubernetesConfig.EnableRbac == nil {
a.OrchestratorProfile.KubernetesConfig.EnableRbac = helpers.PointerToBool(api.DefaultRBACEnabled)
}
if a.OrchestratorProfile.KubernetesConfig.EnableSecureKubelet == nil {
a.OrchestratorProfile.KubernetesConfig.EnableSecureKubelet = helpers.PointerToBool(api.DefaultSecureKubeletEnabled)
}
if a.OrchestratorProfile.KubernetesConfig.UseInstanceMetadata == nil {
a.OrchestratorProfile.KubernetesConfig.UseInstanceMetadata = helpers.PointerToBool(api.DefaultUseInstanceMetadata)
}
// Configure kubelet
setKubeletConfig(cs)
// Configure controller-manager
setControllerManagerConfig(cs)
// Configure cloud-controller-manager
setCloudControllerManagerConfig(cs)
// Configure apiserver
setAPIServerConfig(cs)
// Configure scheduler
setSchedulerConfig(cs)
case api.DCOS:
if o.DcosConfig == nil {
o.DcosConfig = &api.DcosConfig{}
}
if o.DcosConfig.DcosWindowsBootstrapURL == "" {
o.DcosConfig.DcosWindowsBootstrapURL = DefaultDCOSSpecConfig.DCOSWindowsBootstrapDownloadURL
}
dcosSemVer, _ := semver.NewVersion(o.OrchestratorVersion)
dcosBootstrapSemVer, _ := semver.NewVersion(common.DCOSVersion1Dot11Dot0)
if !dcosSemVer.LessThan(dcosBootstrapSemVer) {
if o.DcosConfig.BootstrapProfile == nil {
o.DcosConfig.BootstrapProfile = &api.BootstrapProfile{}
}
if len(o.DcosConfig.BootstrapProfile.VMSize) == 0 {
o.DcosConfig.BootstrapProfile.VMSize = "Standard_D2s_v3"
}
}
case api.OpenShift:
if a.MasterProfile.Distro == "" {
a.MasterProfile.Distro = api.RHEL
}
kc := a.OrchestratorProfile.OpenShiftConfig.KubernetesConfig
if kc == nil {
kc = &api.KubernetesConfig{}
}
if kc.ContainerRuntime == "" {
kc.ContainerRuntime = DefaultContainerRuntime
}
if kc.NetworkPlugin == "" {
kc.NetworkPlugin = DefaultNetworkPlugin
}
}
}
func setExtensionDefaults(a *api.Properties) {
if a.ExtensionProfiles == nil {
return
}
for _, extension := range a.ExtensionProfiles {
if extension.RootURL == "" {
extension.RootURL = DefaultExtensionsRootURL
}
}
}
// SetHostedMasterNetworkDefaults for hosted masters
func setHostedMasterNetworkDefaults(a *api.Properties) {
if a.HostedMasterProfile == nil {
return
}
a.HostedMasterProfile.Subnet = DefaultKubernetesMasterSubnet
}
// SetMasterNetworkDefaults for masters
func setMasterNetworkDefaults(a *api.Properties, isUpgrade bool) {
if a.MasterProfile == nil {
return
}
// Set default Distro to Ubuntu
if a.MasterProfile.Distro == "" {
a.MasterProfile.Distro = api.Ubuntu
}
if !a.MasterProfile.IsCustomVNET() {
if a.OrchestratorProfile.OrchestratorType == api.Kubernetes {
if a.OrchestratorProfile.IsAzureCNI() {
// When VNET integration is enabled, all masters, agents and pods share the same large subnet.
a.MasterProfile.Subnet = a.OrchestratorProfile.KubernetesConfig.ClusterSubnet
// FirstConsecutiveStaticIP is not reset if it is upgrade and some value already exists
if !isUpgrade || len(a.MasterProfile.FirstConsecutiveStaticIP) == 0 {
a.MasterProfile.FirstConsecutiveStaticIP = getFirstConsecutiveStaticIPAddress(a.MasterProfile.Subnet)
}
} else {
a.MasterProfile.Subnet = DefaultKubernetesMasterSubnet
// FirstConsecutiveStaticIP is not reset if it is upgrade and some value already exists
if !isUpgrade || len(a.MasterProfile.FirstConsecutiveStaticIP) == 0 {
a.MasterProfile.FirstConsecutiveStaticIP = DefaultFirstConsecutiveKubernetesStaticIP
}
}
} else if a.OrchestratorProfile.OrchestratorType == api.OpenShift {
a.MasterProfile.Subnet = DefaultOpenShiftMasterSubnet
if !isUpgrade || len(a.MasterProfile.FirstConsecutiveStaticIP) == 0 {
a.MasterProfile.FirstConsecutiveStaticIP = DefaultOpenShiftFirstConsecutiveStaticIP
}
} else if a.OrchestratorProfile.OrchestratorType == api.DCOS {
a.MasterProfile.Subnet = DefaultDCOSMasterSubnet
// FirstConsecutiveStaticIP is not reset if it is upgrade and some value already exists
if !isUpgrade || len(a.MasterProfile.FirstConsecutiveStaticIP) == 0 {
a.MasterProfile.FirstConsecutiveStaticIP = DefaultDCOSFirstConsecutiveStaticIP
}
if a.OrchestratorProfile.DcosConfig != nil && a.OrchestratorProfile.DcosConfig.BootstrapProfile != nil {
if !isUpgrade || len(a.OrchestratorProfile.DcosConfig.BootstrapProfile.StaticIP) == 0 {
a.OrchestratorProfile.DcosConfig.BootstrapProfile.StaticIP = DefaultDCOSBootstrapStaticIP
}
}
} else if a.HasWindows() {
a.MasterProfile.Subnet = DefaultSwarmWindowsMasterSubnet
// FirstConsecutiveStaticIP is not reset if it is upgrade and some value already exists
if !isUpgrade || len(a.MasterProfile.FirstConsecutiveStaticIP) == 0 {
a.MasterProfile.FirstConsecutiveStaticIP = DefaultSwarmWindowsFirstConsecutiveStaticIP
}
} else {
a.MasterProfile.Subnet = DefaultMasterSubnet
// FirstConsecutiveStaticIP is not reset if it is upgrade and some value already exists
if !isUpgrade || len(a.MasterProfile.FirstConsecutiveStaticIP) == 0 {
a.MasterProfile.FirstConsecutiveStaticIP = DefaultFirstConsecutiveStaticIP
}
}
}
// Set the default number of IP addresses allocated for masters.
if a.MasterProfile.IPAddressCount == 0 {
// Allocate one IP address for the node.
a.MasterProfile.IPAddressCount = 1
// Allocate IP addresses for pods if VNET integration is enabled.
if a.OrchestratorProfile.IsAzureCNI() {
if a.OrchestratorProfile.OrchestratorType == api.Kubernetes {
masterMaxPods, _ := strconv.Atoi(a.MasterProfile.KubernetesConfig.KubeletConfig["--max-pods"])
a.MasterProfile.IPAddressCount += masterMaxPods
}
}
}
if a.MasterProfile.HTTPSourceAddressPrefix == "" {
a.MasterProfile.HTTPSourceAddressPrefix = "*"
}
}
// SetAgentNetworkDefaults for agents
func setAgentNetworkDefaults(a *api.Properties) {
// configure the subnets if not in custom VNET
if a.MasterProfile != nil && !a.MasterProfile.IsCustomVNET() {
subnetCounter := 0
for _, profile := range a.AgentPoolProfiles {
if a.OrchestratorProfile.OrchestratorType == api.Kubernetes ||
a.OrchestratorProfile.OrchestratorType == api.OpenShift {
profile.Subnet = a.MasterProfile.Subnet
} else {
profile.Subnet = fmt.Sprintf(DefaultAgentSubnetTemplate, subnetCounter)
}
subnetCounter++
}
}
for _, profile := range a.AgentPoolProfiles {
// set default OSType to Linux
if profile.OSType == "" {
profile.OSType = api.Linux
}
// set default Distro to Ubuntu
if profile.Distro == "" {
profile.Distro = api.Ubuntu
}
// Set the default number of IP addresses allocated for agents.
if profile.IPAddressCount == 0 {
// Allocate one IP address for the node.
profile.IPAddressCount = 1
// Allocate IP addresses for pods if VNET integration is enabled.
if a.OrchestratorProfile.IsAzureCNI() {
agentPoolMaxPods, _ := strconv.Atoi(profile.KubernetesConfig.KubeletConfig["--max-pods"])
profile.IPAddressCount += agentPoolMaxPods
}
}
}
}
// setStorageDefaults for agents
func setStorageDefaults(a *api.Properties) {
if a.MasterProfile != nil && len(a.MasterProfile.StorageProfile) == 0 {
if a.OrchestratorProfile.OrchestratorType == api.Kubernetes {
a.MasterProfile.StorageProfile = api.ManagedDisks
} else {
a.MasterProfile.StorageProfile = api.StorageAccount
}
}
for _, profile := range a.AgentPoolProfiles {
if len(profile.StorageProfile) == 0 {
if a.OrchestratorProfile.OrchestratorType == api.Kubernetes {
profile.StorageProfile = api.ManagedDisks
} else {
profile.StorageProfile = api.StorageAccount
}
}
if len(profile.AvailabilityProfile) == 0 {
profile.AvailabilityProfile = api.VirtualMachineScaleSets
if a.OrchestratorProfile.OrchestratorType == api.Kubernetes && !common.IsKubernetesVersionGe(a.OrchestratorProfile.OrchestratorVersion, "1.10.0") {
profile.AvailabilityProfile = api.AvailabilitySet
}
}
if len(profile.ScaleSetEvictionPolicy) == 0 && profile.ScaleSetPriority == api.ScaleSetPriorityLow {
profile.ScaleSetEvictionPolicy = api.ScaleSetEvictionPolicyDelete
}
}
}
func setDefaultCerts(a *api.Properties) (bool, error) {
if a.MasterProfile != nil && a.OrchestratorProfile.OrchestratorType == api.OpenShift {
return certgen.OpenShiftSetDefaultCerts(a, DefaultOpenshiftOrchestratorName, GenerateClusterID(a))
}
if a.MasterProfile == nil || a.OrchestratorProfile.OrchestratorType != api.Kubernetes {
return false, nil
}
provided := certsAlreadyPresent(a.CertificateProfile, a.MasterProfile.Count)
if areAllTrue(provided) {
return false, nil
}
masterExtraFQDNs := append(formatAzureProdFQDNs(a.MasterProfile.DNSPrefix), a.MasterProfile.SubjectAltNames...)
firstMasterIP := net.ParseIP(a.MasterProfile.FirstConsecutiveStaticIP).To4()
if firstMasterIP == nil {
return false, fmt.Errorf("MasterProfile.FirstConsecutiveStaticIP '%s' is an invalid IP address", a.MasterProfile.FirstConsecutiveStaticIP)
}
ips := []net.IP{firstMasterIP}
// Add the Internal Loadbalancer IP which is always at at a known offset from the firstMasterIP
ips = append(ips, net.IP{firstMasterIP[0], firstMasterIP[1], firstMasterIP[2], firstMasterIP[3] + byte(DefaultInternalLbStaticIPOffset)})
// Include the Internal load balancer as well
for i := 1; i < a.MasterProfile.Count; i++ {
ip := net.IP{firstMasterIP[0], firstMasterIP[1], firstMasterIP[2], firstMasterIP[3] + byte(i)}
ips = append(ips, ip)
}
if a.CertificateProfile == nil {
a.CertificateProfile = &api.CertificateProfile{}
}
// use the specified Certificate Authority pair, or generate a new pair
var caPair *PkiKeyCertPair
if provided["ca"] {
caPair = &PkiKeyCertPair{CertificatePem: a.CertificateProfile.CaCertificate, PrivateKeyPem: a.CertificateProfile.CaPrivateKey}
} else {
caCertificate, caPrivateKey, err := createCertificate("ca", nil, nil, false, false, nil, nil, nil)
if err != nil {
return false, err
}
caPair = &PkiKeyCertPair{CertificatePem: string(certificateToPem(caCertificate.Raw)), PrivateKeyPem: string(privateKeyToPem(caPrivateKey))}
a.CertificateProfile.CaCertificate = caPair.CertificatePem
a.CertificateProfile.CaPrivateKey = caPair.PrivateKeyPem
}
cidrFirstIP, err := common.CidrStringFirstIP(a.OrchestratorProfile.KubernetesConfig.ServiceCIDR)
if err != nil {
return false, err
}
ips = append(ips, cidrFirstIP)
apiServerPair, clientPair, kubeConfigPair, etcdServerPair, etcdClientPair, etcdPeerPairs, err := CreatePki(masterExtraFQDNs, ips, DefaultKubernetesClusterDomain, caPair, a.MasterProfile.Count)
if err != nil {
return false, err
}
// If no Certificate Authority pair or no cert/key pair was provided, use generated cert/key pairs signed by provided Certificate Authority pair
if !provided["apiserver"] || !provided["ca"] {
a.CertificateProfile.APIServerCertificate = apiServerPair.CertificatePem
a.CertificateProfile.APIServerPrivateKey = apiServerPair.PrivateKeyPem
}
if !provided["client"] || !provided["ca"] {
a.CertificateProfile.ClientCertificate = clientPair.CertificatePem
a.CertificateProfile.ClientPrivateKey = clientPair.PrivateKeyPem
}
if !provided["kubeconfig"] || !provided["ca"] {
a.CertificateProfile.KubeConfigCertificate = kubeConfigPair.CertificatePem
a.CertificateProfile.KubeConfigPrivateKey = kubeConfigPair.PrivateKeyPem
}
if !provided["etcd"] || !provided["ca"] {
a.CertificateProfile.EtcdServerCertificate = etcdServerPair.CertificatePem
a.CertificateProfile.EtcdServerPrivateKey = etcdServerPair.PrivateKeyPem
a.CertificateProfile.EtcdClientCertificate = etcdClientPair.CertificatePem
a.CertificateProfile.EtcdClientPrivateKey = etcdClientPair.PrivateKeyPem
a.CertificateProfile.EtcdPeerCertificates = make([]string, a.MasterProfile.Count)
a.CertificateProfile.EtcdPeerPrivateKeys = make([]string, a.MasterProfile.Count)
for i, v := range etcdPeerPairs {
a.CertificateProfile.EtcdPeerCertificates[i] = v.CertificatePem
a.CertificateProfile.EtcdPeerPrivateKeys[i] = v.PrivateKeyPem
}
}
return true, nil
}
func areAllTrue(m map[string]bool) bool {
for _, v := range m {
if !v {
return false
}
}
return true
}
// certsAlreadyPresent already present returns a map where each key is a type of cert and each value is true if that cert/key pair is user-provided
func certsAlreadyPresent(c *api.CertificateProfile, m int) map[string]bool {
g := map[string]bool{
"ca": false,
"apiserver": false,
"kubeconfig": false,
"client": false,
"etcd": false,
}
if c != nil {
etcdPeer := true
if len(c.EtcdPeerCertificates) != m || len(c.EtcdPeerPrivateKeys) != m {
etcdPeer = false
} else {
for i, p := range c.EtcdPeerCertificates {
if !(len(p) > 0) || !(len(c.EtcdPeerPrivateKeys[i]) > 0) {
etcdPeer = false
}
}
}
g["ca"] = len(c.CaCertificate) > 0 && len(c.CaPrivateKey) > 0
g["apiserver"] = len(c.APIServerCertificate) > 0 && len(c.APIServerPrivateKey) > 0
g["kubeconfig"] = len(c.KubeConfigCertificate) > 0 && len(c.KubeConfigPrivateKey) > 0
g["client"] = len(c.ClientCertificate) > 0 && len(c.ClientPrivateKey) > 0
g["etcd"] = etcdPeer && len(c.EtcdClientCertificate) > 0 && len(c.EtcdClientPrivateKey) > 0 && len(c.EtcdServerCertificate) > 0 && len(c.EtcdServerPrivateKey) > 0
}
return g
}
// getFirstConsecutiveStaticIPAddress returns the first static IP address of the given subnet.
func getFirstConsecutiveStaticIPAddress(subnetStr string) string {
_, subnet, err := net.ParseCIDR(subnetStr)
if err != nil {
return DefaultFirstConsecutiveKubernetesStaticIP
}
// Find the first and last octet of the host bits.
ones, bits := subnet.Mask.Size()
firstOctet := ones / 8
lastOctet := bits/8 - 1
// Set the remaining host bits in the first octet.
subnet.IP[firstOctet] |= (1 << byte((8 - (ones % 8)))) - 1
// Fill the intermediate octets with 1s and last octet with offset. This is done so to match
// the existing behavior of allocating static IP addresses from the last /24 of the subnet.
for i := firstOctet + 1; i < lastOctet; i++ {
subnet.IP[i] = 255
}
subnet.IP[lastOctet] = DefaultKubernetesFirstConsecutiveStaticIPOffset
return subnet.IP.String()
}
func getAddonsIndexByName(addons []api.KubernetesAddon, name string) int {
for i := range addons {
if addons[i].Name == name {
return i
}
}
return -1
}
func getAddonContainersIndexByName(containers []api.KubernetesContainerSpec, name string) int {
for i := range containers {
if containers[i].Name == name {
return i
}
}
return -1
}
// assignDefaultAddonVals will assign default values to addon from defaults, for each property in addon that has a zero value
func assignDefaultAddonVals(addon, defaults api.KubernetesAddon) api.KubernetesAddon {
if addon.Enabled == nil {
addon.Enabled = defaults.Enabled
}
for i := range defaults.Containers {
c := getAddonContainersIndexByName(addon.Containers, defaults.Containers[i].Name)
if c < 0 {
addon.Containers = append(addon.Containers, defaults.Containers[i])
} else {
if addon.Containers[c].Image == "" {
addon.Containers[c].Image = defaults.Containers[i].Image
}
if addon.Containers[c].CPURequests == "" {
addon.Containers[c].CPURequests = defaults.Containers[i].CPURequests
}
if addon.Containers[c].MemoryRequests == "" {
addon.Containers[c].MemoryRequests = defaults.Containers[i].MemoryRequests
}
if addon.Containers[c].CPULimits == "" {
addon.Containers[c].CPULimits = defaults.Containers[i].CPULimits
}
if addon.Containers[c].MemoryLimits == "" {
addon.Containers[c].MemoryLimits = defaults.Containers[i].MemoryLimits
}
}
}
for key, val := range defaults.Config {
if addon.Config == nil {
addon.Config = make(map[string]string)
}
if v, ok := addon.Config[key]; !ok || v == "" {
addon.Config[key] = val
}
}
return addon
}
// combine user-provided --feature-gates vals with defaults