/
cloudprofile.go
186 lines (163 loc) · 6.97 KB
/
cloudprofile.go
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package validation
import (
"fmt"
"net/netip"
"net/url"
"github.com/gardener/gardener/pkg/apis/core"
apismetal "github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/validation/field"
)
var supportedVersionClassifications = sets.NewString(string(apismetal.ClassificationPreview), string(apismetal.ClassificationSupported), string(apismetal.ClassificationDeprecated))
// ValidateCloudProfileConfig validates a CloudProfileConfig object.
func ValidateCloudProfileConfig(cloudProfileConfig *apismetal.CloudProfileConfig, cloudProfile *core.CloudProfile, providerConfigPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
availableZones := sets.NewString()
for _, region := range cloudProfile.Spec.Regions {
for _, zone := range region.Zones {
availableZones.Insert(zone.Name)
}
}
controlPlanesPath := providerConfigPath.Child("metalControlPlanes")
for mcpName, mcp := range cloudProfileConfig.MetalControlPlanes {
mcpField := controlPlanesPath.Child(mcpName)
versionSet := sets.NewString()
for _, v := range mcp.FirewallControllerVersions {
fwcField := mcpField.Child("firewallControllerVersions")
if v.Classification != nil && !supportedVersionClassifications.Has(string(*v.Classification)) {
allErrs = append(allErrs, field.NotSupported(fwcField.Child("classification"), *v.Classification, supportedVersionClassifications.List()))
}
versionSet.Insert(v.Version)
}
if versionSet.Len() != len(mcp.FirewallControllerVersions) {
allErrs = append(allErrs, field.Invalid(mcpField.Child("firewallcontrollerversions"), "version", "contains duplicate entries"))
}
for partitionName, partition := range mcp.Partitions {
if !availableZones.Has(partitionName) {
allErrs = append(allErrs, field.Invalid(mcpField, partitionName, fmt.Sprintf("the control plane has a partition that is not a configured zone in any of the cloud profile regions: %v", availableZones.List())))
}
if partition.NetworkIsolation == nil {
continue
}
networkIsolationField := mcpField.Child(partitionName, "networkIsolation")
if len(partition.NetworkIsolation.DNSServers) > 3 {
dnsField := networkIsolationField.Child("dnsServers")
allErrs = append(allErrs, field.Invalid(dnsField, partition.NetworkIsolation.DNSServers, "only up to 3 dns servers are allowed"))
}
for index, ip := range partition.NetworkIsolation.DNSServers {
ipField := networkIsolationField.Child("dnsServers").Index(index)
if _, err := netip.ParseAddr(ip); err != nil {
allErrs = append(allErrs, field.Invalid(ipField, ip, "invalid ip address"))
}
}
for index, ip := range partition.NetworkIsolation.NTPServers {
ipField := networkIsolationField.Child("ntpServers").Index(index)
if _, err := netip.ParseAddr(ip); err != nil {
allErrs = append(allErrs, field.Invalid(ipField, ip, "invalid ip address"))
}
}
for index, cidr := range partition.NetworkIsolation.AllowedNetworks.Egress {
ipField := networkIsolationField.Child("allowedNetworks", "egress").Index(index)
if _, err := netip.ParsePrefix(cidr); err != nil {
allErrs = append(allErrs, field.Invalid(ipField, cidr, "invalid cidr"))
}
}
for index, cidr := range partition.NetworkIsolation.AllowedNetworks.Ingress {
ipField := networkIsolationField.Child("allowedNetworks", "ingress").Index(index)
if _, err := netip.ParsePrefix(cidr); err != nil {
allErrs = append(allErrs, field.Invalid(ipField, cidr, "invalid cidr"))
}
}
for mirrIndex, mirr := range partition.NetworkIsolation.RegistryMirrors {
mirrorField := networkIsolationField.Child("registryMirrors").Index(mirrIndex)
if mirr.Name == "" {
allErrs = append(allErrs, field.Invalid(mirrorField.Child("name"), mirr.Name, "name of mirror may not be empty"))
}
endpointUrl, err := url.Parse(mirr.Endpoint)
if err != nil {
allErrs = append(allErrs, field.Invalid(mirrorField.Child("endpoint"), mirr.Endpoint, "not a valid url"))
} else if endpointUrl.Scheme != "http" && endpointUrl.Scheme != "https" {
allErrs = append(allErrs, field.Invalid(mirrorField.Child("endpoint"), mirr.Endpoint, "url must have the scheme http/s"))
}
if _, err := netip.ParseAddr(mirr.IP); err != nil {
allErrs = append(allErrs, field.Invalid(mirrorField.Child("ip"), mirr.IP, "invalid ip address"))
}
if mirr.Port == 0 {
allErrs = append(allErrs, field.Invalid(mirrorField.Child("port"), mirr.Port, "must be a valid port"))
}
if len(mirr.MirrorOf) == 0 {
allErrs = append(allErrs, field.Invalid(mirrorField.Child("mirrorOf"), mirr.MirrorOf, "registry mirror must replace existing registries"))
}
for regIndex, reg := range mirr.MirrorOf {
regField := mirrorField.Child("mirrorOf").Index(regIndex)
if reg == "" {
allErrs = append(allErrs, field.Invalid(regField, reg, "cannot be empty"))
}
regUrl, err := url.Parse("https://" + reg + "/")
if err != nil {
allErrs = append(allErrs, field.Invalid(regField, reg, "invalid registry"))
}
if regUrl.Host != reg {
allErrs = append(allErrs, field.Invalid(regField, reg, "not a valid registry host"))
}
}
}
}
}
return allErrs
}
func ValidateImmutableCloudProfileConfig(
newCloudProfileConfig *apismetal.CloudProfileConfig,
oldCloudProfileConfig *apismetal.CloudProfileConfig,
providerConfigPath *field.Path,
) field.ErrorList {
if oldCloudProfileConfig == nil {
return nil
}
allErrs := field.ErrorList{}
controlPlanesPath := providerConfigPath.Child("metalControlPlanes")
for mcpName, mcp := range newCloudProfileConfig.MetalControlPlanes {
oldMcp, ok := oldCloudProfileConfig.MetalControlPlanes[mcpName]
if !ok {
continue
}
mcpField := controlPlanesPath.Child(mcpName)
for partitionName, partition := range mcp.Partitions {
oldPartition, ok := oldMcp.Partitions[partitionName]
if !ok {
continue
}
if oldPartition.NetworkIsolation == nil {
continue
}
networkIsolationField := mcpField.Child(partitionName, "networkIsolation")
if oldPartition.NetworkIsolation != nil && partition.NetworkIsolation == nil {
allErrs = append(allErrs, field.Required(networkIsolationField, "cannot remove existing network isolations"))
continue
}
if len(partition.NetworkIsolation.DNSServers) != len(oldPartition.NetworkIsolation.DNSServers) {
dnsField := networkIsolationField.Child("dnsServers")
allErrs = append(allErrs, field.NotSupported(
dnsField,
partition.NetworkIsolation.DNSServers,
[]string{
fmt.Sprintf("%s", partition.NetworkIsolation.DNSServers),
},
))
continue
}
for index, ip := range partition.NetworkIsolation.DNSServers {
ipField := networkIsolationField.Child("dnsServers").Index(index)
oldIp := oldPartition.NetworkIsolation.DNSServers[index]
if ip != oldIp {
allErrs = append(allErrs, field.NotSupported(
ipField,
ip,
[]string{oldIp},
))
}
}
}
}
return allErrs
}