/
infrastructure.go
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/
infrastructure.go
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package validation
import (
"fmt"
"net"
"github.com/gardener/gardener/pkg/apis/core"
gardencorev1beta1 "github.com/gardener/gardener/pkg/apis/core/v1beta1"
apivalidation "k8s.io/apimachinery/pkg/api/validation"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/util/validation/field"
apismetal "github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal"
"github.com/metal-stack/gardener-extension-provider-metal/pkg/apis/metal/helper"
)
// ValidateInfrastructureConfigAgainstCloudProfile validates the given `InfrastructureConfig` against the given `CloudProfile`.
func ValidateInfrastructureConfigAgainstCloudProfile(infra *apismetal.InfrastructureConfig, shoot *core.Shoot, cloudProfile *gardencorev1beta1.CloudProfile, cloudProfileConfig *apismetal.CloudProfileConfig, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
shootRegion := shoot.Spec.Region
for _, region := range cloudProfile.Spec.Regions {
if region.Name == shootRegion {
allErrs = append(allErrs, validateInfrastructureConfigZones(infra, region.Zones, fldPath)...)
break
}
}
firewallPath := fldPath.Child("firewall")
if len(infra.Firewall.Networks) == 0 {
allErrs = append(allErrs, field.Required(firewallPath.Child("networks"), "at least one external network needs to be defined as otherwise the cluster will under no circumstances be able to bootstrap"))
}
if cloudProfileConfig == nil {
return allErrs
}
mcp, p, err := helper.FindMetalControlPlane(cloudProfileConfig, infra.PartitionID)
if err != nil {
allErrs = append(allErrs, field.Invalid(fldPath.Child("partitionID"), infra.PartitionID, "cloud profile does not define the given shoot partition"))
return allErrs
}
availableFirewallImages := sets.NewString(mcp.FirewallImages...)
if availableFirewallImages.Len() > 0 && !availableFirewallImages.Has(infra.Firewall.Image) {
allErrs = append(allErrs, field.Invalid(firewallPath.Child("image"), infra.Firewall.Image, fmt.Sprintf("supported values: %v", availableFirewallImages.List())))
}
availableFirewallTypes := sets.NewString(p.FirewallTypes...)
if availableFirewallTypes.Len() > 0 && !availableFirewallTypes.Has(infra.Firewall.Size) {
allErrs = append(allErrs, field.Invalid(firewallPath.Child("size"), infra.Firewall.Size, fmt.Sprintf("supported values: %v", availableFirewallTypes.List())))
}
var availableFirewallControllerVersions []apismetal.FirewallControllerVersion
availableFirewallControllerVersions = append(
availableFirewallControllerVersions,
mcp.FirewallControllerVersions...,
)
// Check if firewall-controller version is allowed
if _, err := ValidateFirewallControllerVersion(
availableFirewallControllerVersions,
infra.Firewall.ControllerVersion,
); err != nil {
allErrs = append(allErrs, field.Required(field.NewPath("controllerVersion"), err.Error()))
}
return allErrs
}
// validateInfrastructureConfigZones validates the given `InfrastructureConfig` against the given `Zones`.
func validateInfrastructureConfigZones(infra *apismetal.InfrastructureConfig, zones []gardencorev1beta1.AvailabilityZone, fldPath *field.Path) field.ErrorList {
allErrs := field.ErrorList{}
availableZones := sets.NewString()
for _, zone := range zones {
availableZones.Insert(zone.Name)
}
if !availableZones.Has(infra.PartitionID) {
allErrs = append(allErrs, field.Invalid(fldPath.Child("partitionID"), infra.PartitionID, fmt.Sprintf("supported values: %v", availableZones.UnsortedList())))
}
return allErrs
}
// ValidateInfrastructureConfig validates a InfrastructureConfig object.
func ValidateInfrastructureConfig(infra *apismetal.InfrastructureConfig) field.ErrorList {
allErrs := field.ErrorList{}
if infra.ProjectID == "" {
allErrs = append(allErrs, field.Required(field.NewPath("projectID"), "projectID must be specified"))
}
if infra.PartitionID == "" {
allErrs = append(allErrs, field.Required(field.NewPath("partitionID"), "partitionID must be specified"))
}
firewallPath := field.NewPath("firewall")
if infra.Firewall.Image == "" {
allErrs = append(allErrs, field.Required(firewallPath.Child("image"), "firewall image must be specified"))
}
if infra.Firewall.Size == "" {
allErrs = append(allErrs, field.Required(firewallPath.Child("size"), "firewall size must be specified"))
}
availableNetworks := sets.NewString()
for i, network := range infra.Firewall.Networks {
if network == "" {
allErrs = append(allErrs, field.Required(firewallPath.Child("networks").Index(i), "firewall network must not be an empty string"))
continue
}
availableNetworks.Insert(network)
}
for i, rateLimit := range infra.Firewall.RateLimits {
fp := firewallPath.Child("rateLimit").Index(i)
if rateLimit.NetworkID == "" {
allErrs = append(allErrs, field.Required(fp, "rate limit network must not be an empty string"))
continue
}
if !availableNetworks.Has(rateLimit.NetworkID) {
allErrs = append(allErrs, field.Required(fp, "rate limit network must be present as cluster network"))
continue
}
}
for i, egress := range infra.Firewall.EgressRules {
fp := firewallPath.Child("egressRules").Index(i)
if egress.NetworkID == "" {
allErrs = append(allErrs, field.Required(fp, "egress rule network must not be an empty string"))
continue
}
if !availableNetworks.Has(egress.NetworkID) {
allErrs = append(allErrs, field.Required(fp, "egress rule network must be present as cluster network"))
continue
}
if len(egress.IPs) == 0 {
allErrs = append(allErrs, field.Required(fp, "egress rule must contain ip addresses to use"))
continue
}
for _, ip := range egress.IPs {
if net.ParseIP(ip) == nil {
allErrs = append(allErrs, field.Required(fp, "egress rule contains a malformed ip address"))
}
}
}
return allErrs
}
// ValidateInfrastructureConfigUpdate validates a InfrastructureConfig object.
func ValidateInfrastructureConfigUpdate(oldConfig, newConfig *apismetal.InfrastructureConfig, cloudProfileConfig *apismetal.CloudProfileConfig) field.ErrorList {
allErrs := field.ErrorList{}
allErrs = append(allErrs, apivalidation.ValidateImmutableField(newConfig.ProjectID, oldConfig.ProjectID, field.NewPath("projectID"))...)
allErrs = append(allErrs, apivalidation.ValidateImmutableField(newConfig.PartitionID, oldConfig.PartitionID, field.NewPath("partitionID"))...)
firewallPath := field.NewPath("firewall")
if len(newConfig.Firewall.Networks) == 0 {
allErrs = append(allErrs, field.Required(firewallPath.Child("networks"), "at least one external network needs to be defined as otherwise the cluster will under no circumstances be able to bootstrap"))
}
mcp, p, err := helper.FindMetalControlPlane(cloudProfileConfig, newConfig.PartitionID)
if err != nil {
allErrs = append(allErrs, field.Invalid(field.NewPath("partitionID"), newConfig.PartitionID, "cloud profile does not define the given shoot partition"))
return allErrs
}
availableFirewallImages := sets.NewString(mcp.FirewallImages...)
if availableFirewallImages.Len() > 0 && !availableFirewallImages.Has(newConfig.Firewall.Image) {
allErrs = append(allErrs, field.Invalid(firewallPath.Child("image"), newConfig.Firewall.Image, fmt.Sprintf("supported values: %v", availableFirewallImages.List())))
}
availableFirewallTypes := sets.NewString(p.FirewallTypes...)
if availableFirewallTypes.Len() > 0 && !availableFirewallTypes.Has(newConfig.Firewall.Size) {
allErrs = append(allErrs, field.Invalid(firewallPath.Child("size"), newConfig.Firewall.Size, fmt.Sprintf("supported values: %v", availableFirewallTypes.List())))
}
var availableFirewallControllerVersions []apismetal.FirewallControllerVersion
availableFirewallControllerVersions = append(
availableFirewallControllerVersions,
mcp.FirewallControllerVersions...,
)
// Check if firewall-controller version is allowed
if _, err := ValidateFirewallControllerVersion(
availableFirewallControllerVersions,
newConfig.Firewall.ControllerVersion,
); err != nil {
allErrs = append(allErrs, field.Required(field.NewPath("controllerVersion"), err.Error()))
}
return allErrs
}