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virtualserver.go
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virtualserver.go
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package configs
import (
"crypto/sha256"
"encoding/hex"
"fmt"
"net/url"
"os"
"path"
"sort"
"strconv"
"strings"
"github.com/golang/glog"
"github.com/nginxinc/kubernetes-ingress/internal/configs/version2"
"github.com/nginxinc/kubernetes-ingress/internal/k8s/secrets"
"github.com/nginxinc/kubernetes-ingress/internal/nginx"
conf_v1 "github.com/nginxinc/kubernetes-ingress/pkg/apis/configuration/v1"
api_v1 "k8s.io/api/core/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
)
const (
nginx502Server = "unix:/var/lib/nginx/nginx-502-server.sock"
internalLocationPrefix = "internal_location_"
nginx418Server = "unix:/var/lib/nginx/nginx-418-server.sock"
specContext = "spec"
routeContext = "route"
subRouteContext = "subroute"
keyvalZoneBasePath = "/etc/nginx/state_files"
splitClientsKeyValZoneSize = "100k"
splitClientAmountWhenWeightChangesDynamicReload = 101
defaultLogOutput = "syslog:server=localhost:514"
)
var grpcConflictingErrors = map[int]bool{
400: true,
401: true,
403: true,
404: true,
405: true,
408: true,
413: true,
414: true,
415: true,
426: true,
429: true,
495: true,
496: true,
497: true,
500: true,
501: true,
502: true,
503: true,
504: true,
}
var incompatibleLBMethodsForSlowStart = map[string]bool{
"random": true,
"ip_hash": true,
"random two": true,
"random two least_conn": true,
"random two least_time=header": true,
"random two least_time=last_byte": true,
}
// MeshPodOwner contains the type and name of the K8s resource that owns the pod.
// This owner information is needed for NGINX Service Mesh metrics.
type MeshPodOwner struct {
// OwnerType is one of the following: statefulset, daemonset, deployment.
OwnerType string
// OwnerName is the name of the statefulset, daemonset, or deployment.
OwnerName string
}
// PodInfo contains the name of the Pod and the MeshPodOwner information
// which is used for NGINX Service Mesh metrics.
type PodInfo struct {
Name string
MeshPodOwner
}
// VirtualServerEx holds a VirtualServer along with the resources that are referenced in this VirtualServer.
type VirtualServerEx struct {
VirtualServer *conf_v1.VirtualServer
HTTPPort int
HTTPSPort int
Endpoints map[string][]string
VirtualServerRoutes []*conf_v1.VirtualServerRoute
ExternalNameSvcs map[string]bool
Policies map[string]*conf_v1.Policy
PodsByIP map[string]PodInfo
SecretRefs map[string]*secrets.SecretReference
ApPolRefs map[string]*unstructured.Unstructured
LogConfRefs map[string]*unstructured.Unstructured
DosProtectedRefs map[string]*unstructured.Unstructured
DosProtectedEx map[string]*DosEx
}
func (vsx *VirtualServerEx) String() string {
if vsx == nil {
return "<nil>"
}
if vsx.VirtualServer == nil {
return "VirtualServerEx has no VirtualServer"
}
return fmt.Sprintf("%s/%s", vsx.VirtualServer.Namespace, vsx.VirtualServer.Name)
}
// appProtectResourcesForVS holds file names of APPolicy and APLogConf resources used in a VirtualServer.
type appProtectResourcesForVS struct {
Policies map[string]string
LogConfs map[string]string
}
func newAppProtectVSResourcesForVS() *appProtectResourcesForVS {
return &appProtectResourcesForVS{
Policies: make(map[string]string),
LogConfs: make(map[string]string),
}
}
// GenerateEndpointsKey generates a key for the Endpoints map in VirtualServerEx.
func GenerateEndpointsKey(
serviceNamespace string,
serviceName string,
subselector map[string]string,
port uint16,
) string {
if len(subselector) > 0 {
return fmt.Sprintf("%s/%s_%s:%d", serviceNamespace, serviceName, labels.Set(subselector).String(), port)
}
return fmt.Sprintf("%s/%s:%d", serviceNamespace, serviceName, port)
}
type upstreamNamer struct {
prefix string
namespace string
}
// NewUpstreamNamerForVirtualServer creates a new namer.
//
//nolint:revive
func NewUpstreamNamerForVirtualServer(virtualServer *conf_v1.VirtualServer) *upstreamNamer {
return &upstreamNamer{
prefix: fmt.Sprintf("vs_%s_%s", virtualServer.Namespace, virtualServer.Name),
namespace: virtualServer.Namespace,
}
}
// NewUpstreamNamerForVirtualServerRoute creates a new namer.
//
//nolint:revive
func NewUpstreamNamerForVirtualServerRoute(virtualServer *conf_v1.VirtualServer, virtualServerRoute *conf_v1.VirtualServerRoute) *upstreamNamer {
return &upstreamNamer{
prefix: fmt.Sprintf(
"vs_%s_%s_vsr_%s_%s",
virtualServer.Namespace,
virtualServer.Name,
virtualServerRoute.Namespace,
virtualServerRoute.Name,
),
namespace: virtualServerRoute.Namespace,
}
}
func (namer *upstreamNamer) GetNameForUpstreamFromAction(action *conf_v1.Action) string {
var upstream string
if action.Proxy != nil && action.Proxy.Upstream != "" {
upstream = action.Proxy.Upstream
} else {
upstream = action.Pass
}
return fmt.Sprintf("%s_%s", namer.prefix, upstream)
}
func (namer *upstreamNamer) GetNameForUpstream(upstream string) string {
return fmt.Sprintf("%s_%s", namer.prefix, upstream)
}
// VariableNamer is a namer which generates unique variable names for a VirtualServer.
type VariableNamer struct {
safeNsName string
}
// NewVSVariableNamer creates a new namer for a VirtualServer.
func NewVSVariableNamer(virtualServer *conf_v1.VirtualServer) *VariableNamer {
safeNsName := strings.ReplaceAll(fmt.Sprintf("%s_%s", virtualServer.Namespace, virtualServer.Name), "-", "_")
return &VariableNamer{
safeNsName: safeNsName,
}
}
// GetNameOfKeyvalZoneForSplitClientIndex returns a unique name for a keyval zone for split clients.
func (namer *VariableNamer) GetNameOfKeyvalZoneForSplitClientIndex(index int) string {
return fmt.Sprintf("vs_%s_keyval_zone_split_clients_%d", namer.safeNsName, index)
}
// GetNameOfKeyvalForSplitClientIndex returns a unique name for a keyval for split clients.
func (namer *VariableNamer) GetNameOfKeyvalForSplitClientIndex(index int) string {
return fmt.Sprintf("$vs_%s_keyval_split_clients_%d", namer.safeNsName, index)
}
// GetNameOfKeyvalKeyForSplitClientIndex returns a unique name for a keyval key for split clients.
func (namer *VariableNamer) GetNameOfKeyvalKeyForSplitClientIndex(index int) string {
return fmt.Sprintf("\"vs_%s_keyval_key_split_clients_%d\"", namer.safeNsName, index)
}
// GetNameOfMapForSplitClientIndex returns a unique name for a map for split clients.
func (namer *VariableNamer) GetNameOfMapForSplitClientIndex(index int) string {
return fmt.Sprintf("$vs_%s_map_split_clients_%d", namer.safeNsName, index)
}
// GetNameOfKeyOfMapForWeights returns a unique name for a key of a map for split clients.
func (namer *VariableNamer) GetNameOfKeyOfMapForWeights(index int, i int, j int) string {
return fmt.Sprintf("\"vs_%s_split_clients_%d_%d_%d\"", namer.safeNsName, index, i, j)
}
// GetNameOfSplitClientsForWeights gets the name of the split clients for a particular combination of weights and scIndex.
func (namer *VariableNamer) GetNameOfSplitClientsForWeights(index int, i int, j int) string {
return fmt.Sprintf("$vs_%s_split_clients_%d_%d_%d", namer.safeNsName, index, i, j)
}
// GetNameForSplitClientVariable gets the name of a split client variable for a particular scIndex.
func (namer *VariableNamer) GetNameForSplitClientVariable(index int) string {
return fmt.Sprintf("$vs_%s_splits_%d", namer.safeNsName, index)
}
// GetNameForVariableForMatchesRouteMap gets the name of a matches route map
func (namer *VariableNamer) GetNameForVariableForMatchesRouteMap(
matchesIndex int,
matchIndex int,
conditionIndex int,
) string {
return fmt.Sprintf("$vs_%s_matches_%d_match_%d_cond_%d", namer.safeNsName, matchesIndex, matchIndex, conditionIndex)
}
// GetNameForVariableForMatchesRouteMainMap gets the name of a matches route main map
func (namer *VariableNamer) GetNameForVariableForMatchesRouteMainMap(matchesIndex int) string {
return fmt.Sprintf("$vs_%s_matches_%d", namer.safeNsName, matchesIndex)
}
func newHealthCheckWithDefaults(upstream conf_v1.Upstream, upstreamName string, cfgParams *ConfigParams) *version2.HealthCheck {
uri := "/"
if isGRPC(upstream.Type) {
uri = ""
}
return &version2.HealthCheck{
Name: upstreamName,
URI: uri,
Interval: "5s",
Jitter: "0s",
KeepaliveTime: "60s",
Fails: 1,
Passes: 1,
ProxyPass: fmt.Sprintf("%v://%v", generateProxyPassProtocol(upstream.TLS.Enable), upstreamName),
ProxyConnectTimeout: generateTimeWithDefault(upstream.ProxyConnectTimeout, cfgParams.ProxyConnectTimeout),
ProxyReadTimeout: generateTimeWithDefault(upstream.ProxyReadTimeout, cfgParams.ProxyReadTimeout),
ProxySendTimeout: generateTimeWithDefault(upstream.ProxySendTimeout, cfgParams.ProxySendTimeout),
Headers: make(map[string]string),
GRPCPass: generateGRPCPass(isGRPC(upstream.Type), upstream.TLS.Enable, upstreamName),
IsGRPC: isGRPC(upstream.Type),
}
}
// VirtualServerConfigurator generates a VirtualServer configuration
type virtualServerConfigurator struct {
cfgParams *ConfigParams
isPlus bool
isWildcardEnabled bool
isResolverConfigured bool
isTLSPassthrough bool
enableSnippets bool
warnings Warnings
spiffeCerts bool
enableInternalRoutes bool
oidcPolCfg *oidcPolicyCfg
isIPV6Disabled bool
DynamicSSLReloadEnabled bool
StaticSSLPath string
DynamicWeightChangesReload bool
bundleValidator bundleValidator
IngressControllerReplicas int
}
type oidcPolicyCfg struct {
oidc *version2.OIDC
key string
}
func (vsc *virtualServerConfigurator) addWarningf(obj runtime.Object, msgFmt string, args ...interface{}) {
vsc.warnings.AddWarningf(obj, msgFmt, args...)
}
func (vsc *virtualServerConfigurator) addWarnings(obj runtime.Object, msgs []string) {
for _, msg := range msgs {
vsc.warnings.AddWarning(obj, msg)
}
}
func (vsc *virtualServerConfigurator) clearWarnings() {
vsc.warnings = make(map[runtime.Object][]string)
}
// newVirtualServerConfigurator creates a new VirtualServerConfigurator
func newVirtualServerConfigurator(
cfgParams *ConfigParams,
isPlus bool,
isResolverConfigured bool,
staticParams *StaticConfigParams,
isWildcardEnabled bool,
bundleValidator bundleValidator,
) *virtualServerConfigurator {
if bundleValidator == nil {
bundleValidator = newInternalBundleValidator(staticParams.AppProtectBundlePath)
}
return &virtualServerConfigurator{
cfgParams: cfgParams,
isPlus: isPlus,
isWildcardEnabled: isWildcardEnabled,
isResolverConfigured: isResolverConfigured,
isTLSPassthrough: staticParams.TLSPassthrough,
enableSnippets: staticParams.EnableSnippets,
warnings: make(map[runtime.Object][]string),
spiffeCerts: staticParams.NginxServiceMesh,
enableInternalRoutes: staticParams.EnableInternalRoutes,
oidcPolCfg: &oidcPolicyCfg{},
isIPV6Disabled: staticParams.DisableIPV6,
DynamicSSLReloadEnabled: staticParams.DynamicSSLReload,
StaticSSLPath: staticParams.StaticSSLPath,
DynamicWeightChangesReload: staticParams.DynamicWeightChangesReload,
bundleValidator: bundleValidator,
}
}
func (vsc *virtualServerConfigurator) generateEndpointsForUpstream(
owner runtime.Object,
namespace string,
upstream conf_v1.Upstream,
virtualServerEx *VirtualServerEx,
) []string {
endpointsKey := GenerateEndpointsKey(namespace, upstream.Service, upstream.Subselector, upstream.Port)
externalNameSvcKey := GenerateExternalNameSvcKey(namespace, upstream.Service)
endpoints := virtualServerEx.Endpoints[endpointsKey]
if !vsc.isPlus && len(endpoints) == 0 {
return []string{nginx502Server}
}
_, isExternalNameSvc := virtualServerEx.ExternalNameSvcs[externalNameSvcKey]
if isExternalNameSvc && !vsc.isResolverConfigured {
msgFmt := "Type ExternalName service %v in upstream %v will be ignored. To use ExternaName services, a resolver must be configured in the ConfigMap"
vsc.addWarningf(owner, msgFmt, upstream.Service, upstream.Name)
endpoints = []string{}
}
return endpoints
}
func (vsc *virtualServerConfigurator) generateBackupEndpointsForUpstream(
owner runtime.Object,
namespace string,
upstream conf_v1.Upstream,
virtualServerEx *VirtualServerEx,
) []string {
if upstream.Backup == "" || upstream.BackupPort == nil {
return []string{}
}
externalNameSvcKey := GenerateExternalNameSvcKey(namespace, upstream.Backup)
_, isExternalNameSvc := virtualServerEx.ExternalNameSvcs[externalNameSvcKey]
if isExternalNameSvc && !vsc.isResolverConfigured {
msgFmt := "Type ExternalName service %v in upstream %v will be ignored. To use ExternaName services, a resolver must be configured in the ConfigMap"
vsc.addWarningf(owner, msgFmt, upstream.Backup, upstream.Name)
return []string{}
}
backupEndpointsKey := GenerateEndpointsKey(namespace, upstream.Backup, upstream.Subselector, *upstream.BackupPort)
backupEndpoints := virtualServerEx.Endpoints[backupEndpointsKey]
if len(backupEndpoints) == 0 {
return []string{}
}
return backupEndpoints
}
// GenerateVirtualServerConfig generates a full configuration for a VirtualServer
func (vsc *virtualServerConfigurator) GenerateVirtualServerConfig(
vsEx *VirtualServerEx,
apResources *appProtectResourcesForVS,
dosResources map[string]*appProtectDosResource,
) (version2.VirtualServerConfig, Warnings) {
vsc.clearWarnings()
useCustomListeners := false
if vsEx.VirtualServer.Spec.Listener != nil {
useCustomListeners = true
}
sslConfig := vsc.generateSSLConfig(vsEx.VirtualServer, vsEx.VirtualServer.Spec.TLS, vsEx.VirtualServer.Namespace, vsEx.SecretRefs, vsc.cfgParams)
tlsRedirectConfig := generateTLSRedirectConfig(vsEx.VirtualServer.Spec.TLS)
policyOpts := policyOptions{
tls: sslConfig != nil,
secretRefs: vsEx.SecretRefs,
apResources: apResources,
}
ownerDetails := policyOwnerDetails{
owner: vsEx.VirtualServer,
ownerNamespace: vsEx.VirtualServer.Namespace,
vsNamespace: vsEx.VirtualServer.Namespace,
vsName: vsEx.VirtualServer.Name,
}
policiesCfg := vsc.generatePolicies(ownerDetails, vsEx.VirtualServer.Spec.Policies, vsEx.Policies, specContext, policyOpts)
if policiesCfg.JWKSAuthEnabled {
jwtAuthKey := policiesCfg.JWTAuth.Key
policiesCfg.JWTAuthList = make(map[string]*version2.JWTAuth)
policiesCfg.JWTAuthList[jwtAuthKey] = policiesCfg.JWTAuth
}
if policiesCfg.APIKeyEnabled {
apiMapName := policiesCfg.APIKey.MapName
policiesCfg.APIKeyClientMap = make(map[string][]apiKeyClient)
policiesCfg.APIKeyClientMap[apiMapName] = policiesCfg.APIKeyClients
}
dosCfg := generateDosCfg(dosResources[""])
// enabledInternalRoutes controls if a virtual server is configured as an internal route.
enabledInternalRoutes := vsEx.VirtualServer.Spec.InternalRoute
if vsEx.VirtualServer.Spec.InternalRoute && !vsc.enableInternalRoutes {
vsc.addWarningf(vsEx.VirtualServer, "Internal Route cannot be configured for virtual server %s. Internal Routes can be enabled by setting the enable-internal-routes flag", vsEx.VirtualServer.Name)
enabledInternalRoutes = false
}
// crUpstreams maps an UpstreamName to its conf_v1.Upstream as they are generated
// necessary for generateLocation to know what Upstream each Location references
crUpstreams := make(map[string]conf_v1.Upstream)
virtualServerUpstreamNamer := NewUpstreamNamerForVirtualServer(vsEx.VirtualServer)
var upstreams []version2.Upstream
var statusMatches []version2.StatusMatch
var healthChecks []version2.HealthCheck
var limitReqZones []version2.LimitReqZone
limitReqZones = append(limitReqZones, policiesCfg.LimitReqZones...)
// generate upstreams for VirtualServer
for _, u := range vsEx.VirtualServer.Spec.Upstreams {
if (sslConfig == nil || !vsc.cfgParams.HTTP2) && isGRPC(u.Type) {
vsc.addWarningf(vsEx.VirtualServer, "gRPC cannot be configured for upstream %s. gRPC requires enabled HTTP/2 and TLS termination.", u.Name)
}
upstreamName := virtualServerUpstreamNamer.GetNameForUpstream(u.Name)
upstreamNamespace := vsEx.VirtualServer.Namespace
endpoints := vsc.generateEndpointsForUpstream(vsEx.VirtualServer, upstreamNamespace, u, vsEx)
backupEndpoints := vsc.generateBackupEndpointsForUpstream(vsEx.VirtualServer, upstreamNamespace, u, vsEx)
// isExternalNameSvc is always false for OSS
_, isExternalNameSvc := vsEx.ExternalNameSvcs[GenerateExternalNameSvcKey(upstreamNamespace, u.Service)]
ups := vsc.generateUpstream(vsEx.VirtualServer, upstreamName, u, isExternalNameSvc, endpoints, backupEndpoints)
upstreams = append(upstreams, ups)
u.TLS.Enable = isTLSEnabled(u, vsc.spiffeCerts, vsEx.VirtualServer.Spec.InternalRoute)
crUpstreams[upstreamName] = u
if hc := generateHealthCheck(u, upstreamName, vsc.cfgParams); hc != nil {
healthChecks = append(healthChecks, *hc)
if u.HealthCheck.StatusMatch != "" {
statusMatches = append(
statusMatches,
generateUpstreamStatusMatch(upstreamName, u.HealthCheck.StatusMatch),
)
}
}
}
// generate upstreams for each VirtualServerRoute
for _, vsr := range vsEx.VirtualServerRoutes {
upstreamNamer := NewUpstreamNamerForVirtualServerRoute(vsEx.VirtualServer, vsr)
for _, u := range vsr.Spec.Upstreams {
if (sslConfig == nil || !vsc.cfgParams.HTTP2) && isGRPC(u.Type) {
vsc.addWarningf(vsr, "gRPC cannot be configured for upstream %s. gRPC requires enabled HTTP/2 and TLS termination", u.Name)
}
upstreamName := upstreamNamer.GetNameForUpstream(u.Name)
upstreamNamespace := vsr.Namespace
endpoints := vsc.generateEndpointsForUpstream(vsr, upstreamNamespace, u, vsEx)
backup := vsc.generateBackupEndpointsForUpstream(vsEx.VirtualServer, upstreamNamespace, u, vsEx)
// isExternalNameSvc is always false for OSS
_, isExternalNameSvc := vsEx.ExternalNameSvcs[GenerateExternalNameSvcKey(upstreamNamespace, u.Service)]
ups := vsc.generateUpstream(vsr, upstreamName, u, isExternalNameSvc, endpoints, backup)
upstreams = append(upstreams, ups)
u.TLS.Enable = isTLSEnabled(u, vsc.spiffeCerts, vsEx.VirtualServer.Spec.InternalRoute)
crUpstreams[upstreamName] = u
if hc := generateHealthCheck(u, upstreamName, vsc.cfgParams); hc != nil {
healthChecks = append(healthChecks, *hc)
if u.HealthCheck.StatusMatch != "" {
statusMatches = append(
statusMatches,
generateUpstreamStatusMatch(upstreamName, u.HealthCheck.StatusMatch),
)
}
}
}
}
var locations []version2.Location
var internalRedirectLocations []version2.InternalRedirectLocation
var returnLocations []version2.ReturnLocation
var splitClients []version2.SplitClient
var maps []version2.Map
var errorPageLocations []version2.ErrorPageLocation
var keyValZones []version2.KeyValZone
var keyVals []version2.KeyVal
var twoWaySplitClients []version2.TwoWaySplitClients
vsrErrorPagesFromVs := make(map[string][]conf_v1.ErrorPage)
vsrErrorPagesRouteIndex := make(map[string]int)
vsrLocationSnippetsFromVs := make(map[string]string)
vsrPoliciesFromVs := make(map[string][]conf_v1.PolicyReference)
isVSR := false
matchesRoutes := 0
VariableNamer := NewVSVariableNamer(vsEx.VirtualServer)
// generates config for VirtualServer routes
for _, r := range vsEx.VirtualServer.Spec.Routes {
errorPages := errorPageDetails{
pages: r.ErrorPages,
index: len(errorPageLocations),
owner: vsEx.VirtualServer,
}
errorPageLocations = append(errorPageLocations, generateErrorPageLocations(errorPages.index, errorPages.pages)...)
// ignore routes that reference VirtualServerRoute
if r.Route != "" {
name := r.Route
if !strings.Contains(name, "/") {
name = fmt.Sprintf("%v/%v", vsEx.VirtualServer.Namespace, r.Route)
}
// store route location snippet for the referenced VirtualServerRoute in case they don't define their own
if r.LocationSnippets != "" {
vsrLocationSnippetsFromVs[name] = r.LocationSnippets
}
// store route error pages and route index for the referenced VirtualServerRoute in case they don't define their own
if len(r.ErrorPages) > 0 {
vsrErrorPagesFromVs[name] = errorPages.pages
vsrErrorPagesRouteIndex[name] = errorPages.index
}
// store route policies for the referenced VirtualServerRoute in case they don't define their own
if len(r.Policies) > 0 {
vsrPoliciesFromVs[name] = r.Policies
}
continue
}
vsLocSnippets := r.LocationSnippets
ownerDetails := policyOwnerDetails{
owner: vsEx.VirtualServer,
ownerNamespace: vsEx.VirtualServer.Namespace,
vsNamespace: vsEx.VirtualServer.Namespace,
vsName: vsEx.VirtualServer.Name,
}
routePoliciesCfg := vsc.generatePolicies(ownerDetails, r.Policies, vsEx.Policies, routeContext, policyOpts)
if policiesCfg.OIDC {
routePoliciesCfg.OIDC = policiesCfg.OIDC
}
if routePoliciesCfg.JWKSAuthEnabled {
policiesCfg.JWKSAuthEnabled = routePoliciesCfg.JWKSAuthEnabled
if policiesCfg.JWTAuthList == nil {
policiesCfg.JWTAuthList = make(map[string]*version2.JWTAuth)
}
jwtAuthKey := routePoliciesCfg.JWTAuth.Key
if _, exists := policiesCfg.JWTAuthList[jwtAuthKey]; !exists {
policiesCfg.JWTAuthList[jwtAuthKey] = routePoliciesCfg.JWTAuth
}
}
if routePoliciesCfg.APIKeyEnabled {
policiesCfg.APIKeyEnabled = routePoliciesCfg.APIKeyEnabled
apiMapName := routePoliciesCfg.APIKey.MapName
if policiesCfg.APIKeyClientMap == nil {
policiesCfg.APIKeyClientMap = make(map[string][]apiKeyClient)
}
if _, exists := policiesCfg.APIKeyClientMap[apiMapName]; !exists {
policiesCfg.APIKeyClientMap[apiMapName] = routePoliciesCfg.APIKeyClients
}
}
limitReqZones = append(limitReqZones, routePoliciesCfg.LimitReqZones...)
dosRouteCfg := generateDosCfg(dosResources[r.Path])
if len(r.Matches) > 0 {
cfg := generateMatchesConfig(
r,
virtualServerUpstreamNamer,
crUpstreams,
VariableNamer,
matchesRoutes,
len(splitClients),
vsc.cfgParams,
errorPages,
vsLocSnippets,
vsc.enableSnippets,
len(returnLocations),
isVSR,
"", "",
vsc.warnings,
vsc.DynamicWeightChangesReload,
)
addPoliciesCfgToLocations(routePoliciesCfg, cfg.Locations)
addDosConfigToLocations(dosRouteCfg, cfg.Locations)
maps = append(maps, cfg.Maps...)
locations = append(locations, cfg.Locations...)
internalRedirectLocations = append(internalRedirectLocations, cfg.InternalRedirectLocation)
returnLocations = append(returnLocations, cfg.ReturnLocations...)
splitClients = append(splitClients, cfg.SplitClients...)
keyValZones = append(keyValZones, cfg.KeyValZones...)
keyVals = append(keyVals, cfg.KeyVals...)
twoWaySplitClients = append(twoWaySplitClients, cfg.TwoWaySplitClients...)
matchesRoutes++
} else if len(r.Splits) > 0 {
cfg := generateDefaultSplitsConfig(r, virtualServerUpstreamNamer, crUpstreams, VariableNamer, len(splitClients),
vsc.cfgParams, errorPages, r.Path, vsLocSnippets, vsc.enableSnippets, len(returnLocations), isVSR, "", "", vsc.warnings, vsc.DynamicWeightChangesReload)
addPoliciesCfgToLocations(routePoliciesCfg, cfg.Locations)
addDosConfigToLocations(dosRouteCfg, cfg.Locations)
splitClients = append(splitClients, cfg.SplitClients...)
locations = append(locations, cfg.Locations...)
internalRedirectLocations = append(internalRedirectLocations, cfg.InternalRedirectLocation)
returnLocations = append(returnLocations, cfg.ReturnLocations...)
maps = append(maps, cfg.Maps...)
keyValZones = append(keyValZones, cfg.KeyValZones...)
keyVals = append(keyVals, cfg.KeyVals...)
twoWaySplitClients = append(twoWaySplitClients, cfg.TwoWaySplitClients...)
} else {
upstreamName := virtualServerUpstreamNamer.GetNameForUpstreamFromAction(r.Action)
upstream := crUpstreams[upstreamName]
proxySSLName := generateProxySSLName(upstream.Service, vsEx.VirtualServer.Namespace)
loc, returnLoc := generateLocation(r.Path, upstreamName, upstream, r.Action, vsc.cfgParams, errorPages, false,
proxySSLName, r.Path, vsLocSnippets, vsc.enableSnippets, len(returnLocations), isVSR, "", "", vsc.warnings)
addPoliciesCfgToLocation(routePoliciesCfg, &loc)
loc.Dos = dosRouteCfg
locations = append(locations, loc)
if returnLoc != nil {
returnLocations = append(returnLocations, *returnLoc)
}
}
}
// generate config for subroutes of each VirtualServerRoute
for _, vsr := range vsEx.VirtualServerRoutes {
isVSR := true
upstreamNamer := NewUpstreamNamerForVirtualServerRoute(vsEx.VirtualServer, vsr)
for _, r := range vsr.Spec.Subroutes {
errorPages := errorPageDetails{
pages: r.ErrorPages,
index: len(errorPageLocations),
owner: vsr,
}
errorPageLocations = append(errorPageLocations, generateErrorPageLocations(errorPages.index, errorPages.pages)...)
vsrNamespaceName := fmt.Sprintf("%v/%v", vsr.Namespace, vsr.Name)
// use the VirtualServer error pages if the route does not define any
if r.ErrorPages == nil {
if vsErrorPages, ok := vsrErrorPagesFromVs[vsrNamespaceName]; ok {
errorPages.pages = vsErrorPages
errorPages.index = vsrErrorPagesRouteIndex[vsrNamespaceName]
}
}
locSnippets := r.LocationSnippets
// use the VirtualServer location snippet if the route does not define any
if r.LocationSnippets == "" {
locSnippets = vsrLocationSnippetsFromVs[vsrNamespaceName]
}
var ownerDetails policyOwnerDetails
var policyRefs []conf_v1.PolicyReference
var context string
if len(r.Policies) == 0 {
// use the VirtualServer route policies if the route does not define any
ownerDetails = policyOwnerDetails{
owner: vsEx.VirtualServer,
ownerNamespace: vsEx.VirtualServer.Namespace,
vsNamespace: vsEx.VirtualServer.Namespace,
vsName: vsEx.VirtualServer.Name,
}
policyRefs = vsrPoliciesFromVs[vsrNamespaceName]
context = routeContext
} else {
ownerDetails = policyOwnerDetails{
owner: vsr,
ownerNamespace: vsr.Namespace,
vsNamespace: vsEx.VirtualServer.Namespace,
vsName: vsEx.VirtualServer.Name,
}
policyRefs = r.Policies
context = subRouteContext
}
routePoliciesCfg := vsc.generatePolicies(ownerDetails, policyRefs, vsEx.Policies, context, policyOpts)
if policiesCfg.OIDC {
routePoliciesCfg.OIDC = policiesCfg.OIDC
}
if routePoliciesCfg.JWKSAuthEnabled {
policiesCfg.JWKSAuthEnabled = routePoliciesCfg.JWKSAuthEnabled
if policiesCfg.JWTAuthList == nil {
policiesCfg.JWTAuthList = make(map[string]*version2.JWTAuth)
}
jwtAuthKey := routePoliciesCfg.JWTAuth.Key
if _, exists := policiesCfg.JWTAuthList[jwtAuthKey]; !exists {
policiesCfg.JWTAuthList[jwtAuthKey] = routePoliciesCfg.JWTAuth
}
}
if routePoliciesCfg.APIKeyEnabled {
policiesCfg.APIKeyEnabled = routePoliciesCfg.APIKeyEnabled
apiMapName := routePoliciesCfg.APIKey.MapName
if policiesCfg.APIKeyClientMap == nil {
policiesCfg.APIKeyClientMap = make(map[string][]apiKeyClient)
}
if _, exists := policiesCfg.APIKeyClientMap[apiMapName]; !exists {
policiesCfg.APIKeyClientMap[apiMapName] = routePoliciesCfg.APIKeyClients
}
}
limitReqZones = append(limitReqZones, routePoliciesCfg.LimitReqZones...)
dosRouteCfg := generateDosCfg(dosResources[r.Path])
if len(r.Matches) > 0 {
cfg := generateMatchesConfig(
r,
upstreamNamer,
crUpstreams,
VariableNamer,
matchesRoutes,
len(splitClients),
vsc.cfgParams,
errorPages,
locSnippets,
vsc.enableSnippets,
len(returnLocations),
isVSR,
vsr.Name,
vsr.Namespace,
vsc.warnings,
vsc.DynamicWeightChangesReload,
)
addPoliciesCfgToLocations(routePoliciesCfg, cfg.Locations)
addDosConfigToLocations(dosRouteCfg, cfg.Locations)
maps = append(maps, cfg.Maps...)
locations = append(locations, cfg.Locations...)
internalRedirectLocations = append(internalRedirectLocations, cfg.InternalRedirectLocation)
returnLocations = append(returnLocations, cfg.ReturnLocations...)
splitClients = append(splitClients, cfg.SplitClients...)
keyValZones = append(keyValZones, cfg.KeyValZones...)
keyVals = append(keyVals, cfg.KeyVals...)
twoWaySplitClients = append(twoWaySplitClients, cfg.TwoWaySplitClients...)
matchesRoutes++
} else if len(r.Splits) > 0 {
cfg := generateDefaultSplitsConfig(r, upstreamNamer, crUpstreams, VariableNamer, len(splitClients), vsc.cfgParams,
errorPages, r.Path, locSnippets, vsc.enableSnippets, len(returnLocations), isVSR, vsr.Name, vsr.Namespace, vsc.warnings, vsc.DynamicWeightChangesReload)
addPoliciesCfgToLocations(routePoliciesCfg, cfg.Locations)
addDosConfigToLocations(dosRouteCfg, cfg.Locations)
splitClients = append(splitClients, cfg.SplitClients...)
locations = append(locations, cfg.Locations...)
internalRedirectLocations = append(internalRedirectLocations, cfg.InternalRedirectLocation)
returnLocations = append(returnLocations, cfg.ReturnLocations...)
keyValZones = append(keyValZones, cfg.KeyValZones...)
keyVals = append(keyVals, cfg.KeyVals...)
twoWaySplitClients = append(twoWaySplitClients, cfg.TwoWaySplitClients...)
maps = append(maps, cfg.Maps...)
} else {
upstreamName := upstreamNamer.GetNameForUpstreamFromAction(r.Action)
upstream := crUpstreams[upstreamName]
proxySSLName := generateProxySSLName(upstream.Service, vsr.Namespace)
loc, returnLoc := generateLocation(r.Path, upstreamName, upstream, r.Action, vsc.cfgParams, errorPages, false,
proxySSLName, r.Path, locSnippets, vsc.enableSnippets, len(returnLocations), isVSR, vsr.Name, vsr.Namespace, vsc.warnings)
addPoliciesCfgToLocation(routePoliciesCfg, &loc)
loc.Dos = dosRouteCfg
locations = append(locations, loc)
if returnLoc != nil {
returnLocations = append(returnLocations, *returnLoc)
}
}
}
}
for mapName, apiKeyClients := range policiesCfg.APIKeyClientMap {
maps = append(maps, *generateAPIKeyClientMap(mapName, apiKeyClients))
}
httpSnippets := generateSnippets(vsc.enableSnippets, vsEx.VirtualServer.Spec.HTTPSnippets, []string{})
serverSnippets := generateSnippets(
vsc.enableSnippets,
vsEx.VirtualServer.Spec.ServerSnippets,
vsc.cfgParams.ServerSnippets,
)
sort.Slice(upstreams, func(i, j int) bool {
return upstreams[i].Name < upstreams[j].Name
})
vsCfg := version2.VirtualServerConfig{
Upstreams: upstreams,
SplitClients: splitClients,
Maps: maps,
StatusMatches: statusMatches,
LimitReqZones: removeDuplicateLimitReqZones(limitReqZones),
HTTPSnippets: httpSnippets,
Server: version2.Server{
ServerName: vsEx.VirtualServer.Spec.Host,
Gunzip: vsEx.VirtualServer.Spec.Gunzip,
StatusZone: vsEx.VirtualServer.Spec.Host,
HTTPPort: vsEx.HTTPPort,
HTTPSPort: vsEx.HTTPSPort,
CustomListeners: useCustomListeners,
ProxyProtocol: vsc.cfgParams.ProxyProtocol,
SSL: sslConfig,
ServerTokens: vsc.cfgParams.ServerTokens,
SetRealIPFrom: vsc.cfgParams.SetRealIPFrom,
RealIPHeader: vsc.cfgParams.RealIPHeader,
RealIPRecursive: vsc.cfgParams.RealIPRecursive,
Snippets: serverSnippets,
InternalRedirectLocations: internalRedirectLocations,
Locations: locations,
ReturnLocations: returnLocations,
HealthChecks: healthChecks,
TLSRedirect: tlsRedirectConfig,
ErrorPageLocations: errorPageLocations,
TLSPassthrough: vsc.isTLSPassthrough,
Allow: policiesCfg.Allow,
Deny: policiesCfg.Deny,
LimitReqOptions: policiesCfg.LimitReqOptions,
LimitReqs: policiesCfg.LimitReqs,
JWTAuth: policiesCfg.JWTAuth,
BasicAuth: policiesCfg.BasicAuth,
JWTAuthList: policiesCfg.JWTAuthList,
JWKSAuthEnabled: policiesCfg.JWKSAuthEnabled,
IngressMTLS: policiesCfg.IngressMTLS,
EgressMTLS: policiesCfg.EgressMTLS,
APIKey: policiesCfg.APIKey,
APIKeyEnabled: policiesCfg.APIKeyEnabled,
OIDC: vsc.oidcPolCfg.oidc,
WAF: policiesCfg.WAF,
Dos: dosCfg,
PoliciesErrorReturn: policiesCfg.ErrorReturn,
VSNamespace: vsEx.VirtualServer.Namespace,
VSName: vsEx.VirtualServer.Name,
DisableIPV6: vsc.isIPV6Disabled,
},
SpiffeCerts: enabledInternalRoutes,
SpiffeClientCerts: vsc.spiffeCerts && !enabledInternalRoutes,
DynamicSSLReloadEnabled: vsc.DynamicSSLReloadEnabled,
StaticSSLPath: vsc.StaticSSLPath,
KeyValZones: keyValZones,
KeyVals: keyVals,
TwoWaySplitClients: twoWaySplitClients,
}
return vsCfg, vsc.warnings
}
type policiesCfg struct {
Allow []string
Deny []string
LimitReqOptions version2.LimitReqOptions
LimitReqZones []version2.LimitReqZone
LimitReqs []version2.LimitReq
JWTAuth *version2.JWTAuth
JWTAuthList map[string]*version2.JWTAuth
JWKSAuthEnabled bool
BasicAuth *version2.BasicAuth
IngressMTLS *version2.IngressMTLS
EgressMTLS *version2.EgressMTLS
OIDC bool
APIKeyEnabled bool
APIKey *version2.APIKey
APIKeyClients []apiKeyClient
APIKeyClientMap map[string][]apiKeyClient
WAF *version2.WAF
ErrorReturn *version2.Return
BundleValidator bundleValidator
}
type bundleValidator interface {
// validate returns the full path to the bundle and an error if the file is not accessible
validate(string) (string, error)
}
type internalBundleValidator struct {
bundlePath string
}
type apiKeyClient struct {
ClientID string
HashedKey string
}
func (i internalBundleValidator) validate(bundle string) (string, error) {
bundle = path.Join(i.bundlePath, bundle)
_, err := os.Stat(bundle)
return bundle, err
}
func newInternalBundleValidator(b string) internalBundleValidator {
return internalBundleValidator{
bundlePath: b,
}
}
func newPoliciesConfig(bv bundleValidator) *policiesCfg {
return &policiesCfg{
BundleValidator: bv,
}
}
type policyOwnerDetails struct {
owner runtime.Object
ownerNamespace string
vsNamespace string
vsName string
}
type policyOptions struct {
tls bool
secretRefs map[string]*secrets.SecretReference
apResources *appProtectResourcesForVS
}
type validationResults struct {
isError bool
warnings []string
}
func newValidationResults() *validationResults {
return &validationResults{}
}
func (v *validationResults) addWarningf(msgFmt string, args ...interface{}) {
v.warnings = append(v.warnings, fmt.Sprintf(msgFmt, args...))
}
func (p *policiesCfg) addAccessControlConfig(accessControl *conf_v1.AccessControl) *validationResults {
res := newValidationResults()
p.Allow = append(p.Allow, accessControl.Allow...)
p.Deny = append(p.Deny, accessControl.Deny...)
if len(p.Allow) > 0 && len(p.Deny) > 0 {
res.addWarningf(
"AccessControl policy (or policies) with deny rules is overridden by policy (or policies) with allow rules",
)
}
return res
}
func (p *policiesCfg) addRateLimitConfig(
rateLimit *conf_v1.RateLimit,
polKey string,
polNamespace string,
polName string,
vsNamespace string,
vsName string,
podReplicas int,
) *validationResults {
res := newValidationResults()
rlZoneName := fmt.Sprintf("pol_rl_%v_%v_%v_%v", polNamespace, polName, vsNamespace, vsName)
p.LimitReqs = append(p.LimitReqs, generateLimitReq(rlZoneName, rateLimit))
p.LimitReqZones = append(p.LimitReqZones, generateLimitReqZone(rlZoneName, rateLimit, podReplicas))
if len(p.LimitReqs) == 1 {
p.LimitReqOptions = generateLimitReqOptions(rateLimit)
} else {
curOptions := generateLimitReqOptions(rateLimit)
if curOptions.DryRun != p.LimitReqOptions.DryRun {
res.addWarningf("RateLimit policy %s with limit request option dryRun='%v' is overridden to dryRun='%v' by the first policy reference in this context", polKey, curOptions.DryRun, p.LimitReqOptions.DryRun)
}
if curOptions.LogLevel != p.LimitReqOptions.LogLevel {
res.addWarningf("RateLimit policy %s with limit request option logLevel='%v' is overridden to logLevel='%v' by the first policy reference in this context", polKey, curOptions.LogLevel, p.LimitReqOptions.LogLevel)
}
if curOptions.RejectCode != p.LimitReqOptions.RejectCode {