mirror of
https://github.com/pomerium/pomerium.git
synced 2025-08-03 08:50:42 +02:00
config: support multiple destination addresses (#1789)
* config: support multiple destination addresses * use constructor for string slice * add docs * add test for multiple destinations * fix name
This commit is contained in:
Caleb Doxsey
GitHub
parent
c6b6141d12
commit
a4c7381eba
22 changed files with 556 additions and 191 deletions
|
|
@ -13,12 +13,35 @@ import (
|
|||
envoy_extensions_transport_sockets_tls_v3 "github.com/envoyproxy/go-control-plane/envoy/extensions/transport_sockets/tls/v3"
|
||||
envoy_type_matcher_v3 "github.com/envoyproxy/go-control-plane/envoy/type/matcher/v3"
|
||||
"github.com/golang/protobuf/ptypes"
|
||||
"github.com/martinlindhe/base36"
|
||||
"google.golang.org/protobuf/types/known/structpb"
|
||||
|
||||
"github.com/pomerium/pomerium/config"
|
||||
"github.com/pomerium/pomerium/internal/log"
|
||||
"github.com/pomerium/pomerium/internal/urlutil"
|
||||
"github.com/pomerium/pomerium/pkg/cryptutil"
|
||||
)
|
||||
|
||||
// An Endpoint is a URL with its corresponding Transport Socket.
|
||||
type Endpoint struct {
|
||||
url *url.URL
|
||||
transportSocket *envoy_config_core_v3.TransportSocket
|
||||
}
|
||||
|
||||
// NewEndpoint creates a new Endpoint.
|
||||
func NewEndpoint(u *url.URL, ts *envoy_config_core_v3.TransportSocket) Endpoint {
|
||||
return Endpoint{url: u, transportSocket: ts}
|
||||
}
|
||||
|
||||
// TransportSocketName return the name for this endpoint.
|
||||
func (e Endpoint) TransportSocketName() string {
|
||||
if e.transportSocket == nil {
|
||||
return ""
|
||||
}
|
||||
h := cryptutil.HashProto(e.transportSocket)
|
||||
return "ts-" + base36.EncodeBytes(h)
|
||||
}
|
||||
|
||||
func (srv *Server) buildClusters(options *config.Options) []*envoy_config_cluster_v3.Cluster {
|
||||
grpcURL := &url.URL{
|
||||
Scheme: "http",
|
||||
|
|
@ -43,7 +66,7 @@ func (srv *Server) buildClusters(options *config.Options) []*envoy_config_cluste
|
|||
if config.IsProxy(options.Services) {
|
||||
for i := range options.Policies {
|
||||
policy := options.Policies[i]
|
||||
if policy.Destination != nil {
|
||||
if len(policy.Destinations) > 0 {
|
||||
clusters = append(clusters, srv.buildPolicyCluster(options, &policy))
|
||||
}
|
||||
}
|
||||
|
|
@ -52,22 +75,29 @@ func (srv *Server) buildClusters(options *config.Options) []*envoy_config_cluste
|
|||
return clusters
|
||||
}
|
||||
|
||||
func (srv *Server) buildInternalCluster(options *config.Options, name string, endpoint *url.URL, forceHTTP2 bool) *envoy_config_cluster_v3.Cluster {
|
||||
func (srv *Server) buildInternalCluster(options *config.Options, name string, dst *url.URL, forceHTTP2 bool) *envoy_config_cluster_v3.Cluster {
|
||||
endpoints := []Endpoint{NewEndpoint(dst, srv.buildInternalTransportSocket(options, dst))}
|
||||
dnsLookupFamily := config.GetEnvoyDNSLookupFamily(options.DNSLookupFamily)
|
||||
return buildCluster(name, endpoint, srv.buildInternalTransportSocket(options, endpoint), forceHTTP2,
|
||||
dnsLookupFamily,
|
||||
nil)
|
||||
return buildCluster(name, endpoints, forceHTTP2, dnsLookupFamily, nil)
|
||||
}
|
||||
|
||||
func (srv *Server) buildPolicyCluster(options *config.Options, policy *config.Policy) *envoy_config_cluster_v3.Cluster {
|
||||
name := getPolicyName(policy)
|
||||
endpoints := srv.buildPolicyEndpoints(policy)
|
||||
dnsLookupFamily := config.GetEnvoyDNSLookupFamily(options.DNSLookupFamily)
|
||||
if policy.EnableGoogleCloudServerlessAuthentication {
|
||||
dnsLookupFamily = envoy_config_cluster_v3.Cluster_V4_ONLY
|
||||
}
|
||||
return buildCluster(name, policy.Destination, srv.buildPolicyTransportSocket(policy), false,
|
||||
dnsLookupFamily,
|
||||
(*envoy_config_cluster_v3.OutlierDetection)(policy.OutlierDetection))
|
||||
outlierDetection := (*envoy_config_cluster_v3.OutlierDetection)(policy.OutlierDetection)
|
||||
return buildCluster(name, endpoints, false, dnsLookupFamily, outlierDetection)
|
||||
}
|
||||
|
||||
func (srv *Server) buildPolicyEndpoints(policy *config.Policy) []Endpoint {
|
||||
var endpoints []Endpoint
|
||||
for _, dst := range policy.Destinations {
|
||||
endpoints = append(endpoints, NewEndpoint(dst, srv.buildPolicyTransportSocket(policy, dst)))
|
||||
}
|
||||
return endpoints
|
||||
}
|
||||
|
||||
func (srv *Server) buildInternalTransportSocket(options *config.Options, endpoint *url.URL) *envoy_config_core_v3.TransportSocket {
|
||||
|
|
@ -119,12 +149,12 @@ func (srv *Server) buildInternalTransportSocket(options *config.Options, endpoin
|
|||
}
|
||||
}
|
||||
|
||||
func (srv *Server) buildPolicyTransportSocket(policy *config.Policy) *envoy_config_core_v3.TransportSocket {
|
||||
if policy.Destination == nil || policy.Destination.Scheme != "https" {
|
||||
func (srv *Server) buildPolicyTransportSocket(policy *config.Policy, dst *url.URL) *envoy_config_core_v3.TransportSocket {
|
||||
if dst == nil || dst.Scheme != "https" {
|
||||
return nil
|
||||
}
|
||||
|
||||
sni := policy.Destination.Hostname()
|
||||
sni := dst.Hostname()
|
||||
if policy.TLSServerName != "" {
|
||||
sni = policy.TLSServerName
|
||||
}
|
||||
|
|
@ -140,7 +170,7 @@ func (srv *Server) buildPolicyTransportSocket(policy *config.Policy) *envoy_conf
|
|||
},
|
||||
AlpnProtocols: []string{"http/1.1"},
|
||||
ValidationContextType: &envoy_extensions_transport_sockets_tls_v3.CommonTlsContext_ValidationContext{
|
||||
ValidationContext: srv.buildPolicyValidationContext(policy),
|
||||
ValidationContext: srv.buildPolicyValidationContext(policy, dst),
|
||||
},
|
||||
},
|
||||
Sni: sni,
|
||||
|
|
@ -159,12 +189,12 @@ func (srv *Server) buildPolicyTransportSocket(policy *config.Policy) *envoy_conf
|
|||
}
|
||||
}
|
||||
|
||||
func (srv *Server) buildPolicyValidationContext(policy *config.Policy) *envoy_extensions_transport_sockets_tls_v3.CertificateValidationContext {
|
||||
if policy.Destination == nil {
|
||||
func (srv *Server) buildPolicyValidationContext(policy *config.Policy, dst *url.URL) *envoy_extensions_transport_sockets_tls_v3.CertificateValidationContext {
|
||||
if dst == nil {
|
||||
return nil
|
||||
}
|
||||
|
||||
sni := policy.Destination.Hostname()
|
||||
sni := dst.Hostname()
|
||||
if policy.TLSServerName != "" {
|
||||
sni = policy.TLSServerName
|
||||
}
|
||||
|
|
@ -201,47 +231,29 @@ func (srv *Server) buildPolicyValidationContext(policy *config.Policy) *envoy_ex
|
|||
|
||||
func buildCluster(
|
||||
name string,
|
||||
endpoint *url.URL,
|
||||
transportSocket *envoy_config_core_v3.TransportSocket,
|
||||
endpoints []Endpoint,
|
||||
forceHTTP2 bool,
|
||||
dnsLookupFamily envoy_config_cluster_v3.Cluster_DnsLookupFamily,
|
||||
outlierDetection *envoy_config_cluster_v3.OutlierDetection,
|
||||
) *envoy_config_cluster_v3.Cluster {
|
||||
if endpoint == nil {
|
||||
if len(endpoints) == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
defaultPort := 80
|
||||
if transportSocket != nil && transportSocket.Name == "tls" {
|
||||
defaultPort = 443
|
||||
}
|
||||
|
||||
if endpoint.Hostname() == "localhost" {
|
||||
u := new(url.URL)
|
||||
*u = *endpoint
|
||||
u.Host = strings.Replace(endpoint.Host, "localhost", "127.0.0.1", -1)
|
||||
endpoint = u
|
||||
}
|
||||
|
||||
lbEndpoints := buildLbEndpoints(endpoints)
|
||||
cluster := &envoy_config_cluster_v3.Cluster{
|
||||
Name: name,
|
||||
ConnectTimeout: ptypes.DurationProto(time.Second * 10),
|
||||
LoadAssignment: &envoy_config_endpoint_v3.ClusterLoadAssignment{
|
||||
ClusterName: name,
|
||||
Endpoints: []*envoy_config_endpoint_v3.LocalityLbEndpoints{{
|
||||
LbEndpoints: []*envoy_config_endpoint_v3.LbEndpoint{{
|
||||
HostIdentifier: &envoy_config_endpoint_v3.LbEndpoint_Endpoint{
|
||||
Endpoint: &envoy_config_endpoint_v3.Endpoint{
|
||||
Address: buildAddress(endpoint.Host, defaultPort),
|
||||
},
|
||||
},
|
||||
}},
|
||||
LbEndpoints: lbEndpoints,
|
||||
}},
|
||||
},
|
||||
RespectDnsTtl: true,
|
||||
TransportSocket: transportSocket,
|
||||
DnsLookupFamily: dnsLookupFamily,
|
||||
OutlierDetection: outlierDetection,
|
||||
RespectDnsTtl: true,
|
||||
TransportSocketMatches: buildTransportSocketMatches(endpoints),
|
||||
DnsLookupFamily: dnsLookupFamily,
|
||||
OutlierDetection: outlierDetection,
|
||||
}
|
||||
|
||||
if forceHTTP2 {
|
||||
|
|
@ -251,7 +263,13 @@ func buildCluster(
|
|||
}
|
||||
|
||||
// for IPs we use a static discovery type, otherwise we use DNS
|
||||
if net.ParseIP(urlutil.StripPort(endpoint.Host)) != nil {
|
||||
isIP := false
|
||||
for _, lbe := range lbEndpoints {
|
||||
if net.ParseIP(urlutil.StripPort(lbe.GetEndpoint().GetAddress().GetSocketAddress().GetAddress())) != nil {
|
||||
isIP = true
|
||||
}
|
||||
}
|
||||
if isIP {
|
||||
cluster.ClusterDiscoveryType = &envoy_config_cluster_v3.Cluster_Type{Type: envoy_config_cluster_v3.Cluster_STATIC}
|
||||
} else {
|
||||
cluster.ClusterDiscoveryType = &envoy_config_cluster_v3.Cluster_Type{Type: envoy_config_cluster_v3.Cluster_STRICT_DNS}
|
||||
|
|
@ -259,3 +277,70 @@ func buildCluster(
|
|||
|
||||
return cluster
|
||||
}
|
||||
|
||||
func buildLbEndpoints(endpoints []Endpoint) []*envoy_config_endpoint_v3.LbEndpoint {
|
||||
var lbes []*envoy_config_endpoint_v3.LbEndpoint
|
||||
for _, e := range endpoints {
|
||||
defaultPort := 80
|
||||
if e.transportSocket != nil && e.transportSocket.Name == "tls" {
|
||||
defaultPort = 443
|
||||
}
|
||||
|
||||
u := e.url
|
||||
if e.url.Hostname() == "localhost" {
|
||||
u = new(url.URL)
|
||||
*u = *e.url
|
||||
u.Host = strings.Replace(e.url.Host, "localhost", "127.0.0.1", -1)
|
||||
}
|
||||
|
||||
lbe := &envoy_config_endpoint_v3.LbEndpoint{
|
||||
HostIdentifier: &envoy_config_endpoint_v3.LbEndpoint_Endpoint{
|
||||
Endpoint: &envoy_config_endpoint_v3.Endpoint{
|
||||
Address: buildAddress(u.Host, defaultPort),
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
if e.transportSocket != nil {
|
||||
lbe.Metadata = &envoy_config_core_v3.Metadata{
|
||||
FilterMetadata: map[string]*structpb.Struct{
|
||||
"envoy.transport_socket_match": {
|
||||
Fields: map[string]*structpb.Value{
|
||||
e.TransportSocketName(): structpb.NewBoolValue(true),
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
}
|
||||
lbes = append(lbes, lbe)
|
||||
}
|
||||
return lbes
|
||||
}
|
||||
|
||||
func buildTransportSocketMatches(endpoints []Endpoint) []*envoy_config_cluster_v3.Cluster_TransportSocketMatch {
|
||||
var tsms []*envoy_config_cluster_v3.Cluster_TransportSocketMatch
|
||||
seen := map[string]struct{}{}
|
||||
for _, e := range endpoints {
|
||||
if e.transportSocket == nil {
|
||||
continue
|
||||
}
|
||||
|
||||
// only add unique transport sockets
|
||||
nm := e.TransportSocketName()
|
||||
if _, ok := seen[nm]; ok {
|
||||
continue
|
||||
}
|
||||
seen[nm] = struct{}{}
|
||||
|
||||
tsms = append(tsms, &envoy_config_cluster_v3.Cluster_TransportSocketMatch{
|
||||
Name: nm,
|
||||
Match: &structpb.Struct{
|
||||
Fields: map[string]*structpb.Value{
|
||||
nm: structpb.NewBoolValue(true),
|
||||
},
|
||||
},
|
||||
TransportSocket: e.transportSocket,
|
||||
})
|
||||
}
|
||||
return tsms
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue