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Replace TransparentProxy bool with ProxyMode 

This PR replaces the original boolean used to configure transparent
proxy mode. It was replaced with a string mode that can be set to:

- "": Empty string is the default for when the setting should be
defaulted from other configuration like config entries.
- "direct": Direct mode is how applications originally opted into the
mesh. Proxy listeners need to be dialed directly.
- "transparent": Transparent mode enables configuring Envoy as a
transparent proxy. Traffic must be captured and redirected to the
inbound and outbound listeners.

This PR also adds a struct for transparent proxy specific configuration.
Initially this is not stored as a pointer. Will revisit that decision
before GA.
This commit is contained in:
freddygv 2021-04-12 09:35:14 -06:00
parent fb4d07243d
commit eeccba945d
30 changed files with 838 additions and 233 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
agent/agent_endpoint_test.go
View File

@ -196,7 +196,10 @@ func TestAgent_Services_Sidecar(t *testing.T) {
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "db",
Upstreams: structs.TestUpstreams(t),
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
}
a.State.AddService(srv1, "")
@ -396,7 +399,7 @@ func TestAgent_Service(t *testing.T) {
Service: "web-sidecar-proxy",
Port: 8000,
Proxy: expectProxy.ToAPI(),
ContentHash: "fa3af167b81f6721",
ContentHash: "eb557bc310d4f8a0",
Weights: api.AgentWeights{
Passing: 1,
Warning: 1,
@ -410,7 +413,7 @@ func TestAgent_Service(t *testing.T) {
// Copy and modify
updatedResponse := *expectedResponse
updatedResponse.Port = 9999
updatedResponse.ContentHash = "c7739b50900c7483"
updatedResponse.ContentHash = "d61c11f438c7eb02"
// Simple response for non-proxy service registered in TestAgent config
expectWebResponse := &api.AgentService{

25
agent/config/builder.go
View File

@ -1691,7 +1691,8 @@ func (b *builder) serviceProxyVal(v *ServiceProxy) *structs.ConnectProxyConfig {
Upstreams: b.upstreamsVal(v.Upstreams),
MeshGateway: b.meshGatewayConfVal(v.MeshGateway),
Expose: b.exposeConfVal(v.Expose),
TransparentProxy: boolVal(v.TransparentProxy),
Mode: b.proxyModeVal(v.Mode),
TransparentProxy: b.transparentProxyConfVal(v.TransparentProxy),
}
}
@ -1743,6 +1744,28 @@ func (b *builder) exposeConfVal(v *ExposeConfig) structs.ExposeConfig {
return out
}
func (b *builder) transparentProxyConfVal(tproxyConf *TransparentProxyConfig) structs.TransparentProxyConfig {
var out structs.TransparentProxyConfig
if tproxyConf == nil {
return out
}
out.OutboundListenerPort = intVal(tproxyConf.OutboundListenerPort)
return out
}
func (b *builder) proxyModeVal(v *string) structs.ProxyMode {
if v == nil {
return structs.ProxyModeDefault
}
mode, err := structs.ValidateProxyMode(*v)
if err != nil {
b.err = multierror.Append(b.err, err)
}
return mode
}
func (b *builder) pathsVal(v []ExposePath) []structs.ExposePath {
paths := make([]structs.ExposePath, len(v))
for i, p := range v {

15
agent/config/config.go
View File

@ -461,6 +461,12 @@ type ServiceProxy struct {
// (DestinationServiceID is set) but otherwise will be ignored.
LocalServicePort *int `mapstructure:"local_service_port"`
// TransparentProxy configuration.
TransparentProxy *TransparentProxyConfig `mapstructure:"transparent_proxy"`
// Mode represents how the proxy's inbound and upstream listeners are dialed.
Mode *string `mapstructure:"mode"`
// Config is the arbitrary configuration data provided with the proxy
// registration.
Config map[string]interface{} `mapstructure:"config"`
@ -474,10 +480,6 @@ type ServiceProxy struct {
// Expose defines whether checks or paths are exposed through the proxy
Expose *ExposeConfig `mapstructure:"expose"`
// TransparentProxy toggles whether inbound and outbound traffic is being
// redirected to the proxy.
TransparentProxy *bool `mapstructure:"transparent_proxy"`
}
// Upstream represents a single upstream dependency for a service or proxy. It
@ -523,6 +525,11 @@ type MeshGatewayConfig struct {
Mode *string `mapstructure:"mode"`
}
type TransparentProxyConfig struct {
// Mesh Gateway Mode
OutboundListenerPort *int `mapstructure:"outbound_listener_port"`
}
// ExposeConfig describes HTTP paths to expose through Envoy outside of Connect.
// Users can expose individual paths and/or all HTTP/GRPC paths for checks.
type ExposeConfig struct {

95
agent/config/runtime_test.go
View File

@ -2582,7 +2582,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
}
]
},
"transparent_proxy": true,
"mode": "transparent",
"transparent_proxy": {
"outbound_listener_port": 10101
},
"upstreams": [
{
"destination_name": "db",
@ -2619,7 +2622,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
}
]
}
transparent_proxy = true
mode = "transparent"
transparent_proxy = {
outbound_listener_port = 10101
}
upstreams = [
{
destination_name = "db"
@ -2659,7 +2665,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
},
},
},
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationType: "service",
@ -2714,7 +2723,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
}
]
},
"transparent_proxy": true,
"mode": "transparent",
"transparent_proxy": {
"outbound_listener_port": 10101
},
"upstreams": [
{
"destination_name": "db",
@ -2751,7 +2763,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
}
]
}
transparent_proxy = true,
mode = "transparent"
transparent_proxy = {
outbound_listener_port = 10101
}
upstreams = [
{
destination_name = "db"
@ -2791,7 +2806,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
},
},
},
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationType: "service",
@ -3435,7 +3453,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
"mesh_gateway": {
"mode": "remote"
},
"transparent_proxy": true
"mode": "transparent",
"transparent_proxy": {
"outbound_listener_port": 10101
}
}
]
}
@ -3454,7 +3475,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
mesh_gateway {
mode = "remote"
}
transparent_proxy = true
mode = "transparent"
transparent_proxy = {
outbound_listener_port = 10101
}
}
}`},
expected: func(rt *RuntimeConfig) {
@ -3473,7 +3497,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
}
},
@ -3496,7 +3523,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
"MeshGateway": {
"Mode": "remote"
},
"TransparentProxy": true
"Mode": "transparent",
"TransparentProxy": {
"OutboundListenerPort": 10101
}
}
]
}
@ -3515,7 +3545,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
MeshGateway {
Mode = "remote"
}
TransparentProxy = true
Mode = "transparent"
TransparentProxy = {
OutboundListenerPort = 10101
}
}
}`},
expected: func(rt *RuntimeConfig) {
@ -3534,7 +3567,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
}
},
@ -3557,7 +3593,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
"mesh_gateway": {
"mode": "remote"
},
"transparent_proxy": true
"mode": "transparent",
"transparent_proxy": {
"outbound_listener_port": 10101
}
}
]
}
@ -3576,7 +3615,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
mesh_gateway {
mode = "remote"
}
transparent_proxy = true
mode = "transparent"
transparent_proxy = {
outbound_listener_port = 10101
}
}
}`},
expected: func(rt *RuntimeConfig) {
@ -3595,7 +3637,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
}
},
@ -3618,7 +3663,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
"MeshGateway": {
"Mode": "remote"
},
"TransparentProxy": true
"Mode": "transparent",
"TransparentProxy": {
"OutboundListenerPort": 10101
}
}
]
}
@ -3637,7 +3685,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
MeshGateway {
Mode = "remote"
}
TransparentProxy = true
Mode = "transparent"
TransparentProxy = {
OutboundListenerPort = 10101
}
}
}`},
expected: func(rt *RuntimeConfig) {
@ -3656,7 +3707,10 @@ func TestLoad_IntegrationWithFlags(t *testing.T) {
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
}
},
@ -5598,7 +5652,10 @@ func TestLoad_FullConfig(t *testing.T) {
},
},
},
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
Weights: &structs.Weights{
Passing: 1,

5
agent/config/testdata/full-config.hcl vendored
View File

@ -591,7 +591,10 @@ services = [
}
]
}
transparent_proxy = true
mode = "transparent"
transparent_proxy = {
outbound_listener_port = 10101
}
}
},
{

5
agent/config/testdata/full-config.json vendored
View File

@ -572,7 +572,10 @@
}
]
},
"transparent_proxy": true,
"mode": "transparent",
"transparent_proxy": {
"outbound_listener_port": 10101
},
"upstreams": [
{
"destination_name": "KPtAj2cb",

18
agent/consul/config_endpoint.go
View File

@ -355,9 +355,10 @@ func (c *ConfigEntry) ResolveServiceConfig(args *structs.ServiceConfigRequest, r
return fmt.Errorf("failed to copy global proxy-defaults: %v", err)
}
reply.ProxyConfig = mapCopy.(map[string]interface{})
reply.Mode = proxyConf.Mode
reply.TransparentProxy = proxyConf.TransparentProxy
reply.MeshGateway = proxyConf.MeshGateway
reply.Expose = proxyConf.Expose
reply.TransparentProxy = proxyConf.TransparentProxy
// Extract the global protocol from proxyConf for upstream configs.
rawProtocol := proxyConf.Config["protocol"]
@ -396,8 +397,11 @@ func (c *ConfigEntry) ResolveServiceConfig(args *structs.ServiceConfigRequest, r
}
reply.ProxyConfig["protocol"] = serviceConf.Protocol
}
if serviceConf.TransparentProxy {
reply.TransparentProxy = serviceConf.TransparentProxy
if serviceConf.TransparentProxy.OutboundListenerPort != 0 {
reply.TransparentProxy.OutboundListenerPort = serviceConf.TransparentProxy.OutboundListenerPort
}
if serviceConf.Mode != structs.ProxyModeDefault {
reply.Mode = serviceConf.Mode
}
}
@ -413,13 +417,13 @@ func (c *ConfigEntry) ResolveServiceConfig(args *structs.ServiceConfigRequest, r
var (
noUpstreamArgs = len(upstreamIDs) == 0 && len(args.Upstreams) == 0
// Check the args and the resolved value. If it was exclusively set via a config entry, then args.TransparentProxy
// will never be true because the service config request does not use the resolved value.
tproxy = args.TransparentProxy || reply.TransparentProxy
// Check the args and the resolved value. If it was exclusively set via a config entry, then args.Mode
// will never be transparent because the service config request does not use the resolved value.
tproxy = args.Mode == structs.ProxyModeTransparent || reply.Mode == structs.ProxyModeTransparent
)
// The upstreams passed as arguments to this endpoint are the upstreams explicitly defined in a proxy registration.
// If no upstreams were passed, then we should only returned the resolved config if the proxy has TransparentProxy mode enabled.
// If no upstreams were passed, then we should only returned the resolved config if the proxy in transparent mode.
// Otherwise we would return a resolved upstream config to a proxy with no configured upstreams.
if noUpstreamArgs && !tproxy {
return nil

39
agent/consul/config_endpoint_test.go
View File

@ -913,7 +913,8 @@ func TestConfigEntry_ResolveServiceConfig_TransparentProxy(t *testing.T) {
&structs.ProxyConfigEntry{
Kind: structs.ProxyDefaults,
Name: structs.ProxyConfigGlobal,
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 10101},
},
},
request: structs.ServiceConfigRequest{
@ -921,7 +922,8 @@ func TestConfigEntry_ResolveServiceConfig_TransparentProxy(t *testing.T) {
Datacenter: "dc1",
},
expect: structs.ServiceConfigResponse{
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 10101},
},
},
{
@ -930,7 +932,8 @@ func TestConfigEntry_ResolveServiceConfig_TransparentProxy(t *testing.T) {
&structs.ServiceConfigEntry{
Kind: structs.ServiceDefaults,
Name: "foo",
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 808},
},
},
request: structs.ServiceConfigRequest{
@ -938,7 +941,8 @@ func TestConfigEntry_ResolveServiceConfig_TransparentProxy(t *testing.T) {
Datacenter: "dc1",
},
expect: structs.ServiceConfigResponse{
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 808},
},
},
{
@ -947,12 +951,14 @@ func TestConfigEntry_ResolveServiceConfig_TransparentProxy(t *testing.T) {
&structs.ProxyConfigEntry{
Kind: structs.ProxyDefaults,
Name: structs.ProxyConfigGlobal,
TransparentProxy: false,
Mode: structs.ProxyModeDirect,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 10101},
},
&structs.ServiceConfigEntry{
Kind: structs.ServiceDefaults,
Name: "foo",
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 808},
},
},
request: structs.ServiceConfigRequest{
@ -960,7 +966,8 @@ func TestConfigEntry_ResolveServiceConfig_TransparentProxy(t *testing.T) {
Datacenter: "dc1",
},
expect: structs.ServiceConfigResponse{
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 808},
},
},
}
@ -1245,9 +1252,9 @@ func TestConfigEntry_ResolveServiceConfig_Upstreams(t *testing.T) {
},
},
request: structs.ServiceConfigRequest{
Name: "api",
Datacenter: "dc1",
TransparentProxy: true,
Name: "api",
Datacenter: "dc1",
Mode: structs.ProxyModeTransparent,
// Empty Upstreams/UpstreamIDs
},
@ -1291,7 +1298,8 @@ func TestConfigEntry_ResolveServiceConfig_Upstreams(t *testing.T) {
},
// TransparentProxy on the config entry but not the config request
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 10101},
},
},
request: structs.ServiceConfigRequest{
@ -1301,7 +1309,8 @@ func TestConfigEntry_ResolveServiceConfig_Upstreams(t *testing.T) {
// Empty Upstreams/UpstreamIDs
},
expect: structs.ServiceConfigResponse{
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 10101},
UpstreamIDConfigs: structs.OpaqueUpstreamConfigs{
{
Upstream: wildcard,
@ -1342,9 +1351,9 @@ func TestConfigEntry_ResolveServiceConfig_Upstreams(t *testing.T) {
},
},
request: structs.ServiceConfigRequest{
Name: "api",
Datacenter: "dc1",
TransparentProxy: false,
Name: "api",
Datacenter: "dc1",
Mode: structs.ProxyModeDirect,
// Empty Upstreams/UpstreamIDs
},

2
agent/proxycfg/snapshot.go
View File

@ -360,7 +360,7 @@ type ConfigSnapshot struct {
func (s *ConfigSnapshot) Valid() bool {
switch s.Kind {
case structs.ServiceKindConnectProxy:
if s.Proxy.TransparentProxy && !s.ConnectProxy.ClusterConfigSet {
if s.Proxy.Mode == structs.ProxyModeTransparent && !s.ConnectProxy.ClusterConfigSet {
return false
}
return s.Roots != nil &&

6
agent/proxycfg/state.go
View File

@ -305,7 +305,7 @@ func (s *state) initWatchesConnectProxy(snap *ConfigSnapshot) error {
// default the namespace to the namespace of this proxy service
currentNamespace := s.proxyID.NamespaceOrDefault()
if s.proxyCfg.TransparentProxy {
if s.proxyCfg.Mode == structs.ProxyModeTransparent {
// When in transparent proxy we will infer upstreams from intentions with this source
err := s.cache.Notify(s.ctx, cachetype.IntentionUpstreamsName, &structs.ServiceSpecificRequest{
Datacenter: s.source.Datacenter,
@ -350,8 +350,8 @@ func (s *state) initWatchesConnectProxy(snap *ConfigSnapshot) error {
if u.Datacenter != "" {
dc = u.Datacenter
}
if s.proxyCfg.TransparentProxy && (dc == "" || dc == s.source.Datacenter) {
// In TransparentProxy mode, watches for upstreams in the local DC are handled by the IntentionUpstreams watch.
if s.proxyCfg.Mode == structs.ProxyModeTransparent && (dc == "" || dc == s.source.Datacenter) {
// In transparent proxy mode, watches for upstreams in the local DC are handled by the IntentionUpstreams watch.
continue
}

4
agent/proxycfg/state_test.go
View File

@ -1541,7 +1541,7 @@ func TestState_WatchesAndUpdates(t *testing.T) {
Address: "10.0.1.1",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "api",
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
},
},
sourceDC: "dc1",
@ -1606,7 +1606,7 @@ func TestState_WatchesAndUpdates(t *testing.T) {
Address: "10.0.1.1",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "api",
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
Upstreams: structs.Upstreams{
{
CentrallyConfigured: true,

27
agent/service_manager.go
View File

@ -335,13 +335,13 @@ func makeConfigRequest(bd BaseDeps, addReq AddServiceRequest) *structs.ServiceCo
}
req := &structs.ServiceConfigRequest{
Name: name,
Datacenter: bd.RuntimeConfig.Datacenter,
QueryOptions: structs.QueryOptions{Token: addReq.token},
MeshGateway: ns.Proxy.MeshGateway,
TransparentProxy: ns.Proxy.TransparentProxy,
UpstreamIDs: upstreams,
EnterpriseMeta: ns.EnterpriseMeta,
Name: name,
Datacenter: bd.RuntimeConfig.Datacenter,
QueryOptions: structs.QueryOptions{Token: addReq.token},
MeshGateway: ns.Proxy.MeshGateway,
Mode: ns.Proxy.Mode,
UpstreamIDs: upstreams,
EnterpriseMeta: ns.EnterpriseMeta,
}
if req.QueryOptions.Token == "" {
req.QueryOptions.Token = bd.Tokens.AgentToken()
@ -377,8 +377,11 @@ func mergeServiceConfig(defaults *structs.ServiceConfigResponse, service *struct
if ns.Proxy.MeshGateway.Mode == structs.MeshGatewayModeDefault {
ns.Proxy.MeshGateway.Mode = defaults.MeshGateway.Mode
}
if !ns.Proxy.TransparentProxy {
ns.Proxy.TransparentProxy = defaults.TransparentProxy
if ns.Proxy.Mode == structs.ProxyModeDefault {
ns.Proxy.Mode = defaults.Mode
}
if ns.Proxy.TransparentProxy.OutboundListenerPort == 0 {
ns.Proxy.TransparentProxy.OutboundListenerPort = defaults.TransparentProxy.OutboundListenerPort
}
// remoteUpstreams contains synthetic Upstreams generated from central config (service-defaults.UpstreamConfigs).
@ -406,7 +409,7 @@ func mergeServiceConfig(defaults *structs.ServiceConfigResponse, service *struct
}
// localUpstreams stores the upstreams seen from the local registration so that we can merge in the synthetic entries.
// In TransparentProxy mode ns.Proxy.Upstreams will likely be empty because users do not need to define upstreams explicitly.
// In transparent proxy mode ns.Proxy.Upstreams will likely be empty because users do not need to define upstreams explicitly.
// So to store upstream-specific flags from central config, we add entries to ns.Proxy.Upstream with those values.
localUpstreams := make(map[structs.ServiceID]struct{})
@ -437,9 +440,9 @@ func mergeServiceConfig(defaults *structs.ServiceConfigResponse, service *struct
}
// Ensure upstreams present in central config are represented in the local configuration.
// This does not apply outside of TransparentProxy mode because in that situation every possible upstream already exists
// This does not apply outside of transparent mode because in that situation every possible upstream already exists
// inside of ns.Proxy.Upstreams.
if ns.Proxy.TransparentProxy {
if ns.Proxy.Mode == structs.ProxyModeTransparent {
for id, remote := range remoteUpstreams {
if _, ok := localUpstreams[id]; ok {
// Remote upstream is already present locally

95
agent/service_manager_test.go
View File

@ -929,7 +929,7 @@ func Test_mergeServiceConfig_UpstreamOverrides(t *testing.T) {
},
},
{
name: "remote upstream config expands local upstream list in tproxy mode",
name: "remote upstream config expands local upstream list in transparent mode",
args: args{
defaults: &structs.ServiceConfigResponse{
UpstreamIDConfigs: structs.OpaqueUpstreamConfigs{
@ -950,7 +950,10 @@ func Test_mergeServiceConfig_UpstreamOverrides(t *testing.T) {
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
@ -970,7 +973,10 @@ func Test_mergeServiceConfig_UpstreamOverrides(t *testing.T) {
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
TransparentProxy: true,
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
@ -993,7 +999,7 @@ func Test_mergeServiceConfig_UpstreamOverrides(t *testing.T) {
},
},
{
name: "remote upstream config not added to local upstream list outside of tproxy mode",
name: "remote upstream config not added to local upstream list outside of transparent mode",
args: args{
defaults: &structs.ServiceConfigResponse{
UpstreamIDConfigs: structs.OpaqueUpstreamConfigs{
@ -1014,7 +1020,7 @@ func Test_mergeServiceConfig_UpstreamOverrides(t *testing.T) {
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
TransparentProxy: false,
Mode: structs.ProxyModeDirect,
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
@ -1034,6 +1040,7 @@ func Test_mergeServiceConfig_UpstreamOverrides(t *testing.T) {
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeDirect,
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
@ -1175,3 +1182,81 @@ func Test_mergeServiceConfig_UpstreamOverrides(t *testing.T) {
})
}
}
func Test_mergeServiceConfig_TransparentProxy(t *testing.T) {
type args struct {
defaults *structs.ServiceConfigResponse
service *structs.NodeService
}
tests := []struct {
name string
args args
want *structs.NodeService
}{
{
name: "inherit transparent proxy settings",
args: args{
defaults: &structs.ServiceConfigResponse{
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 10101},
},
service: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeDefault,
TransparentProxy: structs.TransparentProxyConfig{},
},
},
},
want: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 10101},
},
},
},
{
name: "override transparent proxy settings",
args: args{
defaults: &structs.ServiceConfigResponse{
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 10101},
},
service: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeDirect,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 808},
},
},
},
want: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeDirect,
TransparentProxy: structs.TransparentProxyConfig{OutboundListenerPort: 808},
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := mergeServiceConfig(tt.args.defaults, tt.args.service)
require.NoError(t, err)
assert.Equal(t, tt.want, got)
})
}
}

25
agent/structs/config_entry.go
View File

@ -85,9 +85,10 @@ type ServiceConfigEntry struct {
Kind string
Name string
Protocol string
MeshGateway MeshGatewayConfig `json:",omitempty" alias:"mesh_gateway"`
Expose ExposeConfig `json:",omitempty"`
TransparentProxy bool `json:",omitempty" alias:"transparent_proxy"`
Mode ProxyMode `json:",omitempty"`
TransparentProxy TransparentProxyConfig `json:",omitempty" alias:"transparent_proxy"`
MeshGateway MeshGatewayConfig `json:",omitempty" alias:"mesh_gateway"`
Expose ExposeConfig `json:",omitempty"`
ExternalSNI string `json:",omitempty" alias:"external_sni"`
@ -223,9 +224,10 @@ type ProxyConfigEntry struct {
Kind string
Name string
Config map[string]interface{}
MeshGateway MeshGatewayConfig `json:",omitempty" alias:"mesh_gateway"`
Expose ExposeConfig `json:",omitempty"`
TransparentProxy bool `json:",omitempty" alias:"transparent_proxy"`
Mode ProxyMode `json:",omitempty"`
TransparentProxy TransparentProxyConfig `json:",omitempty" alias:"transparent_proxy"`
MeshGateway MeshGatewayConfig `json:",omitempty" alias:"mesh_gateway"`
Expose ExposeConfig `json:",omitempty"`
Meta map[string]string `json:",omitempty"`
EnterpriseMeta `hcl:",squash" mapstructure:",squash"`
@ -595,8 +597,8 @@ type ServiceConfigRequest struct {
// MeshGateway contains the mesh gateway configuration from the requesting proxy's registration
MeshGateway MeshGatewayConfig
// TransparentProxy indicates whether the requesting proxy is in transparent proxy mode
TransparentProxy bool
// Mode indicates how the requesting proxy's listeners are dialed
Mode ProxyMode
UpstreamIDs []ServiceID
@ -859,9 +861,10 @@ type ServiceConfigResponse struct {
ProxyConfig map[string]interface{}
UpstreamConfigs map[string]map[string]interface{}
UpstreamIDConfigs OpaqueUpstreamConfigs
MeshGateway MeshGatewayConfig `json:",omitempty"`
Expose ExposeConfig `json:",omitempty"`
TransparentProxy bool `json:",omitempty"`
MeshGateway MeshGatewayConfig `json:",omitempty"`
Expose ExposeConfig `json:",omitempty"`
TransparentProxy TransparentProxyConfig `json:",omitempty"`
Mode ProxyMode `json:",omitempty"`
QueryMeta
}

67
agent/structs/connect_proxy_config.go
View File

@ -75,6 +75,45 @@ func (c *MeshGatewayConfig) ToAPI() api.MeshGatewayConfig {
return api.MeshGatewayConfig{Mode: api.MeshGatewayMode(c.Mode)}
}
type ProxyMode string
const (
// ProxyModeDefault represents no specific mode and should
// be used to indicate that a different layer of the configuration
// chain should take precedence
ProxyModeDefault ProxyMode = ""
// ProxyModeTransparent represents that inbound and outbound application
// traffic is being captured and redirected through the proxy.
ProxyModeTransparent ProxyMode = "transparent"
// ProxyModeDirect represents that the proxy's listeners must be dialed directly
// by the local application and other proxies.
ProxyModeDirect ProxyMode = "direct"
)
func ValidateProxyMode(mode string) (ProxyMode, error) {
switch ProxyMode(mode) {
case ProxyModeDefault:
return ProxyModeDefault, nil
case ProxyModeDirect:
return ProxyModeDirect, nil
case ProxyModeTransparent:
return ProxyModeTransparent, nil
default:
return ProxyModeDefault, fmt.Errorf("Invalid Proxy Mode: %q", mode)
}
}
type TransparentProxyConfig struct {
// The port of the listener where outbound application traffic is being redirected to.
OutboundListenerPort int `json:",omitempty" alias:"outbound_listener_port"`
}
func (c TransparentProxyConfig) ToAPI() api.TransparentProxyConfig {
return api.TransparentProxyConfig{OutboundListenerPort: c.OutboundListenerPort}
}
// ConnectProxyConfig describes the configuration needed for any proxy managed
// or unmanaged. It describes a single logical service's listener and optionally
// upstreams and sidecar-related config for a single instance. To describe a
@ -105,6 +144,9 @@ type ConnectProxyConfig struct {
// (DestinationServiceID is set) but otherwise will be ignored.
LocalServicePort int `json:",omitempty" alias:"local_service_port"`
// Mode represents how the proxy's inbound and upstream listeners are dialed.
Mode ProxyMode
// Config is the arbitrary configuration data provided with the proxy
// registration.
Config map[string]interface{} `json:",omitempty" bexpr:"-"`
@ -119,20 +161,20 @@ type ConnectProxyConfig struct {
// Expose defines whether checks or paths are exposed through the proxy
Expose ExposeConfig `json:",omitempty"`
// TransparentProxy toggles whether inbound and outbound traffic is being
// redirected to the proxy.
TransparentProxy bool `json:",omitempty" alias:"transparent_proxy"`
// TransparentProxy defines configuration for when the proxy is in
// transparent mode.
TransparentProxy TransparentProxyConfig `json:",omitempty" alias:"transparent_proxy"`
}
func (t *ConnectProxyConfig) UnmarshalJSON(data []byte) (err error) {
type Alias ConnectProxyConfig
aux := &struct {
DestinationServiceNameSnake string `json:"destination_service_name"`
DestinationServiceIDSnake string `json:"destination_service_id"`
LocalServiceAddressSnake string `json:"local_service_address"`
LocalServicePortSnake int `json:"local_service_port"`
MeshGatewaySnake MeshGatewayConfig `json:"mesh_gateway"`
TransparentProxySnake bool `json:"transparent_proxy"`
DestinationServiceNameSnake string `json:"destination_service_name"`
DestinationServiceIDSnake string `json:"destination_service_id"`
LocalServiceAddressSnake string `json:"local_service_address"`
LocalServicePortSnake int `json:"local_service_port"`
MeshGatewaySnake MeshGatewayConfig `json:"mesh_gateway"`
TransparentProxySnake TransparentProxyConfig `json:"transparent_proxy"`
*Alias
}{
@ -156,8 +198,8 @@ func (t *ConnectProxyConfig) UnmarshalJSON(data []byte) (err error) {
if t.MeshGateway.Mode == "" {
t.MeshGateway.Mode = aux.MeshGatewaySnake.Mode
}
if !t.TransparentProxy {
t.TransparentProxy = aux.TransparentProxySnake
if t.TransparentProxy.OutboundListenerPort == 0 {
t.TransparentProxy.OutboundListenerPort = aux.TransparentProxySnake.OutboundListenerPort
}
return nil
@ -187,11 +229,12 @@ func (c *ConnectProxyConfig) ToAPI() *api.AgentServiceConnectProxyConfig {
DestinationServiceID: c.DestinationServiceID,
LocalServiceAddress: c.LocalServiceAddress,
LocalServicePort: c.LocalServicePort,
Mode: api.ProxyMode(c.Mode),
TransparentProxy: c.TransparentProxy.ToAPI(),
Config: c.Config,
Upstreams: c.Upstreams.ToAPI(),
MeshGateway: c.MeshGateway.ToAPI(),
Expose: c.Expose.ToAPI(),
TransparentProxy: c.TransparentProxy,
}
}

34
agent/structs/connect_proxy_config_test.go
View File

@ -572,3 +572,37 @@ func TestValidateMeshGatewayMode(t *testing.T) {
})
}
}
func TestValidateProxyMode(t *testing.T) {
for _, tc := range []struct {
modeConstant string
modeExplicit string
expect ProxyMode
ok bool
}{
{string(ProxyModeDefault), "", ProxyModeDefault, true},
{string(ProxyModeDirect), "direct", ProxyModeDirect, true},
{string(ProxyModeTransparent), "transparent", ProxyModeTransparent, true},
} {
tc := tc
t.Run(tc.modeConstant+" (constant)", func(t *testing.T) {
got, err := ValidateProxyMode(tc.modeConstant)
if tc.ok {
require.NoError(t, err)
require.Equal(t, tc.expect, got)
} else {
require.Error(t, err)
}
})
t.Run(tc.modeExplicit+" (explicit)", func(t *testing.T) {
got, err := ValidateProxyMode(tc.modeExplicit)
if tc.ok {
require.NoError(t, err)
require.Equal(t, tc.expect, got)
} else {
require.Error(t, err)
}
})
}
}

7
agent/xds/clusters.go
View File

@ -56,10 +56,11 @@ func (s *Server) clustersFromSnapshotConnectProxy(cfgSnap *proxycfg.ConfigSnapsh
}
clusters = append(clusters, appCluster)
// In TransparentProxy mode there needs to be a passthrough cluster for traffic going to destinations
// In transparent proxy mode there needs to be a passthrough cluster for traffic going to destinations
// that aren't in Consul's catalog.
// TODO (freddy): Add cluster-wide setting that can disable this cluster and restrict traffic to catalog destinations.
if cfgSnap.Proxy.TransparentProxy {
if cfgSnap.Proxy.Mode == structs.ProxyModeTransparent &&
!cfgSnap.ConnectProxy.ClusterConfig.TransparentProxy.CatalogDestinationsOnly {
clusters = append(clusters, &envoy_cluster_v3.Cluster{
Name: OriginalDestinationClusterName,
ClusterDiscoveryType: &envoy_cluster_v3.Cluster_Type{

9
agent/xds/clusters_test.go
View File

@ -629,7 +629,14 @@ func TestClustersFromSnapshot(t *testing.T) {
name: "transparent-proxy",
create: proxycfg.TestConfigSnapshot,
setup: func(snap *proxycfg.ConfigSnapshot) {
snap.Proxy.TransparentProxy = true
snap.Proxy.Mode = structs.ProxyModeTransparent
snap.ConnectProxy.ClusterConfigSet = true
snap.ConnectProxy.ClusterConfig = &structs.ClusterConfigEntry{
TransparentProxy: structs.TransparentProxyClusterConfig{
CatalogDestinationsOnly: false,
},
}
},
},
}

11
agent/xds/listeners.go
View File

@ -65,14 +65,19 @@ func (s *Server) listenersFromSnapshotConnectProxy(cInfo connectionInfo, cfgSnap
return nil, err
}
// This outboundListener is exclusively used when TransparentProxy mode is active.
// This outboundListener is exclusively used when transparent proxy mode is active.
// In that situation there is a single listener where we are redirecting outbound traffic,
// and each upstream gets a filter chain attached to that listener.
var outboundListener *envoy_listener_v3.Listener
if cfgSnap.Proxy.TransparentProxy {
if cfgSnap.Proxy.Mode == structs.ProxyModeTransparent {
port := iptables.DefaultTProxyOutboundPort
if cfgSnap.Proxy.TransparentProxy.OutboundListenerPort != 0 {
port = cfgSnap.Proxy.TransparentProxy.OutboundListenerPort
}
// TODO (freddy) Make DefaultTProxyOutboundPort configurable
outboundListener = makeListener(OutboundListenerName, "127.0.0.1", iptables.DefaultTProxyOutboundPort, envoy_core_v3.TrafficDirection_OUTBOUND)
outboundListener = makeListener(OutboundListenerName, "127.0.0.1", port, envoy_core_v3.TrafficDirection_OUTBOUND)
outboundListener.FilterChains = make([]*envoy_listener_v3.FilterChain, 0)
outboundListener.ListenerFilters = []*envoy_listener_v3.ListenerFilter{
{

8
agent/xds/listeners_test.go
View File

@ -481,11 +481,11 @@ func TestListenersFromSnapshot(t *testing.T) {
name: "transparent-proxy",
create: proxycfg.TestConfigSnapshot,
setup: func(snap *proxycfg.ConfigSnapshot) {
snap.Proxy.TransparentProxy = true
snap.Proxy.Mode = structs.ProxyModeTransparent
snap.ConnectProxy.ClusterConfigSet = true
// DiscoveryChain without an UpstreamConfig should yield a filter chain when in TransparentProxy mode
// DiscoveryChain without an UpstreamConfig should yield a filter chain when in transparent proxy mode
snap.ConnectProxy.DiscoveryChain["google"] = discoverychain.TestCompileConfigEntries(
t, "google", "default", "dc1",
connect.TestClusterID+".consul", "dc1", nil)
@ -514,7 +514,7 @@ func TestListenersFromSnapshot(t *testing.T) {
name: "transparent-proxy-catalog-destinations-only",
create: proxycfg.TestConfigSnapshot,
setup: func(snap *proxycfg.ConfigSnapshot) {
snap.Proxy.TransparentProxy = true
snap.Proxy.Mode = structs.ProxyModeTransparent
snap.ConnectProxy.ClusterConfigSet = true
snap.ConnectProxy.ClusterConfig = &structs.ClusterConfigEntry{
@ -525,7 +525,7 @@ func TestListenersFromSnapshot(t *testing.T) {
},
}
// DiscoveryChain without an UpstreamConfig should yield a filter chain when in TransparentProxy mode
// DiscoveryChain without an UpstreamConfig should yield a filter chain when in transparent proxy mode
snap.ConnectProxy.DiscoveryChain["google"] = discoverychain.TestCompileConfigEntries(
t, "google", "default", "dc1",
connect.TestClusterID+".consul", "dc1", nil)

4
agent/xds/server.go
View File

@ -52,7 +52,7 @@ const (
// PublicListenerName is the name we give the public listener in Envoy config.
PublicListenerName = "public_listener"
// OutboundListenerName is the name we give the outbound Envoy listener when TransparentProxy mode is enabled.
// OutboundListenerName is the name we give the outbound Envoy listener when transparent proxy mode is enabled.
OutboundListenerName = "outbound_listener"
// LocalAppClusterName is the name we give the local application "cluster" in
@ -86,7 +86,7 @@ const (
// OriginalDestinationClusterName is the name we give to the passthrough
// cluster which redirects transparently-proxied requests to their original
// destination. This cluster prevents Consul from blocking connections to
// destinations outside of the catalog when in TransparentProxy mode.
// destinations outside of the catalog when in transparent proxy mode.
OriginalDestinationClusterName = "original-destination"
// DefaultAuthCheckFrequency is the default value for

3
api/agent.go
View File

@ -118,11 +118,12 @@ type AgentServiceConnectProxyConfig struct {
DestinationServiceID string `json:",omitempty"`
LocalServiceAddress string `json:",omitempty"`
LocalServicePort int `json:",omitempty"`
Mode ProxyMode `json:",omitempty"`
TransparentProxy TransparentProxyConfig `json:",omitempty"`
Config map[string]interface{} `json:",omitempty" bexpr:"-"`
Upstreams []Upstream `json:",omitempty"`
MeshGateway MeshGatewayConfig `json:",omitempty"`
Expose ExposeConfig `json:",omitempty"`
TransparentProxy bool `json:",omitempty"`
}
const (

4
api/agent_test.go
View File

@ -438,7 +438,7 @@ func TestAPI_AgentServices_ExternalConnectProxy(t *testing.T) {
Port: 8001,
Proxy: &AgentServiceConnectProxyConfig{
DestinationServiceName: "foo",
TransparentProxy: true,
Mode: ProxyModeTransparent,
},
}
if err := agent.ServiceRegister(reg); err != nil {
@ -455,7 +455,7 @@ func TestAPI_AgentServices_ExternalConnectProxy(t *testing.T) {
if _, ok := services["foo-proxy"]; !ok {
t.Fatalf("missing proxy service: %v", services)
}
if !services["foo-proxy"].Proxy.TransparentProxy {
if services["foo-proxy"].Proxy.Mode != ProxyModeTransparent {
t.Fatalf("expected transparent proxy mode to be enabled")
}

42
api/config_entry.go
View File

@ -64,6 +64,28 @@ type MeshGatewayConfig struct {
Mode MeshGatewayMode `json:",omitempty"`
}
type ProxyMode string
const (
// ProxyModeDefault represents no specific mode and should
// be used to indicate that a different layer of the configuration
// chain should take precedence
ProxyModeDefault ProxyMode = ""
// ProxyModeTransparent represents that inbound and outbound application
// traffic is being captured and redirected through the proxy.
ProxyModeTransparent ProxyMode = "transparent"
// ProxyModeDirect represents that the proxy's listeners must be dialed directly
// by the local application and other proxies.
ProxyModeDirect ProxyMode = "direct"
)
type TransparentProxyConfig struct {
// The port of the listener where outbound application traffic is being redirected to.
OutboundListenerPort int `json:",omitempty" alias:"outbound_listener_port"`
}
// ExposeConfig describes HTTP paths to expose through Envoy outside of Connect.
// Users can expose individual paths and/or all HTTP/GRPC paths for checks.
type ExposeConfig struct {
@ -171,14 +193,15 @@ type UpstreamLimits struct {
type ServiceConfigEntry struct {
Kind string
Name string
Namespace string `json:",omitempty"`
Protocol string `json:",omitempty"`
MeshGateway MeshGatewayConfig `json:",omitempty" alias:"mesh_gateway"`
Connect ConnectConfiguration `json:",omitempty"`
Expose ExposeConfig `json:",omitempty"`
TransparentProxy bool `json:",omitempty" alias:"transparent_proxy"`
ExternalSNI string `json:",omitempty" alias:"external_sni"`
Meta map[string]string `json:",omitempty"`
Namespace string `json:",omitempty"`
Protocol string `json:",omitempty"`
Mode ProxyMode `json:",omitempty"`
TransparentProxy TransparentProxyConfig `json:",omitempty" alias:"transparent_proxy"`
MeshGateway MeshGatewayConfig `json:",omitempty" alias:"mesh_gateway"`
Connect ConnectConfiguration `json:",omitempty"`
Expose ExposeConfig `json:",omitempty"`
ExternalSNI string `json:",omitempty" alias:"external_sni"`
Meta map[string]string `json:",omitempty"`
CreateIndex uint64
ModifyIndex uint64
}
@ -211,10 +234,11 @@ type ProxyConfigEntry struct {
Kind string
Name string
Namespace string `json:",omitempty"`
Mode ProxyMode `json:",omitempty"`
TransparentProxy TransparentProxyConfig `json:",omitempty" alias:"transparent_proxy"`
Config map[string]interface{} `json:",omitempty"`
MeshGateway MeshGatewayConfig `json:",omitempty" alias:"mesh_gateway"`
Expose ExposeConfig `json:",omitempty"`
TransparentProxy bool `json:",omitempty" alias:"transparent_proxy"`
Meta map[string]string `json:",omitempty"`
CreateIndex uint64
ModifyIndex uint64

16
api/config_entry_test.go
View File

@ -297,7 +297,10 @@ func TestDecodeConfigEntry(t *testing.T) {
"MeshGateway": {
"Mode": "remote"
},
"TransparentProxy": true
"Mode": "transparent",
"TransparentProxy": {
"OutboundListenerPort": 808
}
}
`,
expect: &ProxyConfigEntry{
@ -317,7 +320,8 @@ func TestDecodeConfigEntry(t *testing.T) {
MeshGateway: MeshGatewayConfig{
Mode: MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: ProxyModeTransparent,
TransparentProxy: TransparentProxyConfig{OutboundListenerPort: 808},
},
},
{
@ -335,7 +339,10 @@ func TestDecodeConfigEntry(t *testing.T) {
"MeshGateway": {
"Mode": "remote"
},
"TransparentProxy": true,
"Mode": "transparent",
"TransparentProxy": {
"OutboundListenerPort": 808
},
"Connect": {
"UpstreamConfigs": {
"redis": {
@ -380,7 +387,8 @@ func TestDecodeConfigEntry(t *testing.T) {
MeshGateway: MeshGatewayConfig{
Mode: MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: ProxyModeTransparent,
TransparentProxy: TransparentProxyConfig{OutboundListenerPort: 808},
Connect: ConnectConfiguration{
UpstreamConfigs: map[string]UpstreamConfig{
"redis": {

55
command/config/write/config_write_test.go
View File

@ -182,7 +182,10 @@ func TestParseConfigEntry(t *testing.T) {
mesh_gateway {
mode = "remote"
}
transparent_proxy = true
mode = "direct"
transparent_proxy = {
outbound_listener_port = 10101
}
`,
camel: `
Kind = "proxy-defaults"
@ -201,7 +204,10 @@ func TestParseConfigEntry(t *testing.T) {
MeshGateway {
Mode = "remote"
}
TransparentProxy = true
Mode = "direct"
TransparentProxy = {
outbound_listener_port = 10101
}
`,
snakeJSON: `
{
@ -221,7 +227,10 @@ func TestParseConfigEntry(t *testing.T) {
"mesh_gateway": {
"mode": "remote"
},
"transparent_proxy": true
"mode": "direct",
"transparent_proxy": {
"outbound_listener_port": 10101
}
}
`,
camelJSON: `
@ -242,7 +251,10 @@ func TestParseConfigEntry(t *testing.T) {
"MeshGateway": {
"Mode": "remote"
},
"TransparentProxy": true
"Mode": "direct",
"TransparentProxy": {
"OutboundListenerPort": 10101
}
}
`,
expect: &api.ProxyConfigEntry{
@ -262,7 +274,10 @@ func TestParseConfigEntry(t *testing.T) {
MeshGateway: api.MeshGatewayConfig{
Mode: api.MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: api.ProxyModeDirect,
TransparentProxy: api.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
expectJSON: &api.ProxyConfigEntry{
Kind: "proxy-defaults",
@ -281,7 +296,10 @@ func TestParseConfigEntry(t *testing.T) {
MeshGateway: api.MeshGatewayConfig{
Mode: api.MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: api.ProxyModeDirect,
TransparentProxy: api.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
},
},
{
@ -443,7 +461,10 @@ func TestParseConfigEntry(t *testing.T) {
mesh_gateway {
mode = "remote"
}
transparent_proxy = true
mode = "direct"
transparent_proxy = {
outbound_listener_port = 10101
}
connect {
upstream_configs {
"redis" {
@ -487,7 +508,10 @@ func TestParseConfigEntry(t *testing.T) {
MeshGateway {
Mode = "remote"
}
TransparentProxy = true
Mode = "direct"
TransparentProxy = {
outbound_listener_port = 10101
}
connect = {
upstream_configs = {
"redis" = {
@ -532,7 +556,10 @@ func TestParseConfigEntry(t *testing.T) {
"mesh_gateway": {
"mode": "remote"
},
"transparent_proxy": true,
"mode": "direct",
"transparent_proxy": {
"outbound_listener_port": 10101
},
"connect": {
"upstream_configs": {
"redis": {
@ -578,7 +605,10 @@ func TestParseConfigEntry(t *testing.T) {
"MeshGateway": {
"Mode": "remote"
},
"TransparentProxy": true,
"Mode": "direct",
"TransparentProxy": {
"OutboundListenerPort": 10101
},
"Connect": {
"UpstreamConfigs": {
"redis": {
@ -623,7 +653,10 @@ func TestParseConfigEntry(t *testing.T) {
MeshGateway: api.MeshGatewayConfig{
Mode: api.MeshGatewayModeRemote,
},
TransparentProxy: true,
Mode: api.ProxyModeDirect,
TransparentProxy: api.TransparentProxyConfig{
OutboundListenerPort: 10101,
},
Connect: api.ConnectConfiguration{
UpstreamConfigs: map[string]api.UpstreamConfig{
"redis": {

16
proto/pbservice/service.gen.go
View File

@ -14,7 +14,8 @@ func ConnectProxyConfigToStructs(s ConnectProxyConfig) structs.ConnectProxyConfi
t.Upstreams = UpstreamsToStructs(s.Upstreams)
t.MeshGateway = MeshGatewayConfigToStructs(s.MeshGateway)
t.Expose = ExposeConfigToStructs(s.Expose)
t.TransparentProxy = s.TransparentProxy
t.TransparentProxy = TransparentProxyConfigToStructs(s.TransparentProxy)
t.Mode = s.Mode
return t
}
func NewConnectProxyConfigFromStructs(t structs.ConnectProxyConfig) ConnectProxyConfig {
@ -27,7 +28,8 @@ func NewConnectProxyConfigFromStructs(t structs.ConnectProxyConfig) ConnectProxy
s.Upstreams = NewUpstreamsFromStructs(t.Upstreams)
s.MeshGateway = NewMeshGatewayConfigFromStructs(t.MeshGateway)
s.Expose = NewExposeConfigFromStructs(t.Expose)
s.TransparentProxy = t.TransparentProxy
s.TransparentProxy = NewTransparentProxyConfigFromStructs(t.TransparentProxy)
s.Mode = t.Mode
return s
}
func ExposeConfigToStructs(s ExposeConfig) structs.ExposeConfig {
@ -70,6 +72,16 @@ func NewMeshGatewayConfigFromStructs(t structs.MeshGatewayConfig) MeshGatewayCon
s.Mode = t.Mode
return s
}
func TransparentProxyConfigToStructs(s TransparentProxyConfig) structs.TransparentProxyConfig {
var t structs.TransparentProxyConfig
t.OutboundListenerPort = int(s.OutboundListenerPort)
return t
}
func NewTransparentProxyConfigFromStructs(t structs.TransparentProxyConfig) TransparentProxyConfig {
var s TransparentProxyConfig
s.OutboundListenerPort = int32(t.OutboundListenerPort)
return s
}
func ServiceConnectToStructs(s ServiceConnect) structs.ServiceConnect {
var t structs.ServiceConnect
t.Native = s.Native

10
proto/pbservice/service.pb.binary.go
View File

@ -67,6 +67,16 @@ func (msg *MeshGatewayConfig) UnmarshalBinary(b []byte) error {
return proto.Unmarshal(b, msg)
}
// MarshalBinary implements encoding.BinaryMarshaler
func (msg *TransparentProxyConfig) MarshalBinary() ([]byte, error) {
return proto.Marshal(msg)
}
// UnmarshalBinary implements encoding.BinaryUnmarshaler
func (msg *TransparentProxyConfig) UnmarshalBinary(b []byte) error {
return proto.Unmarshal(b, msg)
}
// MarshalBinary implements encoding.BinaryMarshaler
func (msg *ServiceDefinition) MarshalBinary() ([]byte, error) {
return proto.Marshal(msg)

395
proto/pbservice/service.pb.go
View File

@ -67,13 +67,15 @@ type ConnectProxyConfig struct {
// setup.
// mog: func-to=UpstreamsToStructs func-from=NewUpstreamsFromStructs
Upstreams []Upstream `protobuf:"bytes,6,rep,name=Upstreams,proto3" json:"Upstreams"`
// MeshGateway defines the mesh gateway configuration for this upstream
// MeshGateway defines the mesh gateway configuration for upstreams
MeshGateway MeshGatewayConfig `protobuf:"bytes,7,opt,name=MeshGateway,proto3" json:"MeshGateway"`
// Expose defines whether checks or paths are exposed through the proxy
Expose ExposeConfig `protobuf:"bytes,8,opt,name=Expose,proto3" json:"Expose"`
// TransparentProxy enables configuring the service mesh as if all inbound
// and outbound traffic is being redirected to this proxy
TransparentProxy bool `protobuf:"varint,9,opt,name=TransparentProxy,proto3" json:"TransparentProxy,omitempty"`
// Mode represents how the proxy's inbound and upstream listeners are dialed.
Mode github_com_hashicorp_consul_agent_structs.ProxyMode `protobuf:"bytes,9,opt,name=Mode,proto3,casttype=github.com/hashicorp/consul/agent/structs.ProxyMode" json:"Mode,omitempty"`
// TransparentProxy defines configuration for when the proxy is in
// transparent mode.
TransparentProxy TransparentProxyConfig `protobuf:"bytes,10,opt,name=TransparentProxy,proto3" json:"TransparentProxy"`
}
func (m *ConnectProxyConfig) Reset() { *m = ConnectProxyConfig{} }
@ -387,6 +389,48 @@ func (m *MeshGatewayConfig) XXX_DiscardUnknown() {
var xxx_messageInfo_MeshGatewayConfig proto.InternalMessageInfo
// mog annotation:
//
// target=github.com/hashicorp/consul/agent/structs.TransparentProxyConfig
// output=service.gen.go
// name=Structs
type TransparentProxyConfig struct {
OutboundListenerPort int32 `protobuf:"varint,1,opt,name=OutboundListenerPort,proto3" json:"OutboundListenerPort,omitempty"`
}
func (m *TransparentProxyConfig) Reset() { *m = TransparentProxyConfig{} }
func (m *TransparentProxyConfig) String() string { return proto.CompactTextString(m) }
func (*TransparentProxyConfig) ProtoMessage() {}
func (*TransparentProxyConfig) Descriptor() ([]byte, []int) {
return fileDescriptor_cbb99233b75fb80b, []int{6}
}
func (m *TransparentProxyConfig) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
}
func (m *TransparentProxyConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
if deterministic {
return xxx_messageInfo_TransparentProxyConfig.Marshal(b, m, deterministic)
} else {
b = b[:cap(b)]
n, err := m.MarshalToSizedBuffer(b)
if err != nil {
return nil, err
}
return b[:n], nil
}
}
func (m *TransparentProxyConfig) XXX_Merge(src proto.Message) {
xxx_messageInfo_TransparentProxyConfig.Merge(m, src)
}
func (m *TransparentProxyConfig) XXX_Size() int {
return m.Size()
}
func (m *TransparentProxyConfig) XXX_DiscardUnknown() {
xxx_messageInfo_TransparentProxyConfig.DiscardUnknown(m)
}
var xxx_messageInfo_TransparentProxyConfig proto.InternalMessageInfo
// ServiceDefinition is used to JSON decode the Service definitions. For
// documentation on specific fields see NodeService which is better documented.
//
@ -435,7 +479,7 @@ func (m *ServiceDefinition) Reset() { *m = ServiceDefinition{} }
func (m *ServiceDefinition) String() string { return proto.CompactTextString(m) }
func (*ServiceDefinition) ProtoMessage() {}
func (*ServiceDefinition) Descriptor() ([]byte, []int) {
return fileDescriptor_cbb99233b75fb80b, []int{6}
return fileDescriptor_cbb99233b75fb80b, []int{7}
}
func (m *ServiceDefinition) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -475,7 +519,7 @@ func (m *ServiceAddress) Reset() { *m = ServiceAddress{} }
func (m *ServiceAddress) String() string { return proto.CompactTextString(m) }
func (*ServiceAddress) ProtoMessage() {}
func (*ServiceAddress) Descriptor() ([]byte, []int) {
return fileDescriptor_cbb99233b75fb80b, []int{7}
return fileDescriptor_cbb99233b75fb80b, []int{8}
}
func (m *ServiceAddress) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -516,7 +560,7 @@ func (m *Weights) Reset() { *m = Weights{} }
func (m *Weights) String() string { return proto.CompactTextString(m) }
func (*Weights) ProtoMessage() {}
func (*Weights) Descriptor() ([]byte, []int) {
return fileDescriptor_cbb99233b75fb80b, []int{8}
return fileDescriptor_cbb99233b75fb80b, []int{9}
}
func (m *Weights) XXX_Unmarshal(b []byte) error {
return m.Unmarshal(b)
@ -552,6 +596,7 @@ func init() {
proto.RegisterType((*ExposeConfig)(nil), "pbservice.ExposeConfig")
proto.RegisterType((*ExposePath)(nil), "pbservice.ExposePath")
proto.RegisterType((*MeshGatewayConfig)(nil), "pbservice.MeshGatewayConfig")
proto.RegisterType((*TransparentProxyConfig)(nil), "pbservice.TransparentProxyConfig")
proto.RegisterType((*ServiceDefinition)(nil), "pbservice.ServiceDefinition")
proto.RegisterMapType((map[string]string)(nil), "pbservice.ServiceDefinition.MetaEntry")
proto.RegisterMapType((map[string]ServiceAddress)(nil), "pbservice.ServiceDefinition.TaggedAddressesEntry")
@ -562,75 +607,78 @@ func init() {
func init() { proto.RegisterFile("proto/pbservice/service.proto", fileDescriptor_cbb99233b75fb80b) }
var fileDescriptor_cbb99233b75fb80b = []byte{
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}
func (m *ConnectProxyConfig) Marshal() (dAtA []byte, err error) {
@ -653,15 +701,22 @@ func (m *ConnectProxyConfig) MarshalToSizedBuffer(dAtA []byte) (int, error) {
_ = i
var l int
_ = l
if m.TransparentProxy {
i--
if m.TransparentProxy {
dAtA[i] = 1
} else {
dAtA[i] = 0
{
size, err := m.TransparentProxy.MarshalToSizedBuffer(dAtA[:i])
if err != nil {
return 0, err
}
i -= size
i = encodeVarintService(dAtA, i, uint64(size))
}
i--
dAtA[i] = 0x52
if len(m.Mode) > 0 {
i -= len(m.Mode)
copy(dAtA[i:], m.Mode)
i = encodeVarintService(dAtA, i, uint64(len(m.Mode)))
i--
dAtA[i] = 0x48
dAtA[i] = 0x4a
}
{
size, err := m.Expose.MarshalToSizedBuffer(dAtA[:i])
@ -1012,6 +1067,34 @@ func (m *MeshGatewayConfig) MarshalToSizedBuffer(dAtA []byte) (int, error) {
return len(dAtA) - i, nil
}
func (m *TransparentProxyConfig) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
n, err := m.MarshalToSizedBuffer(dAtA[:size])
if err != nil {
return nil, err
}
return dAtA[:n], nil
}
func (m *TransparentProxyConfig) MarshalTo(dAtA []byte) (int, error) {
size := m.Size()
return m.MarshalToSizedBuffer(dAtA[:size])
}
func (m *TransparentProxyConfig) MarshalToSizedBuffer(dAtA []byte) (int, error) {
i := len(dAtA)
_ = i
var l int
_ = l
if m.OutboundListenerPort != 0 {
i = encodeVarintService(dAtA, i, uint64(m.OutboundListenerPort))
i--
dAtA[i] = 0x8
}
return len(dAtA) - i, nil
}
func (m *ServiceDefinition) Marshal() (dAtA []byte, err error) {
size := m.Size()
dAtA = make([]byte, size)
@ -1325,9 +1408,12 @@ func (m *ConnectProxyConfig) Size() (n int) {
n += 1 + l + sovService(uint64(l))
l = m.Expose.Size()
n += 1 + l + sovService(uint64(l))
if m.TransparentProxy {
n += 2
l = len(m.Mode)
if l > 0 {
n += 1 + l + sovService(uint64(l))
}
l = m.TransparentProxy.Size()
n += 1 + l + sovService(uint64(l))
return n
}
@ -1445,6 +1531,18 @@ func (m *MeshGatewayConfig) Size() (n int) {
return n
}
func (m *TransparentProxyConfig) Size() (n int) {
if m == nil {
return 0
}
var l int
_ = l
if m.OutboundListenerPort != 0 {
n += 1 + sovService(uint64(m.OutboundListenerPort))
}
return n
}
func (m *ServiceDefinition) Size() (n int) {
if m == nil {
return 0
@ -1843,10 +1941,10 @@ func (m *ConnectProxyConfig) Unmarshal(dAtA []byte) error {
}
iNdEx = postIndex
case 9:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field TransparentProxy", wireType)
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field Mode", wireType)
}
var v int
var stringLen uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowService
@ -1856,12 +1954,57 @@ func (m *ConnectProxyConfig) Unmarshal(dAtA []byte) error {
}
b := dAtA[iNdEx]
iNdEx++
v |= int(b&0x7F) << shift
stringLen |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
m.TransparentProxy = bool(v != 0)
intStringLen := int(stringLen)
if intStringLen < 0 {
return ErrInvalidLengthService
}
postIndex := iNdEx + intStringLen
if postIndex < 0 {
return ErrInvalidLengthService
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
m.Mode = github_com_hashicorp_consul_agent_structs.ProxyMode(dAtA[iNdEx:postIndex])
iNdEx = postIndex
case 10:
if wireType != 2 {
return fmt.Errorf("proto: wrong wireType = %d for field TransparentProxy", wireType)
}
var msglen int
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowService
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
msglen |= int(b&0x7F) << shift
if b < 0x80 {
break
}
}
if msglen < 0 {
return ErrInvalidLengthService
}
postIndex := iNdEx + msglen
if postIndex < 0 {
return ErrInvalidLengthService
}
if postIndex > l {
return io.ErrUnexpectedEOF
}
if err := m.TransparentProxy.Unmarshal(dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex
default:
iNdEx = preIndex
skippy, err := skipService(dAtA[iNdEx:])
@ -2683,6 +2826,78 @@ func (m *MeshGatewayConfig) Unmarshal(dAtA []byte) error {
}
return nil
}
func (m *TransparentProxyConfig) Unmarshal(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0
for iNdEx < l {
preIndex := iNdEx
var wire uint64
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowService
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
wire |= uint64(b&0x7F) << shift
if b < 0x80 {
break
}
}
fieldNum := int32(wire >> 3)
wireType := int(wire & 0x7)
if wireType == 4 {
return fmt.Errorf("proto: TransparentProxyConfig: wiretype end group for non-group")
}
if fieldNum <= 0 {
return fmt.Errorf("proto: TransparentProxyConfig: illegal tag %d (wire type %d)", fieldNum, wire)
}
switch fieldNum {
case 1:
if wireType != 0 {
return fmt.Errorf("proto: wrong wireType = %d for field OutboundListenerPort", wireType)
}
m.OutboundListenerPort = 0
for shift := uint(0); ; shift += 7 {
if shift >= 64 {
return ErrIntOverflowService
}
if iNdEx >= l {
return io.ErrUnexpectedEOF
}
b := dAtA[iNdEx]
iNdEx++
m.OutboundListenerPort |= int32(b&0x7F) << shift
if b < 0x80 {
break
}
}
default:
iNdEx = preIndex
skippy, err := skipService(dAtA[iNdEx:])
if err != nil {
return err
}
if skippy < 0 {
return ErrInvalidLengthService
}
if (iNdEx + skippy) < 0 {
return ErrInvalidLengthService
}
if (iNdEx + skippy) > l {
return io.ErrUnexpectedEOF
}
iNdEx += skippy
}
}
if iNdEx > l {
return io.ErrUnexpectedEOF
}
return nil
}
func (m *ServiceDefinition) Unmarshal(dAtA []byte) error {
l := len(dAtA)
iNdEx := 0

20
proto/pbservice/service.proto
View File

@ -64,15 +64,18 @@ message ConnectProxyConfig {
// mog: func-to=UpstreamsToStructs func-from=NewUpstreamsFromStructs
repeated Upstream Upstreams = 6 [(gogoproto.nullable) = false];
// MeshGateway defines the mesh gateway configuration for this upstream
// MeshGateway defines the mesh gateway configuration for upstreams
MeshGatewayConfig MeshGateway = 7 [(gogoproto.nullable) = false];
// Expose defines whether checks or paths are exposed through the proxy
ExposeConfig Expose = 8 [(gogoproto.nullable) = false];
// TransparentProxy enables configuring the service mesh as if all inbound
// and outbound traffic is being redirected to this proxy
bool TransparentProxy = 9;
// Mode represents how the proxy's inbound and upstream listeners are dialed.
string Mode = 9 [(gogoproto.casttype) = "github.com/hashicorp/consul/agent/structs.ProxyMode"];
// TransparentProxy defines configuration for when the proxy is in
// transparent mode.
TransparentProxyConfig TransparentProxy = 10 [(gogoproto.nullable) = false];
}
// Upstream represents a single upstream dependency for a service or proxy. It
@ -200,6 +203,15 @@ message MeshGatewayConfig {
string Mode = 1 [(gogoproto.casttype) = "github.com/hashicorp/consul/agent/structs.MeshGatewayMode"];
}
// mog annotation:
//
// target=github.com/hashicorp/consul/agent/structs.TransparentProxyConfig
// output=service.gen.go
// name=Structs
message TransparentProxyConfig {
int32 OutboundListenerPort = 1;
}
// ServiceDefinition is used to JSON decode the Service definitions. For
// documentation on specific fields see NodeService which is better documented.
//