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Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
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consul/agent/structs/connect_proxy_config_test.go

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package structs
import (
"encoding/json"
"fmt"
"testing"
"github.com/hashicorp/consul/api"
"github.com/stretchr/testify/require"
)
func TestConnectProxyConfig_ToAPI(t *testing.T) {
tests := []struct {
name string
in ConnectProxyConfig
want *api.AgentServiceConnectProxyConfig
}{
{
name: "service",
in: ConnectProxyConfig{
DestinationServiceName: "web",
DestinationServiceID: "web1",
LocalServiceAddress: "127.0.0.2",
LocalServicePort: 5555,
Config: map[string]interface{}{
"foo": "bar",
},
MeshGateway: MeshGatewayConfig{
Mode: MeshGatewayModeLocal,
},
Upstreams: Upstreams{
{
DestinationType: UpstreamDestTypeService,
DestinationName: "foo",
Datacenter: "dc1",
LocalBindPort: 1234,
MeshGateway: MeshGatewayConfig{
Mode: MeshGatewayModeLocal,
},
},
{
DestinationType: UpstreamDestTypePreparedQuery,
DestinationName: "foo",
Datacenter: "dc1",
LocalBindPort: 2345,
LocalBindAddress: "127.10.10.10",
},
},
Mode: ProxyModeTransparent,
TransparentProxy: TransparentProxyConfig{
OutboundListenerPort: 808,
},
},
want: &api.AgentServiceConnectProxyConfig{
DestinationServiceName: "web",
DestinationServiceID: "web1",
LocalServiceAddress: "127.0.0.2",
LocalServicePort: 5555,
Config: map[string]interface{}{
"foo": "bar",
},
MeshGateway: api.MeshGatewayConfig{
Mode: api.MeshGatewayModeLocal,
},
Upstreams: []api.Upstream{
{
DestinationType: UpstreamDestTypeService,
DestinationName: "foo",
Datacenter: "dc1",
LocalBindPort: 1234,
MeshGateway: api.MeshGatewayConfig{
Mode: api.MeshGatewayModeLocal,
},
},
{
DestinationType: UpstreamDestTypePreparedQuery,
DestinationName: "foo",
Datacenter: "dc1",
LocalBindPort: 2345,
LocalBindAddress: "127.10.10.10",
},
},
Mode: api.ProxyModeTransparent,
TransparentProxy: &api.TransparentProxyConfig{
OutboundListenerPort: 808,
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
require.Equal(t, tt.want, tt.in.ToAPI())
})
}
}
func TestConnectProxyConfig_MarshalJSON(t *testing.T) {
tests := []struct {
name string
in ConnectProxyConfig
want string
wantErr bool
}{
{
name: "direct proxy",
in: ConnectProxyConfig{
DestinationServiceName: "api",
DestinationServiceID: "api-1",
LocalServiceAddress: "127.0.0.1",
LocalServicePort: 8080,
Mode: ProxyModeDirect,
Config: map[string]interface{}{
"connect_timeout_ms": 5000,
},
Upstreams: Upstreams{
Upstream{
DestinationType: UpstreamDestTypeService,
DestinationName: "db",
Datacenter: "dc1",
LocalBindPort: 1234,
},
},
MeshGateway: MeshGatewayConfig{Mode: MeshGatewayModeLocal},
Expose: ExposeConfig{Checks: true},
// No transparent proxy config, since proxy is set to "direct" mode.
// Field should be omitted from json output.
// TransparentProxy: TransparentProxyConfig{},
},
want: `{
"DestinationServiceName": "api",
"DestinationServiceID": "api-1",
"LocalServiceAddress": "127.0.0.1",
"LocalServicePort": 8080,
"Mode": "direct",
"Config": {
"connect_timeout_ms": 5000
},
"Upstreams": [
{
"DestinationType": "service",
"DestinationName": "db",
"Datacenter": "dc1",
"LocalBindPort": 1234,
"MeshGateway": {}
}
],
"MeshGateway": {
"Mode": "local"
},
"Expose": {
"Checks": true
}
}`,
wantErr: false,
},
{
name: "transparent proxy",
in: ConnectProxyConfig{
DestinationServiceName: "billing",
DestinationServiceID: "billing-1",
LocalServiceAddress: "127.0.0.1",
LocalServicePort: 8080,
Mode: ProxyModeTransparent,
Config: map[string]interface{}{
"connect_timeout_ms": 5000,
},
MeshGateway: MeshGatewayConfig{Mode: MeshGatewayModeLocal},
Expose: ExposeConfig{Checks: true},
TransparentProxy: TransparentProxyConfig{
DialedDirectly: true,
OutboundListenerPort: 16001,
},
},
want: `{
"DestinationServiceName": "billing",
"DestinationServiceID": "billing-1",
"LocalServiceAddress": "127.0.0.1",
"LocalServicePort": 8080,
"Mode": "transparent",
"Config": {
"connect_timeout_ms": 5000
},
"TransparentProxy": {
"DialedDirectly": true,
"OutboundListenerPort": 16001
},
"MeshGateway": {
"Mode": "local"
},
"Expose": {
"Checks": true
}
}`,
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := tt.in.MarshalJSON()
if tt.wantErr {
require.Error(t, err)
return
}
require.NoError(t, err)
require.JSONEq(t, tt.want, string(got))
})
}
}
func TestUpstream_MarshalJSON(t *testing.T) {
tests := []struct {
name string
in Upstream
want string
wantErr bool
}{
{
name: "service",
in: Upstream{
DestinationType: UpstreamDestTypeService,
DestinationName: "foo",
Datacenter: "dc1",
LocalBindPort: 1234,
// Test IngressHosts does not marshal
IngressHosts: []string{"test.example.com"},
},
want: `{
"DestinationType": "service",
"DestinationName": "foo",
"Datacenter": "dc1",
"LocalBindPort": 1234,
"MeshGateway": {}
}`,
wantErr: false,
},
{
name: "pq",
in: Upstream{
DestinationType: UpstreamDestTypePreparedQuery,
DestinationName: "foo",
Datacenter: "dc1",
LocalBindPort: 1234,
},
want: `{
"DestinationType": "prepared_query",
"DestinationName": "foo",
"Datacenter": "dc1",
"LocalBindPort": 1234,
"MeshGateway": {}
}`,
wantErr: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := json.Marshal(tt.in)
if tt.wantErr {
require.Error(t, err)
return
}
require.NoError(t, err)
require.JSONEq(t, tt.want, string(got))
})
}
}
func TestUpstream_UnmarshalJSON(t *testing.T) {
tests := []struct {
name string
json string
jsonSnake string
want Upstream
wantErr bool
}{
{
name: "service",
json: `{
"DestinationType": "service",
"DestinationName": "foo",
"Datacenter": "dc1"
}`,
want: Upstream{
DestinationType: UpstreamDestTypeService,
DestinationName: "foo",
Datacenter: "dc1",
},
wantErr: false,
},
{
name: "pq",
json: `{
"DestinationType": "prepared_query",
"DestinationName": "foo",
"Datacenter": "dc1"
}`,
want: Upstream{
DestinationType: UpstreamDestTypePreparedQuery,
DestinationName: "foo",
Datacenter: "dc1",
},
wantErr: false,
},
{
name: "ingress-hosts-do-not-unmarshal",
json: `{
"DestinationType": "service",
"DestinationName": "foo",
"Datacenter": "dc1",
"IngressHosts": ["asdf"]
}`,
want: Upstream{
DestinationType: UpstreamDestTypeService,
DestinationName: "foo",
Datacenter: "dc1",
IngressHosts: nil, // Make sure this doesn't get parsed
},
wantErr: true,
},
{
name: "kitchen sink",
json: `
{
"DestinationType": "service",
"DestinationNamespace": "default",
"DestinationName": "bar1",
"Datacenter": "dc1",
"LocalBindAddress": "127.0.0.2",
"LocalBindPort": 6060,
"Config": {
"x": "y",
"z": -2
},
"MeshGateway": {
"Mode": "local"
}
}
`,
jsonSnake: `
{
"destination_type": "service",
"destination_namespace": "default",
"destination_name": "bar1",
"datacenter": "dc1",
"local_bind_address": "127.0.0.2",
"local_bind_port": 6060,
"config": {
"x": "y",
"z": -2
},
"mesh_gateway": {
"mode": "local"
}
}
`,
want: Upstream{
DestinationType: UpstreamDestTypeService,
DestinationNamespace: "default",
DestinationName: "bar1",
Datacenter: "dc1",
LocalBindAddress: "127.0.0.2",
LocalBindPort: 6060,
Config: map[string]interface{}{
"x": "y",
"z": float64(-2),
},
MeshGateway: MeshGatewayConfig{
Mode: "local",
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Run("camel", func(t *testing.T) {
var got Upstream
err := json.Unmarshal([]byte(tt.json), &got)
if tt.wantErr {
require.Error(t, err)
} else {
require.NoError(t, err)
require.Equal(t, tt.want, got, "%+v", got)
}
})
if tt.jsonSnake != "" {
t.Run("snake", func(t *testing.T) {
var got Upstream
err := json.Unmarshal([]byte(tt.jsonSnake), &got)
if tt.wantErr {
require.Error(t, err)
} else {
require.NoError(t, err)
require.Equal(t, tt.want, got)
}
})
}
})
}
}
func TestConnectProxyConfig_UnmarshalJSON(t *testing.T) {
tests := []struct {
name string
json string
jsonSnake string
want ConnectProxyConfig
wantErr bool
}{
{
name: "kitchen sink",
json: `
{
"DestinationServiceName": "foo-name",
"DestinationServiceID": "foo-id",
"LocalServiceAddress": "127.0.0.1",
"LocalServicePort": 5050,
"Config": {
"a": "b",
"v": 42
},
"Upstreams": [
{
"DestinationType": "service",
"DestinationNamespace": "default",
"DestinationName": "bar1",
"Datacenter": "dc1",
"LocalBindAddress": "127.0.0.2",
"LocalBindPort": 6060,
"Config": {
"x": "y",
"z": -2
},
"MeshGateway": {
"Mode": "local"
}
},
{
"DestinationType": "service",
"DestinationNamespace": "default",
"DestinationName": "bar2",
"Datacenter": "dc2",
"LocalBindAddress": "127.0.0.2",
"LocalBindPort": 6161
}
],
"MeshGateway": {
"Mode": "remote"
},
"Expose": {
"Checks": true,
"Paths": [
{
"ListenerPort": 8080,
"Path": "/foo",
"LocalPathPort": 7070,
"Protocol": "http2",
"ParsedFromCheck": true
},
{
"ListenerPort": 8181,
"Path": "/foo2",
"LocalPathPort": 7171,
"Protocol": "http",
"ParsedFromCheck": false
}
]
}
}
`,
jsonSnake: `
{
"destination_service_name": "foo-name",
"destination_service_id": "foo-id",
"local_service_address": "127.0.0.1",
"local_service_port": 5050,
"config": {
"a": "b",
"v": 42
},
"upstreams": [
{
"destination_type": "service",
"destination_namespace": "default",
"destination_name": "bar1",
"datacenter": "dc1",
"local_bind_address": "127.0.0.2",
"local_bind_port": 6060,
"config": {
"x": "y",
"z": -2
},
"mesh_gateway": {
"mode": "local"
}
},
{
"destination_type": "service",
"destination_namespace": "default",
"destination_name": "bar2",
"datacenter": "dc2",
"local_bind_address": "127.0.0.2",
"local_bind_port": 6161
}
],
"mesh_gateway": {
"mode": "remote"
},
"expose": {
"checks": true,
"paths": [
{
"listener_port": 8080,
"path": "/foo",
"local_path_port": 7070,
"protocol": "http2",
"parsed_from_check": true
},
{
"listener_port": 8181,
"path": "/foo2",
"local_path_port": 7171,
"protocol": "http",
"parsed_from_check": false
}
]
}
}
`,
want: ConnectProxyConfig{
DestinationServiceName: "foo-name",
DestinationServiceID: "foo-id",
LocalServiceAddress: "127.0.0.1",
LocalServicePort: 5050,
Config: map[string]interface{}{
"a": "b",
"v": float64(42),
},
Upstreams: []Upstream{
{
DestinationType: UpstreamDestTypeService,
DestinationNamespace: "default",
DestinationName: "bar1",
Datacenter: "dc1",
LocalBindAddress: "127.0.0.2",
LocalBindPort: 6060,
Config: map[string]interface{}{
"x": "y",
"z": float64(-2),
},
MeshGateway: MeshGatewayConfig{
Mode: "local",
},
},
{
DestinationType: UpstreamDestTypeService,
DestinationNamespace: "default",
DestinationName: "bar2",
Datacenter: "dc2",
LocalBindAddress: "127.0.0.2",
LocalBindPort: 6161,
},
},
MeshGateway: MeshGatewayConfig{
Mode: "remote",
},
Expose: ExposeConfig{
Checks: true,
Paths: []ExposePath{
{
ListenerPort: 8080,
Path: "/foo",
LocalPathPort: 7070,
Protocol: "http2",
ParsedFromCheck: true,
},
{
ListenerPort: 8181,
Path: "/foo2",
LocalPathPort: 7171,
Protocol: "http",
ParsedFromCheck: false,
},
},
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Run("camel", func(t *testing.T) {
//
var got ConnectProxyConfig
err := json.Unmarshal([]byte(tt.json), &got)
if tt.wantErr {
require.Error(t, err)
} else {
require.NoError(t, err)
require.Equal(t, tt.want, got)
}
})
if tt.jsonSnake != "" {
t.Run("snake", func(t *testing.T) {
//
var got ConnectProxyConfig
err := json.Unmarshal([]byte(tt.json), &got)
if tt.wantErr {
require.Error(t, err)
} else {
require.NoError(t, err)
require.Equal(t, tt.want, got)
}
})
}
})
}
}
func TestMeshGatewayConfig_OverlayWith(t *testing.T) {
var (
D = MeshGatewayConfig{Mode: MeshGatewayModeDefault}
N = MeshGatewayConfig{Mode: MeshGatewayModeNone}
R = MeshGatewayConfig{Mode: MeshGatewayModeRemote}
L = MeshGatewayConfig{Mode: MeshGatewayModeLocal}
)
type testCase struct {
base, overlay, expect MeshGatewayConfig
}
cases := []testCase{
{D, D, D},
{D, N, N},
{D, R, R},
{D, L, L},
{N, D, N},
{N, N, N},
{N, R, R},
{N, L, L},
{R, D, R},
{R, N, N},
{R, R, R},
{R, L, L},
{L, D, L},
{L, N, N},
{L, R, R},
{L, L, L},
}
for _, tc := range cases {
tc := tc
t.Run(fmt.Sprintf("%s overlaid with %s", tc.base.Mode, tc.overlay.Mode),
func(t *testing.T) {
got := tc.base.OverlayWith(tc.overlay)
require.Equal(t, tc.expect, got)
})
}
}
func TestValidateMeshGatewayMode(t *testing.T) {
for _, tc := range []struct {
modeConstant string
modeExplicit string
expect MeshGatewayMode
ok bool
}{
{string(MeshGatewayModeNone), "none", MeshGatewayModeNone, true},
{string(MeshGatewayModeDefault), "", MeshGatewayModeDefault, true},
{string(MeshGatewayModeLocal), "local", MeshGatewayModeLocal, true},
{string(MeshGatewayModeRemote), "remote", MeshGatewayModeRemote, true},
} {
tc := tc
t.Run(tc.modeConstant+" (constant)", func(t *testing.T) {
got, err := ValidateMeshGatewayMode(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 := ValidateMeshGatewayMode(tc.modeExplicit)
if tc.ok {
require.NoError(t, err)
require.Equal(t, tc.expect, got)
} else {
require.Error(t, err)
}
})
}
}
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)
}
})
}
}