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open-consul/agent/consul/merge_service_config_test.go

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package consul
import (
"testing"
"github.com/hashicorp/consul/agent/structs"
"github.com/mitchellh/copystructure"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
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,
DialedDirectly: true,
},
},
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,
DialedDirectly: true,
},
},
},
},
{
name: "override transparent proxy settings",
args: args{
defaults: &structs.ServiceConfigResponse{
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
DialedDirectly: false,
},
},
service: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeDirect,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 808,
DialedDirectly: true,
},
},
},
},
want: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeDirect,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 808,
DialedDirectly: true,
},
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
defaultsCopy, err := copystructure.Copy(tt.args.defaults)
require.NoError(t, err)
got, err := MergeServiceConfig(tt.args.defaults, tt.args.service)
require.NoError(t, err)
assert.Equal(t, tt.want, got)
// The input defaults must not be modified by the merge.
// See PR #10647
assert.Equal(t, tt.args.defaults, defaultsCopy)
})
}
}
func Test_MergeServiceConfig_UpstreamOverrides(t *testing.T) {
type args struct {
defaults *structs.ServiceConfigResponse
service *structs.NodeService
}
tests := []struct {
name string
args args
want *structs.NodeService
}{
{
name: "new config fields",
args: args{
defaults: &structs.ServiceConfigResponse{
UpstreamIDConfigs: structs.OpaqueUpstreamConfigs{
{
Upstream: structs.ServiceID{
ID: "zap",
EnterpriseMeta: *structs.DefaultEnterpriseMetaInDefaultPartition(),
},
Config: map[string]interface{}{
"passive_health_check": map[string]interface{}{
"Interval": int64(10),
"MaxFailures": int64(2),
},
"mesh_gateway": map[string]interface{}{
"Mode": "local",
},
"protocol": "grpc",
},
},
},
},
service: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zap",
},
},
},
},
},
want: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zap",
Config: map[string]interface{}{
"passive_health_check": map[string]interface{}{
"Interval": int64(10),
"MaxFailures": int64(2),
},
"protocol": "grpc",
},
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeLocal,
},
},
},
},
},
},
{
name: "remote upstream config expands local upstream list in transparent mode",
args: args{
defaults: &structs.ServiceConfigResponse{
UpstreamIDConfigs: structs.OpaqueUpstreamConfigs{
{
Upstream: structs.ServiceID{
ID: "zap",
EnterpriseMeta: *structs.DefaultEnterpriseMetaInDefaultPartition(),
},
Config: map[string]interface{}{
"protocol": "grpc",
},
},
},
},
service: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
DialedDirectly: true,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zip",
LocalBindPort: 8080,
Config: map[string]interface{}{
"protocol": "http",
},
},
},
},
},
},
want: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeTransparent,
TransparentProxy: structs.TransparentProxyConfig{
OutboundListenerPort: 10101,
DialedDirectly: true,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zip",
LocalBindPort: 8080,
Config: map[string]interface{}{
"protocol": "http",
},
},
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zap",
Config: map[string]interface{}{
"protocol": "grpc",
},
CentrallyConfigured: true,
},
},
},
},
},
{
name: "remote upstream config not added to local upstream list outside of transparent mode",
args: args{
defaults: &structs.ServiceConfigResponse{
UpstreamIDConfigs: structs.OpaqueUpstreamConfigs{
{
Upstream: structs.ServiceID{
ID: "zap",
EnterpriseMeta: *structs.DefaultEnterpriseMetaInDefaultPartition(),
},
Config: map[string]interface{}{
"protocol": "grpc",
},
},
},
},
service: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeDirect,
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zip",
LocalBindPort: 8080,
Config: map[string]interface{}{
"protocol": "http",
},
},
},
},
},
},
want: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
Mode: structs.ProxyModeDirect,
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zip",
LocalBindPort: 8080,
Config: map[string]interface{}{
"protocol": "http",
},
},
},
},
},
},
{
name: "upstream mode from remote defaults overrides local default",
args: args{
defaults: &structs.ServiceConfigResponse{
UpstreamIDConfigs: structs.OpaqueUpstreamConfigs{
{
Upstream: structs.ServiceID{
ID: "zap",
EnterpriseMeta: *structs.DefaultEnterpriseMetaInDefaultPartition(),
},
Config: map[string]interface{}{
"mesh_gateway": map[string]interface{}{
"Mode": "local",
},
},
},
},
},
service: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeRemote,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zap",
},
},
},
},
},
want: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeRemote,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zap",
Config: map[string]interface{}{},
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeLocal,
},
},
},
},
},
},
{
name: "mode in local upstream config overrides all",
args: args{
defaults: &structs.ServiceConfigResponse{
UpstreamIDConfigs: structs.OpaqueUpstreamConfigs{
{
Upstream: structs.ServiceID{
ID: "zap",
EnterpriseMeta: *structs.DefaultEnterpriseMetaInDefaultPartition(),
},
Config: map[string]interface{}{
"mesh_gateway": map[string]interface{}{
"Mode": "local",
},
},
},
},
},
service: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeRemote,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zap",
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeNone,
},
},
},
},
},
},
want: &structs.NodeService{
ID: "foo-proxy",
Service: "foo-proxy",
Proxy: structs.ConnectProxyConfig{
DestinationServiceName: "foo",
DestinationServiceID: "foo",
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeRemote,
},
Upstreams: structs.Upstreams{
structs.Upstream{
DestinationNamespace: "default",
DestinationPartition: "default",
DestinationName: "zap",
Config: map[string]interface{}{},
MeshGateway: structs.MeshGatewayConfig{
Mode: structs.MeshGatewayModeNone,
},
},
},
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
defaultsCopy, err := copystructure.Copy(tt.args.defaults)
require.NoError(t, err)
got, err := MergeServiceConfig(tt.args.defaults, tt.args.service)
require.NoError(t, err)
assert.Equal(t, tt.want, got)
// The input defaults must not be modified by the merge.
// See PR #10647
assert.Equal(t, tt.args.defaults, defaultsCopy)
})
}
}
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