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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/config_entry_gateways_test.go

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package structs
import (
"testing"
"github.com/stretchr/testify/require"
)
func TestIngressGatewayConfigEntry(t *testing.T) {
defaultMeta := DefaultEnterpriseMetaInDefaultPartition()
cases := map[string]configEntryTestcase{
"normalize: empty protocol": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "",
Services: []IngressService{},
},
},
},
expected: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{},
},
},
EnterpriseMeta: *defaultMeta,
},
normalizeOnly: true,
},
"normalize: lowercase protocols": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "TCP",
Services: []IngressService{},
},
{
Port: 1112,
Protocol: "HtTP",
Services: []IngressService{},
},
},
},
expected: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{},
},
{
Port: 1112,
Protocol: "http",
Services: []IngressService{},
},
},
EnterpriseMeta: *defaultMeta,
},
normalizeOnly: true,
},
"port conflict": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "mysql",
},
},
},
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "postgres",
},
},
},
},
},
validateErr: "port 1111 declared on two listeners",
},
"http features: wildcard": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "*",
},
},
},
},
},
},
"http features: wildcard service on invalid protocol": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "*",
},
},
},
},
},
validateErr: "Wildcard service name is only valid for protocol",
},
"http features: multiple services": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "db1",
},
{
Name: "db2",
},
},
},
},
},
},
"http features: multiple services on tcp listener": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "db1",
},
{
Name: "db2",
},
},
},
},
},
validateErr: "Multiple services per listener are only supported for L7",
},
// ==========================
"tcp listener requires a defined service": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{},
},
},
},
validateErr: "No service declared for listener with port 1111",
},
"http listener requires a defined service": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{},
},
},
},
validateErr: "No service declared for listener with port 1111",
},
"empty service name not supported": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{},
},
},
},
},
validateErr: "Service name cannot be blank",
},
"protocol validation": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "asdf",
Services: []IngressService{
{
Name: "db",
},
},
},
},
},
validateErr: "protocol must be 'tcp', 'http', 'http2', or 'grpc'. 'asdf' is an unsupported protocol",
},
"hosts cannot be set on a tcp listener": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "db",
Hosts: []string{"db.example.com"},
},
},
},
},
},
validateErr: "Associating hosts to a service is not supported for the tcp protocol",
},
"hosts cannot be set on a wildcard specifier": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "*",
Hosts: []string{"db.example.com"},
},
},
},
},
},
validateErr: "Associating hosts to a wildcard service is not supported",
},
"hosts must be unique per listener": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "db",
Hosts: []string{"test.example.com"},
},
{
Name: "api",
Hosts: []string{"test.example.com"},
},
},
},
},
},
validateErr: "Hosts must be unique within a specific listener",
},
"hosts must be a valid DNS name": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "db",
Hosts: []string{"example..com"},
},
},
},
},
},
validateErr: `Host "example..com" must be a valid DNS hostname`,
},
"wildcard specifier is only allowed in the leftmost label": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "db",
Hosts: []string{"*.example.com"},
},
},
},
},
},
},
"wildcard specifier is not allowed in non-leftmost labels": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "db",
Hosts: []string{"example.*.com"},
},
},
},
},
},
validateErr: `Host "example.*.com" is not valid, a wildcard specifier is only allowed as the leftmost label`,
},
"wildcard specifier is not allowed in leftmost labels as a partial": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "db",
Hosts: []string{"*-test.example.com"},
},
},
},
},
},
validateErr: `Host "*-test.example.com" is not valid, a wildcard specifier is only allowed as the leftmost label`,
},
"wildcard specifier is allowed for hosts when TLS is disabled": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "db",
Hosts: []string{"*"},
},
},
},
},
},
},
"wildcard specifier is not allowed for hosts when TLS is enabled": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
TLS: GatewayTLSConfig{
Enabled: true,
},
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "db",
Hosts: []string{"*"},
},
},
},
},
},
validateErr: `Host '*' is not allowed when TLS is enabled, all hosts must be valid DNS records to add as a DNSSAN`,
},
"request header manip allowed for http(ish) protocol": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "web",
RequestHeaders: &HTTPHeaderModifiers{
Set: map[string]string{"x-foo": "bar"},
},
},
},
},
{
Port: 2222,
Protocol: "http2",
Services: []IngressService{
{
Name: "web2",
ResponseHeaders: &HTTPHeaderModifiers{
Set: map[string]string{"x-foo": "bar"},
},
},
},
},
{
Port: 3333,
Protocol: "grpc",
Services: []IngressService{
{
Name: "api",
ResponseHeaders: &HTTPHeaderModifiers{
Remove: []string{"x-grpc-internal"},
},
},
},
},
},
},
expectUnchanged: true,
},
"request header manip not allowed for non-http protocol": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "db",
RequestHeaders: &HTTPHeaderModifiers{
Set: map[string]string{"x-foo": "bar"},
},
},
},
},
},
},
validateErr: "request headers only valid for http",
},
"response header manip not allowed for non-http protocol": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "db",
ResponseHeaders: &HTTPHeaderModifiers{
Remove: []string{"x-foo"},
},
},
},
},
},
},
validateErr: "response headers only valid for http",
},
"duplicate services not allowed": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "web",
},
{
Name: "web",
},
},
},
},
},
// Match only the last part of the exected error because the service name
// differs between Ent and OSS default/default/web vs web
validateErr: "cannot be added multiple times (listener on port 1111)",
},
"TLS.SDS kitchen sink": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
TLS: GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "secret-service1",
CertResource: "some-ns/ingress-default",
},
},
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
TLS: &GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "secret-service2",
CertResource: "some-ns/ingress-1111",
},
},
Services: []IngressService{
{
Name: "web",
Hosts: []string{"*"},
TLS: &GatewayServiceTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "secret-service3",
CertResource: "some-ns/web",
},
},
},
},
},
},
},
},
"TLS.SDS gateway-level": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
TLS: GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "secret-service1",
CertResource: "some-ns/ingress-default",
},
},
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "db",
},
},
},
},
},
expectUnchanged: true,
},
"TLS.SDS listener-level": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
TLS: &GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "secret-service1",
CertResource: "some-ns/db1",
},
},
Services: []IngressService{
{
Name: "db1",
},
},
},
{
Port: 2222,
Protocol: "tcp",
TLS: &GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "secret-service2",
CertResource: "some-ns/db2",
},
},
Services: []IngressService{
{
Name: "db2",
},
},
},
},
},
expectUnchanged: true,
},
"TLS.SDS gateway-level cluster only": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
TLS: GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "secret-service",
},
},
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
TLS: &GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
CertResource: "some-ns/db1",
},
},
Services: []IngressService{
{
Name: "db1",
},
},
},
{
Port: 2222,
Protocol: "tcp",
TLS: &GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
CertResource: "some-ns/db2",
},
},
Services: []IngressService{
{
Name: "db2",
},
},
},
},
},
expectUnchanged: true,
},
"TLS.SDS mixed TLS and non-TLS listeners": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
// No Gateway level TLS.Enabled or SDS config
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
TLS: &GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "sds-cluster",
CertResource: "some-ns/db1",
},
},
Services: []IngressService{
{
Name: "db1",
},
},
},
{
Port: 2222,
Protocol: "tcp",
// No TLS config
Services: []IngressService{
{
Name: "db2",
},
},
},
},
},
expectUnchanged: true,
},
"TLS.SDS only service-level mixed": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
// No Gateway level TLS.Enabled or SDS config
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
// No TLS config
Services: []IngressService{
{
Name: "web",
Hosts: []string{"www.example.com"},
TLS: &GatewayServiceTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "sds-cluster",
CertResource: "web-cert",
},
},
},
{
Name: "api",
Hosts: []string{"api.example.com"},
TLS: &GatewayServiceTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "sds-cluster",
CertResource: "api-cert",
},
},
},
},
},
{
Port: 2222,
Protocol: "http",
// No TLS config
Services: []IngressService{
{
Name: "db2",
},
},
},
},
},
expectUnchanged: true,
},
"TLS.SDS requires cluster if gateway-level cert specified": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
TLS: GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
CertResource: "foo",
},
},
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "db",
},
},
},
},
},
validateErr: "TLS.SDS.ClusterName is required if CertResource is set",
},
"TLS.SDS listener requires cluster if there is no gateway-level one": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
TLS: &GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
CertResource: "foo",
},
},
Services: []IngressService{
{
Name: "db",
},
},
},
},
},
validateErr: "TLS.SDS.ClusterName is required if CertResource is set",
},
"TLS.SDS listener requires a cert resource if gw ClusterName set": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
TLS: GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "foo",
},
},
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{
Name: "db",
},
},
},
},
},
validateErr: "TLS.SDS.CertResource is required if ClusterName is set for gateway (listener on port 1111)",
},
"TLS.SDS listener requires a cert resource if listener ClusterName set": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
TLS: &GatewayTLSConfig{
SDS: &GatewayTLSSDSConfig{
ClusterName: "foo",
},
},
Services: []IngressService{
{
Name: "db",
},
},
},
},
},
validateErr: "TLS.SDS.CertResource is required if ClusterName is set for listener (listener on port 1111)",
},
"TLS.SDS at service level is not supported without Hosts set": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "*",
TLS: &GatewayServiceTLSConfig{
SDS: &GatewayTLSSDSConfig{
CertResource: "foo",
ClusterName: "sds-cluster",
},
},
},
},
},
},
},
// Note we don't assert the last part `(service \"*\" on listener on port 1111)`
// since the service name is normalized differently on OSS and Ent
validateErr: "A service specifying TLS.SDS.CertResource must have at least one item in Hosts",
},
"TLS.SDS at service level needs a cluster from somewhere": {
entry: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "http",
Services: []IngressService{
{
Name: "foo",
Hosts: []string{"foo.example.com"},
TLS: &GatewayServiceTLSConfig{
SDS: &GatewayTLSSDSConfig{
CertResource: "foo",
},
},
},
},
},
},
},
// Note we don't assert the last part `(service \"foo\" on listener on port 1111)`
// since the service name is normalized differently on OSS and Ent
validateErr: "TLS.SDS.ClusterName is required if CertResource is set",
},
}
testConfigEntryNormalizeAndValidate(t, cases)
}
func TestIngressConfigEntry_ListRelatedServices(t *testing.T) {
type testcase struct {
entry IngressGatewayConfigEntry
expectServices []ServiceID
}
cases := map[string]testcase{
"one exact": {
entry: IngressGatewayConfigEntry{
Kind: IngressGateway,
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{Name: "web"},
},
},
},
},
expectServices: []ServiceID{NewServiceID("web", nil)},
},
"one wild": {
entry: IngressGatewayConfigEntry{
Kind: IngressGateway,
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{Name: "*"},
},
},
},
},
expectServices: nil,
},
"kitchen sink": {
entry: IngressGatewayConfigEntry{
Kind: IngressGateway,
Name: "ingress-web",
Listeners: []IngressListener{
{
Port: 1111,
Protocol: "tcp",
Services: []IngressService{
{Name: "api"},
{Name: "web"},
},
},
{
Port: 2222,
Protocol: "tcp",
Services: []IngressService{
{Name: "web"},
{Name: "*"},
{Name: "db"},
{Name: "blah"},
},
},
},
},
expectServices: []ServiceID{
NewServiceID("api", nil),
NewServiceID("blah", nil),
NewServiceID("db", nil),
NewServiceID("web", nil),
},
},
}
for name, tc := range cases {
tc := tc
t.Run(name, func(t *testing.T) {
got := tc.entry.ListRelatedServices()
require.Equal(t, tc.expectServices, got)
})
}
}
func TestTerminatingGatewayConfigEntry(t *testing.T) {
cases := map[string]configEntryTestcase{
"service conflict": {
entry: &TerminatingGatewayConfigEntry{
Kind: "terminating-gateway",
Name: "terminating-gw-west",
Services: []LinkedService{
{
Name: "foo",
},
{
Name: "foo",
},
},
},
validateErr: "specified more than once",
},
"blank service name": {
entry: &TerminatingGatewayConfigEntry{
Kind: "terminating-gateway",
Name: "terminating-gw-west",
Services: []LinkedService{
{
Name: "",
},
},
},
validateErr: "Service name cannot be blank.",
},
"not all TLS options provided-1": {
entry: &TerminatingGatewayConfigEntry{
Kind: "terminating-gateway",
Name: "terminating-gw-west",
Services: []LinkedService{
{
Name: "web",
CertFile: "client.crt",
},
},
},
validateErr: "must have a CertFile, CAFile, and KeyFile",
},
"not all TLS options provided-2": {
entry: &TerminatingGatewayConfigEntry{
Kind: "terminating-gateway",
Name: "terminating-gw-west",
Services: []LinkedService{
{
Name: "web",
KeyFile: "tls.key",
},
},
},
validateErr: "must have a CertFile, CAFile, and KeyFile",
},
"all TLS options provided": {
entry: &TerminatingGatewayConfigEntry{
Kind: "terminating-gateway",
Name: "terminating-gw-west",
Services: []LinkedService{
{
Name: "web",
CAFile: "ca.crt",
CertFile: "client.crt",
KeyFile: "tls.key",
},
},
},
},
"only providing ca file is allowed": {
entry: &TerminatingGatewayConfigEntry{
Kind: "terminating-gateway",
Name: "terminating-gw-west",
Services: []LinkedService{
{
Name: "web",
CAFile: "ca.crt",
},
},
},
},
}
testConfigEntryNormalizeAndValidate(t, cases)
}
func TestGatewayService_Addresses(t *testing.T) {
cases := []struct {
name string
input GatewayService
argument []string
expected []string
}{
{
name: "port is zero",
input: GatewayService{},
expected: nil,
},
{
name: "no hosts with empty array",
input: GatewayService{
Port: 8080,
},
expected: nil,
},
{
name: "no hosts with default",
input: GatewayService{
Port: 8080,
},
argument: []string{
"service.ingress.dc.domain",
"service.ingress.dc.alt.domain",
"service.ingress.dc.alt.domain.",
},
expected: []string{
"service.ingress.dc.domain:8080",
"service.ingress.dc.alt.domain:8080",
"service.ingress.dc.alt.domain:8080",
},
},
{
name: "user-defined hosts",
input: GatewayService{
Port: 8080,
Hosts: []string{"*.test.example.com", "other.example.com", "other.example.com."},
},
argument: []string{
"service.ingress.dc.domain",
"service.ingress.alt.domain",
},
expected: []string{"*.test.example.com:8080", "other.example.com:8080", "other.example.com:8080"},
},
}
for _, tc := range cases {
t.Run(tc.name, func(t *testing.T) {
addresses := tc.input.Addresses(tc.argument)
require.ElementsMatch(t, tc.expected, addresses)
})
}
}