Consul is a distributed, highly available, and data center aware solution to connect and configure applications across dynamic, distributed infrastructure.
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package structs
import (
"bytes"
"strings"
"testing"
"time"
"github.com/hashicorp/go-msgpack/codec"
"github.com/hashicorp/hcl"
"github.com/stretchr/testify/require"
)
// TestDecodeConfigEntry is the 'structs' mirror image of
// command/config/write/config_write_test.go:TestParseConfigEntry
func TestDecodeConfigEntry(t *testing.T) {
for _, tc := range []struct {
name string
camel string
snake string
expect ConfigEntry
expectErr string
}{
// TODO(rb): test json?
{
name: "proxy-defaults: extra fields or typo",
snake: `
kind = "proxy-defaults"
name = "main"
cornfig {
"foo" = 19
}
`,
camel: `
Kind = "proxy-defaults"
Name = "main"
Cornfig {
"foo" = 19
}
`,
expectErr: `invalid config key "cornfig"`,
},
{
name: "proxy-defaults",
snake: `
kind = "proxy-defaults"
name = "main"
config {
"foo" = 19
"bar" = "abc"
"moreconfig" {
"moar" = "config"
}
}
mesh_gateway {
mode = "remote"
}
`,
camel: `
Kind = "proxy-defaults"
Name = "main"
Config {
"foo" = 19
"bar" = "abc"
"moreconfig" {
"moar" = "config"
}
}
MeshGateway {
Mode = "remote"
}
`,
expect: &ProxyConfigEntry{
Kind: "proxy-defaults",
Name: "main",
Config: map[string]interface{}{
"foo": 19,
"bar": "abc",
"moreconfig": map[string]interface{}{
"moar": "config",
},
},
MeshGateway: MeshGatewayConfig{
Mode: MeshGatewayModeRemote,
},
},
},
{
name: "service-defaults",
snake: `
kind = "service-defaults"
name = "main"
protocol = "http"
external_sni = "abc-123"
mesh_gateway {
mode = "remote"
}
`,
camel: `
Kind = "service-defaults"
Name = "main"
Protocol = "http"
ExternalSNI = "abc-123"
MeshGateway {
Mode = "remote"
}
`,
expect: &ServiceConfigEntry{
Kind: "service-defaults",
Name: "main",
Protocol: "http",
ExternalSNI: "abc-123",
MeshGateway: MeshGatewayConfig{
Mode: MeshGatewayModeRemote,
},
},
},
{
name: "service-router: kitchen sink",
snake: `
kind = "service-router"
name = "main"
routes = [
{
match {
http {
path_exact = "/foo"
header = [
{
name = "debug1"
present = true
},
{
name = "debug2"
present = false
invert = true
},
{
name = "debug3"
exact = "1"
},
{
name = "debug4"
prefix = "aaa"
},
{
name = "debug5"
suffix = "bbb"
},
{
name = "debug6"
regex = "a.*z"
},
]
}
}
destination {
service = "carrot"
service_subset = "kale"
namespace = "leek"
prefix_rewrite = "/alternate"
request_timeout = "99s"
num_retries = 12345
retry_on_connect_failure = true
retry_on_status_codes = [401, 209]
}
},
{
match {
http {
path_prefix = "/foo"
methods = [ "GET", "DELETE" ]
query_param = [
{
name = "hack1"
present = true
},
{
name = "hack2"
exact = "1"
},
{
name = "hack3"
regex = "a.*z"
},
]
}
}
},
{
match {
http {
path_regex = "/foo"
}
}
},
]
`,
camel: `
Kind = "service-router"
Name = "main"
Routes = [
{
Match {
HTTP {
PathExact = "/foo"
Header = [
{
Name = "debug1"
Present = true
},
{
Name = "debug2"
Present = false
Invert = true
},
{
Name = "debug3"
Exact = "1"
},
{
Name = "debug4"
Prefix = "aaa"
},
{
Name = "debug5"
Suffix = "bbb"
},
{
Name = "debug6"
Regex = "a.*z"
},
]
}
}
Destination {
Service = "carrot"
ServiceSubset = "kale"
Namespace = "leek"
PrefixRewrite = "/alternate"
RequestTimeout = "99s"
NumRetries = 12345
RetryOnConnectFailure = true
RetryOnStatusCodes = [401, 209]
}
},
{
Match {
HTTP {
PathPrefix = "/foo"
Methods = [ "GET", "DELETE" ]
QueryParam = [
{
Name = "hack1"
Present = true
},
{
Name = "hack2"
Exact = "1"
},
{
Name = "hack3"
Regex = "a.*z"
},
]
}
}
},
{
Match {
HTTP {
PathRegex = "/foo"
}
}
},
]
`,
expect: &ServiceRouterConfigEntry{
Kind: "service-router",
Name: "main",
Routes: []ServiceRoute{
{
Match: &ServiceRouteMatch{
HTTP: &ServiceRouteHTTPMatch{
PathExact: "/foo",
Header: []ServiceRouteHTTPMatchHeader{
{
Name: "debug1",
Present: true,
},
{
Name: "debug2",
Present: false,
Invert: true,
},
{
Name: "debug3",
Exact: "1",
},
{
Name: "debug4",
Prefix: "aaa",
},
{
Name: "debug5",
Suffix: "bbb",
},
{
Name: "debug6",
Regex: "a.*z",
},
},
},
},
Destination: &ServiceRouteDestination{
Service: "carrot",
ServiceSubset: "kale",
Namespace: "leek",
PrefixRewrite: "/alternate",
RequestTimeout: 99 * time.Second,
NumRetries: 12345,
RetryOnConnectFailure: true,
RetryOnStatusCodes: []uint32{401, 209},
},
},
{
Match: &ServiceRouteMatch{
HTTP: &ServiceRouteHTTPMatch{
PathPrefix: "/foo",
Methods: []string{"GET", "DELETE"},
QueryParam: []ServiceRouteHTTPMatchQueryParam{
{
Name: "hack1",
Present: true,
},
{
Name: "hack2",
Exact: "1",
},
{
Name: "hack3",
Regex: "a.*z",
},
},
},
},
},
{
Match: &ServiceRouteMatch{
HTTP: &ServiceRouteHTTPMatch{
PathRegex: "/foo",
},
},
},
},
},
},
{
name: "service-splitter: kitchen sink",
snake: `
kind = "service-splitter"
name = "main"
splits = [
{
weight = 99.1
service_subset = "v1"
},
{
weight = 0.9
service = "other"
namespace = "alt"
},
]
`,
camel: `
Kind = "service-splitter"
Name = "main"
Splits = [
{
Weight = 99.1
ServiceSubset = "v1"
},
{
Weight = 0.9
Service = "other"
Namespace = "alt"
},
]
`,
expect: &ServiceSplitterConfigEntry{
Kind: ServiceSplitter,
Name: "main",
Splits: []ServiceSplit{
{
Weight: 99.1,
ServiceSubset: "v1",
},
{
Weight: 0.9,
Service: "other",
Namespace: "alt",
},
},
},
},
{
name: "service-resolver: subsets with failover",
snake: `
kind = "service-resolver"
name = "main"
default_subset = "v1"
connect_timeout = "15s"
subsets = {
"v1" = {
filter = "Service.Meta.version == v1"
},
"v2" = {
filter = "Service.Meta.version == v2"
only_passing = true
},
}
failover = {
"v2" = {
service = "failcopy"
service_subset = "sure"
namespace = "neighbor"
datacenters = ["dc5", "dc14"]
},
"*" = {
datacenters = ["dc7"]
}
}`,
camel: `
Kind = "service-resolver"
Name = "main"
DefaultSubset = "v1"
ConnectTimeout = "15s"
Subsets = {
"v1" = {
Filter = "Service.Meta.version == v1"
},
"v2" = {
Filter = "Service.Meta.version == v2"
OnlyPassing = true
},
}
Failover = {
"v2" = {
Service = "failcopy"
ServiceSubset = "sure"
Namespace = "neighbor"
Datacenters = ["dc5", "dc14"]
},
"*" = {
Datacenters = ["dc7"]
}
}`,
expect: &ServiceResolverConfigEntry{
Kind: "service-resolver",
Name: "main",
DefaultSubset: "v1",
ConnectTimeout: 15 * time.Second,
Subsets: map[string]ServiceResolverSubset{
"v1": {
Filter: "Service.Meta.version == v1",
},
"v2": {
Filter: "Service.Meta.version == v2",
OnlyPassing: true,
},
},
Failover: map[string]ServiceResolverFailover{
"v2": {
Service: "failcopy",
ServiceSubset: "sure",
Namespace: "neighbor",
Datacenters: []string{"dc5", "dc14"},
},
"*": {
Datacenters: []string{"dc7"},
},
},
},
},
{
name: "service-resolver: redirect",
snake: `
kind = "service-resolver"
name = "main"
redirect {
service = "other"
service_subset = "backup"
namespace = "alt"
datacenter = "dc9"
}
`,
camel: `
Kind = "service-resolver"
Name = "main"
Redirect {
Service = "other"
ServiceSubset = "backup"
Namespace = "alt"
Datacenter = "dc9"
}
`,
expect: &ServiceResolverConfigEntry{
Kind: "service-resolver",
Name: "main",
Redirect: &ServiceResolverRedirect{
Service: "other",
ServiceSubset: "backup",
Namespace: "alt",
Datacenter: "dc9",
},
},
},
{
name: "service-resolver: default",
snake: `
kind = "service-resolver"
name = "main"
`,
camel: `
Kind = "service-resolver"
Name = "main"
`,
expect: &ServiceResolverConfigEntry{
Kind: "service-resolver",
Name: "main",
},
},
{
name: "ingress-gateway: kitchen sink",
snake: `
kind = "ingress-gateway"
name = "ingress-web"
tls {
enabled = true
}
listeners = [
{
port = 8080
protocol = "http"
services = [
{
name = "web"
hosts = ["test.example.com", "test2.example.com"]
},
{
name = "db"
}
]
},
{
port = 9999
protocol = "tcp"
services = [
{
name = "mysql"
}
]
},
{
port = 2234
protocol = "tcp"
services = [
{
name = "postgres"
}
]
}
]
`,
camel: `
Kind = "ingress-gateway"
Name = "ingress-web"
TLS {
Enabled = true
}
Listeners = [
{
Port = 8080
Protocol = "http"
Services = [
{
Name = "web"
Hosts = ["test.example.com", "test2.example.com"]
},
{
Name = "db"
}
]
},
{
Port = 9999
Protocol = "tcp"
Services = [
{
Name = "mysql"
}
]
},
{
Port = 2234
Protocol = "tcp"
Services = [
{
Name = "postgres"
}
]
}
]
`,
expect: &IngressGatewayConfigEntry{
Kind: "ingress-gateway",
Name: "ingress-web",
TLS: GatewayTLSConfig{
Enabled: true,
},
Listeners: []IngressListener{
IngressListener{
Port: 8080,
Protocol: "http",
Services: []IngressService{
IngressService{
Name: "web",
Hosts: []string{"test.example.com", "test2.example.com"},
},
IngressService{
Name: "db",
},
},
},
IngressListener{
Port: 9999,
Protocol: "tcp",
Services: []IngressService{
IngressService{
Name: "mysql",
},
},
},
IngressListener{
Port: 2234,
Protocol: "tcp",
Services: []IngressService{
IngressService{
Name: "postgres",
},
},
},
},
},
},
{
name: "terminating-gateway: kitchen sink",
snake: `
kind = "terminating-gateway"
name = "terminating-gw-west"
services = [
{
name = "payments",
ca_file = "/etc/payments/ca.pem",
cert_file = "/etc/payments/cert.pem",
key_file = "/etc/payments/tls.key",
sni = "mydomain",
},
{
name = "*",
ca_file = "/etc/all/ca.pem",
cert_file = "/etc/all/cert.pem",
key_file = "/etc/all/tls.key",
sni = "my-alt-domain",
},
]
`,
camel: `
Kind = "terminating-gateway"
Name = "terminating-gw-west"
Services = [
{
Name = "payments",
CAFile = "/etc/payments/ca.pem",
CertFile = "/etc/payments/cert.pem",
KeyFile = "/etc/payments/tls.key",
SNI = "mydomain",
},
{
Name = "*",
CAFile = "/etc/all/ca.pem",
CertFile = "/etc/all/cert.pem",
KeyFile = "/etc/all/tls.key",
SNI = "my-alt-domain",
},
]
`,
expect: &TerminatingGatewayConfigEntry{
Kind: "terminating-gateway",
Name: "terminating-gw-west",
Services: []LinkedService{
{
Name: "payments",
CAFile: "/etc/payments/ca.pem",
CertFile: "/etc/payments/cert.pem",
KeyFile: "/etc/payments/tls.key",
SNI: "mydomain",
},
{
Name: "*",
CAFile: "/etc/all/ca.pem",
CertFile: "/etc/all/cert.pem",
KeyFile: "/etc/all/tls.key",
SNI: "my-alt-domain",
},
},
},
},
} {
tc := tc
testbody := func(t *testing.T, body string) {
t.Helper()
var raw map[string]interface{}
err := hcl.Decode(&raw, body)
require.NoError(t, err)
got, err := DecodeConfigEntry(raw)
if tc.expectErr != "" {
require.Nil(t, got)
require.Error(t, err)
requireContainsLower(t, err.Error(), tc.expectErr)
} else {
require.NoError(t, err)
require.Equal(t, tc.expect, got)
}
}
t.Run(tc.name+" (snake case)", func(t *testing.T) {
testbody(t, tc.snake)
})
t.Run(tc.name+" (camel case)", func(t *testing.T) {
testbody(t, tc.camel)
})
}
}
func TestServiceConfigResponse_MsgPack(t *testing.T) {
// TODO(banks) lib.MapWalker doesn't actually fix the map[interface{}] issue
// it claims to in docs yet. When it does uncomment those cases below.
a := ServiceConfigResponse{
ProxyConfig: map[string]interface{}{
"string": "foo",
// "map": map[string]interface{}{
// "baz": "bar",
// },
},
UpstreamConfigs: map[string]map[string]interface{}{
"a": map[string]interface{}{
"string": "aaaa",
// "map": map[string]interface{}{
// "baz": "aa",
// },
},
"b": map[string]interface{}{
"string": "bbbb",
// "map": map[string]interface{}{
// "baz": "bb",
// },
},
},
}
var buf bytes.Buffer
// Encode as msgPack using a regular handle i.e. NOT one with RawAsString
// since our RPC codec doesn't use that.
enc := codec.NewEncoder(&buf, MsgpackHandle)
require.NoError(t, enc.Encode(&a))
var b ServiceConfigResponse
dec := codec.NewDecoder(&buf, MsgpackHandle)
require.NoError(t, dec.Decode(&b))
require.Equal(t, a, b)
}
func TestConfigEntryResponseMarshalling(t *testing.T) {
cases := map[string]ConfigEntryResponse{
"nil entry": ConfigEntryResponse{},
"proxy-default entry": ConfigEntryResponse{
Entry: &ProxyConfigEntry{
Kind: ProxyDefaults,
Name: ProxyConfigGlobal,
Config: map[string]interface{}{
"foo": "bar",
},
},
},
"service-default entry": ConfigEntryResponse{
Entry: &ServiceConfigEntry{
Kind: ServiceDefaults,
Name: "foo",
Protocol: "tcp",
// Connect: ConnectConfiguration{SideCarProxy: true},
},
},
}
for name, tcase := range cases {
name := name
tcase := tcase
t.Run(name, func(t *testing.T) {
data, err := tcase.MarshalBinary()
require.NoError(t, err)
require.NotEmpty(t, data)
var resp ConfigEntryResponse
require.NoError(t, resp.UnmarshalBinary(data))
require.Equal(t, tcase, resp)
})
}
}
func requireContainsLower(t *testing.T, haystack, needle string) {
t.Helper()
require.Contains(t, strings.ToLower(haystack), strings.ToLower(needle))
}