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traefik/provider/consul/consul_catalog_test.go

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package consul
import (
"reflect"
"sort"
"testing"
"text/template"
"github.com/BurntSushi/ty/fun"
"github.com/containous/traefik/types"
"github.com/hashicorp/consul/api"
)
func TestConsulCatalogGetFrontendRule(t *testing.T) {
provider := &CatalogProvider{
Domain: "localhost",
Prefix: "traefik",
FrontEndRule: "Host:{{.ServiceName}}.{{.Domain}}",
frontEndRuleTemplate: template.New("consul catalog frontend rule"),
}
provider.setupFrontEndTemplate()
services := []struct {
service serviceUpdate
expected string
}{
{
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{},
},
expected: "Host:foo.localhost",
},
{
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=Host:*.example.com",
},
},
expected: "Host:*.example.com",
},
{
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=Host:{{.ServiceName}}.example.com",
},
},
expected: "Host:foo.example.com",
},
{
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=PathPrefix:{{getTag \"contextPath\" .Attributes \"/\"}}",
"contextPath=/bar",
},
},
expected: "PathPrefix:/bar",
},
}
for _, e := range services {
actual := provider.getFrontendRule(e.service)
if actual != e.expected {
t.Fatalf("expected %s, got %s", e.expected, actual)
}
}
}
func TestConsulCatalogGetTag(t *testing.T) {
provider := &CatalogProvider{
Domain: "localhost",
Prefix: "traefik",
}
services := []struct {
tags []string
key string
defaultValue string
expected string
}{
{
tags: []string{
"foo.bar=random",
"traefik.backend.weight=42",
"management",
},
key: "foo.bar",
defaultValue: "0",
expected: "random",
},
}
actual := provider.hasTag("management", []string{"management"})
if !actual {
t.Fatalf("expected %v, got %v", true, actual)
}
actual = provider.hasTag("management", []string{"management=yes"})
if !actual {
t.Fatalf("expected %v, got %v", true, actual)
}
for _, e := range services {
actual := provider.getTag(e.key, e.tags, e.defaultValue)
if actual != e.expected {
t.Fatalf("expected %s, got %s", e.expected, actual)
}
}
}
func TestConsulCatalogGetAttribute(t *testing.T) {
provider := &CatalogProvider{
Domain: "localhost",
Prefix: "traefik",
}
services := []struct {
tags []string
key string
defaultValue string
expected string
}{
{
tags: []string{
"foo.bar=ramdom",
"traefik.backend.weight=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "42",
},
{
tags: []string{
"foo.bar=ramdom",
"traefik.backend.wei=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "0",
},
}
expected := provider.Prefix + ".foo"
actual := provider.getPrefixedName("foo")
if actual != expected {
t.Fatalf("expected %s, got %s", expected, actual)
}
for _, e := range services {
actual := provider.getAttribute(e.key, e.tags, e.defaultValue)
if actual != e.expected {
t.Fatalf("expected %s, got %s", e.expected, actual)
}
}
}
func TestConsulCatalogGetAttributeWithEmptyPrefix(t *testing.T) {
provider := &CatalogProvider{
Domain: "localhost",
Prefix: "",
}
services := []struct {
tags []string
key string
defaultValue string
expected string
}{
{
tags: []string{
"foo.bar=ramdom",
"backend.weight=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "42",
},
{
tags: []string{
"foo.bar=ramdom",
"backend.wei=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "0",
},
{
tags: []string{
"foo.bar=ramdom",
"backend.wei=42",
},
key: "foo.bar",
defaultValue: "random",
expected: "ramdom",
},
}
expected := "foo"
actual := provider.getPrefixedName("foo")
if actual != expected {
t.Fatalf("expected %s, got %s", expected, actual)
}
for _, e := range services {
actual := provider.getAttribute(e.key, e.tags, e.defaultValue)
if actual != e.expected {
t.Fatalf("expected %s, got %s", e.expected, actual)
}
}
}
func TestConsulCatalogGetBackendAddress(t *testing.T) {
provider := &CatalogProvider{
Domain: "localhost",
Prefix: "traefik",
}
services := []struct {
node *api.ServiceEntry
expected string
}{
{
node: &api.ServiceEntry{
Node: &api.Node{
Address: "10.1.0.1",
},
Service: &api.AgentService{
Address: "10.2.0.1",
},
},
expected: "10.2.0.1",
},
{
node: &api.ServiceEntry{
Node: &api.Node{
Address: "10.1.0.1",
},
Service: &api.AgentService{
Address: "",
},
},
expected: "10.1.0.1",
},
}
for _, e := range services {
actual := provider.getBackendAddress(e.node)
if actual != e.expected {
t.Fatalf("expected %s, got %s", e.expected, actual)
}
}
}
func TestConsulCatalogGetBackendName(t *testing.T) {
provider := &CatalogProvider{
Domain: "localhost",
Prefix: "traefik",
}
services := []struct {
node *api.ServiceEntry
expected string
}{
{
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{},
},
},
expected: "api--10-0-0-1--80--0",
},
{
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"traefik.weight=42", "traefik.enable=true"},
},
},
expected: "api--10-0-0-1--80--traefik-weight-42--traefik-enable-true--1",
},
{
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"a funny looking tag"},
},
},
expected: "api--10-0-0-1--80--a-funny-looking-tag--2",
},
}
for i, e := range services {
actual := provider.getBackendName(e.node, i)
if actual != e.expected {
t.Fatalf("expected %s, got %s", e.expected, actual)
}
}
}
func TestConsulCatalogBuildConfig(t *testing.T) {
provider := &CatalogProvider{
Domain: "localhost",
Prefix: "traefik",
ExposedByDefault: false,
FrontEndRule: "Host:{{.ServiceName}}.{{.Domain}}",
frontEndRuleTemplate: template.New("consul catalog frontend rule"),
}
cases := []struct {
nodes []catalogUpdate
expectedFrontends map[string]*types.Frontend
expectedBackends map[string]*types.Backend
}{
{
nodes: []catalogUpdate{},
expectedFrontends: map[string]*types.Frontend{},
expectedBackends: map[string]*types.Backend{},
},
{
nodes: []catalogUpdate{
{
Service: &serviceUpdate{
ServiceName: "test",
},
},
},
expectedFrontends: map[string]*types.Frontend{},
expectedBackends: map[string]*types.Backend{},
},
{
nodes: []catalogUpdate{
{
Service: &serviceUpdate{
ServiceName: "test",
Attributes: []string{
"traefik.backend.loadbalancer=drr",
"traefik.backend.circuitbreaker=NetworkErrorRatio() > 0.5",
"random.foo=bar",
"traefik.backend.maxconn.amount=1000",
"traefik.backend.maxconn.extractorfunc=client.ip",
},
},
Nodes: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "test",
Address: "127.0.0.1",
Port: 80,
Tags: []string{
"traefik.backend.weight=42",
"random.foo=bar",
"traefik.backend.passHostHeader=true",
"traefik.protocol=https",
},
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
},
},
},
expectedFrontends: map[string]*types.Frontend{
"frontend-test": {
Backend: "backend-test",
PassHostHeader: true,
Routes: map[string]types.Route{
"route-host-test": {
Rule: "Host:test.localhost",
},
},
},
},
expectedBackends: map[string]*types.Backend{
"backend-test": {
Servers: map[string]types.Server{
"test--127-0-0-1--80--traefik-backend-weight-42--random-foo-bar--traefik-backend-passHostHeader-true--traefik-protocol-https--0": {
URL: "https://127.0.0.1:80",
Weight: 42,
},
},
CircuitBreaker: &types.CircuitBreaker{
Expression: "NetworkErrorRatio() > 0.5",
},
LoadBalancer: &types.LoadBalancer{
Method: "drr",
},
MaxConn: &types.MaxConn{
Amount: 1000,
ExtractorFunc: "client.ip",
},
},
},
},
}
for _, c := range cases {
actualConfig := provider.buildConfig(c.nodes)
if !reflect.DeepEqual(actualConfig.Backends, c.expectedBackends) {
t.Fatalf("expected %#v, got %#v", c.expectedBackends, actualConfig.Backends)
}
if !reflect.DeepEqual(actualConfig.Frontends, c.expectedFrontends) {
t.Fatalf("expected %#v, got %#v", c.expectedFrontends, actualConfig.Frontends)
}
}
}
func TestConsulCatalogNodeSorter(t *testing.T) {
cases := []struct {
nodes []*api.ServiceEntry
expected []*api.ServiceEntry
}{
{
nodes: []*api.ServiceEntry{},
expected: []*api.ServiceEntry{},
},
{
nodes: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "foo",
Address: "127.0.0.1",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
},
expected: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "foo",
Address: "127.0.0.1",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
},
},
{
nodes: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "foo",
Address: "127.0.0.2",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.2",
},
},
{
Service: &api.AgentService{
Service: "bar",
Address: "127.0.0.2",
Port: 81,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.2",
},
},
{
Service: &api.AgentService{
Service: "foo",
Address: "127.0.0.1",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
{
Service: &api.AgentService{
Service: "bar",
Address: "127.0.0.2",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.2",
},
},
},
expected: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "bar",
Address: "127.0.0.2",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.2",
},
},
{
Service: &api.AgentService{
Service: "bar",
Address: "127.0.0.2",
Port: 81,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.2",
},
},
{
Service: &api.AgentService{
Service: "foo",
Address: "127.0.0.1",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
{
Service: &api.AgentService{
Service: "foo",
Address: "127.0.0.2",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.2",
},
},
},
},
{
nodes: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "foo",
Address: "",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.2",
},
},
{
Service: &api.AgentService{
Service: "foo",
Address: "",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
},
expected: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "foo",
Address: "",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
{
Service: &api.AgentService{
Service: "foo",
Address: "",
Port: 80,
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.2",
},
},
},
},
}
for _, c := range cases {
sort.Sort(nodeSorter(c.nodes))
actual := c.nodes
if !reflect.DeepEqual(actual, c.expected) {
t.Fatalf("expected %q, got %q", c.expected, actual)
}
}
}
func TestConsulCatalogGetChangedKeys(t *testing.T) {
type Input struct {
currState map[string][]string
prevState map[string][]string
}
type Output struct {
addedKeys []string
removedKeys []string
}
cases := []struct {
input Input
output Output
}{
{
input: Input{
currState: map[string][]string{
"foo-service": {"v1"},
"bar-service": {"v1"},
"baz-service": {"v1"},
"qux-service": {"v1"},
"quux-service": {"v1"},
"quuz-service": {"v1"},
"corge-service": {"v1"},
"grault-service": {"v1"},
"garply-service": {"v1"},
"waldo-service": {"v1"},
"fred-service": {"v1"},
"plugh-service": {"v1"},
"xyzzy-service": {"v1"},
"thud-service": {"v1"},
},
prevState: map[string][]string{
"foo-service": {"v1"},
"bar-service": {"v1"},
"baz-service": {"v1"},
"qux-service": {"v1"},
"quux-service": {"v1"},
"quuz-service": {"v1"},
"corge-service": {"v1"},
"grault-service": {"v1"},
"garply-service": {"v1"},
"waldo-service": {"v1"},
"fred-service": {"v1"},
"plugh-service": {"v1"},
"xyzzy-service": {"v1"},
"thud-service": {"v1"},
},
},
output: Output{
addedKeys: []string{},
removedKeys: []string{},
},
},
{
input: Input{
currState: map[string][]string{
"foo-service": {"v1"},
"bar-service": {"v1"},
"baz-service": {"v1"},
"qux-service": {"v1"},
"quux-service": {"v1"},
"quuz-service": {"v1"},
"corge-service": {"v1"},
"grault-service": {"v1"},
"garply-service": {"v1"},
"waldo-service": {"v1"},
"fred-service": {"v1"},
"plugh-service": {"v1"},
"xyzzy-service": {"v1"},
"thud-service": {"v1"},
},
prevState: map[string][]string{
"foo-service": {"v1"},
"bar-service": {"v1"},
"baz-service": {"v1"},
"corge-service": {"v1"},
"grault-service": {"v1"},
"garply-service": {"v1"},
"waldo-service": {"v1"},
"fred-service": {"v1"},
"plugh-service": {"v1"},
"xyzzy-service": {"v1"},
"thud-service": {"v1"},
},
},
output: Output{
addedKeys: []string{"qux-service", "quux-service", "quuz-service"},
removedKeys: []string{},
},
},
{
input: Input{
currState: map[string][]string{
"foo-service": {"v1"},
"qux-service": {"v1"},
"quux-service": {"v1"},
"quuz-service": {"v1"},
"corge-service": {"v1"},
"grault-service": {"v1"},
"garply-service": {"v1"},
"waldo-service": {"v1"},
"fred-service": {"v1"},
"plugh-service": {"v1"},
"xyzzy-service": {"v1"},
"thud-service": {"v1"},
},
prevState: map[string][]string{
"foo-service": {"v1"},
"bar-service": {"v1"},
"baz-service": {"v1"},
"qux-service": {"v1"},
"quux-service": {"v1"},
"quuz-service": {"v1"},
"corge-service": {"v1"},
"waldo-service": {"v1"},
"fred-service": {"v1"},
"plugh-service": {"v1"},
"xyzzy-service": {"v1"},
"thud-service": {"v1"},
},
},
output: Output{
addedKeys: []string{"grault-service", "garply-service"},
removedKeys: []string{"bar-service", "baz-service"},
},
},
}
for _, c := range cases {
addedKeys, removedKeys := getChangedKeys(c.input.currState, c.input.prevState)
if !reflect.DeepEqual(fun.Set(addedKeys), fun.Set(c.output.addedKeys)) {
t.Fatalf("Added keys comparison results: got %q, want %q", addedKeys, c.output.addedKeys)
}
if !reflect.DeepEqual(fun.Set(removedKeys), fun.Set(c.output.removedKeys)) {
t.Fatalf("Removed keys comparison results: got %q, want %q", removedKeys, c.output.removedKeys)
}
}
}
func TestConsulCatalogFilterEnabled(t *testing.T) {
cases := []struct {
desc string
exposedByDefault bool
node *api.ServiceEntry
expected bool
}{
{
desc: "exposed",
exposedByDefault: true,
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{""},
},
},
expected: true,
},
{
desc: "exposed and tolerated by valid label value",
exposedByDefault: true,
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"", "traefik.enable=true"},
},
},
expected: true,
},
{
desc: "exposed and tolerated by invalid label value",
exposedByDefault: true,
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"", "traefik.enable=bad"},
},
},
expected: true,
},
{
desc: "exposed but overridden by label",
exposedByDefault: true,
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"", "traefik.enable=false"},
},
},
expected: false,
},
{
desc: "non-exposed",
exposedByDefault: false,
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{""},
},
},
expected: false,
},
{
desc: "non-exposed but overridden by label",
exposedByDefault: false,
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"", "traefik.enable=true"},
},
},
expected: true,
},
}
for _, c := range cases {
c := c
t.Run(c.desc, func(t *testing.T) {
t.Parallel()
provider := &CatalogProvider{
Domain: "localhost",
Prefix: "traefik",
ExposedByDefault: c.exposedByDefault,
}
if provider.nodeFilter("test", c.node) != c.expected {
t.Errorf("got unexpected filtering = %t", !c.expected)
}
})
}
}
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