traefik/provider/consulcatalog/config_test.go

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package consulcatalog
import (
"testing"
"text/template"
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"time"
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"github.com/containous/flaeg"
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"github.com/containous/traefik/provider/label"
"github.com/containous/traefik/types"
"github.com/hashicorp/consul/api"
"github.com/stretchr/testify/assert"
)
func TestProviderBuildConfiguration(t *testing.T) {
p := &Provider{
Domain: "localhost",
Prefix: "traefik",
ExposedByDefault: false,
FrontEndRule: "Host:{{.ServiceName}}.{{.Domain}}",
frontEndRuleTemplate: template.New("consul catalog frontend rule"),
}
testCases := []struct {
desc string
nodes []catalogUpdate
expectedFrontends map[string]*types.Frontend
expectedBackends map[string]*types.Backend
}{
{
desc: "Should build config of nothing",
nodes: []catalogUpdate{},
expectedFrontends: map[string]*types.Frontend{},
expectedBackends: map[string]*types.Backend{},
},
{
desc: "Should build config with no frontend and backend",
nodes: []catalogUpdate{
{
Service: &serviceUpdate{
ServiceName: "test",
},
},
},
expectedFrontends: map[string]*types.Frontend{},
expectedBackends: map[string]*types.Backend{},
},
{
desc: "Should build config who contains one frontend and one backend",
nodes: []catalogUpdate{
{
Service: &serviceUpdate{
ServiceName: "test",
Attributes: []string{
"random.foo=bar",
label.TraefikBackendLoadBalancerMethod + "=drr",
label.TraefikBackendCircuitBreakerExpression + "=NetworkErrorRatio() > 0.5",
label.TraefikBackendMaxConnAmount + "=1000",
label.TraefikBackendMaxConnExtractorFunc + "=client.ip",
label.TraefikFrontendAuthBasic + "=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
},
},
Nodes: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "test",
Address: "127.0.0.1",
Port: 80,
Tags: []string{
"random.foo=bar",
label.Prefix + "backend.weight=42", // Deprecated label
label.TraefikFrontendPassHostHeader + "=true",
label.TraefikProtocol + "=https",
},
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
},
},
},
expectedFrontends: map[string]*types.Frontend{
"frontend-test": {
Backend: "backend-test",
PassHostHeader: true,
Routes: map[string]types.Route{
"route-host-test": {
Rule: "Host:test.localhost",
},
},
EntryPoints: []string{},
BasicAuth: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/", "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"},
},
},
expectedBackends: map[string]*types.Backend{
"backend-test": {
Servers: map[string]types.Server{
"test-0-us4-27hAOu2ARV7nNrmv6GoKlcA": {
URL: "https://127.0.0.1:80",
Weight: 42,
},
},
LoadBalancer: &types.LoadBalancer{
Method: "drr",
},
CircuitBreaker: &types.CircuitBreaker{
Expression: "NetworkErrorRatio() > 0.5",
},
MaxConn: &types.MaxConn{
Amount: 1000,
ExtractorFunc: "client.ip",
},
},
},
},
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{
desc: "when all labels are set",
nodes: []catalogUpdate{
{
Service: &serviceUpdate{
ServiceName: "test",
Attributes: []string{
label.TraefikBackend + "=foobar",
label.TraefikBackendCircuitBreakerExpression + "=NetworkErrorRatio() > 0.5",
label.TraefikBackendHealthCheckPath + "=/health",
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label.TraefikBackendHealthCheckScheme + "=http",
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label.TraefikBackendHealthCheckPort + "=880",
label.TraefikBackendHealthCheckInterval + "=6",
label.TraefikBackendHealthCheckHostname + "=foo.com",
label.TraefikBackendHealthCheckHeaders + "=Foo:bar || Bar:foo",
label.TraefikBackendLoadBalancerMethod + "=drr",
label.TraefikBackendLoadBalancerSticky + "=true",
label.TraefikBackendLoadBalancerStickiness + "=true",
label.TraefikBackendLoadBalancerStickinessCookieName + "=chocolate",
label.TraefikBackendMaxConnAmount + "=666",
label.TraefikBackendMaxConnExtractorFunc + "=client.ip",
label.TraefikBackendBufferingMaxResponseBodyBytes + "=10485760",
label.TraefikBackendBufferingMemResponseBodyBytes + "=2097152",
label.TraefikBackendBufferingMaxRequestBodyBytes + "=10485760",
label.TraefikBackendBufferingMemRequestBodyBytes + "=2097152",
label.TraefikBackendBufferingRetryExpression + "=IsNetworkError() && Attempts() <= 2",
label.TraefikFrontendAuthBasic + "=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
label.TraefikFrontendEntryPoints + "=http,https",
label.TraefikFrontendPassHostHeader + "=true",
label.TraefikFrontendPassTLSCert + "=true",
label.TraefikFrontendPriority + "=666",
label.TraefikFrontendRedirectEntryPoint + "=https",
label.TraefikFrontendRedirectRegex + "=nope",
label.TraefikFrontendRedirectReplacement + "=nope",
label.TraefikFrontendRedirectPermanent + "=true",
label.TraefikFrontendRule + "=Host:traefik.io",
label.TraefikFrontendWhiteListSourceRange + "=10.10.10.10",
label.TraefikFrontendWhiteListUseXForwardedFor + "=true",
label.TraefikFrontendRequestHeaders + "=Access-Control-Allow-Methods:POST,GET,OPTIONS || Content-type: application/json; charset=utf-8",
label.TraefikFrontendResponseHeaders + "=Access-Control-Allow-Methods:POST,GET,OPTIONS || Content-type: application/json; charset=utf-8",
label.TraefikFrontendSSLProxyHeaders + "=Access-Control-Allow-Methods:POST,GET,OPTIONS || Content-type: application/json; charset=utf-8",
label.TraefikFrontendAllowedHosts + "=foo,bar,bor",
label.TraefikFrontendHostsProxyHeaders + "=foo,bar,bor",
label.TraefikFrontendSSLHost + "=foo",
label.TraefikFrontendCustomFrameOptionsValue + "=foo",
label.TraefikFrontendContentSecurityPolicy + "=foo",
label.TraefikFrontendPublicKey + "=foo",
label.TraefikFrontendReferrerPolicy + "=foo",
label.TraefikFrontendCustomBrowserXSSValue + "=foo",
label.TraefikFrontendSTSSeconds + "=666",
label.TraefikFrontendSSLForceHost + "=true",
label.TraefikFrontendSSLRedirect + "=true",
label.TraefikFrontendSSLTemporaryRedirect + "=true",
label.TraefikFrontendSTSIncludeSubdomains + "=true",
label.TraefikFrontendSTSPreload + "=true",
label.TraefikFrontendForceSTSHeader + "=true",
label.TraefikFrontendFrameDeny + "=true",
label.TraefikFrontendContentTypeNosniff + "=true",
label.TraefikFrontendBrowserXSSFilter + "=true",
label.TraefikFrontendIsDevelopment + "=true",
label.Prefix + label.BaseFrontendErrorPage + "foo." + label.SuffixErrorPageStatus + "=404",
label.Prefix + label.BaseFrontendErrorPage + "foo." + label.SuffixErrorPageBackend + "=foobar",
label.Prefix + label.BaseFrontendErrorPage + "foo." + label.SuffixErrorPageQuery + "=foo_query",
label.Prefix + label.BaseFrontendErrorPage + "bar." + label.SuffixErrorPageStatus + "=500,600",
label.Prefix + label.BaseFrontendErrorPage + "bar." + label.SuffixErrorPageBackend + "=foobar",
label.Prefix + label.BaseFrontendErrorPage + "bar." + label.SuffixErrorPageQuery + "=bar_query",
label.TraefikFrontendRateLimitExtractorFunc + "=client.ip",
label.Prefix + label.BaseFrontendRateLimit + "foo." + label.SuffixRateLimitPeriod + "=6",
label.Prefix + label.BaseFrontendRateLimit + "foo." + label.SuffixRateLimitAverage + "=12",
label.Prefix + label.BaseFrontendRateLimit + "foo." + label.SuffixRateLimitBurst + "=18",
label.Prefix + label.BaseFrontendRateLimit + "bar." + label.SuffixRateLimitPeriod + "=3",
label.Prefix + label.BaseFrontendRateLimit + "bar." + label.SuffixRateLimitAverage + "=6",
label.Prefix + label.BaseFrontendRateLimit + "bar." + label.SuffixRateLimitBurst + "=9",
},
},
Nodes: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "test",
Address: "10.0.0.1",
Port: 80,
Tags: []string{
label.TraefikProtocol + "=https",
label.TraefikWeight + "=12",
},
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
{
Service: &api.AgentService{
Service: "test",
Address: "10.0.0.2",
Port: 80,
Tags: []string{
label.TraefikProtocol + "=https",
label.TraefikWeight + "=12",
},
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
},
},
},
expectedFrontends: map[string]*types.Frontend{
"frontend-test": {
EntryPoints: []string{
"http",
"https",
},
Backend: "backend-test",
Routes: map[string]types.Route{
"route-host-test": {
Rule: "Host:traefik.io",
},
},
PassHostHeader: true,
PassTLSCert: true,
Priority: 666,
BasicAuth: []string{
"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/",
"test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
},
WhiteList: &types.WhiteList{
SourceRange: []string{
"10.10.10.10",
},
UseXForwardedFor: true,
},
Headers: &types.Headers{
CustomRequestHeaders: map[string]string{
"Access-Control-Allow-Methods": "POST,GET,OPTIONS",
"Content-Type": "application/json; charset=utf-8",
},
CustomResponseHeaders: map[string]string{
"Access-Control-Allow-Methods": "POST,GET,OPTIONS",
"Content-Type": "application/json; charset=utf-8",
},
AllowedHosts: []string{
"foo",
"bar",
"bor",
},
HostsProxyHeaders: []string{
"foo",
"bar",
"bor",
},
SSLRedirect: true,
SSLTemporaryRedirect: true,
SSLForceHost: true,
SSLHost: "foo",
SSLProxyHeaders: map[string]string{
"Access-Control-Allow-Methods": "POST,GET,OPTIONS",
"Content-Type": "application/json; charset=utf-8",
},
STSSeconds: 666,
STSIncludeSubdomains: true,
STSPreload: true,
ForceSTSHeader: true,
FrameDeny: true,
CustomFrameOptionsValue: "foo",
ContentTypeNosniff: true,
BrowserXSSFilter: true,
CustomBrowserXSSValue: "foo",
ContentSecurityPolicy: "foo",
PublicKey: "foo",
ReferrerPolicy: "foo",
IsDevelopment: true,
},
Errors: map[string]*types.ErrorPage{
"foo": {
Status: []string{"404"},
Query: "foo_query",
Backend: "backend-foobar",
},
"bar": {
Status: []string{"500", "600"},
Query: "bar_query",
Backend: "backend-foobar",
},
},
RateLimit: &types.RateLimit{
ExtractorFunc: "client.ip",
RateSet: map[string]*types.Rate{
"foo": {
Period: flaeg.Duration(6 * time.Second),
Average: 12,
Burst: 18,
},
"bar": {
Period: flaeg.Duration(3 * time.Second),
Average: 6,
Burst: 9,
},
},
},
Redirect: &types.Redirect{
EntryPoint: "https",
Regex: "",
Replacement: "",
Permanent: true,
},
},
},
expectedBackends: map[string]*types.Backend{
"backend-test": {
Servers: map[string]types.Server{
"test-0-N753CZ-JEP1SmRf5Wfe6S3-RuM": {
URL: "https://10.0.0.1:80",
Weight: 12,
},
"test-1-u4RAIw2K4-PDJh41dqqB4kM2wy0": {
URL: "https://10.0.0.2:80",
Weight: 12,
},
},
CircuitBreaker: &types.CircuitBreaker{
Expression: "NetworkErrorRatio() > 0.5",
},
LoadBalancer: &types.LoadBalancer{
Method: "drr",
Sticky: true,
Stickiness: &types.Stickiness{
CookieName: "chocolate",
},
},
MaxConn: &types.MaxConn{
Amount: 666,
ExtractorFunc: "client.ip",
},
HealthCheck: &types.HealthCheck{
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Scheme: "http",
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Path: "/health",
Port: 880,
Interval: "6",
Hostname: "foo.com",
Headers: map[string]string{
"Foo": "bar",
"Bar": "foo",
},
},
Buffering: &types.Buffering{
MaxResponseBodyBytes: 10485760,
MemResponseBodyBytes: 2097152,
MaxRequestBodyBytes: 10485760,
MemRequestBodyBytes: 2097152,
RetryExpression: "IsNetworkError() && Attempts() <= 2",
},
},
},
},
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{
desc: "Should build config containing one frontend, one IPv4 and one IPv6 backend",
nodes: []catalogUpdate{
{
Service: &serviceUpdate{
ServiceName: "test",
Attributes: []string{
"random.foo=bar",
label.TraefikBackendLoadBalancerMethod + "=drr",
label.TraefikBackendCircuitBreakerExpression + "=NetworkErrorRatio() > 0.5",
label.TraefikBackendMaxConnAmount + "=1000",
label.TraefikBackendMaxConnExtractorFunc + "=client.ip",
label.TraefikFrontendAuthBasic + "=test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/,test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0",
},
},
Nodes: []*api.ServiceEntry{
{
Service: &api.AgentService{
Service: "test",
Address: "127.0.0.1",
Port: 80,
Tags: []string{
"random.foo=bar",
label.Prefix + "backend.weight=42", // Deprecated label
label.TraefikFrontendPassHostHeader + "=true",
label.TraefikProtocol + "=https",
},
},
Node: &api.Node{
Node: "localhost",
Address: "127.0.0.1",
},
},
{
Service: &api.AgentService{
Service: "test",
Address: "::1",
Port: 80,
Tags: []string{
"random.foo=bar",
label.Prefix + "backend.weight=42", // Deprecated label
label.TraefikFrontendPassHostHeader + "=true",
label.TraefikProtocol + "=https",
},
},
Node: &api.Node{
Node: "localhost",
Address: "::1",
},
},
},
},
},
expectedFrontends: map[string]*types.Frontend{
"frontend-test": {
Backend: "backend-test",
PassHostHeader: true,
Routes: map[string]types.Route{
"route-host-test": {
Rule: "Host:test.localhost",
},
},
EntryPoints: []string{},
BasicAuth: []string{"test:$apr1$H6uskkkW$IgXLP6ewTrSuBkTrqE8wj/", "test2:$apr1$d9hr9HBB$4HxwgUir3HP4EsggP/QNo0"},
},
},
expectedBackends: map[string]*types.Backend{
"backend-test": {
Servers: map[string]types.Server{
"test-0-us4-27hAOu2ARV7nNrmv6GoKlcA": {
URL: "https://127.0.0.1:80",
Weight: 42,
},
"test-1-Gh4zrXo5flAAz1A8LAEHm1-TSnE": {
URL: "https://[::1]:80",
Weight: 42,
},
},
LoadBalancer: &types.LoadBalancer{
Method: "drr",
},
CircuitBreaker: &types.CircuitBreaker{
Expression: "NetworkErrorRatio() > 0.5",
},
MaxConn: &types.MaxConn{
Amount: 1000,
ExtractorFunc: "client.ip",
},
},
},
},
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}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
nodes := fakeLoadTraefikLabelsSlice(test.nodes, p.Prefix)
actualConfig := p.buildConfigurationV2(nodes)
assert.NotNil(t, actualConfig)
assert.Equal(t, test.expectedBackends, actualConfig.Backends)
assert.Equal(t, test.expectedFrontends, actualConfig.Frontends)
})
}
}
func TestGetTag(t *testing.T) {
testCases := []struct {
desc string
tags []string
key string
defaultValue string
expected string
}{
{
desc: "Should return value of foo.bar key",
tags: []string{
"foo.bar=random",
"traefik.backend.weight=42",
"management",
},
key: "foo.bar",
defaultValue: "0",
expected: "random",
},
{
desc: "Should return default value when nonexistent key",
tags: []string{
"foo.bar.foo.bar=random",
"traefik.backend.weight=42",
"management",
},
key: "foo.bar",
defaultValue: "0",
expected: "0",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
actual := getTag(test.key, test.tags, test.defaultValue)
assert.Equal(t, test.expected, actual)
})
}
}
func TestHasTag(t *testing.T) {
testCases := []struct {
desc string
name string
tags []string
expected bool
}{
{
desc: "tag without value",
name: "foo",
tags: []string{"foo"},
expected: true,
},
{
desc: "tag with value",
name: "foo",
tags: []string{"foo=true"},
expected: true,
},
{
desc: "missing tag",
name: "foo",
tags: []string{"foobar=true"},
expected: false,
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
actual := hasTag(test.name, test.tags)
assert.Equal(t, test.expected, actual)
})
}
}
func TestProviderGetPrefixedName(t *testing.T) {
testCases := []struct {
desc string
name string
prefix string
expected string
}{
{
desc: "empty name with prefix",
name: "",
prefix: "foo",
expected: "",
},
{
desc: "empty name without prefix",
name: "",
prefix: "",
expected: "",
},
{
desc: "with prefix",
name: "bar",
prefix: "foo",
expected: "foo.bar",
},
{
desc: "without prefix",
name: "bar",
prefix: "",
expected: "bar",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
p := &Provider{Prefix: test.prefix}
actual := p.getPrefixedName(test.name)
assert.Equal(t, test.expected, actual)
})
}
}
func TestProviderGetAttribute(t *testing.T) {
testCases := []struct {
desc string
tags []string
key string
defaultValue string
prefix string
expected string
}{
{
desc: "Should return tag value 42",
prefix: "traefik",
tags: []string{
"foo.bar=ramdom",
"traefik.backend.weight=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "42",
},
{
desc: "Should return tag default value 0",
prefix: "traefik",
tags: []string{
"foo.bar=ramdom",
"traefik.backend.wei=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "0",
},
{
desc: "Should return tag value 42 when empty prefix",
tags: []string{
"foo.bar=ramdom",
"backend.weight=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "42",
},
{
desc: "Should return default value 0 when empty prefix",
tags: []string{
"foo.bar=ramdom",
"backend.wei=42",
},
key: "backend.weight",
defaultValue: "0",
expected: "0",
},
{
desc: "Should return for.bar key value random when empty prefix",
tags: []string{
"foo.bar=ramdom",
"backend.wei=42",
},
key: "foo.bar",
defaultValue: "random",
expected: "ramdom",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
p := &Provider{
Domain: "localhost",
Prefix: test.prefix,
}
actual := p.getAttribute(test.key, test.tags, test.defaultValue)
assert.Equal(t, test.expected, actual)
})
}
}
func TestProviderGetFrontendRule(t *testing.T) {
testCases := []struct {
desc string
service serviceUpdate
expected string
}{
{
desc: "Should return default host foo.localhost",
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{},
},
expected: "Host:foo.localhost",
},
{
desc: "Should return host *.example.com",
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=Host:*.example.com",
},
},
expected: "Host:*.example.com",
},
{
desc: "Should return host foo.example.com",
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=Host:{{.ServiceName}}.example.com",
},
},
expected: "Host:foo.example.com",
},
{
desc: "Should return path prefix /bar",
service: serviceUpdate{
ServiceName: "foo",
Attributes: []string{
"traefik.frontend.rule=PathPrefix:{{getTag \"contextPath\" .Attributes \"/\"}}",
"contextPath=/bar",
},
},
expected: "PathPrefix:/bar",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
p := &Provider{
Domain: "localhost",
Prefix: "traefik",
FrontEndRule: "Host:{{.ServiceName}}.{{.Domain}}",
frontEndRuleTemplate: template.New("consul catalog frontend rule"),
}
p.setupFrontEndRuleTemplate()
labels := tagsToNeutralLabels(test.service.Attributes, p.Prefix)
test.service.TraefikLabels = labels
actual := p.getFrontendRule(test.service)
assert.Equal(t, test.expected, actual)
})
}
}
func TestGetBackendAddress(t *testing.T) {
testCases := []struct {
desc string
node *api.ServiceEntry
expected string
}{
{
desc: "Should return the address of the service",
node: &api.ServiceEntry{
Node: &api.Node{
Address: "10.1.0.1",
},
Service: &api.AgentService{
Address: "10.2.0.1",
},
},
expected: "10.2.0.1",
},
{
desc: "Should return the address of the node",
node: &api.ServiceEntry{
Node: &api.Node{
Address: "10.1.0.1",
},
Service: &api.AgentService{
Address: "",
},
},
expected: "10.1.0.1",
},
}
for _, test := range testCases {
test := test
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
actual := getBackendAddress(test.node)
assert.Equal(t, test.expected, actual)
})
}
}
func TestGetServerName(t *testing.T) {
testCases := []struct {
desc string
node *api.ServiceEntry
expected string
}{
{
desc: "Should create backend name without tags",
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{},
},
},
expected: "api-0-eUSiqD6uNvvh6zxsY-OeRi8ZbaE",
},
{
desc: "Should create backend name with multiple tags",
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-1-eJ8MR2JxjXyZgs1bhurVa0-9OI8",
},
{
desc: "Should create backend name with one tag",
node: &api.ServiceEntry{
Service: &api.AgentService{
Service: "api",
Address: "10.0.0.1",
Port: 80,
Tags: []string{"a funny looking tag"},
},
},
expected: "api-2-lMCDCsG7sh0SCXOHo4oBOQB-9D4",
},
}
for i, test := range testCases {
test := test
i := i
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
actual := getServerName(test.node, i)
assert.Equal(t, test.expected, actual)
})
}
}
func fakeLoadTraefikLabelsSlice(nodes []catalogUpdate, prefix string) []catalogUpdate {
var result []catalogUpdate
for _, node := range nodes {
labels := tagsToNeutralLabels(node.Service.Attributes, prefix)
node.Service.TraefikLabels = labels
result = append(result, node)
}
return result
}