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Add labels for traefik.frontend.entryPoints & PassTLSCert to Kubernetes

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ryarnyah 2017-11-20 02:12:03 +01:00 committed by Traefiker
parent 5d6384e101
commit 7ed4ae2f8c
4 changed files with 352 additions and 14 deletions
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11
docs/configuration/backends/kubernetes.md
View file

@ -57,6 +57,13 @@ See also [Kubernetes user guide](/user-guide/kubernetes).
# Default: false
#
# disablePassHostHeaders = true
# Enable PassTLSCert Headers.
#
# Optional
# Default: false
#
# enablePassTLSCert = true
```
### `endpoint`
@ -90,6 +97,10 @@ Annotations can be used on containers to override default behaviour for the whol
Override the default frontend rule priority.
- `traefik.frontend.redirect: https`:
Enables Redirect to another entryPoint for that frontend (e.g. HTTPS).
- `traefik.frontend.entryPoints: http,https`
Override the default frontend endpoints.
- `traefik.frontend.passTLSCert: true`
Override the default frontend PassTLSCert value. Default: `false`.
Annotations can be used on the Kubernetes service to override default behaviour:

59
provider/kubernetes/kubernetes.go
View file

@ -47,6 +47,7 @@ type Provider struct {
Token string `description:"Kubernetes bearer token (not needed for in-cluster client)"`
CertAuthFilePath string `description:"Kubernetes certificate authority file path (not needed for in-cluster client)"`
DisablePassHostHeaders bool `description:"Kubernetes disable PassHost Headers" export:"true"`
EnablePassTLSCert bool `description:"Kubernetes enable Pass TLS Client Certs" export:"true"`
Namespaces Namespaces `description:"Kubernetes namespaces" export:"true"`
LabelSelector string `description:"Kubernetes api label selector to use" export:"true"`
lastConfiguration safe.Safe
@ -165,25 +166,16 @@ func (p *Provider) loadIngresses(k8sClient Client) (*types.Configuration, error)
}
}
PassHostHeader := p.getPassHostHeader()
passHostHeaderAnnotation, ok := i.Annotations[types.LabelFrontendPassHostHeader]
switch {
case !ok:
// No op.
case passHostHeaderAnnotation == "false":
PassHostHeader = false
case passHostHeaderAnnotation == "true":
PassHostHeader = true
default:
log.Warnf("Unknown value '%s' for %s, falling back to %s", passHostHeaderAnnotation, types.LabelFrontendPassHostHeader, PassHostHeader)
}
passHostHeader := getAnnotationPassHostHeader(i, p)
passTLSCert := getAnnotationPassTLSCert(i, p)
if realm := i.Annotations[annotationKubernetesAuthRealm]; realm != "" && realm != traefikDefaultRealm {
log.Errorf("Value for annotation %q on ingress %s/%s invalid: no realm customization supported", annotationKubernetesAuthRealm, i.ObjectMeta.Namespace, i.ObjectMeta.Name)
delete(templateObjects.Backends, r.Host+pa.Path)
continue
}
entryPoints := getEntrypoints(i)
whitelistSourceRangeAnnotation := i.Annotations[annotationKubernetesWhitelistSourceRange]
whitelistSourceRange := provider.SplitAndTrimString(whitelistSourceRangeAnnotation)
@ -200,12 +192,14 @@ func (p *Provider) loadIngresses(k8sClient Client) (*types.Configuration, error)
templateObjects.Frontends[r.Host+pa.Path] = &types.Frontend{
Backend: r.Host + pa.Path,
PassHostHeader: PassHostHeader,
PassHostHeader: passHostHeader,
PassTLSCert: passTLSCert,
Routes: make(map[string]types.Route),
Priority: priority,
BasicAuth: basicAuthCreds,
WhitelistSourceRange: whitelistSourceRange,
Redirect: entryPointRedirect,
EntryPoints: entryPoints,
}
}
if len(r.Host) > 0 {
@ -318,6 +312,39 @@ func (p *Provider) loadIngresses(k8sClient Client) (*types.Configuration, error)
return &templateObjects, nil
}
func getEntrypoints(i *v1beta1.Ingress) []string {
entrypointsAnnotation, ok := i.Annotations[types.LabelFrontendEntryPoints]
if ok {
return strings.Split(entrypointsAnnotation, ",")
}
return nil
}
func getBoolAnnotation(meta v1.ObjectMeta, name string, defaultValue bool) bool {
annotationValue := defaultValue
annotationStringValue, ok := meta.Annotations[name]
switch {
case !ok:
// No op.
case annotationStringValue == "false":
annotationValue = false
case annotationStringValue == "true":
annotationValue = true
default:
log.Warnf("Unknown value '%s' for %s, falling back to %s", name, types.LabelFrontendPassTLSCert, defaultValue)
}
return annotationValue
}
func getAnnotationPassHostHeader(i *v1beta1.Ingress, p *Provider) bool {
return getBoolAnnotation(i.ObjectMeta, types.LabelFrontendPassHostHeader, p.getPassHostHeader())
}
func getAnnotationPassTLSCert(i *v1beta1.Ingress, p *Provider) bool {
return getBoolAnnotation(i.ObjectMeta, types.LabelFrontendPassTLSCert, p.getPassTLSCert())
}
func getRuleForPath(pa v1beta1.HTTPIngressPath, i *v1beta1.Ingress) string {
if len(pa.Path) == 0 {
return ""
@ -442,6 +469,10 @@ func (p *Provider) getPassHostHeader() bool {
return !p.DisablePassHostHeaders
}
func (p *Provider) getPassTLSCert() bool {
return p.EnablePassTLSCert
}
func (p *Provider) loadConfig(templateObjects types.Configuration) *types.Configuration {
var FuncMap = template.FuncMap{}
configuration, err := p.GetConfiguration("templates/kubernetes.tmpl", FuncMap, templateObjects)

295
provider/kubernetes/kubernetes_test.go
View file

@ -508,6 +508,92 @@ func TestGetPassHostHeader(t *testing.T) {
assert.Equal(t, expected, actual)
}
func TestGetPassTLSCert(t *testing.T) {
ingresses := []*v1beta1.Ingress{{
ObjectMeta: v1.ObjectMeta{
Namespace: "awesome",
},
Spec: v1beta1.IngressSpec{
Rules: []v1beta1.IngressRule{
{
Host: "foo",
IngressRuleValue: v1beta1.IngressRuleValue{
HTTP: &v1beta1.HTTPIngressRuleValue{
Paths: []v1beta1.HTTPIngressPath{
{
Path: "/bar",
Backend: v1beta1.IngressBackend{
ServiceName: "service1",
ServicePort: intstr.FromInt(801),
},
},
},
},
},
},
},
},
}}
services := []*v1.Service{
{
ObjectMeta: v1.ObjectMeta{
Name: "service1",
Namespace: "awesome",
UID: "1",
},
Spec: v1.ServiceSpec{
ClusterIP: "10.0.0.1",
Ports: []v1.ServicePort{
{
Name: "http",
Port: 801,
},
},
},
},
}
watchChan := make(chan interface{})
client := clientMock{
ingresses: ingresses,
services: services,
watchChan: watchChan,
}
provider := Provider{EnablePassTLSCert: true}
actual, err := provider.loadIngresses(client)
if err != nil {
t.Fatalf("error %+v", err)
}
expected := &types.Configuration{
Backends: map[string]*types.Backend{
"foo/bar": {
Servers: map[string]types.Server{},
CircuitBreaker: nil,
LoadBalancer: &types.LoadBalancer{
Method: "wrr",
},
},
},
Frontends: map[string]*types.Frontend{
"foo/bar": {
Backend: "foo/bar",
PassTLSCert: true,
PassHostHeader: true,
Routes: map[string]types.Route{
"/bar": {
Rule: "PathPrefix:/bar",
},
"foo": {
Rule: "Host:foo",
},
},
},
},
}
assert.Equal(t, expected, actual)
}
func TestOnlyReferencesServicesFromOwnNamespace(t *testing.T) {
ingresses := []*v1beta1.Ingress{
{
@ -976,6 +1062,64 @@ func TestIngressAnnotations(t *testing.T) {
},
},
},
{
ObjectMeta: v1.ObjectMeta{
Namespace: "testing",
Annotations: map[string]string{
"kubernetes.io/ingress.class": "traefik",
types.LabelFrontendPassTLSCert: "true",
},
},
Spec: v1beta1.IngressSpec{
Rules: []v1beta1.IngressRule{
{
Host: "other",
IngressRuleValue: v1beta1.IngressRuleValue{
HTTP: &v1beta1.HTTPIngressRuleValue{
Paths: []v1beta1.HTTPIngressPath{
{
Path: "/sslstuff",
Backend: v1beta1.IngressBackend{
ServiceName: "service1",
ServicePort: intstr.FromInt(80),
},
},
},
},
},
},
},
},
},
{
ObjectMeta: v1.ObjectMeta{
Namespace: "testing",
Annotations: map[string]string{
"kubernetes.io/ingress.class": "traefik",
types.LabelFrontendEntryPoints: "http,https",
},
},
Spec: v1beta1.IngressSpec{
Rules: []v1beta1.IngressRule{
{
Host: "other",
IngressRuleValue: v1beta1.IngressRuleValue{
HTTP: &v1beta1.HTTPIngressRuleValue{
Paths: []v1beta1.HTTPIngressPath{
{
Path: "/",
Backend: v1beta1.IngressBackend{
ServiceName: "service1",
ServicePort: intstr.FromInt(80),
},
},
},
},
},
},
},
},
},
{
ObjectMeta: v1.ObjectMeta{
Namespace: "testing",
@ -1222,6 +1366,30 @@ func TestIngressAnnotations(t *testing.T) {
Method: "wrr",
},
},
"other/": {
Servers: map[string]types.Server{
"http://example.com": {
URL: "http://example.com",
Weight: 1,
},
},
CircuitBreaker: nil,
LoadBalancer: &types.LoadBalancer{
Method: "wrr",
},
},
"other/sslstuff": {
Servers: map[string]types.Server{
"http://example.com": {
URL: "http://example.com",
Weight: 1,
},
},
CircuitBreaker: nil,
LoadBalancer: &types.LoadBalancer{
Method: "wrr",
},
},
"basic/auth": {
Servers: map[string]types.Server{
"http://example.com": {
@ -1299,6 +1467,32 @@ func TestIngressAnnotations(t *testing.T) {
},
Redirect: "",
},
"other/": {
Backend: "other/",
PassHostHeader: true,
EntryPoints: []string{"http", "https"},
Routes: map[string]types.Route{
"/": {
Rule: "PathPrefix:/",
},
"other": {
Rule: "Host:other",
},
},
},
"other/sslstuff": {
Backend: "other/sslstuff",
PassHostHeader: true,
PassTLSCert: true,
Routes: map[string]types.Route{
"/sslstuff": {
Rule: "PathPrefix:/sslstuff",
},
"other": {
Rule: "Host:other",
},
},
},
"basic/auth": {
Backend: "basic/auth",
PassHostHeader: true,
@ -1464,6 +1658,107 @@ func TestPriorityHeaderValue(t *testing.T) {
assert.Equal(t, expected, actual)
}
func TestInvalidPassTLSCertValue(t *testing.T) {
ingresses := []*v1beta1.Ingress{
{
ObjectMeta: v1.ObjectMeta{
Namespace: "testing",
Annotations: map[string]string{
types.LabelFrontendPassTLSCert: "herpderp",
},
},
Spec: v1beta1.IngressSpec{
Rules: []v1beta1.IngressRule{
{
Host: "foo",
IngressRuleValue: v1beta1.IngressRuleValue{
HTTP: &v1beta1.HTTPIngressRuleValue{
Paths: []v1beta1.HTTPIngressPath{
{
Path: "/bar",
Backend: v1beta1.IngressBackend{
ServiceName: "service1",
ServicePort: intstr.FromInt(80),
},
},
},
},
},
},
},
},
},
}
services := []*v1.Service{
{
ObjectMeta: v1.ObjectMeta{
Name: "service1",
UID: "1",
Namespace: "testing",
},
Spec: v1.ServiceSpec{
ClusterIP: "10.0.0.1",
Type: "ExternalName",
ExternalName: "example.com",
Ports: []v1.ServicePort{
{
Name: "http",
Port: 80,
},
},
},
},
}
endpoints := []*v1.Endpoints{}
watchChan := make(chan interface{})
client := clientMock{
ingresses: ingresses,
services: services,
endpoints: endpoints,
watchChan: watchChan,
}
provider := Provider{}
actual, err := provider.loadIngresses(client)
if err != nil {
t.Fatalf("error %+v", err)
}
expected := &types.Configuration{
Backends: map[string]*types.Backend{
"foo/bar": {
Servers: map[string]types.Server{
"http://example.com": {
URL: "http://example.com",
Weight: 1,
},
},
CircuitBreaker: nil,
LoadBalancer: &types.LoadBalancer{
Method: "wrr",
},
},
},
Frontends: map[string]*types.Frontend{
"foo/bar": {
Backend: "foo/bar",
PassTLSCert: false,
PassHostHeader: true,
Routes: map[string]types.Route{
"/bar": {
Rule: "PathPrefix:/bar",
},
"foo": {
Rule: "Host:foo",
},
},
},
},
}
assert.Equal(t, expected, actual)
}
func TestInvalidPassHostHeaderValue(t *testing.T) {
ingresses := []*v1beta1.Ingress{
{

1
types/common_label.go
View file

@ -17,6 +17,7 @@ const (
LabelFrontendRequestHeader = LabelPrefix + "frontend.headers.customrequestheaders"
LabelFrontendResponseHeader = LabelPrefix + "frontend.headers.customresponseheaders"
LabelFrontendPassHostHeader = LabelPrefix + "frontend.passHostHeader"
LabelFrontendPassTLSCert = LabelPrefix + "frontend.passTLSCert"
LabelFrontendPriority = LabelPrefix + "frontend.priority"
LabelFrontendRule = LabelPrefix + "frontend.rule"
LabelFrontendRuleType = LabelPrefix + "frontend.rule.type"