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Allow setting circuitbreaker expression via Kubernetes annotation (#1056)

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Brian Akins 2017-02-03 11:47:48 -05:00 • committed by Emile Vauge
parent b22dc213e8
commit 225dbcce0a
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4
docs/toml.md
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@ -1068,6 +1068,10 @@ Annotations can be used on the Kubernetes service to override default behaviour:
You can find here an example [ingress](https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/cheese-ingress.yaml) and [replication controller](https://raw.githubusercontent.com/containous/traefik/master/examples/k8s/traefik.yaml).
Additionally, an annotation can be used on Kubernetes services to set the [circuit breaker expression](https://docs.traefik.io/basics/#backends) for a backend.
- `traefik.backend.circuitbreaker: <expression>`: set the circuit breaker expression for the backend (Default: nil).
## Consul backend
Træfɪk can be configured to use Consul as a backend configuration:

13
docs/user-guide/kubernetes.md
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@ -1,6 +1,6 @@
# Kubernetes Ingress Controller
This guide explains how to use Træfɪk as an Ingress controller in a Kubernetes cluster.
This guide explains how to use Træfɪk as an Ingress controller in a Kubernetes cluster.
If you are not familiar with Ingresses in Kubernetes you might want to read the [Kubernetes user guide](http://kubernetes.io/docs/user-guide/ingress/)
The config files used in this guide can be found in the [examples directory](https://github.com/containous/traefik/tree/master/examples/k8s)
@ -113,7 +113,7 @@ metadata:
namespace: kube-system
spec:
selector:
k8s-app: traefik-ingress-lb
k8s-app: traefik-ingress-lb
ports:
- port: 80
targetPort: 8080
@ -139,7 +139,7 @@ kubectl apply -f examples/k8s/ui.yaml
```
Now lets setup an entry in our /etc/hosts file to route `traefik-ui.local`
to our cluster.
to our cluster.
> In production you would want to set up real dns entries.
@ -299,6 +299,8 @@ apiVersion: v1
kind: Service
metadata:
name: wensleydale
annotations:
traefik.backend.circuitbreaker: "NetworkErrorRatio() > 0.5"
spec:
ports:
- name: http
@ -308,6 +310,11 @@ spec:
app: cheese
task: wensleydale
```
> Notice that we also set a [circuit breaker expression](https://docs.traefik.io/basics/#backends) for one of the backends
> by setting the `traefik.backend.circuitbreaker` annotation on the service.
[examples/k8s/cheese-services.yaml](https://github.com/containous/traefik/tree/master/examples/k8s/cheese-services.yaml)
```sh