I am trying to deploy my application but I am getting the following yaml error for the traefik label I am adding so that Traefik will detect the application.
$ kubectl apply -f example-app.yml
The ReplicationController “example-app” is invalid:
* metadata.labels: Invalid value: "Host(\ mydomain.com \ )":
a valid label must be an empty string or consist of alphanumeric characters, '-', '' or '.', and must start and end with an alphanumeric character (e.g. 'MyValue', or 'my_value', or '12345', regex used for validation is '(([A-Za-z0-9][-A-Za-z0-9.]*)?[A-Za-z0-9])?')\ ``
My example-app.yml:
apiVersion: v1
kind: ReplicationController
metadata:
namespace: example
name: example-app
labels:
example-component: "example-app"
traefik.enable: "true"
traefik.http.routers.example-app.rule: "Host(\ mydomain.com)"
traefik.http.routers.example-app.entrypoints: "web"
I also tried:
- "example-component=example-app"
- "traefik.http.routers.example-app.rule=Host( mydomain.com )"
- "traefik.http.routers.example-app.entrypoints=web"
- "traefik.enable=true"
but get:
invalid type for io.k8s.apimachinery.pkg.apis.meta.v1.ObjectMeta.labels: got “array”, expected “map”];