If I have deployments for two haproxy ingress controllers in two different namespaces on the same cluster, but the functionality of haproxy ingress controller is misbehaving. I just wanted to know if I can create two haproxy deployments in two namespaces and use them effortlessly?
Yes, you can. In order to achieve this you should use correctly configured RBAC and --namespace-whitelist flag to point to correct namespace.
HAProxy documentation says you can whitelist/blacklist namespaces HAProxy uses:
--namespace-whitelistThe controller watches all namespaces, but you can specify a specific namespace to watch. You can specify this setting multiple times.
--namespace-blacklistThe controller watches all namespaces, but you can blacklist a namespace that you do not want to watch for changes. You can specify this setting multiple times.
You can customize the ingress controller Deployment resource in the file haproxy-ingress.yaml in the repository https://github.com/haproxytech/ by adding any of the following arguments under the section spec.template.spec.containers.args
You deployments should look like
spec:
serviceAccountName: haproxy-ingress-service-account
containers:
- name: haproxy-ingress
image: haproxytech/kubernetes-ingress
args:
- --default-ssl-certificate=default/tls-secret
- --configmap=default/haproxy-configmap
- --default-backend-service=haproxy-controller/ingress-default-backend
- --namespace-whitelist=mynamespace1