I have installed Kubernetes on bare metal and figured out, how to use Ingress and route hosts to my service.

But when I use same configuration for different host, I get default backend - 404.

Working configuration:

apiVersion: v1
kind: Namespace
metadata:
    name: k8s-mariyo-host-1-sk-node-hello-world

---

apiVersion: v1
kind: Service
metadata:
    namespace: k8s-mariyo-host-1-sk-node-hello-world
    name: node-hello-world
    labels:
        app: node-hello-world
spec:
    ports:
        -   port: 80
            targetPort: 8080
    selector:
        app: node-hello-world

---

apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
    namespace: k8s-mariyo-host-1-sk-node-hello-world
    name: node-hello-world
spec:
    selector:
        matchLabels:
            app: node-hello-world
    strategy:
        type: Recreate
    template:
        metadata:
            namespace: k8s-mariyo-host-1-sk-node-hello-world
            labels:
                app: node-hello-world
        spec:
            containers:
                -   image: 10.100.100.1:5000/local-node-hello-world:1.5
                    name: hello-world
                    ports:
                        -   containerPort: 8080
                            name: hello-world

---

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
    namespace: k8s-mariyo-host-1-sk-node-hello-world
    name: node-hello-world
spec:
    rules:
        -   host: "node-hello-world.host-1.sk"
            http:
                paths:
                    -   path: /
                        backend:
                            serviceName: node-hello-world
                            servicePort: 80

default backend - 404 configuration:

apiVersion: v1
kind: Namespace
metadata:
    name: k8s-mariyo-host-2-sk-k8s

---

apiVersion: v1
kind: Service
metadata:
    namespace: k8s-mariyo-host-2-sk-k8s
    name: k8s
    labels:
        app: k8s
spec:
    ports:
        -   port: 80
            targetPort: 8080
    selector:
        app: k8s

---

apiVersion: apps/v1 # for versions before 1.9.0 use apps/v1beta2
kind: Deployment
metadata:
    namespace: k8s-mariyo-host-2-sk-k8s
    name: k8s
spec:
    selector:
        matchLabels:
            app: k8s
    strategy:
        type: Recreate
    template:
        metadata:
            namespace: k8s-mariyo-host-2-sk-k8s
            labels:
                app: k8s
        spec:
            containers:
                -   image: 10.100.100.1:5000/local-node-hello-world:1.5
                    name: k8s-hello
                    ports:
                        -   containerPort: 8080
                            name: k8s-hello

---

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
    namespace: k8s-mariyo-host-2-sk-k8s
    name: k8s
spec:
    rules:
        -   host: "k8s.host-2.sk"
            http:
                paths:
                    -   path: /
                        backend:
                            serviceName: k8s
                            servicePort: 80

Can anybody see what could couse strange/different behaviour of almost simillar configurations? Here is link to diff: https://www.diffchecker.com/9AlnFQGz