añadiendo ejemplo de multus

coredns/configmap.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: coredns-config
+  namespace: coredns-multus
+data:
+  Corefile: |
+    .:53 {
+        log
+        errors
+        forward . 8.8.8.8
+        cache 30
+        hosts {
+            192.168.0.41   apolo.c2et.com
+            fallthrough
+        }
+    }

coredns/deployment.yaml

@@ -0,0 +1,32 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: coredns-multus
+  namespace: coredns-multus
+  annotations:
+    k8s.v1.cni.cncf.io/networks: |
+      [
+        { "name": "br-admin", "namespace": "kube-system" },
+        { "name": "br-srv", "namespace": "kube-system" }
+      ]
+spec:
+  hostNetwork: true
+  containers:
+    - name: coredns
+      image: coredns/coredns:1.11.1
+      volumeMounts:
+        - name: config-volume
+          mountPath: /etc/coredns/Corefile
+          subPath: Corefile
+      ports:
+        - containerPort: 53
+          protocol: UDP
+        - containerPort: 53
+          protocol: TCP
+  volumes:
+    - name: config-volume
+      configMap:
+        name: coredns-config
+  tolerations:
+    - operator: "Exists"
+  dnsPolicy: "Default"

coredns/namespace.yaml

@@ -0,0 +1,4 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: coredns-multus

coredns/net-attach-def-admin.yaml

@@ -0,0 +1,20 @@
+apiVersion: "k8s.cni.cncf.io/v1"
+kind: NetworkAttachmentDefinition
+metadata:
+  name: br-admin
+  namespace: coredns-multus
+spec:
+  config: '{
+    "cniVersion": "0.3.1",
+    "type": "bridge",
+    "bridge": "br-admin",
+    "ipam": {
+      "type": "static",
+      "addresses": [
+        {
+          "address": "192.168.1.100/24",
+          "gateway": "192.168.1.1"
+        }
+      ]
+    }
+  }'

coredns/net-attach-def-srv.yaml

@@ -0,0 +1,20 @@
+apiVersion: "k8s.cni.cncf.io/v1"
+kind: NetworkAttachmentDefinition
+metadata:
+  name: br-srv
+  namespace: coredns-multus
+spec:
+  config: '{
+    "cniVersion": "0.3.1",
+    "type": "bridge",
+    "bridge": "br-srv",
+    "ipam": {
+      "type": "static",
+      "addresses": [
+        {
+          "address": "192.168.200.100/22",
+          "gateway": "192.168.200.1"
+        }
+      ]
+    }
+  }'