Add knot test deployments

tests/knot-tcp-udp-deployment.yaml

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+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: test-knot-deployment
+spec:
+  selector:
+    matchLabels:
+      app: test-knot-deployment
+  replicas: 2
+  template:
+    metadata:
+      labels:
+        app: test-knot-deployment
+    spec:
+      containers:
+        - name: knot
+          image: cznic/knot:3.0
+          ports:
+            - name: udp-53
+              containerPort: 53
+              protocol: UDP
+            - name: tcp-53
+              containerPort: 53
+              protocol: TCP
+          volumeMounts:
+            - name: config
+              mountPath: "/config"
+          args:
+            - knotd
+      volumes:
+        - name: config
+          configMap:
+            name: test-knot-config-deployment
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: test-knot-config-deployment
+data:
+  knot.conf: |
+    server:
+        listen: 0.0.0.0@53
+        listen: ::@53
+
+    log:
+      - target: stdout
+
+    zone:
+      - domain: example.com
+        file: /config/example.com
+  example.com: |
+    $TTL 60
+    @       IN SOA dns3.ungleich.ch. root.ungleich.ch. (
+            2021021800 ; serial number of this zone file
+            1d         ; slave refresh (1 day)
+            2h         ; slave retry time in case of a problem (2 hours)
+            4w         ; slave expiration time (4 weeks)
+            1w         ; maximum caching time in case of failed lookups (1 hour)
+            )
+
+          NS dns1.ungleich.ch.
+
+
+    test                 AAAA    2a0a:e5c0:13::42

tests/knot-tcp-udp.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: test-knot
+spec:
+  containers:
+  - name: test-knot
+    image: cznic/knot:3.0
+    args:
+    - knotd
+    ports:
+      - name: udp-53
+        containerPort: 53
+        protocol: UDP
+      - name: tcp-53
+        containerPort: 53
+        protocol: TCP
+    volumeMounts:
+      - name: config
+        mountPath: "/config"
+  volumes:
+    - name: config
+      configMap:
+        name: test-knot-config
+
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: test-knot-config
+data:
+  knot.conf: |
+    server:
+        listen: 0.0.0.0@53
+        listen: ::@53
+
+    log:
+      - target: stdout
+
+    zone:
+      - domain: example.com
+        file: /config/example.com
+  example.com: |
+    $TTL 60
+    @       IN SOA dns3.ungleich.ch. root.ungleich.ch. (
+            2021021800 ; serial number of this zone file
+            1d         ; slave refresh (1 day)
+            2h         ; slave retry time in case of a problem (2 hours)
+            4w         ; slave expiration time (4 weeks)
+            1w         ; maximum caching time in case of failed lookups (1 hour)
+            )
+
+          NS dns1.ungleich.ch.
+
+
+    test                 AAAA    2a0a:e5c0:13::42