adds coturn node register script

k8s/Dockerfile-coturn-dns

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+FROM python:3
+
+WORKDIR /app
+
+COPY k8s/coturn-dns/requirements.txt requirements.txt
+RUN pip3 install -r requirements.txt
+
+COPY k8s/coturn-dns/ .
+
+CMD [ "python3", "register-nodes.py"]

k8s/coturn-dns/register-nodes.py

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+import requests
+import json
+import boto3
+import time
+
+HOSTED_ZONE="Z00156242SK162FEXDPVF"
+CLUSTER_ID="29062"
+POOL_ID="49934"
+TOKEN={"Authorization": "Bearer a821bb97039cbd8b259e19ef9f7ea7a4e295a7399e00709fc27cad2b1f3742f4"}
+
+while(True):
+    r = requests.get("https://api.linode.com/v4/lke/clusters/"+CLUSTER_ID+"/pools/"+POOL_ID, headers=TOKEN)
+
+    ips=[]
+
+    for node in r.json()['nodes']:
+        ip = requests.get("https://api.linode.com/v4/linode/instances/"+str(node['instance_id'])+"/ips", headers=TOKEN)
+        #print(ip.json())
+        ips.append({'Value': ip.json()['ipv4']['public'][0]['address']})
+
+    print("Node IPs: "+str(ips))
+    client = boto3.client('route53')
+    response = client.change_resource_record_sets(
+            HostedZoneId=HOSTED_ZONE,
+            ChangeBatch= {
+                            'Comment': 'COTURN NODES',
+                            'Changes': [
+                                {
+                                'Action': 'UPSERT',
+                                'ResourceRecordSet': {
+                                    'Name': 'coturn.staging.video.jamkazam.com',
+                                    'Type': 'A',
+                                    'TTL': 300,
+                                    'ResourceRecords': ips
+                                }
+                            }]
+            })
+    time.sleep(60)   

k8s/coturn-dns/requirements.txt

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+boto3
+requests