How to get Private IP of HDI cluster using ARM template - azure

Question

I have created template1 which will deploy HDI cluster and template2 which will deploy Azure VM seperately.
Now I want to get the Head-node Private IP from cluster and pass it to Azure VM template for processing using ARM template.
How can I do so?

Answer 1

Considering this is the object you are getting from HDcluster:
{
"id": "xxx",
"name": "xxx",
"type": "Microsoft.HDInsight/clusters",
"location": "East US",
"etag": "xxx",
"tags": null,
"properties": {
"clusterVersion": "3.5.1000.0",
"osType": "Linux",
"clusterDefinition": {
"blueprint": "https://blueprints.azurehdinsight.net/spark-3.5.1000.0.9865375.json",
"kind": "SPARK",
"componentVersion": {
"Spark": "1.6"
}
},
"computeProfile": {
"roles": [
{
"name": "headnode",
"targetInstanceCount": 2,
"hardwareProfile": {
"vmSize": "ExtraLarge"
},
"osProfile": {
"linuxOperatingSystemProfile": {
"username": "sshuser"
}
}
},
{
"name": "workernode",
"targetInstanceCount": 1,
"hardwareProfile": {
"vmSize": "Large"
},
"osProfile": {
"linuxOperatingSystemProfile": {
"username": "sshuser"
}
}
},
{
"name": "zookeepernode",
"targetInstanceCount": 3,
"hardwareProfile": {
"vmSize": "Medium"
},
"osProfile": {
"linuxOperatingSystemProfile": {
"username": "sshuser"
}
}
}
]
},
"provisioningState": "Succeeded",
"clusterState": "Running",
"createdDate": "2017-04-11T09:07:44.68",
"quotaInfo": {
"coresUsed": 20
},
"connectivityEndpoints": [
{
"name": "SSH",
"protocol": "TCP",
"location": "xxx.azurehdinsight.net",
"port": 22
},
{
"name": "HTTPS",
"protocol": "TCP",
"location": "xxx.azurehdinsight.net",
"port": 443
}
],
"tier": "standard"
}
}
I'm guessing this is the best output you can get, so you can use something like:
"outputs": {
"test": {
"type": "Object",
"value": "[reference(parameters('clusterName'),'2015-03-01-preview').connectivityEndpoints[0].location]"
}
}
This will get you an output of xxx.azurehdinsight.net
And you can either create a new deployment with this data or (just like I said) add RHEL VM to the same template and make it dependOn on the HDCluster deployment and reference the same thing as an input to VMextension.