Cloudformation template to create EMR cluster - json

Question

I am trying to create EMR-5.30.1 clusters with applications such as Hadoop, livy, Spark, ZooKeeper, and Hive with the help of the CloudFormation template. But the issue is with this template is I am able the cluster with only one application from the above list of applications.
below is the CloudFormation Template
{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "Best Practice EMR Cluster for Spark or S3 backed Hbase",
"Parameters": {
"EMRClusterName": {
"Description": "Name of the cluster",
"Type": "String",
"Default": "emrcluster"
},
"KeyName": {
"Description": "Must be an existing Keyname",
"Type": "String",
"Default": "keyfilename"
},
"MasterInstanceType": {
"Description": "Instance type to be used for the master instance.",
"Type": "String",
"Default": "m5.xlarge"
},
"CoreInstanceType": {
"Description": "Instance type to be used for core instances.",
"Type": "String",
"Default": "m5.xlarge"
},
"NumberOfCoreInstances": {
"Description": "Must be a valid number",
"Type": "Number",
"Default": 1
},
"SubnetID": {
"Description": "Must be Valid public subnet ID",
"Default": "subnet-ee15b3e0",
"Type": "String"
},
"LogUri": {
"Description": "Must be a valid S3 URL",
"Default": "s3://aws/elasticmapreduce/",
"Type": "String"
},
"S3DataUri": {
"Description": "Must be a valid S3 bucket URL ",
"Default": "s3://aws/elasticmapreduce/",
"Type": "String"
},
"ReleaseLabel": {
"Description": "Must be a valid EMR release version",
"Default": "emr-5.30.1",
"Type": "String"
},
"Applications": {
"Description": "Please select which application will be installed on the cluster this would be either Ganglia and spark, or Ganglia and s3 backed Hbase",
"Type": "String",
"AllowedValues": [
"Spark",
"Hbase",
"Hive",
"Livy",
"ZooKeeper"
]
}
},
"Mappings": {},
"Conditions": {
"Spark": {
"Fn::Equals": [
{
"Ref": "Applications"
},
"Spark"
]
},
"Hbase": {
"Fn::Equals": [
{
"Ref": "Applications"
},
"Hbase"
]
},
"Hive": {
"Fn::Equals": [
{
"Ref": "Applications"
},
"Hive"
]
},
"Livy": {
"Fn::Equals": [
{
"Ref": "Applications"
},
"Livy"
]
},
"ZooKeeper": {
"Fn::Equals": [
{
"Ref": "Applications"
},
"ZooKeeper"
]
}
},
"Resources": {
"EMRCluster": {
"DependsOn": [
"EMRClusterServiceRole",
"EMRClusterinstanceProfileRole",
"EMRClusterinstanceProfile"
],
"Type": "AWS::EMR::Cluster",
"Properties": {
"Applications": [
{
"Name": "Ganglia"
},
{
"Fn::If": [
"Spark",
{
"Name": "Spark"
},
{
"Ref": "AWS::NoValue"
}
]
},
{
"Fn::If": [
"Hbase",
{
"Name": "Hbase"
},
{
"Ref": "AWS::NoValue"
}
]
},
{
"Fn::If": [
"Hive",
{
"Name": "Hive"
},
{
"Ref": "AWS::NoValue"
}
]
},
{
"Fn::If": [
"Livy",
{
"Name": "Livy"
},
{
"Ref": "AWS::NoValue"
}
]
},
{
"Fn::If": [
"ZooKeeper",
{
"Name": "ZooKeeper"
},
{
"Ref": "AWS::NoValue"
}
]
}
],
"Configurations": [
{
"Classification": "hbase-site",
"ConfigurationProperties": {
"hbase.rootdir":{"Ref":"S3DataUri"}
}
},
{
"Classification": "hbase",
"ConfigurationProperties": {
"hbase.emr.storageMode": "s3"
}
}
],
"Instances": {
"Ec2KeyName": {
"Ref": "KeyName"
},
"Ec2SubnetId": {
"Ref": "SubnetID"
},
"MasterInstanceGroup": {
"InstanceCount": 1,
"InstanceType": {
"Ref": "MasterInstanceType"
},
"Market": "ON_DEMAND",
"Name": "Master"
},
"CoreInstanceGroup": {
"InstanceCount": {
"Ref": "NumberOfCoreInstances"
},
"InstanceType": {
"Ref": "CoreInstanceType"
},
"Market": "ON_DEMAND",
"Name": "Core"
},
"TerminationProtected": false
},
"VisibleToAllUsers": true,
"JobFlowRole": {
"Ref": "EMRClusterinstanceProfile"
},
"ReleaseLabel": {
"Ref": "ReleaseLabel"
},
"LogUri": {
"Ref": "LogUri"
},
"Name": {
"Ref": "EMRClusterName"
},
"AutoScalingRole": "EMR_AutoScaling_DefaultRole",
"ServiceRole": {
"Ref": "EMRClusterServiceRole"
}
}
},
"EMRClusterServiceRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": [
"elasticmapreduce.amazonaws.com"
]
},
"Action": [
"sts:AssumeRole"
]
}
]
},
"ManagedPolicyArns": [
"arn:aws:iam::aws:policy/service-role/AmazonElasticMapReduceRole"
],
"Path": "/"
}
},
"EMRClusterinstanceProfileRole": {
"Type": "AWS::IAM::Role",
"Properties": {
"AssumeRolePolicyDocument": {
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Principal": {
"Service": [
"ec2.amazonaws.com"
]
},
"Action": [
"sts:AssumeRole"
]
}
]
},
"ManagedPolicyArns": [
"arn:aws:iam::aws:policy/service-role/AmazonElasticMapReduceforEC2Role"
],
"Path": "/"
}
},
"EMRClusterinstanceProfile": {
"Type": "AWS::IAM::InstanceProfile",
"Properties": {
"Path": "/",
"Roles": [
{
"Ref": "EMRClusterinstanceProfileRole"
}
]
}
}
},
"Outputs": {}
}
Also, I want to add a bootstrap script in this template as well, Can anyone please help me with the issue.

Answer 1

As per my knoweldge and understanding, Applications in your case should be an array like below, as mentioned in documentation
"Applications" : [ Application, ... ],
In you case, you can list applications like
"Applications" : [
{"Name" : "Spark"},
{"Name" : "Hbase"},
{"Name" : "Hive"},
{"Name" : "Livy"},
{"Name" : "Zookeeper"},
]
For more arguments other than Name to individual application dictionary , see detail here, you can pass Args, Additional_info etc

Answer 2

You can use following way:-
If you set "ReleaseLabel" then there is no need to mention versions of applications
"Applications": [{
"Name": "Hive"
},
{
"Name": "Presto"
},
{
"Name": "Spark"
}
]
For bootstrap:-
"BootstrapActions": [{
"Name": "setup",
"ScriptBootstrapAction": {
"Path": "s3://bucket/key/Bootstrap.sh"
}
}]

Answer 3

Define like this to create all applications at once.
{
"Type": "AWS::EMR::Cluster",
"Properties": {
"Applications": [
{
"Name": "Ganglia"
},
{
"Name": "Spark"
},
{
"Name": "Livy"
},
{
"Name": "ZooKeeper"
},
{
"Name": "JupyterHub"
}
]
}
}