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ReplicaSetWithArbiter.template
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{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "3-node MongoDB Replica Set with Arbiter deployment with a RAID10 storage configuration with 8 EBS volumes",
"Parameters" : {
"KeyName" : {
"Description" : "Name of an existing EC2 KeyPair to enable SSH access",
"Type" : "String"
},
"InstanceType" : {
"Type" : "String",
"Default" : "m1.large",
"AllowedValues" : [ "t1.micro", "m1.small", "m1.medium", "m1.large", "m1.xlarge", "m2.xlarge", "m2.2xlarge", "m2.4xlarge", "c1.xlarge", "cc1.4xlarge" ],
"Description" : "EC2 instance type (e.g. m1.large, m1.xlarge, m2.xlarge)"
},
"ArbiterInstanceType" : {
"Type" : "String",
"Default" : "t1.micro",
"AllowedValues" : [ "t1.micro", "m1.small", "m1.medium", "m1.large" ],
"Description" : "Arbiter EC2 instance type (e.g. t1.micro, m1.small,..)"
},
"VolumeSize" : {
"Description" : "Volume size for each EBS volume",
"Type" : "Number",
"Default" : "32"
},
"ReplicaSetName" : {
"Description" : "Name for the MongoDB replica set",
"Type" : "String",
"Default" : "MyReplicaSet"
},
"SecurityGroupName" : {
"Description" : "MongoDb security group name",
"Type" : "String"
}
},
"Mappings" : {
"InstanceTypeArch" : {
"t1.micro" : { "Arch" : "64" },
"m1.small" : { "Arch" : "64" },
"m1.medium" : { "Arch" : "64" },
"m1.large" : { "Arch" : "64" },
"m1.xlarge" : { "Arch" : "64" },
"m2.xlarge" : { "Arch" : "64" },
"m2.2xlarge" : { "Arch" : "64" },
"m2.4xlarge" : { "Arch" : "64" },
"c1.medium" : { "Arch" : "64" },
"c1.xlarge" : { "Arch" : "64" },
"cc1.4xlarge" : { "Arch" : "64HVM" }
},
"RegionImageZone" : {
"us-east-1" : { "64" : "ami-3d4ff254", "64HVM" : "ami-e965ba80" },
"us-west-2" : { "64" : "ami-20800c10", "64HVM" : "NOT_YET_SUPPORTED" },
"us-west-1" : { "64" : "ami-87712ac2", "64HVM" : "NOT_YET_SUPPORTED" },
"eu-west-1" : { "64" : "ami-e1e8d395", "64HVM" : "NOT_YET_SUPPORTED" },
"ap-southeast-1" : { "64" : "ami-a4ca8df6", "64HVM" : "NOT_YET_SUPPORTED" },
"ap-northeast-1" : { "64" : "ami-60c77761", "64HVM" : "NOT_YET_SUPPORTED" },
"sa-east-1" : { "64" : "ami-8cd80691", "64HVM" : "NOT_YET_SUPPORTED" }
}
},
"Resources" : {
"CfnUser" : {
"Type" : "AWS::IAM::User",
"Properties" : {
"Path": "/",
"Policies": [ {
"PolicyName": "root",
"PolicyDocument": { "Statement": [ {
"Effect":"Allow",
"Action":"cloudformation:DescribeStackResource",
"Resource":"*"
} ] }
} ]
}
},
"AccessKey" : {
"Type" : "AWS::IAM::AccessKey",
"Properties" : {
"UserName" : { "Ref" : "CfnUser" }
}
},
"MongoSecondary" : {
"Type" : "AWS::CloudFormation::Stack",
"Properties" : {
"TemplateURL" : "https://s3.amazonaws.com/foxy-cfn/MongoDbServer.template",
"Parameters" : {
"KeyName" : { "Ref" : "KeyName" },
"InstanceType" : { "Ref" : "InstanceType" },
"VolumeSize" : { "Ref" : "VolumeSize" },
"AccessKeyId" : { "Ref" : "AccessKey" },
"SecretAccessKey" : {"Fn::GetAtt": ["AccessKey", "SecretAccessKey"]},
"ReplicaSetName" : { "Ref" : "ReplicaSetName" },
"SecurityGroupName" : { "Ref" : "SecurityGroupName" }
}
}
},
"MongoArbiter" : {
"Type" : "AWS::CloudFormation::Stack",
"DependsOn" : "MongoSecondary",
"Properties" : {
"TemplateURL" : "https://s3.amazonaws.com/foxy-cfn/Arbiter.template",
"Parameters" : {
"KeyName" : { "Ref" : "KeyName" },
"ArbiterInstanceType" : { "Ref" : "ArbiterInstanceType" },
"AccessKeyId" : { "Ref" : "AccessKey" },
"SecretAccessKey" : {"Fn::GetAtt": ["AccessKey", "SecretAccessKey"]},
"ReplicaSetName" : { "Ref" : "ReplicaSetName" },
"SecurityGroupName" : { "Ref" : "SecurityGroupName" }
}
}
},
"MongoPrimary" : {
"Type" : "AWS::EC2::Instance",
"DependsOn" : "MongoArbiter",
"Metadata" : {
"AWS::CloudFormation::Init" : {
"config" : {
"packages" : {
}
}
}
},
"Properties" : {
"InstanceType" : { "Ref" : "InstanceType" },
"Tags" : [
{"Key" : "Name", "Value" : "MongoPrimary" },
{"Key" : "Owner", "Value" : "IntegratingStuff" }
],
"ImageId" : { "Fn::FindInMap" : [ "RegionImageZone", { "Ref" : "AWS::Region" },
{ "Fn::FindInMap" : [ "InstanceTypeArch", { "Ref" : "InstanceType" }, "Arch" ] } ] },
"SecurityGroups" : [ { "Ref" : "SecurityGroupName" } ],
"KeyName" : { "Ref" : "KeyName" },
"UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [
"#!/bin/bash\n",
"## Error reporting helper function\n",
"function error_exit\n",
"{\n",
" cfn-signal -e 1 -r \"$1\" '", { "Ref" : "WaitHandleMongoPrimary" }, "'\n",
" exit 1\n",
"}\n",
"## add mongo gpg key\n",
"apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10 >> /tmp/cfn-init.log 2>&1\n",
"echo 'deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen' >> /etc/apt/sources.list.d/10gen.list\n",
"## update package list\n",
"apt-get -y update >> /tmp/cfn-init.log 2>&1\n",
"DEBIAN_FRONTEND=noninteractive apt-get -y install mdadm sysstat lvm2 mongodb-10gen python-setuptools >> /tmp/apt.log 2>&1\n",
"service mongodb stop\n",
"easy_install https://s3.amazonaws.com/cloudformation-examples/aws-cfn-bootstrap-latest.tar.gz\n",
"## Initialize CloudFormation bits\n",
"cfn-init -v -s ", { "Ref" : "AWS::StackName" }, " -r MongoPrimary",
" --access-key ", { "Ref" : "AccessKey" },
" --secret-key ", {"Fn::GetAtt": ["AccessKey", "SecretAccessKey"]},
" --region ", { "Ref" : "AWS::Region" }, " > /tmp/cfn-init.log 2>&1 || error_exit $(</tmp/cfn-init.log)\n",
"## Waiting for EBS mounts to become available\n",
"while [ ! -e /dev/xvdh1 ]; do echo waiting for /dev/xvdh1 to attach; sleep 10; done\n",
"while [ ! -e /dev/xvdh2 ]; do echo waiting for /dev/xvdh2 to attach; sleep 10; done\n",
"while [ ! -e /dev/xvdh3 ]; do echo waiting for /dev/xvdh3 to attach; sleep 10; done\n",
"while [ ! -e /dev/xvdh4 ]; do echo waiting for /dev/xvdh4 to attach; sleep 10; done\n",
"while [ ! -e /dev/xvdh5 ]; do echo waiting for /dev/xvdh5 to attach; sleep 10; done\n",
"while [ ! -e /dev/xvdh6 ]; do echo waiting for /dev/xvdh6 to attach; sleep 10; done\n",
"while [ ! -e /dev/xvdh7 ]; do echo waiting for /dev/xvdh7 to attach; sleep 10; done\n",
"while [ ! -e /dev/xvdh8 ]; do echo waiting for /dev/xvdh8 to attach; sleep 10; done\n",
"## Create RAID10 and persist configuration\n",
"mdadm --verbose --create /dev/md0 --level=10 --chunk=256 --raid-devices=8 /dev/xvdh1 /dev/xvdh2 /dev/xvdh3 /dev/xvdh4 /dev/xvdh5 /dev/xvdh6 /dev/xvdh7 /dev/xvdh8 > /tmp/mdadm.log 2>&1\n",
"echo '`mdadm --detail --scan`' | tee -a /etc/mdadm.conf\n",
"## Set read-ahead on each device\n",
"blockdev --setra 128 /dev/md0\n",
"blockdev --setra 128 /dev/xvdh1\n",
"blockdev --setra 128 /dev/xvdh2\n",
"blockdev --setra 128 /dev/xvdh3\n",
"blockdev --setra 128 /dev/xvdh4\n",
"blockdev --setra 128 /dev/xvdh5\n",
"blockdev --setra 128 /dev/xvdh6\n",
"blockdev --setra 128 /dev/xvdh7\n",
"blockdev --setra 128 /dev/xvdh8\n",
"## Create physical and logical volumes\n",
"dd if=/dev/zero of=/dev/md0 bs=512 count=1\n",
"pvcreate /dev/md0\n",
"vgcreate vg0 /dev/md0\n",
"lvcreate -l 90%vg -n data vg0\n",
"lvcreate -l 5%vg -n log vg0\n",
"lvcreate -l 5%vg -n journal vg0\n",
"## Create filesystems and mount point info\n",
"mke2fs -t ext4 -F /dev/vg0/data > /tmp/mke2fs1.log 2>&1\n",
"mke2fs -t ext4 -F /dev/vg0/log > /tmp/mke2fs2.log 2>&1\n",
"mke2fs -t ext4 -F /dev/vg0/journal > /tmp/mke2fs3.log 2>&1\n",
"mkdir /data\n",
"mkdir /log\n",
"mkdir /journal\n",
"echo '/dev/vg0/data /data ext4 defaults,auto,noatime,nodiratime,noexec 0 0' | tee -a /etc/fstab\n",
"echo '/dev/vg0/log /log ext4 defaults,auto,noatime,nodiratime,noexec 0 0' | tee -a /etc/fstab\n",
"echo '/dev/vg0/journal /journal ext4 defaults,auto,noatime,nodiratime,noexec 0 0' | tee -a /etc/fstab\n",
"## Raise file descriptor limits\n",
"echo '* hard nofile 100000' | tee -a /etc/security/limits.conf\n",
"echo '* soft nofile 100000' | tee -a /etc/security/limits.conf\n",
"ulimit -n 100000\n",
"mount /data > /tmp/mount1.log 2>&1\n",
"mount /log > /tmp/mount2.log 2>&1\n",
"mount /journal > /tmp/mount3.log 2>&1\n",
"ln -s /journal /data/journal\n",
"chown -R mongodb:mongodb /data > /tmp/chown1.log 2>&1\n",
"chown -R mongodb:mongodb /log > /tmp/chown2.log 2>&1\n",
"chown -R mongodb:mongodb /journal > /tmp/chown3.log 2>&1\n",
"## Update mongod configuration\n",
"cat <<EOF > /etc/mongodb.conf\n",
"logpath=/log/mongodb.log\n",
"logappend=true\n",
"fork=true\n",
"dbpath=/data\n",
"rest=true\n",
"replSet=", { "Ref" : "ReplicaSetName" } ,"\n",
"EOF\n",
"## Start mongodb\n",
"service mongodb start > /tmp/mongod-start.log 2>&1\n",
"## Waiting until mongodb has started\n",
"sleep 120\n",
"## Create replica set configuration\n",
"## The following is only needed on the PRIMARY\n",
"HOSTNAME=`curl -s http://169.254.169.254/latest/meta-data/public-hostname`\n",
"cat <<EOF > /tmp/replicaSetConfigInit.js\n",
"config = {_id: \"", { "Ref" : "ReplicaSetName" } ,"\", members : [",
"{_id : 0, host:\"$HOSTNAME:27017\"},",
"{_id : 1, host:\"", { "Fn::GetAtt" : ["MongoSecondary", "Outputs.InstanceName"] },":27017\"},",
"{_id : 2, host:\"", { "Fn::GetAtt" : ["MongoArbiter", "Outputs.ArbiterInstanceName"] },":27017\", arbiterOnly: true }",
"]};\n",
"rs.initiate(config);\n",
"EOF\n",
"/usr/bin/mongo /tmp/replicaSetConfigInit.js > /tmp/replica-setup.log 2>&1\n",
"## CloudFormation signal that setup is complete\n",
"cfn-signal -e 0 -r 'MongoPrimary setup complete' '", { "Ref" : "WaitHandleMongoPrimary" }, "'\n"
] ] } }
}
},
"MongoPrimaryVolume1" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"AvailabilityZone" : { "Fn::GetAtt" : [ "MongoPrimary", "AvailabilityZone" ]}
}
},
"MongoPrimaryVolume2" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"AvailabilityZone" : { "Fn::GetAtt" : [ "MongoPrimary", "AvailabilityZone" ]}
}
},
"MongoPrimaryVolume3" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"AvailabilityZone" : { "Fn::GetAtt" : [ "MongoPrimary", "AvailabilityZone" ]}
}
},
"MongoPrimaryVolume4" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"AvailabilityZone" : { "Fn::GetAtt" : [ "MongoPrimary", "AvailabilityZone" ]}
}
},
"MongoPrimaryVolume5" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"AvailabilityZone" : { "Fn::GetAtt" : [ "MongoPrimary", "AvailabilityZone" ]}
}
},
"MongoPrimaryVolume6" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"AvailabilityZone" : { "Fn::GetAtt" : [ "MongoPrimary", "AvailabilityZone" ]}
}
},
"MongoPrimaryVolume7" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"AvailabilityZone" : { "Fn::GetAtt" : [ "MongoPrimary", "AvailabilityZone" ]}
}
},
"MongoPrimaryVolume8" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"AvailabilityZone" : { "Fn::GetAtt" : [ "MongoPrimary", "AvailabilityZone" ]}
}
},
"MongoPrimaryVolumeMount1" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "MongoPrimary" },
"VolumeId" : { "Ref" : "MongoPrimaryVolume1" },
"Device" : "/dev/sdh1"
}
},
"MongoPrimaryVolumeMount2" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "MongoPrimary" },
"VolumeId" : { "Ref" : "MongoPrimaryVolume2" },
"Device" : "/dev/sdh2"
}
},
"MongoPrimaryVolumeMount3" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "MongoPrimary" },
"VolumeId" : { "Ref" : "MongoPrimaryVolume3" },
"Device" : "/dev/sdh3"
}
},
"MongoPrimaryVolumeMount4" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "MongoPrimary" },
"VolumeId" : { "Ref" : "MongoPrimaryVolume4" },
"Device" : "/dev/sdh4"
}
},
"MongoPrimaryVolumeMount5" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "MongoPrimary" },
"VolumeId" : { "Ref" : "MongoPrimaryVolume5" },
"Device" : "/dev/sdh5"
}
},
"MongoPrimaryVolumeMount6" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "MongoPrimary" },
"VolumeId" : { "Ref" : "MongoPrimaryVolume6" },
"Device" : "/dev/sdh6"
}
},
"MongoPrimaryVolumeMount7" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "MongoPrimary" },
"VolumeId" : { "Ref" : "MongoPrimaryVolume7" },
"Device" : "/dev/sdh7"
}
},
"MongoPrimaryVolumeMount8" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "MongoPrimary" },
"VolumeId" : { "Ref" : "MongoPrimaryVolume8" },
"Device" : "/dev/sdh8"
}
},
"WaitHandleMongoPrimary" : {
"Type" : "AWS::CloudFormation::WaitConditionHandle",
"Properties" : {}
},
"WaitConditionMongoPrimary" : {
"Type" : "AWS::CloudFormation::WaitCondition",
"DependsOn" : "MongoPrimary",
"Properties" : {
"Handle" : { "Ref" : "WaitHandleMongoPrimary" },
"Timeout" : "300"
}
}
},
"Outputs" : {
"PrimaryInstanceName" : {
"Value" : { "Fn::GetAtt" : [ "MongoPrimary", "PublicDnsName" ] },
"Description" : "public DNS name of the MongoPrimary"
},
"SecondaryInstanceName" : {
"Value" : { "Fn::GetAtt" : [ "MongoSecondary", "Outputs.InstanceName" ] },
"Description" : "public DNS name of the MongoSecondary"
},
"ArbiterInstanceName" : {
"Value" : { "Fn::GetAtt" : [ "MongoArbiter", "Outputs.ArbiterInstanceName" ] },
"Description" : "public DNS name of the MongoDB Arbiter"
}
}
}