{
"AWSTemplateFormatVersion" : "2010-09-09",
"Description" : "MongoDB Replica Node 20130621-01",
"Parameters" : {
"KeyName" : {
"Description" : "Name of an existing EC2 KeyPair to enable SSH access",
"Type" : "String"
},
"InstanceType" : {
"Type" : "String",
"Default" : "m1.large",
"AllowedValues" : [ "m1.small", "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)"
},
"VolumeSize" : {
"Description" : "Volume size for each EBS volume",
"Type" : "Number",
"Default" : "10"
},
"AccessKeyId" : {
"Description" : "Access Key ID",
"Type" : "String"
},
"SecretAccessKey" : {
"Description" : "Secret Access Key for the specified Access Key ID",
"Type" : "String"
},
"ReplicaSetName" : {
"Description" : "Name of the MongoDB replica set",
"Type" : "String"
},
"SecurityGroupName" : {
"Description" : "MongoDB replica set security group name",
"Type" : "String"
},
"InstanceZone" : {
"Description" : "AvailabilityZone for this instance",
"Type" : "String"
}
},
"Mappings" : {
"InstanceTypeArch" : {
"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-a73758ce", "64HVM" : "ami-a73758ce" },
"us-west-2" : { "64" : "ami-0358ce33", "64HVM" : "ami-d75bcde7" },
"us-west-1" : { "64" : "ami-3ffed17a", "64HVM" : "ami-47fed102" },
"eu-west-1" : { "64" : "ami-c7c0d6b3", "64HVM" : "ami-d1c0d6a5" },
"ap-southeast-1": { "64" : "ami-fade91a8", "64HVM" : "ami-18de914a" },
"ap-southeast-2": { "64" : "ami-39b23d38", "64HVM" : "ami-2db33c2c" },
"ap-northeast-1": { "64" : "ami-d16bfbeb", "64HVM" : "ami-876bfbbd" },
"sa-east-1" : { "64" : "ami-5253894f", "64HVM" : "ami-38538925" }
}
},
"Resources" : {
"ReplicaSetMemberInstance" : {
"Type" : "AWS::EC2::Instance",
"Metadata" : {
"AWS::CloudFormation::Init" : {
"config" : {
"packages" : {
"yum" : {
"mdadm" : [],
"sysstat" : [],
"xfsprogs" : [],
"ntp" : []
}
},
"files" : {
"/etc/yum.repos.d/10gen.repo" : {
"content" : { "Fn::Join" : ["", [
"[10gen]\n",
"name=10gen Repository\n",
"baseurl=http://downloads-distro.mongodb.org/repo/redhat/os/x86_64\n",
"gpgcheck=0\n"
] ] },
"mode" : "000644",
"owner" : "root",
"group" : "root"
},
"/etc/rc.local" : {
"content" : { "Fn::Join" : ["", [
"#!/bin/sh\n",
"#\n",
"# This script will be executed *after* all the other init scripts.\n",
"# You can put your own initialization stuff in here if you don't\n",
"# want to do the full Sys V style init stuff.\n",
"# \n",
"# See http://docs.mongodb.org/manual/faq/diagnostics/#does-tcp-keepalive-time-affect-sharded-clusters-and-replica-sets\n",
"echo 300 > /proc/sys/net/ipv4/tcp_keepalive_time\n",
"touch /var/lock/subsys/local\n"
] ] },
"mode" : "000644",
"owner" : "root",
"group" : "root"
}
},
"services" : {
"sysvinit" : {
"ntpd" : { "enabled" : "true", "ensureRunning" : "true" }
}
}
}
}
},
"Properties" : {
"InstanceType" : { "Ref" : "InstanceType" },
"ImageId" : { "Fn::FindInMap" : [ "RegionImageZone", { "Ref" : "AWS::Region" },
{ "Fn::FindInMap" : [ "InstanceTypeArch", { "Ref" : "InstanceType" }, "Arch" ] } ] },
"Tags" : [{ "Key" : "Name", "Value" : "MongoReplica" }],
"SecurityGroups" : [ { "Ref" : "SecurityGroupName" } ],
"KeyName" : { "Ref" : "KeyName" },
"AvailabilityZone" : {"Ref" : "InstanceZone" },
"UserData" : { "Fn::Base64" : { "Fn::Join" : ["", [
"#!/bin/bash\n",
"#\n",
"# Sending all output to /tmp/install.log\n",
"#\n",
"exec 2> /tmp/install.log\n",
"exec >> /tmp/install.log\n",
"#\n",
"# Updating CloudFormation scripts\n",
"#\n",
"yum update -y aws-cfn-bootstrap\n",
"# Error reporting helper function\n",
"function error_exit\n",
"{\n",
"/opt/aws/bin/cfn-signal -e 1 -r \"$1\" '", { "Ref" : "WaitHandleReplicaSetMember" }, "'\n",
"exit 1\n",
"}\n",
"## Initialize CloudFormation bits\n",
"/opt/aws/bin/cfn-init -v -s ", { "Ref" : "AWS::StackName" }, " -r ReplicaSetMemberInstance",
" --access-key ", { "Ref" : "AccessKeyId" },
" --secret-key ", {"Ref": "SecretAccessKey" },
" --region ", { "Ref" : "AWS::Region" }, " > /tmp/cfn-init.log 2>&1 || error_exit $(</tmp/cfn-init.log)\n",
"#\n",
"## Variables\n",
"#\n",
"RAIDMEMBERS=4\n",
"## Wait until ALL EBS are connected\n",
"while [ \"$(ls /dev/sdh*|wc -l)\" -lt \"$RAIDMEMBERS\" ]; do sleep 1; done\n",
"#\n",
"# LVM Create with stripe\n",
"#\n",
"#\n",
"# if all devices are ready then\n",
"EBS=($(ls /dev/sdh*))\n",
"if [ ${#EBS[@]} -eq $RAIDMEMBERS ]; then echo \"Desired EBSs ${#EBS[@]} Vs Ready $RAIDMEMBERS : Proceding...\"; pvcreate ${EBS[@]}; else exit; fi\n",
"# if all PVs are ready then\n",
"PVS=($(pvscan | head -n -1 |awk '{print $2}'))\n",
"if [ ${#PVS[@]} -eq $RAIDMEMBERS ]; then echo \"Desired PVs ${#PVS[@]} Vs Ready $RAIDMEMBERS : Proceding...\"; vgcreate vg0 ${PVS[@]}; else exit; fi\n",
"#\n",
"lvcreate -i 4 -I 256 -n mongo -l 100%FREE vg0\n",
"#\n",
"## Tuning read-ahead=ON\n",
"#\n",
"blockdev -v --setra 128 ${EBS[@]}\n",
"blockdev --setra 256 /dev/vg0/mongo\n",
"#\n",
"## Create MongoDB filesystem\n",
"#\n",
"mkfs.xfs -f -L mongo /dev/vg0/mongo\n",
"mkdir -p /var/lib/mongo\n",
"#\n",
"## Update /etc/fstab\n",
"#\n",
"cat << END >> /etc/fstab\n",
"/dev/vg0/mongo /var/lib/mongo xfs noatime,nodiratime,logbufs=8,nodev,noexec 0 0\n",
"END\n",
"#\n",
"## Mounting all new resources\n",
"#\n",
"mount -av\n",
"#\n",
"## Minimum performance tuning: Set limits for mongod user\n",
"#\n",
"cat << END > /etc/security/limits.conf\n",
"mongod soft nofile 64000\n",
"mongod soft nproc 32000\n",
"mongos soft nofile 64000\n",
"mongos soft nproc 32000\n",
"END\n",
"#\n",
"## Updating RPMs and Installing MongoDB\n",
"#\n",
"yum update -y\n",
"yum install mongo-10gen-server -y\n",
"#\n",
"## Create MongoDB config\n",
"#\n",
"cat << END > /etc/mongod.conf\n",
"# mongod.conf\n",
"dbpath=/var/lib/mongo\n",
"logpath=/var/log/mongo/mongod.log\n",
"logappend=true\n",
"fork=true\n",
"replSet=", {"Ref" : "ReplicaSetName"}, "\n",
"# Enable webserver REST\n",
"rest = true\n",
"END\n",
"#\n",
"## Fixing mongod permission on /var/lib/mongo\n",
"#\n",
"chown -Rv mongod:mongod /var/lib/mongo\n",
"#\n",
"## Updating system config and starting MongoDB\n",
"#\n",
"chkconfig mongod on\n",
"service mongod start\n",
"#\n",
"## CloudFormation signal that setup is complete\n",
"/opt/aws/bin/cfn-signal -e 0 -r \"ReplicaSetMemberInstance setup complete\" '", { "Ref" : "WaitHandleReplicaSetMember" }, "'\n"
] ] } }
}
},
"MongoVolume1" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"Tags" : [{ "Key" : "Name", "Value" : "MongoVolume" }],
"AvailabilityZone" : { "Fn::GetAtt" : [ "ReplicaSetMemberInstance", "AvailabilityZone" ]}
}
},
"MongoVolume2" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"Tags" : [{ "Key" : "Name", "Value" : "MongoVolume" }],
"AvailabilityZone" : { "Fn::GetAtt" : [ "ReplicaSetMemberInstance", "AvailabilityZone" ]}
}
},
"MongoVolume3" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"Tags" : [{ "Key" : "Name", "Value" : "MongoVolume" }],
"AvailabilityZone" : { "Fn::GetAtt" : [ "ReplicaSetMemberInstance", "AvailabilityZone" ]}
}
},
"MongoVolume4" : {
"Type" : "AWS::EC2::Volume",
"Properties" : {
"Size" : { "Ref" : "VolumeSize" },
"Tags" : [{ "Key" : "Name", "Value" : "MongoVolume" }],
"AvailabilityZone" : { "Fn::GetAtt" : [ "ReplicaSetMemberInstance", "AvailabilityZone" ]}
}
},
"MongoVolumeMount1" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "ReplicaSetMemberInstance" },
"VolumeId" : { "Ref" : "MongoVolume1" },
"Device" : "/dev/sdh1"
}
},
"MongoVolumeMount2" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "ReplicaSetMemberInstance" },
"VolumeId" : { "Ref" : "MongoVolume2" },
"Device" : "/dev/sdh2"
}
},
"MongoVolumeMount3" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "ReplicaSetMemberInstance" },
"VolumeId" : { "Ref" : "MongoVolume3" },
"Device" : "/dev/sdh3"
}
},
"MongoVolumeMount4" : {
"Type" : "AWS::EC2::VolumeAttachment",
"Properties" : {
"InstanceId" : { "Ref" : "ReplicaSetMemberInstance" },
"VolumeId" : { "Ref" : "MongoVolume4" },
"Device" : "/dev/sdh4"
}
},
"WaitHandleReplicaSetMember" : {
"Type" : "AWS::CloudFormation::WaitConditionHandle",
"Properties" : {}
},
"WaitConditionReplicaSetMember" : {
"Type" : "AWS::CloudFormation::WaitCondition",
"DependsOn" : "ReplicaSetMemberInstance",
"Properties" : {
"Handle" : { "Ref" : "WaitHandleReplicaSetMember" },
"Timeout" : "600"
}
}
},
"Outputs" : {
"ReplicaSetMemberName" : {
"Value" : { "Fn::GetAtt" : [ "ReplicaSetMemberInstance", "PublicDnsName" ] },
"Description" : "public DNS name of the MongoDB Replica Set Member Instance"
}
}
}