Skip to content

Instantly share code, notes, and snippets.

Embed
What would you like to do?
{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "CoreOS on EC2: http://coreos.com/docs/running-coreos/cloud-providers/ec2/",
"Mappings" : {
"RegionMap" : {
"eu-central-1" : {
"AMI" : "ami-eae5ddf7"
},
"ap-northeast-1" : {
"AMI" : "ami-1a6fca1a"
},
"us-gov-west-1" : {
"AMI" : "ami-e99fffca"
},
"sa-east-1" : {
"AMI" : "ami-b1cb49ac"
},
"ap-southeast-2" : {
"AMI" : "ami-23641e19"
},
"ap-southeast-1" : {
"AMI" : "ami-da030788"
},
"us-east-1" : {
"AMI" : "ami-93ea17f8"
},
"us-west-2" : {
"AMI" : "ami-5d4d486d"
},
"us-west-1" : {
"AMI" : "ami-c967938d"
},
"eu-west-1" : {
"AMI" : "ami-5f2f5528"
}
}
},
"Parameters": {
"InstanceType" : {
"Description" : "EC2 HVM instance type (m3.medium, etc).",
"Type" : "String",
"Default" : "m3.medium",
"ConstraintDescription" : "Must be a valid EC2 HVM instance type."
},
"ClusterSize": {
"Default": "3",
"MinValue": "3",
"MaxValue": "12",
"Description": "Number of nodes in cluster (3-12).",
"Type": "Number"
},
"DiscoveryURL": {
"Description": "An unique etcd cluster discovery URL. Grab a new token from https://discovery.etcd.io/new?size=<your cluster size>",
"Type": "String"
},
"AdvertisedIPAddress": {
"Description": "Use 'private' if your etcd cluster is within one region or 'public' if it spans regions or cloud providers.",
"Default": "private",
"AllowedValues": ["private", "public"],
"Type": "String"
},
"AllowSSHFrom": {
"Description": "The net block (CIDR) that SSH is available to.",
"Default": "0.0.0.0/0",
"Type": "String"
},
"KeyPair" : {
"Description" : "The name of an EC2 Key Pair to allow SSH access to the instance.",
"Type" : "String"
}
},
"Resources": {
"CoreOSSecurityGroup": {
"Type": "AWS::EC2::SecurityGroup",
"Properties": {
"GroupDescription": "CoreOS SecurityGroup",
"SecurityGroupIngress": [
{"IpProtocol": "tcp", "FromPort": "22", "ToPort": "22", "CidrIp": {"Ref": "AllowSSHFrom"}}
]
}
},
"Ingress4001": {
"Type": "AWS::EC2::SecurityGroupIngress",
"Properties": {
"GroupName": {"Ref": "CoreOSSecurityGroup"}, "IpProtocol": "tcp", "FromPort": "4001", "ToPort": "4001", "SourceSecurityGroupId": {
"Fn::GetAtt" : [ "CoreOSSecurityGroup", "GroupId" ]
}
}
},
"Ingress2379": {
"Type": "AWS::EC2::SecurityGroupIngress",
"Properties": {
"GroupName": {"Ref": "CoreOSSecurityGroup"}, "IpProtocol": "tcp", "FromPort": "2379", "ToPort": "2379", "SourceSecurityGroupId": {
"Fn::GetAtt" : [ "CoreOSSecurityGroup", "GroupId" ]
}
}
},
"Ingress2380": {
"Type": "AWS::EC2::SecurityGroupIngress",
"Properties": {
"GroupName": {"Ref": "CoreOSSecurityGroup"}, "IpProtocol": "tcp", "FromPort": "2380", "ToPort": "2380", "SourceSecurityGroupId": {
"Fn::GetAtt" : [ "CoreOSSecurityGroup", "GroupId" ]
}
}
},
"CoreOSServerAutoScale": {
"Type": "AWS::AutoScaling::AutoScalingGroup",
"Properties": {
"AvailabilityZones": {"Fn::GetAZs": ""},
"LaunchConfigurationName": {"Ref": "CoreOSServerLaunchConfig"},
"MinSize": "3",
"MaxSize": "12",
"DesiredCapacity": {"Ref": "ClusterSize"},
"Tags": [
{"Key": "Name", "Value": { "Ref" : "AWS::StackName" }, "PropagateAtLaunch": true}
]
}
},
"CoreOSServerLaunchConfig": {
"Type": "AWS::AutoScaling::LaunchConfiguration",
"Properties": {
"ImageId" : { "Fn::FindInMap" : [ "RegionMap", { "Ref" : "AWS::Region" }, "AMI" ]},
"InstanceType": {"Ref": "InstanceType"},
"KeyName": {"Ref": "KeyPair"},
"SecurityGroups": [{"Ref": "CoreOSSecurityGroup"}],
"UserData" : { "Fn::Base64":
{ "Fn::Join": [ "", [
"#cloud-config\n\n",
"coreos:\n",
" update:\n",
" reboot-strategy: etcd-lock\n",
" etcd2:\n",
" discovery: ", { "Ref": "DiscoveryURL" }, "\n",
" advertise-client-urls: http://$", { "Ref": "AdvertisedIPAddress" }, "_ipv4:2379\n",
" initial-advertise-peer-urls: http://$", { "Ref": "AdvertisedIPAddress" }, "_ipv4:2380\n",
" listen-client-urls: http://0.0.0.0:2379,http://0.0.0.0:4001\n",
" listen-peer-urls: http://$", { "Ref": "AdvertisedIPAddress" }, "_ipv4:2380\n",
" units:\n",
" - name: etcd2.service\n",
" command: start\n",
" - name: fleet.service\n",
" command: start\n"
] ]
}
},
"BlockDeviceMappings": [
{
"DeviceName": "/dev/xvda",
"Ebs": {"VolumeSize": "50"}
}
]
}
}
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment