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{
"AWSTemplateFormatVersion": "2010-09-09",
"Description": "Kubernetes on EC2",
"Mappings": {
"RegionMap": {
"eu-central-1": {"AMI": "ami-54ccfa49"},
"ap-northeast-1": {"AMI": "ami-f7b08ff6"},
"sa-east-1": {"AMI": "ami-1304b30e"},
"ap-southeast-2": {"AMI": "ami-0f117e35"},
"ap-southeast-1": {"AMI": "ami-c04f6c92"},
"us-east-1": {"AMI": "ami-7ae66812"},
"us-west-2": {"AMI": "ami-e18dc5d1"},
"us-west-1": {"AMI": "ami-45fbec00"},
"eu-west-1": {"AMI": "ami-a27fd5d5"}
}
},
"Parameters": {
"InstanceType": {
"Description": "EC2 HVM instance type (m3.medium, etc).",
"Type": "String",
"Default": "m3.medium",
"AllowedValues": [
"m3.medium",
"m3.large",
"m3.xlarge",
"m3.2xlarge",
"c3.large",
"c3.xlarge",
"c3.2xlarge",
"c3.4xlarge",
"c3.8xlarge",
"cc2.8xlarge",
"cr1.8xlarge",
"hi1.4xlarge",
"hs1.8xlarge",
"i2.xlarge",
"i2.2xlarge",
"i2.4xlarge",
"i2.8xlarge",
"r3.large",
"r3.xlarge",
"r3.2xlarge",
"r3.4xlarge",
"r3.8xlarge",
"t2.micro",
"t2.small",
"t2.medium"
],
"ConstraintDescription": "Must be a valid EC2 HVM instance type."
},
"ClusterSize": {
"Description": "Number of nodes in cluster (3-12).",
"Default": "3",
"MinValue": "3",
"MaxValue": "12",
"Type": "Number"
},
"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": {
"KubernetesSecurityGroup": {
"Type": "AWS::EC2::SecurityGroup",
"Properties": {
"GroupDescription": "Kubernetes SecurityGroup",
"SecurityGroupIngress": [
{
"IpProtocol": "tcp",
"FromPort": "22",
"ToPort": "22",
"CidrIp": {"Ref": "AllowSSHFrom"}
}
]
}
},
"KubernetesIngress": {
"Type": "AWS::EC2::SecurityGroupIngress",
"Properties": {
"GroupName": {"Ref": "KubernetesSecurityGroup"},
"IpProtocol": "tcp",
"FromPort": "1",
"ToPort": "65535",
"SourceSecurityGroupId": {
"Fn::GetAtt" : [ "KubernetesSecurityGroup", "GroupId" ]
}
}
},
"KubernetesIngressUDP": {
"Type": "AWS::EC2::SecurityGroupIngress",
"Properties": {
"GroupName": {"Ref": "KubernetesSecurityGroup"},
"IpProtocol": "udp",
"FromPort": "1",
"ToPort": "65535",
"SourceSecurityGroupId": {
"Fn::GetAtt" : [ "KubernetesSecurityGroup", "GroupId" ]
}
}
},
"KubernetesMasterInstance": {
"Type": "AWS::EC2::Instance",
"Properties": {
"ImageId": {"Fn::FindInMap" : ["RegionMap", {"Ref": "AWS::Region" }, "AMI"]},
"InstanceType": {"Ref": "InstanceType"},
"KeyName": {"Ref": "KeyPair"},
"SecurityGroups": [{"Ref": "KubernetesSecurityGroup"}],
"UserData": { "Fn::Base64": {"Fn::Join" : ["", [
"#cloud-config\n\n",
"coreos:\n",
" fleet:\n",
" etcd_servers: http://127.0.0.1:4001\n",
" metadata: role=master\n",
" etcd:\n",
" name: etcd\n",
" addr: $private_ipv4:4001\n",
" bind-addr: 0.0.0.0\n",
" peer-addr: $private_ipv4:7001\n",
" cluster-active-size: 1\n",
" etcd-http-read-timeout: 86400\n",
" snapshot: true\n",
" units:\n",
" - name: etcd.service\n",
" command: start\n",
" - name: fleet.service\n",
" command: start\n",
" - name: flannel.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Requires=etcd.service\n",
" After=etcd.service\n",
" After=network-online.target\n",
" Wants=network-online.target\n",
" Description=flannel is an etcd backed overlay network for containers\n\n",
" [Service]\n",
" Type=notify\n",
" ExecStartPre=-/usr/bin/mkdir -p /opt/bin\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/flanneld\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld\n",
" ExecStartPre=-/usr/bin/etcdctl mk /coreos.com/network/config '{\"Network\":\"10.0.0.0/16\"}'\n",
" ExecStart=/opt/bin/flanneld\n",
" - name: kube-apiserver.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Description=Kubernetes API Server\n",
" Documentation=https://github.com/GoogleCloudPlatform/kubernetes\n",
" Requires=etcd.service\n",
" After=etcd.service\n\n",
" [Service]\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/kube-apiserver\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-apiserver\n",
" ExecStart=/opt/bin/kube-apiserver \\\n",
" --address=0.0.0.0 \\\n",
" --port=8080 \\\n",
" --etcd_servers=http://127.0.0.1:4001 \\\n",
" --logtostderr=true\n",
" Restart=always\n",
" RestartSec=10\n",
" - name: kube-controller-manager.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Description=Kubernetes Controller Manager\n",
" Documentation=https://github.com/GoogleCloudPlatform/kubernetes\n",
" Requires=kube-apiserver.service\n",
" After=kube-apiserver.service\n\n",
" [Service]\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/kube-controller-manager\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-controller-manager\n",
" ExecStart=/opt/bin/kube-controller-manager \\\n",
" --master=127.0.0.1:8080 \\\n",
" --logtostderr=true\n",
" Restart=always\n",
" RestartSec=10\n",
" - name: kube-scheduler.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Description=Kubernetes Scheduler\n",
" Documentation=https://github.com/GoogleCloudPlatform/kubernetes\n",
" Requires=kube-apiserver.service\n",
" After=kube-apiserver.service\n\n",
" [Service]\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/kube-scheduler\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-scheduler\n",
" ExecStart=/opt/bin/kube-scheduler --master=127.0.0.1:8080\n",
" Restart=always\n",
" RestartSec=10\n",
" - name: kube-proxy.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Description=Kubernetes Proxy\n",
" Documentation=https://github.com/GoogleCloudPlatform/kubernetes\n",
" Requires=etcd.service\n",
" After=etcd.service\n\n",
" [Service]\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/proxy\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/proxy\n",
" ExecStart=/opt/bin/proxy \\\n",
" --etcd_servers=http://127.0.0.1:4001 \\\n",
" --logtostderr=true\n",
" Restart=always\n",
" RestartSec=10\n",
" - name: kube-register.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Description=Kubernetes Registration Service\n",
" Documentation=https://github.com/kelseyhightower/kube-register\n",
" Requires=kube-apiserver.service\n",
" After=kube-apiserver.service\n\n",
" [Service]\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/kube-register\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/kube-register\n",
" ExecStart=/opt/bin/kube-register \\\n",
" --metadata=role=knode \\\n",
" --fleet-endpoint=unix:///var/run/fleet.sock \\\n",
" --api-endpoint=http://127.0.0.1:8080\n",
" Restart=always\n",
" RestartSec=10\n",
" update:\n",
" group: alpha\n",
" reboot-strategy: off\n"
]]}
}
}
},
"KubernetesNodeLaunchConfig": {
"Type": "AWS::AutoScaling::LaunchConfiguration",
"Properties": {
"ImageId": {"Fn::FindInMap" : ["RegionMap", {"Ref": "AWS::Region" }, "AMI" ]},
"InstanceType": {"Ref": "InstanceType"},
"KeyName": {"Ref": "KeyPair"},
"SecurityGroups": [{"Ref": "KubernetesSecurityGroup"}],
"UserData": { "Fn::Base64": {"Fn::Join" : ["", [
"#cloud-config\n\n",
"coreos:\n",
" fleet:\n",
" etcd_servers: http://", {"Fn::GetAtt":["KubernetesMasterInstance" , "PrivateIp"]}, ":4001\n",
" metadata: role=knode\n",
" units:\n",
" - name: etcd.service\n",
" mask: true\n",
" - name: fleet.service\n",
" command: start\n",
" - name: flannel.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" After=network-online.target\n",
" Wants=network-online.target\n",
" Description=flannel is an etcd backed overlay network for containers\n\n",
" [Service]\n",
" Type=notify\n",
" ExecStartPre=-/usr/bin/mkdir -p /opt/bin\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/flanneld\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld\n",
" ExecStart=/opt/bin/flanneld -etcd-endpoints http://", {"Fn::GetAtt" :["KubernetesMasterInstance" , "PrivateIp"]}, ":4001\n",
" - name: docker.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" After=flannel.service\n",
" Wants=flannel.service\n",
" Description=Docker Application Container Engine\n",
" Documentation=http://docs.docker.io\n\n",
" [Service]\n",
" EnvironmentFile=/run/flannel/subnet.env\n",
" ExecStartPre=/bin/mount --make-rprivate /\n",
" ExecStart=/usr/bin/docker -d --bip=${FLANNEL_SUBNET} --mtu=${FLANNEL_MTU} -s=btrfs -H fd://\n\n",
" [Install]\n",
" WantedBy=multi-user.target\n",
" - name: setup-network-environment.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Description=Setup Network Environment\n",
" Documentation=https://github.com/kelseyhightower/setup-network-environment\n",
" Requires=network-online.target\n",
" After=network-online.target\n\n",
" [Service]\n",
" ExecStartPre=-/usr/bin/mkdir -p /opt/bin\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/setup-network-environment\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/setup-network-environment\n",
" ExecStart=/opt/bin/setup-network-environment\n",
" RemainAfterExit=yes\n",
" Type=oneshot\n",
" - name: kube-kubelet.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Description=Kubernetes Kubelet\n",
" Documentation=https://github.com/GoogleCloudPlatform/kubernetes\n",
" Requires=setup-network-environment.service\n",
" After=setup-network-environment.service\n\n",
" [Service]\n",
" EnvironmentFile=/etc/network-environment\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/kubelet\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/kubelet\n",
" ExecStart=/opt/bin/kubelet \\\n",
" --address=0.0.0.0 \\\n",
" --port=10250 \\\n",
" --hostname_override=${DEFAULT_IPV4} \\\n",
" --etcd_servers=http://", {"Fn::GetAtt" :["KubernetesMasterInstance" , "PrivateIp"]}, ":4001\\\n",
" --logtostderr=true\n",
" Restart=always\n",
" RestartSec=10\n",
" - name: kube-proxy.service\n",
" command: start\n",
" content: |\n",
" [Unit]\n",
" Description=Kubernetes Proxy\n",
" Documentation=https://github.com/GoogleCloudPlatform/kubernetes\n",
" Requires=setup-network-environment.service\n",
" After=setup-network-environment.service\n\n",
" [Service]\n",
" ExecStartPre=/usr/bin/wget -N -P /opt/bin http://storage.googleapis.com/k8s/proxy\n",
" ExecStartPre=/usr/bin/chmod +x /opt/bin/proxy\n",
" ExecStart=/opt/bin/proxy \\\n",
" --etcd_servers=http://", {"Fn::GetAtt" :["KubernetesMasterInstance" , "PrivateIp"]}, ":4001\\\n",
" --logtostderr=true\n",
" Restart=always\n",
" RestartSec=10\n",
" update:\n",
" group: alpha\n",
" reboot-strategy: off\n"
]]}
}
}
},
"KubernetesAutoScalingGroup": {
"Type": "AWS::AutoScaling::AutoScalingGroup",
"Properties": {
"AvailabilityZones": {"Fn::GetAZs": ""},
"LaunchConfigurationName": {"Ref": "KubernetesNodeLaunchConfig"},
"MinSize": "3",
"MaxSize": "12",
"DesiredCapacity": {"Ref": "ClusterSize"}
}
}
},
"Outputs": {
"KubernetesMasterPublicIp": {
"Description": "Public Ip of the newly created Kubernetes Master instance",
"Value": {"Fn::GetAtt": ["KubernetesMasterInstance" , "PublicIp"]}
}
}
}
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