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serverless.yml
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serverless.yml
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service: aws-eks-spot-serverless-demo
provider:
name: aws
runtime: python3.6
stage: ${opt:stage, 'dev'}
region: us-east-1
variableSyntax: "\\${((?!AWS)[ ~:a-zA-Z0-9._'\",\\-\\/\\(\\)]+?)}"
functions:
VideoUploadLambdaFunction:
handler: upload_video.handler
events:
- s3:
bucket: "${self:service}-${self:provider.stage}-uploads"
event: s3:ObjectCreated:*
VideoThumbnailLambdaFunction:
handler: upload_thumbnail.handler
events:
- s3:
bucket: "${self:service}-${self:provider.stage}-thumbnails"
event: s3:ObjectCreated:*
resources:
Resources:
KubernetesClusterVPC:
Type: AWS::EC2::VPC
Properties:
CidrBlock: "10.0.0.0/16"
EnableDnsSupport: true
EnableDnsHostnames: true
Tags:
-
Key: Name
Value: ${self:service}-${self:provider.stage}
KubernetesClusterSubnetA:
Type: AWS::EC2::Subnet
Properties:
VpcId:
Ref: KubernetesClusterVPC
CidrBlock: 10.0.0.0/24
AvailabilityZone: "us-east-1a"
Tags:
-
Key: Name
Value: ${self:service}-${self:provider.stage}-subnet-a
KubernetesClusterSubnetB:
Type: AWS::EC2::Subnet
Properties:
VpcId:
Ref: KubernetesClusterVPC
CidrBlock: 10.0.1.0/24
AvailabilityZone: "us-east-1b"
Tags:
-
Key: Name
Value: ${self:service}-${self:provider.stage}
KubernetesClusterInternetGateway:
Type: AWS::EC2::InternetGateway
Properties:
Tags:
-
Key: Name
Value: ${self:service}-${self:provider.stage}
KubernetesClusterInternetGatewayAttachment:
Type: AWS::EC2::VPCGatewayAttachment
Properties:
InternetGatewayId:
Ref: KubernetesClusterInternetGateway
VpcId:
Ref: KubernetesClusterVPC
KubernetesClusterInternetGatewayRouteTable:
Type: AWS::EC2::RouteTable
Properties:
VpcId:
Ref: KubernetesClusterVPC
Tags:
-
Key: Name
Value: ${self:service}-${self:provider.stage}
KubernetesClusterInternetGatewayToInternetRoute:
Type: AWS::EC2::Route
DependsOn: KubernetesClusterInternetGateway
Properties:
RouteTableId:
Ref: KubernetesClusterInternetGatewayRouteTable
DestinationCidrBlock: 0.0.0.0/0
GatewayId:
Ref: KubernetesClusterInternetGateway
KubernetesClusterSubnetAtoInternetRouteAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId:
Ref: KubernetesClusterInternetGatewayRouteTable
SubnetId:
Ref: KubernetesClusterSubnetA
KubernetesClusterSubnetBtoInternetRouteAssociation:
Type: AWS::EC2::SubnetRouteTableAssociation
Properties:
RouteTableId:
Ref: KubernetesClusterInternetGatewayRouteTable
SubnetId:
Ref: KubernetesClusterSubnetB
EksKubernetesServiceRole:
Type: AWS::IAM::Role
Properties:
RoleName: EksKubernetesServiceRole
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Service:
- eks.amazonaws.com
Action: sts:AssumeRole
ManagedPolicyArns:
- 'arn:aws:iam::aws:policy/AmazonEKSClusterPolicy'
- 'arn:aws:iam::aws:policy/AmazonEKSServicePolicy'
KubernetesClusterMasterSecurityGroup:
Type: AWS::EC2::SecurityGroup
Properties:
GroupDescription: Allow EKS Cluster communication with worker nodes
VpcId:
Ref: KubernetesClusterVPC
SecurityGroupEgress:
- IpProtocol: -1
FromPort: 0
ToPort: 0
CidrIp: 0.0.0.0/0
Tags:
-
Key: Name
Value: ${self:service}-${self:provider.stage}
# OPTIONAL: Allow inbound traffic from your local workstation external IP
# to the Kubernetes. You will need to replace A.B.C.D below with
# your real IP. Services like icanhazip.com can help you find this.
KubernetesClusterMasterFromWorkstationSecurityGroupRule:
Type: AWS::EC2::SecurityGroupIngress
Properties:
# CidrIp: A.B.C.D/32
CidrIp: 138.68.101.60/32
Description: Allow workstation to communicate with the EKS cluster API Server
FromPort: 443
IpProtocol: tcp
ToPort: 443
GroupId:
Ref: KubernetesClusterMasterSecurityGroup
KubernetesCluster:
Type: "AWS::EKS::Cluster"
Properties:
Name: ${self:service}-${self:provider.stage}
ResourcesVpcConfig:
SecurityGroupIds:
- Ref: KubernetesClusterMasterSecurityGroup
SubnetIds:
- Ref: KubernetesClusterSubnetA
- Ref: KubernetesClusterSubnetB
RoleArn:
Fn::GetAtt: [ EksKubernetesServiceRole, Arn ]
Version: "1.10"
# EKS Nodes
NodeInstanceRole:
Type: AWS::IAM::Role
Properties:
AssumeRolePolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Principal:
Service:
- ec2.amazonaws.com
Action: sts:AssumeRole
Path: "/"
Policies:
-
PolicyName: node
PolicyDocument:
Version: '2012-10-17'
Statement:
- Effect: Allow
Action:
- ec2:Describe*
- ecr:GetAuthorizationToken
- ecr:BatchCheckLayerAvailability
- ecr:GetDownloadUrlForLayer
- ecr:GetRepositoryPolicy
- ecr:DescribeRepositories
- ecr:ListImages
- ecr:BatchGetImage
Resource: "*"
-
PolicyName: cni
PolicyDocument:
Version: '2012-10-17'
Statement:
-
Effect: Allow
Action:
- ec2:DescribeNetworkInterfaces
- ec2:DescribeInstances
- ec2:CreateNetworkInterface
- ec2:AttachNetworkInterface
- ec2:DeleteNetworkInterface
- ec2:DetachNetworkInterface
- ec2:ModifyNetworkInterfaceAttribute
- ec2:AssignPrivateIpAddresses
- tag:TagResources
Resource: "*"
-
PolicyName: eks
PolicyDocument:
Version: '2012-10-17'
Statement:
-
Effect: Allow
Action:
- eks:DescribeCluster
Resource: "*"
-
PolicyName: s3-management
PolicyDocument:
Version: '2012-10-17'
Statement:
-
Effect: Allow
Action:
- s3:PutObject
- s3:GetObject
- s3:ListBucket
- s3:DeleteObject
Resource:
- Fn::GetAtt: [ S3BucketAwseksspotserverlessdemodevuploads, Arn ]
- Fn::Join:
- "/"
-
- Fn::GetAtt: [ S3BucketAwseksspotserverlessdemodevuploads, Arn ]
- "*"
-
Effect: Allow
Action:
- s3:PutObject
- s3:GetObject
- s3:ListBucket
- s3:DeleteObject
Resource:
- Fn::GetAtt: [ S3BucketAwseksspotserverlessdemodevthumbnails, Arn ]
- Fn::Join:
- "/"
-
- Fn::GetAtt: [ S3BucketAwseksspotserverlessdemodevthumbnails, Arn ]
- "*"
-
Effect: Allow
Action:
- s3:HeadBucket
Resource: '*'
-
PolicyName: ClusterAutoscaler
PolicyDocument:
Version: '2012-10-17'
Statement:
-
Effect: Allow
Action:
- ec2:DescribeRegions
- ec2:DescribeInstances
Resource: "*"
-
Effect: Allow
Action:
- ecr:GetAuthorizationToken
- ecr:BatchCheckLayerAvailability
- ecr:GetDownloadUrlForLayer
- ecr:GetRepositoryPolicy
- ecr:DescribeRepositories
- ecr:ListImages
- ecr:BatchGetImage
Resource: "*"
-
Effect: Allow
Action:
- autoscaling:DescribeAutoScalingGroups
- autoscaling:DescribeAutoScalingInstances
- autoscaling:DescribeLaunchConfigurations
- autoscaling:SetDesiredCapacity
- autoscaling:DescribeTags
- autoscaling:TerminateInstanceInAutoScalingGroup
Resource: "*"
NodeInstanceProfile:
Type: AWS::IAM::InstanceProfile
Properties:
Path: "/"
Roles:
- Ref: NodeInstanceRole
NodeSecurityGroup:
Type: AWS::EC2::SecurityGroup
Properties:
GroupDescription: Security group for all nodes in the EKS cluster
VpcId:
Ref: KubernetesClusterVPC
Tags:
-
Key: Name
Value: ${self:service}-${self:provider.stage}
NodeSecurityGroupIngress:
Type: AWS::EC2::SecurityGroupIngress
Properties:
Description: Allow node to communicate with each other
GroupId:
Ref: NodeSecurityGroup
SourceSecurityGroupId:
Ref: NodeSecurityGroup
IpProtocol: '-1'
FromPort: 0
ToPort: 65535
NodeSecurityGroupFromWorkstationIngress:
Type: AWS::EC2::SecurityGroupIngress
Properties:
Description: Allow workstation to connect to EC2 nodes (for debugging)
GroupId:
Ref: NodeSecurityGroup
IpProtocol: 'tcp'
FromPort: 22
ToPort: 22
CidrIp: 138.68.101.60/32
NodeSecurityGroupFromControlPlaneIngress:
Type: AWS::EC2::SecurityGroupIngress
Properties:
Description: Allow worker Kubelets and pods to receive communication from the cluster control plane
GroupId:
Ref: NodeSecurityGroup
SourceSecurityGroupId:
Ref: KubernetesClusterMasterSecurityGroup
IpProtocol: tcp
FromPort: 1025
ToPort: 65535
KubernetesClusterMasterSecurityGroupIngressFromNodes:
Type: AWS::EC2::SecurityGroupIngress
Properties:
Description: Allow pods to communicate with the cluster API Server
GroupId:
Ref: KubernetesClusterMasterSecurityGroup
SourceSecurityGroupId:
Ref: NodeSecurityGroup
IpProtocol: tcp
ToPort: 443
FromPort: 443
SpotNodeLaunchConfig:
Type: AWS::AutoScaling::LaunchConfiguration
Properties:
AssociatePublicIpAddress: true
# https://docs.aws.amazon.com/eks/latest/userguide/eks-optimized-ami.html
ImageId: ami-0440e4f6b9713faf6
#ImageId: ami-dea4d5a1
InstanceType: m3.medium
IamInstanceProfile:
Ref: NodeInstanceProfile
KeyName: 'Lenovo T410'
# Maximum Spot instance price (not launch if more)
SpotPrice: 1
SecurityGroups:
- Ref: NodeSecurityGroup
UserData:
Fn::Base64:
Fn::Join:
- ""
-
- "#!/bin/bash -xe\n"
- "CA_CERTIFICATE_DIRECTORY=/etc/kubernetes/pki"
- "\n"
- "CA_CERTIFICATE_FILE_PATH=$CA_CERTIFICATE_DIRECTORY/ca.crt"
- "\n"
- "MODEL_DIRECTORY_PATH=~/.aws/eks"
- "\n"
- "MODEL_FILE_PATH=$MODEL_DIRECTORY_PATH/eks-2017-11-01.normal.json"
- "\n"
- "mkdir -p $CA_CERTIFICATE_DIRECTORY"
- "\n"
- "mkdir -p $MODEL_DIRECTORY_PATH"
- "\n"
- Fn::Join:
- ""
-
- "aws eks describe-cluster --region=${self:provider.region} --name="
- Ref: KubernetesCluster
- " --query 'cluster.{certificateAuthorityData: certificateAuthority.data, endpoint: endpoint}' > /tmp/describe_cluster_result.json"
- "\n"
- "cat /tmp/describe_cluster_result.json | grep certificateAuthorityData | awk '{print $2}' | sed 's/[,\"]//g' | base64 -d > $CA_CERTIFICATE_FILE_PATH"
- "\n"
- "MASTER_ENDPOINT=$(cat /tmp/describe_cluster_result.json | grep endpoint | awk '{print $2}' | sed 's/[,\"]//g')"
- "\n"
- "INTERNAL_IP=$(curl -s http://169.254.169.254/latest/meta-data/local-ipv4)"
- "\n"
- "sed -i s,MASTER_ENDPOINT,$MASTER_ENDPOINT,g /var/lib/kubelet/kubeconfig"
- "\n"
- Fn::Join:
- ""
-
- "sed -i s,CLUSTER_NAME,"
- Ref: KubernetesCluster
- ",g /var/lib/kubelet/kubeconfig"
- "\n"
- "sed -i s,REGION,${AWS::Region},g /etc/systemd/system/kubelet.service"
- "\n"
- "sed -i s,MAX_PODS,'12 --node-labels lifecycle=Ec2Spot',g /etc/systemd/system/kubelet.service"
- "\n"
- "sed -i s,INTERNAL_IP,$INTERNAL_IP,g /etc/systemd/system/kubelet.service"
- "\n"
- "DNS_CLUSTER_IP=10.100.0.10"
- "\n"
- "if [[ $INTERNAL_IP == 10.* ]] ; then DNS_CLUSTER_IP=172.20.0.10; fi"
- "\n"
- "sed -i s,DNS_CLUSTER_IP,$DNS_CLUSTER_IP,g /etc/systemd/system/kubelet.service"
- "\n"
- "sed -i s,CERTIFICATE_AUTHORITY_FILE,$CA_CERTIFICATE_FILE_PATH,g /var/lib/kubelet/kubeconfig"
- "\n"
- "sed -i s,CLIENT_CA_FILE,$CA_CERTIFICATE_FILE_PATH,g /etc/systemd/system/kubelet.service"
- "\n"
- "systemctl daemon-reload"
- "\n"
- "systemctl restart kubelet"
- "\n"
- "/opt/aws/bin/cfn-signal -e $? "
- " --stack ${self:service}-${self:provider.stage} "
- " --resource NodeGroup "
- " --region ${self:provider.region}"
SpotNodeGroup:
Type: AWS::AutoScaling::AutoScalingGroup
Properties:
DesiredCapacity: 1
LaunchConfigurationName:
Ref: SpotNodeLaunchConfig
# To allow rolling updates
MinSize: 0
MaxSize: 2
VPCZoneIdentifier:
- Ref: KubernetesClusterSubnetA
- Ref: KubernetesClusterSubnetB
Tags:
-
Key: Name
Value: ${self:service}-${self:provider.stage}
PropagateAtLaunch: true
- Key:
Fn::Join:
- "/"
-
- "kubernetes.io"
- "cluster"
- "${self:service}-${self:provider.stage}"
Value: 'owned'
PropagateAtLaunch: 'true'
UpdatePolicy:
AutoScalingRollingUpdate:
MinInstancesInService: 0
MaxBatchSize: 1
Outputs:
KubernetesClusterName:
Description: "EKS Cluster Name"
Value:
Ref: KubernetesCluster
KubernetesClusterEndpoint:
Description: "EKS Cluster Endpoint"
Value:
Fn::GetAtt: [ KubernetesCluster, Endpoint ]
KubernetesClusterCertificateAuthorityData:
Description: "EKS Cluster Certificate Authority Data"
Value:
Fn::GetAtt: [ KubernetesCluster, CertificateAuthorityData ]
KubernetesClusterNodesRoleArn:
Description: "EKS Cluster Nodes Role Arn"
Value:
Fn::GetAtt: [ NodeInstanceRole, Arn ]