Amazon AWS CloudFormation Template
In order to provide a redundant proxy configuration, the following guide can be followed.
- Deploy a Heimdall Central Manager via the AWS Marketplace. This instance doesn't need to be particuarly large
- Ensure the application works appropriately through a proxy instance hosted on the management server
- Once the application is validated, you can uncheck the proxy option "management server proxy" which will terminate the proxy on this management server
- Deploy a cluster of proxy-only nodes using the below template
Note: Support for this template is exclusively provided for Heimdall Enterprise Edition customers as customers that require this level of redundancy also typically require 24/7 support. Heimdall offers private offer pricing to customers on a negotiated basis if needed. The AMI ID provided below is the current Enterprise AMI ID that is available, however the current AMI ID may change over time. To find the current Enterprise AMI, please search in the "community ami" section of the EC2 launcher, and search for the string "5d2be2df-c328-4d9b-8d6e-badc5705e9a7". This will provide the current marketplace AMI ID to use, i.e.:
Here, the AMI ID to use is: ami-06b8b11db8101d023
If none are found, ensure that you have subscribed to the Heimdall Enterprise Edition offering in the AWS Marketplace, as it may be hidden until subscribed.
The resources created by this template are:
- Network Load Balancer with Listener
- Autoscaling configuration with Target Group
- Scale up and down policies with alarms
- Launch Configuration with instance policy and IAM role
- Security group for proxy EC2 instances
It depends on: * Existing VPC & Subnets * An existing Heimdall Central Manager * SSH Key
All resources will be named based on the stack name as appropriate, and their creation can be reversed by deleting the stack.
Heimdall assumes no responsibility for the charges that may be charged by AWS through the use of this template, as in particular, ouside of the EC2 instances, the network load balancer may incure charges, as explained "here".
AWSTemplateFormatVersion: 2010-09-09
Parameters:
HeimdallProxyAMIID:
Type: String
Default: ami-06b8b11db8101d023
Description: The Enterprise Edition AMI ID to use
HeimdallProxyVPC:
Type: 'AWS::EC2::VPC::Id'
Description: VPC ID for Proxy Use, should generally match the database's VPC being accessed
HeimdallProxyAvailabilityZones:
Type: 'List<AWS::EC2::AvailabilityZone::Name>'
Description: Availability zones for NLB Deployment
HeimdallProxySubnetList:
Type: 'List<AWS::EC2::Subnet::Id>'
Description: >-
Subnet IDs for ELB for Proxy Deployment (ensure to match the AZ's and availability zones selected)
hdHost:
Type: String
Description: Private Hostname of Heimdall Central Manager, do not use the public hostname if present
hdUser:
Type: String
Default: admin
Description: Central Manager Username OR proxy access key from vdb configuration
hdPassword:
Type: String
Description: Central Manager Password OR proxy secret key from vdb configuration
vdbName:
Type: String
Description: VDB Name configured in central manager
ProxyPort:
Description: Database Proxy port
Type: Number
Default: 5432
ConstraintDescription: >-
Provide the port the proxies are expected to run on (typically the same as
the back-end database, i.e. 3306 for mysql, 5432 for postgres, or 1433 for SQL Server), needed to create a security group for the proxies
ProxyMinimum:
Description: Minimum number of proxies
Type: Number
Default: 2
ConstraintDescription: How many proxies should be in operation at minimum
ProxyMaximum:
Description: Maximum number of proxies
Type: Number
Default: 4
ConstraintDescription: How many proxies should be in operation at most
InstanceTypeParameterProxy:
Type: String
Default: c5.xlarge
AllowedValues:
- t3.medium
- c5.large
- c5.xlarge
- c5.2xlarge
- c5.4xlarge
Description: Enter Proxy instance type (autoscaling)
KeyName:
Description: Name of an existing EC2 KeyPair to enable SSH access to the instance
Type: 'AWS::EC2::KeyPair::KeyName'
ConstraintDescription: must be the name of an existing EC2 KeyPair.
Metadata:
Generator: ''
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Description: HA Template for Heimdall Data Access Platform
Resources:
HeimdallProxyIAM:
Type: 'AWS::IAM::Role'
Properties:
Path: /
AssumeRolePolicyDocument: >-
{"Version":"2012-10-17","Statement":[{"Effect":"Allow","Principal":{"Service":"ec2.amazonaws.com"},"Action":"sts:AssumeRole"}]}
MaxSessionDuration: 3600
RoleName: !Join
- '-'
- - !Ref 'AWS::StackName'
- proxy
ManagedPolicyArns:
- 'arn:aws:iam::aws:policy/CloudWatchFullAccess'
Tags:
- Key: Name
Value: !Join
- '-'
- - !Ref 'AWS::StackName'
- proxy
Metadata:
'AWS::CloudFormation::Designer':
id: dc671d3b-807c-4ea9-b368-7e3d534e22e1
HeimdallProxyIAMInstanceProfile:
Type: 'AWS::IAM::InstanceProfile'
Properties:
Path: /
Roles:
- !Ref HeimdallProxyIAM
Metadata:
'AWS::CloudFormation::Designer':
id: 5311a68f-b7ab-48e1-b1d7-9038174cf489
HeimdallProxySecurityGroup:
Type: 'AWS::EC2::SecurityGroup'
Properties:
GroupName: !Join
- '-'
- - !Ref 'AWS::StackName'
- proxySG
GroupDescription: Security group for Heimdall Proxy
VpcId: !Ref HeimdallProxyVPC
SecurityGroupIngress:
- IpProtocol: tcp
CidrIp: 0.0.0.0/0
FromPort: 22
ToPort: 22
- IpProtocol: tcp
CidrIp: 0.0.0.0/0
FromPort: !Ref ProxyPort
ToPort: !Ref ProxyPort
Tags:
- Key: Name
Value: !Join
- '-'
- - !Ref 'AWS::StackName'
- proxy
Metadata:
'AWS::CloudFormation::Designer':
id: d2b3fbb5-c87c-490d-b0ff-5c0804f855f0
ProxyLaunchConfig:
Type: 'AWS::AutoScaling::LaunchConfiguration'
Properties:
AssociatePublicIpAddress: false
IamInstanceProfile: !Ref HeimdallProxyIAMInstanceProfile
ImageId: !Ref HeimdallProxyAMIID
InstanceMonitoring: true
InstanceType: !Ref InstanceTypeParameterProxy
KeyName: !Ref KeyName
SecurityGroups:
- !Ref HeimdallProxySecurityGroup
LaunchConfigurationName: !Join
- '-'
- - !Ref 'AWS::StackName'
- proxy
UserData: !Base64
'Fn::Join':
- ''
- - vdbName=
- !Ref vdbName
- |-
hdRole=proxy
- |-
hdHost=
- !Ref hdHost
- |-
hdPort=8087
- |-
hdUser=
- !Ref hdUser
- |-
hdPassword=
- !Ref hdPassword
- |+
Metadata:
'AWS::CloudFormation::Designer':
id: fbdc2e18-b910-405e-aeed-433c01a5a71b
HeimdallProxyAutoScalingGroup:
Type: 'AWS::AutoScaling::AutoScalingGroup'
Version: 2020-04-22
Properties:
AvailabilityZones: !Ref HeimdallProxyAvailabilityZones
LaunchConfigurationName: !Ref ProxyLaunchConfig
TargetGroupARNs:
- !Ref HeimdallProxyTargetGroup
MinSize: !Ref ProxyMinimum
MaxSize: !Ref ProxyMaximum
Tags:
- Key: Name
Value: !Join
- '-'
- - !Ref 'AWS::StackName'
- proxy
PropagateAtLaunch: true
Metadata:
'AWS::CloudFormation::Designer':
id: 34e5960d-26f6-4d11-aae1-85c02c36b986
HeimdallProxyTargetGroup:
Type: 'AWS::ElasticLoadBalancingV2::TargetGroup'
Properties:
Port: !Ref ProxyPort
Protocol: TCP
VpcId: !Ref HeimdallProxyVPC
TargetGroupAttributes:
- Key: deregistration_delay.timeout_seconds
Value: 60
Tags:
- Key: Name
Value: !Join
- '-'
- - !Ref 'AWS::StackName'
- proxy
Metadata:
'AWS::CloudFormation::Designer':
id: ded7f98f-10d3-4e44-a367-bd3cb1ea347e
HeimdallProxyLoadBalancer:
Type: 'AWS::ElasticLoadBalancingV2::LoadBalancer'
Properties:
Scheme: internal
Type: network
Subnets:
- !Join
- '-'
- !Ref HeimdallProxySubnetList
Tags:
- Key: Name
Value: !Join
- '-'
- - !Ref 'AWS::StackName'
- proxy
Metadata:
'AWS::CloudFormation::Designer':
id: 57399634-3282-4398-94cd-e5b1ab3455bf
HeimdallProxyLoadBalancerListener:
Type: 'AWS::ElasticLoadBalancingV2::Listener'
Properties:
DefaultActions:
- Type: forward
TargetGroupArn: !Ref HeimdallProxyTargetGroup
LoadBalancerArn: !Ref HeimdallProxyLoadBalancer
Port: !Ref ProxyPort
Protocol: TCP
Metadata:
'AWS::CloudFormation::Designer':
id: f5ca956b-6572-44a5-99d9-17899f5a826a
HeimdallProxyScaleUpPolicy:
Type: 'AWS::AutoScaling::ScalingPolicy'
Properties:
AdjustmentType: ChangeInCapacity
AutoScalingGroupName: !Ref HeimdallProxyAutoScalingGroup
Cooldown: '60'
ScalingAdjustment: '1'
Metadata:
'AWS::CloudFormation::Designer':
id: a91d43f5-bb88-4305-8220-8621e84771a4
HeimdallProxyScaleDownPolicy:
Type: 'AWS::AutoScaling::ScalingPolicy'
Properties:
AdjustmentType: ChangeInCapacity
AutoScalingGroupName: !Ref HeimdallProxyAutoScalingGroup
Cooldown: '60'
ScalingAdjustment: '-1'
Metadata:
'AWS::CloudFormation::Designer':
id: 662a6ed5-4d47-488d-89b0-4ff2eba99817
HeimdallProxyCPUAlarmHigh:
Type: 'AWS::CloudWatch::Alarm'
Properties:
AlarmDescription: Scale-up if CPU > 60% for 5 minutes
MetricName: CPUUtilization
Namespace: AWS/EC2
Statistic: Average
Period: '60'
EvaluationPeriods: '5'
Threshold: '60'
AlarmActions:
- !Ref HeimdallProxyScaleUpPolicy
Dimensions:
- Name: AutoScalingGroupName
Value: !Ref HeimdallProxyAutoScalingGroup
ComparisonOperator: GreaterThanThreshold
Metadata:
'AWS::CloudFormation::Designer':
id: f13bafeb-8014-489d-a066-9910c4554ee2
HeimdallProxyCPUAlarmLow:
Type: 'AWS::CloudWatch::Alarm'
Properties:
AlarmDescription: Scale-down if CPU < 40% for 5 minutes
MetricName: CPUUtilization
Namespace: AWS/EC2
Statistic: Average
Period: '60'
EvaluationPeriods: '5'
Threshold: '70'
AlarmActions:
- !Ref HeimdallProxyScaleDownPolicy
Dimensions:
- Name: AutoScalingGroupName
Value: !Ref HeimdallProxyAutoScalingGroup
ComparisonOperator: LessThanThreshold
Metadata:
'AWS::CloudFormation::Designer':
id: fbb5ee8e-a3ea-4616-a3ab-bf77a0f0f012
Outputs:
LoadBalancerUrl:
Description: The hostname for load balanced db access
Value: !GetAtt HeimdallProxyLoadBalancer.DNSName