Sentry Self Hosted Instance on EC2 using Terraform

It will provision a Sentry self-hosted setup on AWS EC2 Instance. It will perform the below tasks -

• Create a Private key and file
• Create a Key Pair
• Create Security groups (One for EC2 Instance and another for Application LB)
• Upload Self Signed Certificate to IAM
• Create Application Load Balancer using the Self Signed Certificate
• Create Listener for Application Load Balancer
• Create Target Group
• Perform Target Group Attachment
• Create AWS EC2 instance with user data automating the sentry install on this instance to the point of hitting the sentry login screen using the Application LB DNS Name

Requirements

• Terraform version >= v0.14.4
• AWS Provider >= v3.0
• Default VPC
• Default Public Subnet
• Self signed certificate in pem format with file names private.pem and public.pem present in the same folder as terraform and required '.tf' files

Assumptions

• AWS Account is provisioned
• AWS CLI configured
• Terraform is installed

Inputs

Name	Description	Type	Default	Required
instance_type	EC2 Instance Type	string	t2.medium	yes
ami	AMI ID	string	xxxxx	yes
region	Region name	string	xxxxx	yes
vpc_id	Default VPC ID	string	xxxxx	yes
subnet	Subnet ID 1	string	xxxxx	yes
subnet	Subnet ID 2	string	xxxxx	yes

Outputs

Name	Description
EC2InstancePublicIP	Public IP of the EC2 Instance
SentryLoginURL	DNS name of the Application Load Balancer

Improvement Scope

• Creating web user for Sentry Login
• Use AutoScaling Group for spawning the instance to achieve resiliancy