deepstruggleinspection

Pre-requisite

• aws cli
• packer
• terraform
• jq
• whois

Please setup your aws cli with aws configure and make sure you have full access right

Your AWS account should have a default vpc and subnet to start work with

Q1

• req_cnt.sh - count requests in access log

Usage:

req_cnt.sh -f [file.gz]

• top_country.sh - find top country in the access log

Usage:

top_country.sh -f [file.gz]

• top10_host.sh - find top 10 host with in period with access log

Usage:

top10_host.sh -f [file.gz] -s [start datetime - dd/mm/yyyy:hh:mm:ss] -e [end datetime - dd/mm/yyyy:hh:mm:ss]

Assumption: logs are in apache log format and in order

Q2

A script to ssh to ec2 node by Name tag

Usage:

awssh.sh [ec2 name tag]

Q3

This is an url-shortener application in golang

Config

create variables.pkvars.hcl under packer folder with following attributes

aws_subnet_id       = "subnet-xxxxxx"
aws_region          = "us-east-1"
aws_account_id      = "xxxx"
base_ami            = "ami-042e8287309f5df03" # ubuntu 20.04 LTS
port                = "8080"
domain              = "example.com"
dynamodb_table_name = "short-url-map-xxxx"

create terraform.tfvars under tf folder with following attributes

aws_account_id      = ""
dynamodb_table_name = "short-url-map-xxxx"
subnet_a_cidr       = "172.31.20.0/24"
subnet_b_cidr       = "172.31.30.0/24"
subnet_c_cidr       = "172.31.40.0/24"
asg_min             = 2
asg_max             = 5
dev_ssh_key         = "" # ssh pub key
dev_ssh_cidr        = "x.x.x.x/32"

Initialize

This script is to build base application image and apply tf resources

./init.sh

Deploy

This script is to build versioned application ami using the base image and update the ami in launch configuration using terraform

Autoscaling group would gracefully roll out ec2 instance with newly packed ami after launch configuration updated

./deploy.sh