go-aws

go-aws

Introduction

This program facilitates the useage of AWS services during the development phase. The functionality this program is providing will be growing.

Prerequisites

aws account

go version >= 1.13

Setup

The program reads two environment variables to get the default aws credentials and region (GO_AWS_CRED, GO_AWS_REGION).

In order to enable the program from accessing user's aws credentials, the name of desired aws account should be exported as environment variable.

Example:

if your ~/.aws/credentials files has two accounts in it, and you want to choose the first one to be applied by the program;

[my-aws-account-1]
  
aws_access_key_id=xxxxxxxxxxxxxxxxxxxxxx
aws_secret_access_key=xxxxxxxxxxxxxxxxxxxxxxx

[my-aws-account-2]
  
aws_access_key_id=xxxxxxxxxxxxxxxxxxxxxx
aws_secret_access_key=xxxxxxxxxxxxxxxxxxxxxxx

then you have to define the credential variable GO_AWS_CRED as following: export GO_AWS_CRED='my-aws-account-1' in addation to defining the region variable GO_AWS_REGION (i.e. export GO_AWS_REGION='eu-west-1')

Note if you are using mac and added the variables into .bashrc then you can add the code bellow into your bash_profile to have the global variables permanently defined.

if [ -f ~/.bashrc ]; then
   . ~/.bashrc
fi

After cloning the repo, run the setup.sh

source ./setup.sh

this command will buld the go binaries and create the file in /usr/local/bin/goaws

then add an alias to the program

alias goaws='/usr/local/bin/goaws'

Usage

update the hostnames in ~/.ssh/config file with actual ip addresses

goaws refresh

This command will update hosts in the ~/.ssh/config file that have matching names with the values of Name tag of EC2 machines

~/.ssh/config:

Host blinchik_bastion
    HostName xx.xxx.x.xx
    User ubuntu
    IdentityFile /Users/xxx/.ssh/private_key.pem

Note: identical ip addresses will be overwriten

AWS EC2 Tags of specific machine:

in this case, the HostName of the Host blinchik_bastion blinchik_bastion