AWS starter code

Dependencies

Git Bash
- This is used to access and manipulate the machines
- Download it here (alongisde other git softwrare): https://git-scm.com/downloads
Ruby
- This is used to interact withe the code of the databases
- Installed at: https://www.ruby-lang.org/en/downloads/

Create two AWS instances
- Instructions to this can be seen below under setting up an amazon web server
- DB_README contains instructions how creating the DB instance correctly
- Make a note of the servers IPs
Fork this repositry and download it in an appropriate location
- The various IPs will need to be changed based on the IPs assigned to the servers
Setup the database server
- ./db_setup.sh
Provision the database server
- cd db/
- chmod 777 db_provision.sh
- ./db_provision.sh
- Mongod status will be shown upon end of the provision script
- if no errors are present enter exit
Setup the app server
- ./app_setup.sh
- cd app/
- chmod 777 provision.sh
- cd ..
- ./app/provision.sh
- pm2 start app.js -f will run the app
Access the app
- The below links will lead to the app
- http://app_ip_here/post does not work currently

- app_setup.sh
- db_setup.sh
- app/provision.sh
- db/db_provision.sh
- link urls

Access AWS here https://eu-west-1.console.aws.amazon.com/console/home?region=eu-west-1

Steps to follow

Select EC2
Click on Instances
Launch instance
Select ubuntu server 16.04
- Version dependent on environment wanted
Deploy to the vpc DevOps student network
Create a subnet of EU west 1a.
Enable Public IP
Add storage
- Select 8GiB
Next, add tags
- Name, Then appropriate name
Security groups
- Create new group
  - If already created a group, skip the below instructions previously created group
- Source for all will be My IP
- Add the below rows:
- SSH
- HTTP
- HTTPS
- Custom TCP. Port range: 3000
- Custom TCP. Port range: 8080
- Custom TCP. Port Range: 1024-65535
- This last port is the ephermal port, allowing installation of software
Review and launch
Upon launch it will ask for key pair.
- Select DevOps student.
- Normally an individual key pair would be created
Download the relevant SSH key
- Place it an easy to reference location

Core data overload on Mongod

If mongod shuts down once the app tries to connect to it you may not have correct inbound rules set up
The error shown on mongod with the below command will be "core data overload" sudo systemctl status mongod
To fix this go to DB_README and make sure inbound rules are set per image in the file.

Infastructure as a service

AWS provides server space and computing capacity amongst many other services it offers

What is EC2

EC2 is Amazon Elastic Compute Cloud Capacity. It provides computing capacity over the cloud

What is a security group

Definition

Types