DevOps Classroom Series – 02/Jan/2020 – Packer

Where Packer Fits in CI/CD

Softwares Required

• Chocolatey: Refer Here
• Git:

choco install git -y

• Visual Studio Code

choco install vscode -y

Create a tomcat Server AMI in AWS

• Create an EC2 machine with Ubuntu AMI
• Login into machine and execute the following commands

sudo apt-get update
sudo apt-cache search jdk
sudo apt-get install openjdk-8-jdk -y
sudo apt-cache search tomcat
sudo apt-get install tomcat8 -y
sudo service tomcat8 status

• Create an AMI of the EC2 Machine
• Image References

• Important info for creating ami in AWS
  • EC2 machines Image (Source AMI => Ubuntu)
  • EC2 machines size (t2.micro)
  • Region (Oregon)
  • Commands to be executed in ubuntu

Install Packer

• Chocolatey in windows

choco install packer -y
# Close and reopen powershell
packer --version
packer --help

• Refer Here for direct downloads.

Packer Json

• Packer Json has sections
  • Builder: Where to create Image
  • Provisioner: Commands to be executed to install software.
  • Post-Processor: any post build activities

Builders

• Builder is a virtualization env where packer can build an Image. Refer Here

Provisioners

• Used for installing software / packages etc. Refer Here for full list of Provisioners