SKILL.md
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variable "region" {
type = string
default = "us-west-2"
}
locals {
timestamp = regex_replace(timestamp(), "[- TZ:]", "")
}
source "amazon-ebs" "ubuntu" {
region = var.region
instance_type = "t3.micro"
source_ami_filter {
filters = {
name = "ubuntu/images/ubuntu-jammy-22.04-amd64-server-"
root-device-type = "ebs"
virtualization-type = "hvm"
}
most_recent = true
owners = ["099720109477"] # Canonical
}
ssh_username = "ubuntu"
ami_name = "my-app-${local.timestamp}"
tags = {
Name = "my-app"
BuildDate = local.timestamp
}
}
build {
sources = ["source.amazon-ebs.ubuntu"]
provisioner "shell" {
inline = [
"sudo apt-get update",
"sudo apt-get upgrade -y",
]
}
}
## Common Source AMI Filters
### Ubuntu 22.04 LTS
source_ami_filter {
filters = {
name = "ubuntu/images/ubuntu-jammy-22.04-amd64-server-"
root-device-type = "ebs"
virtualization-type = "hvm"
}
most_recent = true
owners = ["099720109477"] # Canonical
}
### Amazon Linux 2023
source_ami_filter {
filters = {
name = "al2023-ami-*-x86_64"
root-device-type = "ebs"
virtualization-type = "hvm"
}
most_recent = true
owners = ["amazon"]
}
## Multi-Region AMI
source "amazon-ebs" "ubuntu" {
region = "us-west-2"
instance_type = "t3.micro"
source_ami_filter {
filters = {
name = "ubuntu/images/ubuntu-jammy-22.04-amd64-server-"
}
most_recent = true
owners = ["099720109477"]
}
ssh_username = "ubuntu"
ami_name = "my-app-${local.timestamp}"
# Copy to additional regions
ami_regions = ["us-east-1", "us-east-2", "eu-west-1"]
}
## Authentication
Packer uses AWS credential resolution:
- Environment variables: `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`
- AWS credentials file: `~/.aws/credentials`
- IAM instance profile (when running on EC2)
export AWS_ACCESS_KEY_ID="your-access-key"
export AWS_SECRET_ACCESS_KEY="your-secret-key"
export AWS_REGION="us-west-2"
packer build .
## Build Commands
Initialize plugins
packer init .
Validate template
packer validate .
Build AMI
packer build .
Build with variables
packer build -var "region=us-east-1" .