AWS Helpers

install-ssm-agent.sh

#!/bin/bash

set -eEuo pipefail

ARCH="$(arch)"
PACKAGE_ARCH="${ARCH/x86_64/amd64}"
PACKAGE_ARCH="${PACKAGE_ARCH/aarch64/arm64}"
PACKAGE_URL=""
PACKAGE_FILE=""

source /etc/os-release
cd "$HOME"

if [[ "$ID_LIKE" == *debian* ]]; then
	PACKAGE_URL="https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/debian_${PACKAGE_ARCH}/amazon-ssm-agent.deb"	
	PACKAGE_FILE="${PACKAGE_URL##*/}"
elif [[ "$ID_LIKE" == *rhel* ]] || [[ "$ID" == "suse" ]] ; then
	PACKAGE_URL="https://s3.amazonaws.com/ec2-downloads-windows/SSMAgent/latest/linux_${PACKAGE_ARCH}/amazon-ssm-agent.rpm"
	PACKAGE_FILE="${PACKAGE_URL##*/}"
else
	>2 echo "could not determine package URL (ID=${ID:-} ID_LIKE=${ID_LIKE:-} VERSION_ID=${VERSION_ID:-})"
	exit 1
fi

# yum and dnf do support install from URL
if hash yum 2>/dev/null; then
 	sudo yum install -y "$PACKAGE_URL"
elif hash dnf 2>/dev/null; then
 	sudo dnf install -y python3 "$PACKAGE_URL"
else
	# Get the package
	if hash wget 2>/dev/null; then
		wget "$PACKAGE_URL" -O "$PACKAGE_FILE"
	elif hash curl 2>/dev/null; then
		curl -sSfL  "$PACKAGE_URL" -o "$PACKAGE_FILE"
	else
		>2 echo "no program to download SSM Agent"
		exit 1
	fi
	# Intall the package
	if hash apt 2>/dev/null; then
		sudo apt install "$(realpath $PACKAGE_FILE)"
	elif hash apt-get 2>/dev/null; then
		sudo apt-get install "$(realpath $PACKAGE_FILE)"
	elif hash dpkg 2>/dev/null; then
		sudo dpkg -i "$PACKAGE_FILE"
	elif hash rpm 2>/dev/null; then
		sudo rpm --install "$PACKAGE_FILE"
	else
		 >2 echo "no package manager to install SSM Agent"
		exit 1
	fi
	# Remove the file again
	rm "$PACKAGE_FILE"
fi

# Enable system unit
if hash systemctl 2>/dev/null; then
	sudo systemctl enable amazon-ssm-agent
	sudo systemctl start amazon-ssm-agent
elif hash start 2>/dev/null; then
	# debian / ubutut
	sudo start amazon-ssm-agent
fi