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Contents
#!/bin/bash -eux
function configure_aws_cli() {
local home_dir
home_dir=${1:-/root} # default to /root
# Configure aws cli in case it is not yet configured
mkdir -p "$home_dir/.aws"
if [ ! -f "$home_dir/.aws/config" ]; then
EC2_AVAIL_ZONE=$(curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone)
EC2_REGION=${EC2_AVAIL_ZONE::-1}
cat >"$home_dir/.aws/config" <<CONFIGURE_AWS_CLI
[default]
region = $EC2_REGION
output = json
CONFIGURE_AWS_CLI
fi
}
# Example OS values at this point:
# Ubuntu
# Amazon Linux AMI
function os_name() {
# https://askubuntu.com/questions/459402/how-to-know-if-the-running-platform-is-ubuntu-or-centos-with-help-of-a-bash-scri
# Method 1 works for amazonlinux2 and ubuntu
# Method 3 the complex script, did not work for amazonlinux2
local OS
OS=$(gawk -F= '/^NAME/{print $2}' /etc/os-release) # text surrounded by double quotes
# strip surrounding quotes: https://stackoverflow.com/questions/9733338/shell-script-remove-first-and-last-quote-from-a-variable
OS="${OS%\"}"
OS="${OS#\"}"
# Example OS values at this point:
# Ubuntu
# Amazon Linux AMI
# normalize values
case "$OS" in
Ubuntu)
echo "ubuntu"
;;
*)
echo "amazonlinux2" # default
;;
esac
}
Version data entries
7 entries across 7 versions & 1 rubygems