pull ec2 hosts to dnsmasq

chef-to-hosts.sh

#!/usr/bin/env bash

cd $CHEF_INFRA_HOME/infrastructure;knife search node -a ipaddress  "name:*p-* and chef_environment:production" | sed -e ':a' -e 'N' -e '$!ba' -e "s/:\n  ipaddress:/ /g" | sed -e '/^\s*$/d' | awk '{print $2"   "$1}'> /usr/local/etc/chef_hosts
cat /usr/local/etc/chef_hosts | awk '{print "host "$2"\n    hostname " $1 "\n    user ubuntu\n    port 22\n    IdentityFile ~/.ssh/id_rsa\n"}' > /usr/local/etc/ssh_config/chef

dev

#/etc/resolver/dev
nameserver 127.0.0.1

dnsmasq.conf

#/usr/local/etc/dnsmasq.conf
domain-needed
bogus-priv
no-resolv
no-poll
no-hosts

resolv-file=/usr/local/etc/resolv.dnsmasq

addn-hosts=/usr/local/etc/hosts
address=/.dev/127.0.0.1

server=84.200.69.80   # DNS.WATCH
server=8.8.8.8        # Google
server=8.26.56.26     # Comodo Secure DNS

ec2-refresh

#!/usr/bin/env bash
aws ec2 describe-instances --output text --query "Reservations[*].Instances[*].[PrivateIpAddress,Tags[0].[Value][0]][0]" | grep -v "None" > /usr/local/etc/hosts
cat /usr/local/etc/hosts | awk '{print "host "$2"\n    hostname " $1 "\n    user ubuntu\n    port 22\n    IdentityFile ~/.ssh/id_rsa\n"}' > /usr/local/etc/ssh_config⏎

ec2-to-hosts.sh

#!/bin/sh
aws ec2 describe-instances --output text --query "Reservations[*].Instances[*].[PrivateIpAddress,Tags[0].[Value][0]][0]" | grep -v "None" > /usr/local/etc/hosts

generate_ssh_config.sh

cat /usr/local/etc/hosts | awk '{print "host "$2"\n    hostname " $1 "\n    user ubuntu\n    port 22\n    IdentityFile ~/.ssh/id_rsa\n"}' > /usr/local/etc/ssh_config

Finally include via ~/ssh/config directive Include /usr/local/etc/ssh_config

Include /usr/local/etc/ssh_config/*