SSH into all servers from an auto-scaling group via iTerm on Mac

asg-ssh

#!/usr/bin/php
<?php


$sshKey = "~/.ssh/id_rsa";
$sshUser = getenv('USER');    // Get the user from your environment variables
$autoScalingGroups =  $argv[1]; // A blob pattern of the auto scalling group name to match
$userPrivateIp = true;                  // Use the VPC private IP to connect?
$profile = getenv('WORKENV');


$cmd = "aws --profile $profile ec2 describe-instances --filter \"Name=instance-state-name,Values=running\" \"Name=tag-key,Values=aws:autoscaling:groupName\" \"Name=tag-value,Values=$autoScalingGroups\"";
echo "Running: $cmd\n";
$instances = json_decode(`$cmd`, true);

$count = 0;
$ascript_body = "";
$name = "";

foreach($instances['Reservations'] as $instance) {

    foreach($instance['Instances'] as $inst) {

        $ip = $userPrivateIp ? $inst['PrivateIpAddress'] : $inst['PublicIpAddress'];

        foreach($inst['Tags'] as $tag) {
            if ($tag['Key'] == "Name") {
                $name = $tag['Value'];
                break 1;
            }
        }

        echo "Openning ssh to $ip (Name: $name)\n";

        $ascript_body = $ascript_body."
        launch session \"Default Session\"
        tell the last session
            set name to \"$name\"
            do shell script \"workenv $profile\"
            write text \"ssh $sshUser@$ip -i $sshKey\"
            write text \"sudo su -\"
            do shell script \"/bin/sleep 0.01\"
        end tell\n
        ";

        $count++;

    }

}


passthru(
    "/usr/bin/osascript <<-EOF
        set curr_tab to 1
        tell application \"iTerm\"
            set myterm to (make new terminal)
            tell myterm
                $ascript_body
            end tell
        end tell
    EOF
    "
);


echo "---------------------------------------\n";
echo "Connected to $count instances\n";
echo "---------------------------------------\n\n";