list-nodes.sh

#!/usr/bin/env bash

#Find the ip addresses of running instances

# set -f disables file globbing so wthat we can invoke ./list-nodes test1 '*'
# otherwise the star is expanded and messes with the command
set -f

network_name=$1
role=$2

if [[ -z "$network_name" ]]; then
  echo "Usage: list-nodes [network_name] [role]"
  echo "Possible roles: client, miner, relay, or '*' (in single quotes) for all"
  echo "Pass AWS_REGION=whatever to get specfic to a region: AWS_REGION=ap-southeast-1 ./list-nodes test1 '*'"
  exit 1
fi

PROFILEFLAG=""
if [[ ! -z "$AWS_PROFILE" ]]; then
  PROFILEFLAG="--profile=$AWS_PROFILE"
else
  unset AWS_PROFILE
fi

aws ec2 describe-instances \
  --query "Reservations[*].Instances[*].[Tags[?Key=='dns_name'].Value]" \
  --filters "Name=tag:network_name,Values=${network_name}" "Name=instance-state-name,Values=running" "Name=tag:Name,Values=${role}"  \
  --region ${AWS_REGION:-"us-east-1"} \
  --output=text $PROFILEFLAG

run-cmd.sh

#!/usr/bin/env bash
# Execute arbitrary command on instances

# set -f disables file globbing so wthat we can invoke ./run-cmd test1 '*' 'command' to hit all nodes
# otherwise the star is expanded and messes with the command
set -f 

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

network_name=$1
role=$2
command=$3

if [[ -z "$network_name" ]]; then
  echo "Usage: run-cmd [network_name] [role:miner/client/relay/'*'] [cmd]"
  echo "Example: run-cmd bx1 miner \"btcrpc getpeerinfo\""
  echo "Please put the command in quotes if it has spaces"
  exit 1
fi

# Finding us-east-1 nodes...  use1_nodes=$(AWS_REGION=us-east-1 $DIR/list-nodes $network_name $role) 
# Finding ap-southeast-1 nodes...
apse1_nodes=$(AWS_REGION=ap-southeast-1 $DIR/list-nodes $network_name $role)

if [[ ! -z "$use1_nodes" ]]; then
  pssh -H "$use1_nodes" -x "-o LogLevel=quiet -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i ~/.ssh/mykey" -l ec2-user -i $command
fi

if [[ ! -z "$apse1_nodes" ]]; then
  pssh -H "$apse1_nodes" -x "-o LogLevel=quiet -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -i ~/.ssh/mykey" -l ec2-user -i $command
fi