AWS shortcuts

ec2

_Name_Tag_='Tags[?Key==`Name`].Value | [0]'
_Env_Tag_='Tags[?Key==`Environment`].Value | [0]'
_Project_Tag_='Tags[?Key==`Project`].Value | [0]'
_Owner_Tag_='Tags[?Key==`Owner`].Value | [0]'
_App_Tag_='Tags[?Key==`ApplicationGroup`].Value | [0]'

ami () {
  aws ec2 describe-images --image-id $1 --output json
}

amilist () {
  if [[ $1 =~ win ]]; then
    aws ec2 describe-images --filters "Name=platform,Values=windows" "Name=virtualization-type,Values=hvm" --owners self amazon --query "Images[].[ImageId, Name]" \
      --output text | sort -f -k 2
  else
    aws ec2 describe-images --filters "Name=virtualization-type,Values=hvm" --owners self amazon --query "Images[].[ImageId, Description]" \
      --output text | grep -v Windows | grep -v None | sort -f -k 2
  fi
}

ec2list () {
  aws ec2 describe-instances --query "Reservations[].Instances[].[$_Name_Tag_, InstanceId, PrivateIpAddress, ImageId, $_Env_Tag_, $_Owner_Tag_, $_Owner_Tag_, $_App_Tag_]" \
    --output text | sort -f
}

ec2din () {
  if [[ $1 =~ ^i- ]]; then
    aws ec2 describe-instances --instance-id "$@"
  else
    aws ec2 describe-instances --filter "Name=tag:Name,Values=$1" "${@:2}"
  fi
}

ec2find () {
  if [[ $1 =~ ^i- ]]; then
    aws ec2 describe-instances --instance-id "$1" \
      --query "Reservations[].Instances[].[InstanceId, $_Name_Tag_, PrivateIpAddress, ImageId, $_Env_Tag_, $_Owner_Tag_, $_Project_Tag_, $_App_Tag_]" \
      --output text | sort -f
  else
    aws ec2 describe-instances --filter "Name=tag:Name,Values=*$1*" \
      --query "Reservations[].Instances[].[$_Name_Tag_, InstanceId, PrivateIpAddress, ImageId, $_Env_Tag_, $_Owner_Tag_, $_Project_Tag_, $_App_Tag_]" \
      --output text | sort -f
  fi
}

ec2tags () {
  aws ec2 describe-instances --query 'Reservations[].Instances[].Tags[].[Key]' \
    --output text | sort | uniq -c
}

ec2tagvals () {
  aws ec2 describe-instances --filter "Name=tag-key,Values=$1" \
    --query "Reservations[].Instances[].[Tags[?Key==\`$1\`].Value]" \
    --output text | sort | uniq -c
}

ec2stopped () {
  aws ec2 describe-instances --filter 'Name=instance-state-name,Values=shutting-down,stopping,stopped' \
    --query "Reservations[].Instances[].[$_Name_Tag_, InstanceId, InstanceType, State.Name, StateReason.Message]" \
    --output text | sort -f
}

ec2running () {
  aws ec2 describe-instances --filter 'Name=instance-state-name,Values=running' \
    --query "Reservations[].Instances[].[$_Name_Tag_, InstanceId, InstanceType, LaunchTime, StateReason.Message" \
    --output text | sort -f
}

cwmetrics () {
  if [[ $1 =~ ^i- ]]; then
    aws cloudwatch list-metrics --dimensions Name=InstanceId,Value=$1 --output text --query "Metrics[].[MetricName]" | sort
  else
    echo Missing instance-id
  fi
}

cwcpu () {
  if [[ $1 =~ ^i- ]]; then
    hour=`date -u -v-1H +%FT%TZ`
    now=`date -u +%FT%TZ`
    min=`aws cloudwatch get-metric-statistics --namespace 'AWS/EC2' --metric-name CPUUtilization --dimensions Name=InstanceId,Value=$1 --start-time $hour --end-time $now --period 3600 --statistics Minimum --query 'Datapoints[].[Minimum]' --output text`
    avg=`aws cloudwatch get-metric-statistics --namespace 'AWS/EC2' --metric-name CPUUtilization --dimensions Name=InstanceId,Value=$1 --start-time $hour --end-time $now --period 3600 --statistics Average --query 'Datapoints[].[Average]' --output text`
    max=`aws cloudwatch get-metric-statistics --namespace 'AWS/EC2' --metric-name CPUUtilization --dimensions Name=InstanceId,Value=$1 --start-time $hour --end-time $now --period 3600 --statistics Maximum --query 'Datapoints[].[Maximum]' --output text`
    echo Last hour CPU usage min: $min% / avg: $avg% / max: $max%
  else
    echo Missing instance-id
  fi
}

cwnetwork () {
  if [[ $1 =~ ^i- ]]; then
    hour=`date -u -v-1H +%FT%TZ`
    now=`date -u +%FT%TZ`
    in=`aws cloudwatch get-metric-statistics --namespace AWS/EC2 --metric-name NetworkIn --dimensions Name=InstanceId,Value=$1 --start-time $hour --end-time $now --period 3600 --statistics Maximum --query 'Datapoints[].[Maximum]' --output text`
    out=`aws cloudwatch get-metric-statistics --namespace AWS/EC2 --metric-name NetworkOut --dimensions Name=InstanceId,Value=$1 --start-time $hour --end-time $now --period 3600 --statistics Maximum --query 'Datapoints[].[Maximum]' --output text`
    echo Last hour network traffic max In: $in bytes / Out: $out bytes
  else
    echo Missing instance-id
  fi
}

cwstatus () {
  if [[ $1 =~ ^i- ]]; then
    hour=`date -u -v-1H +%FT%TZ`
    now=`date -u +%FT%TZ`
    status=`aws cloudwatch get-metric-statistics --namespace AWS/EC2 --metric-name StatusCheckFailed --dimension Name=InstanceId,Value=$1 --start-time $hour --end-time $now --period 3600 --statistics Maximum --query 'Datapoints[].[Maximum]' --output text`
    if [[ $status = '0.0' ]]; then
      echo Last hour Status: green
    else
      echo Last hour Status Check Failures at:
      aws cloudwatch get-metric-statistics --namespace AWS/EC2 --metric-name StatusCheckFailed --dimension Name=InstanceId,Value=$1 --start-time $hour --end-time $now --period 60 --statistics Maximum --query 'Datapoints[].[Timestamp, Maximum]' --output text | egrep -v '\t0.0$' | awk '{print $1}' | sort
    fi
  else
    echo Missing instance-id
  fi
}