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AWS Inventory: Show windows / linux instance counts #60

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AWS Inventory: Show windows / linux instance counts #60

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38 changes: 27 additions & 11 deletions bash/lw_aws_inventory.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,9 @@ shift $((OPTIND -1))

# Set the initial counts to zero.
ACCOUNTS=0
EC2_INSTANCES=0
EC2_INSTANCES_WINDOWS=0
EC2_INSTANCES_LINUX=0
EC2_INSTANCES_TOTAL=0
RDS_INSTANCES=0
REDSHIFT_CLUSTERS=0
ELB_V1=0
Expand All @@ -51,10 +53,14 @@ function getRegions {
aws --profile $profile ec2 describe-regions --output json | jq -r '.[] | .[] | .RegionName'
}

function getInstances {
function getInstancesTotal {
aws --profile $profile ec2 describe-instances --query 'Reservations[*].Instances[*].[InstanceId]' --filters Name=instance-state-name,Values=running,stopped --region $r --output json --no-paginate | jq 'flatten | length'
}

function getInstancesWindows {
aws --profile $profile ec2 describe-instances --query 'Reservations[*].Instances[*].[InstanceId]' --filters "Name=instance-state-name,Values=running,stopped" "Name=platform,Values=windows" --region $r --output json --no-paginate | jq 'flatten | length'
}

function getRDSInstances {
aws --profile $profile rds describe-db-instances --region $r --output json --no-paginate | jq '.DBInstances | length'
}
Expand Down Expand Up @@ -101,7 +107,9 @@ function calculateInventory {
profile=$1
accountid=$(getAccountId $profile)

accountEC2Instances=0
accountEC2InstancesTotal=0
accountEC2InstancesLinux=0
accountEC2InstancesWindows=0
accountRDSInstances=0
accountRedshiftClusters=0
accountELBV1=0
Expand All @@ -115,9 +123,17 @@ function calculateInventory {
for r in $(getRegions); do
printf "$r "

instances=$(getInstances $r $profile)
EC2_INSTANCES=$(($EC2_INSTANCES + $instances))
accountEC2Instances=$(($accountEC2Instances + $instances))
instancesTotal=$(getInstancesTotal $r $profile)
EC2_INSTANCES_TOTAL=$(($EC2_INSTANCES_TOTAL + $instancesTotal))
accountEC2InstancesTotal=$(($accountEC2InstancesTotal + $instancesTotal))

instancesWindows=$(getInstancesWindows $r $profile)
EC2_INSTANCES_WINDOWS=$(($EC2_INSTANCES_WINDOWS + $instancesWindows))
accountEC2InstancesWindows=$(($accountEC2InstancesWindows + $instancesWindows))

instancesLinux=$(($instancesTotal-$instancesWindows))
EC2_INSTANCES_LINUX=$(($EC2_INSTANCES_LINUX + $instancesLinux))
accountEC2InstancesLinux=$(($accountEC2InstancesLinux + $instancesLinux))

rds=$(getRDSInstances $r $profile)
RDS_INSTANCES=$(($RDS_INSTANCES + $rds))
Expand Down Expand Up @@ -153,14 +169,14 @@ function calculateInventory {
accountLambdaFunctions=$(($LAMBDA_FNS + $lambdafns))
if [ $LAMBDA_FNS -gt 0 ]; then LAMBDA_FNS_EXIST="Yes"; fi

regiontotal=$(($instances + $rds + $redshift + $elbv1 + $elbv2 + $natgw))
regiontotal=$(($instancesTotal + $rds + $redshift + $elbv1 + $elbv2 + $natgw))

done
accountTotal=$(($accountEC2Instances + $accountRDSInstances + $accountRedshiftClusters + $accountELBV1 + $accountELBV2 + $accountNATGateways))
accountTotal=$(($accountEC2InstancesTotal + $accountRDSInstances + $accountRedshiftClusters + $accountELBV1 + $accountELBV2 + $accountNATGateways))

echo , "$accountEC2Instances", "$accountRDSInstances", "$accountRedshiftClusters", "$accountELBV1", "$accountELBV2", "$accountNATGateways", "$accountTotal", "$accountECSFargateClusters", "$accountECSFargateRunningTasks", "$accountLambdaFunctions"
echo , "$accountEC2InstancesTotal", "$accountRDSInstances", "$accountRedshiftClusters", "$accountELBV1", "$accountELBV2", "$accountNATGateways", "$accountTotal", "$accountECSFargateClusters", "$accountECSFargateRunningTasks", "$accountLambdaFunctions"

TOTAL=$(($EC2_INSTANCES + $RDS_INSTANCES + $REDSHIFT_CLUSTERS + $ELB_V1 + $ELB_V2 + $NAT_GATEWAYS))
TOTAL=$(($EC2_INSTANCES_TOTAL + $RDS_INSTANCES + $REDSHIFT_CLUSTERS + $ELB_V1 + $ELB_V2 + $NAT_GATEWAYS))
}

function textoutput {
Expand All @@ -169,7 +185,7 @@ function textoutput {
echo ""
echo "Accounts Analyzed: $ACCOUNTS"
echo ""
echo "EC2 Instances: $EC2_INSTANCES"
echo "EC2 Instances: $EC2_INSTANCES_TOTAL (Linux: ${EC2_INSTANCES_LINUX}, Windows: ${EC2_INSTANCES_WINDOWS})"
echo "RDS Instances: $RDS_INSTANCES"
echo "Redshift Clusters: $REDSHIFT_CLUSTERS"
echo "v1 Load Balancers: $ELB_V1"
Expand Down