Resource-Counter - This Command Line Tool Counts The Number Of Resources In Different Categories Across Amazon Regions

This command line tool counts the number of resources in different categories across Amazon regions.

This is a simple Python app that will count resources across different regions and display them on the command line. It first shows the dictionary of the results for the monitored services on a per-region basis, then it shows totals across all regions in a friendlier format. It tries to use the most-efficient query mechanism for each resource in order to manage the impact of API activity. I wrote this to help me scope out assessments and know where resources are in a target account.

The development plan is to upgrade the output (probably to CSV file) and to continue to add services. If you have a specific service you want to see added just add a request in the comments.

The current list incluides:

Application and Network Load Balancers
Autoscale Groups
Classic Load Balancers
CloudTrail Trails
Cloudwatch Rules
Config Rules
Dynamo Tables
Elastic IP Addresses
Glacier Vaults
IAM Groups
Images
Instances
KMS Keys
Lambda Functions
Launch Configurations
NAT Gateways
Network ACLs
IAM Policies
RDS Instances
IAM Roles
S3 Buckets
SAML Providers
SNS Topics
Security Groups
Snapshots
Subnets
IAM Users
VPC Endpoints
VPC Peering Connection
VPCs
Volumes

Usage:
To install just copy it where you want it and instally the requirements:

pip install -r ./requirements.txt

This was written in Python 3.6.
To run:

python count_resources.py

By default, it will use whatever AWS credentials are alerady configued on the system. You can also specify an access key/secret at runtime and this is not stored. It only neeeds read permissions for the listed services- I use the ReadOnlyAccess managed policy, but you should also be able to use the SecurityAudit policy.

Usage: count_resources.py [OPTIONS]

Options:
  --access TEXT   AWS Access Key. Otherwise will use the standard credentials
              path for the AWS CLI.
  --secret TEXT   AWS Secret Key
  --profile TEXT  If you have multiple credential profiles, use this option to
              specify one.
  --help          Show this message and exit.

Sample Output:
Establishing AWS session using the profile- dev Current account ID: xxxxxxxxxx Counting resources across regions. This will take a few minutes...
Resources by region {'ap-northeast-1': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'ap-northeast-2': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 2, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'ap-south-1': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 2, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'ap-southeast-1': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'ap-southeast-2': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'ca-central-1': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 2, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'eu-central-1': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'eu-west-1': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'eu-west-2': {'instances': 3, 'volumes': 3, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'eu-west-3': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'sa-east-1': {'instances': 0, 'volumes': 0, 'security_groups': 1, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'us-east-1': {'instances': 2, 'volumes': 2, 'security_groups': 19, 'snapshots': 0, 'images': 0, 'vpcs': 2, 'subnets': 3, 'peering connections': 0, 'network ACLs': 2, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 1, 'cloudtrail trails': 2, 'sns topics': 3, 'kms keys': 5, 'dynamo tables': 0, 'rds instances': 0}, 'us-east-2': {'instances': 0, 'volumes': 0, 'security_groups': 2, 'snapshots': 0, 'images': 0, 'vpcs': 1, 'subnets': 3, 'peering connections': 0, 'network ACLs': 1, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 0, 'dynamo tables': 0, 'rds instances': 0}, 'us-west-1': {'instances': 1, 'volumes': 3, 'security_groups': 14, 'snapshots': 1, 'images': 0, 'vpcs': 0, 'subnets': 0, 'peering connections': 0, 'network ACLs': 0, 'elastic IPs': 0, 'NAT gateways': 0, 'VPC Endpoints': 0, 'autoscale groups': 0, 'launch configurations': 0, 'classic load balancers': 0, 'application and network load balancers': 0, 'lambdas': 0, 'glacier vaults': 0, 'cloudwatch rules': 0, 'config rules': 0, 'cloudtrail trails': 1, 'sns topics': 0, 'kms keys': 1, 'dynamo tables': 0, 'rds instances': 0}, 'us-west-2': {'instances': 9, 'volumes': 29, 'security_groups': 76, 'snapshots': 171, 'images': 104, 'vpcs': 7, 'subnets': 15, 'peering connections': 1, 'network ACLs': 8, 'elastic IPs': 7, 'NAT gateways': 1, 'VPC Endpoints': 0, 'autoscale groups': 1, 'launch configurations': 66, 'classic load balancers': 1, 'application and network load balancers': 2, 'lambdas': 10, 'glacier vaults': 1, 'cloudwatch rules': 8, 'config rules': 1, 'cloudtrail trails': 1, 'sns topics': 6, 'kms keys': 7, 'dynamo tables': 1, 'rds instances': 0}}
Resource totals across all regions Application and Network Load Balancers : 2 Autoscale Groups : 1 Classic Load Balancers : 1 CloudTrail Trails : 16 Cloudwatch Rules : 8 Config Rules : 2 Dynamo Tables : 1 Elastic IP Addresses : 7 Glacier Vaults : 1 Groups : 12 Images : 104 Instances : 15 KMS Keys : 13 Lambda Functions : 10 Launch Configurations : 66 NAT Gateways : 1 Network ACLs : 22 Policies : 15 RDS Instances : 0 Roles : 40 S3 Buckets : 31 SAML Providers : 1 SNS Topics : 9 Security Groups : 122 Snapshots : 172 Subnets : 51 Users : 14 VPC Endpoints : 0 VPC Peering Connections : 1 VPCs : 21 Volumes : 37
Total resources: 796

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