AWS Quotas Check Skill

Check AWS service quotas and current usage to plan HyperShift cluster capacity.

When to Use

• Before creating new HyperShift clusters
• Capacity planning for parallel CI runs
• Debugging "quota exceeded" errors
• User asks "check quotas" or "can I create more clusters"

Quick Check

# Check all quotas and usage
./.github/scripts/hypershift/check-quotas.sh

Output shows:

• VPC Resources (VPCs, Internet Gateways, NAT Gateways, Elastic IPs)
• EC2 Resources (Running instances, Security Groups, Launch Templates)
• Load Balancer Resources (NLBs, Target Groups)
• S3 Resources (Buckets)
• IAM Resources (Roles, Instance Profiles)
• Route53 Resources (Hosted Zones)

Request Quota Increases

# Request increases for quotas below recommended levels
./.github/scripts/hypershift/check-quotas.sh --request-increases

Key Quotas for HyperShift

Each HyperShift cluster typically requires:

Resource	Per Cluster	Default Quota	Recommended
VPCs	1	5	5+
NAT Gateways	3 (per AZ)	5	15+
Elastic IPs	3 (for NATs)	5	15+
Security Groups	~10	500	50+
NLBs	1-2	50	10+
IAM Roles	~5	300	50+
Route53 Zones	1-2	500	10+

Quota Status Interpretation

Output colors:

• Green: <60% used (healthy)
• Yellow: 60-80% used (monitor)
• Red: >80% used (action needed)

Recommended warnings show when quota is below suggested minimum.

Manual Quota Check

# VPCs
aws ec2 describe-vpcs --query 'Vpcs | length(@)'

# NAT Gateways (active only)
aws ec2 describe-nat-gateways \
    --filter "Name=state,Values=available,pending" \
    --query 'NatGateways | length(@)'

# Elastic IPs
aws ec2 describe-addresses --query 'Addresses | length(@)'

# Security Groups
aws ec2 describe-security-groups --query 'SecurityGroups | length(@)'

# Running Instances
aws ec2 describe-instances \
    --filters "Name=instance-state-name,Values=running,pending" \
    --query 'Reservations[*].Instances | length(@)'

Service Quota API

# Get specific quota
aws service-quotas get-service-quota \
    --service-code vpc \
    --quota-code L-F678F1CE \
    --query 'Quota.Value'

# Common quota codes:
# VPCs:              vpc / L-F678F1CE
# NAT Gateways:      vpc / L-FE5A380F
# Elastic IPs:       ec2 / L-0263D0A3
# Security Groups:   ec2 / L-0EA8095F
# NLBs:              elasticloadbalancing / L-69A177A2

Request Quota Increase Manually

# Request quota increase
aws service-quotas request-service-quota-increase \
    --service-code vpc \
    --quota-code L-FE5A380F \
    --desired-value 20 \
    --region us-east-1

Troubleshooting Quota Issues

"VpcLimitExceeded"

# Check VPC count and limit
aws ec2 describe-vpcs --query 'Vpcs | length(@)'
./.github/scripts/hypershift/check-quotas.sh | grep -A2 "VPC Resources"

# Delete unused VPCs (carefully!)
aws ec2 describe-vpcs --query 'Vpcs[*].[VpcId,Tags[?Key==`Name`].Value|[0]]' --output table

"AddressLimitExceeded"

# Find unused Elastic IPs
aws ec2 describe-addresses \
    --query 'Addresses[?AssociationId==`null`].[AllocationId,PublicIp]' \
    --output table

# Release unused EIPs
aws ec2 release-address --allocation-id <allocation-id>

"NatGatewayLimitExceeded"

# Find orphaned NAT Gateways
aws ec2 describe-nat-gateways \
    --filter "Name=state,Values=available" \
    --query 'NatGateways[*].[NatGatewayId,State,VpcId]' \
    --output table

CI Parallel Run Capacity

For CI with parallel HyperShift runs, plan quotas:

Parallel Runs	NAT Gateways	Elastic IPs	VPCs
1	5	5	2
2	8	8	3
3	12	12	4
4	15	15	5

Add buffer for failed cleanups that may leave orphaned resources.

Related Skills

• hypershift:cluster: Create and destroy clusters
• hypershift:debug: Debug stuck resources
• hypershift:preflight: Full pre-flight check

Related Documentation

• .github/scripts/local-setup/README.md - Local setup documentation