Eb Infra

AWS Infrastructure for Elastic Beanstalk

Manage AWS services that support Elastic Beanstalk environments — SSL certificates, custom domains, secrets, databases, security, monitoring, and costs.

When to Use

• SSL/HTTPS certificate management
• Custom domain setup (Route 53)
• Secrets management (Secrets Manager, SSM Parameter Store)
• Database monitoring and snapshots (RDS)
• Security auditing (IAM, security groups)
• CloudWatch alarms and SNS notifications
• Cost analysis and optimization

When NOT to Use

• EB CLI operations (deploy, status, logs, config) → use the dedicated skills
• Creating/managing environments → use environment skill
• Troubleshooting application issues → use troubleshoot skill
• Platform updates → use maintenance skill

Prerequisites

AWS CLI must be installed and configured:

aws --version
aws configure

SSL / HTTPS (ACM)

List Certificates

aws acm list-certificates --output table

Request Certificate (DNS Validation)

aws acm request-certificate \
  --domain-name example.com \
  --validation-method DNS \
  --subject-alternative-names "*.example.com" \
  --output json

Check Certificate Status

aws acm describe-certificate --certificate-arn <arn> --output json

Get DNS Validation Records

aws acm describe-certificate \
  --certificate-arn <arn> \
  --query 'Certificate.DomainValidationOptions[*].ResourceRecord' \
  --output table

Add these CNAME records to DNS (see Domains section below).

Configure HTTPS on EB

After certificate is issued, edit via eb config (use eb skill):

aws:elbv2:listener:443:
  ListenerEnabled: 'true'
  Protocol: HTTPS
  SSLCertificateArns: <certificate-arn>

Delete Certificate

aws acm delete-certificate --certificate-arn <arn> --output json

Cannot delete if in use by a load balancer — remove from EB config first.

Custom Domains (Route 53)

List Hosted Zones

aws route53 list-hosted-zones --output table

List DNS Records

aws route53 list-resource-record-sets --hosted-zone-id <zone-id> --output table

Point Subdomain to EB (CNAME)

aws route53 change-resource-record-sets \
  --hosted-zone-id <zone-id> \
  --change-batch '{
    "Changes": [{
      "Action": "UPSERT",
      "ResourceRecordSet": {
        "Name": "app.example.com",
        "Type": "CNAME",
        "TTL": 300,
        "ResourceRecords": [{"Value": "<env-name>.us-east-1.elasticbeanstalk.com"}]
      }
    }]
  }'

Point Root Domain to EB (ALIAS)

aws route53 change-resource-record-sets \
  --hosted-zone-id <zone-id> \
  --change-batch '{
    "Changes": [{
      "Action": "UPSERT",
      "ResourceRecordSet": {
        "Name": "example.com",
        "Type": "A",
        "AliasTarget": {
          "HostedZoneId": "<eb-region-hosted-zone-id>",
          "DNSName": "<env-name>.us-east-1.elasticbeanstalk.com",
          "EvaluateTargetHealth": true
        }
      }
    }]
  }'

EB Hosted Zone IDs by region:

• us-east-1=Z117KPS5GTRQ2G, us-east-2=Z14LCN19Q5QHJI, us-west-1=Z1LQECGX5PH1X, us-west-2=Z38NKT9BP95V3O
• eu-west-1=Z2NYPWQ7DFZAZH, eu-west-2=Z1GKAAAUGATPF1, eu-west-3=Z5WN6GAABZTB7, eu-central-1=Z1FRNW7UH4DEZJ
• ap-southeast-1=Z16FZ9L249IFLT, ap-southeast-2=Z2PCDNR3VC2G1N, ap-northeast-1=Z1R25G3KIG2GBW, ap-northeast-2=Z3JE5OI70TWKCP
• ap-south-1=Z18NTBI3Y7N9TZ, ca-central-1=ZJFCZL7SSZB5I, sa-east-1=Z10X7K2B4QSOFV

For the full list, see AWS Elastic Beanstalk endpoints.

Check DNS Propagation

aws route53 get-change --id <change-id> --output json

Delete DNS Record

Use Action: "DELETE" with exact same record values.

Secrets (Secrets Manager & SSM)

Secrets Manager

Security: Avoid passing secret values directly on the command line — they are visible in shell history and process listings. Prefer --secret-string file://secret.txt where the file contains only the secret value.

# Create
aws secretsmanager create-secret \
  --name myapp/api-key \
  --secret-string file://secret.txt --output json

# Retrieve
aws secretsmanager get-secret-value --secret-id myapp/api-key --output json

# List
aws secretsmanager list-secrets --output table

# Update
aws secretsmanager update-secret \
  --secret-id myapp/api-key \
  --secret-string file://secret.txt --output json

# Rotate
aws secretsmanager rotate-secret --secret-id myapp/api-key --output json

# Delete (with 7-day recovery)
aws secretsmanager delete-secret \
  --secret-id myapp/api-key \
  --recovery-window-in-days 7 --output json

SSM Parameter Store

Security: Avoid passing secret values directly on the command line — they are visible in shell history and process listings. Prefer --value file://secret.txt where the file contains only the secret value.

# Create (encrypted)
aws ssm put-parameter \
  --name /myapp/prod/db-url \
  --value file://secret.txt \
  --type SecureString --output json

# Retrieve
aws ssm get-parameter --name /myapp/prod/db-url --with-decryption --output json

# List by path
aws ssm get-parameters-by-path --path /myapp/prod/ --with-decryption --output table

# Delete
aws ssm delete-parameter --name /myapp/prod/old-key --output json

Reference Secrets in EB Environment Variables

EB natively resolves secrets at deployment time:

# Secrets Manager
eb setenv DB_PASS='{{resolve:secretsmanager:myapp/db-pass}}'

# SSM Parameter Store
eb setenv API_KEY='{{resolve:ssm-secure:/myapp/prod/api-key}}'

Note: eb printenv shows the reference syntax, not the resolved value. The app receives the actual value at runtime.

Database (RDS)

This section focuses on monitoring and snapshots. Do NOT create/delete databases via CLI — use AWS Console.

List RDS Instances

aws rds describe-db-instances \
  --query 'DBInstances[*].[DBInstanceIdentifier,DBInstanceStatus,Engine,Endpoint.Address,Endpoint.Port]' \
  --output table

Get Connection Details

aws rds describe-db-instances \
  --db-instance-identifier <db-name> \
  --query 'DBInstances[0].Endpoint.[Address,Port]' \
  --output text

Compare with eb printenv to verify DATABASE_URL matches.

Create Pre-Deploy Snapshot

aws rds create-db-snapshot \
  --db-instance-identifier <db-name> \
  --db-snapshot-identifier pre-deploy-$(date +%Y%m%d-%H%M) --output json

List Snapshots

aws rds describe-db-snapshots \
  --db-instance-identifier <db-name> \
  --query 'DBSnapshots[*].[DBSnapshotIdentifier,Status,SnapshotCreateTime]' \
  --output table

Check Pending Maintenance

aws rds describe-pending-maintenance-actions --output table

View Database Logs

aws rds download-db-log-file-portion \
  --db-instance-identifier <db-name> \
  --log-file-name error/mysql-error-running.log --output text

Security Audit

Find EB Security Groups

aws ec2 describe-security-groups \
  --filters "Name=group-name,Values=*awseb*" \
  --query 'SecurityGroups[*].[GroupId,GroupName]' --output table

Audit Inbound Rules

aws ec2 describe-security-groups \
  --group-ids <sg-id> \
  --query 'SecurityGroups[0].IpPermissions' --output json

Flag Overly Permissive Rules (0.0.0.0/0)

aws ec2 describe-security-groups \
  --group-ids <sg-id> \
  --query 'SecurityGroups[0].IpPermissions[?IpRanges[?CidrIp==`0.0.0.0/0`]]' --output json

• Port 22 open to 0.0.0.0/0 → Restrict to your IP
• Port 80/443 open to 0.0.0.0/0 → OK for web-facing load balancers
• All ports open → High risk, restrict immediately

Check EB IAM Roles

# Service role
aws iam get-role --role-name aws-elasticbeanstalk-service-role --output json
aws iam list-attached-role-policies --role-name aws-elasticbeanstalk-service-role --output table

# Instance profile
aws iam list-attached-role-policies --role-name aws-elasticbeanstalk-ec2-role --output table

Find EB EC2 Instances

aws ec2 describe-instances \
  --filters "Name=tag:elasticbeanstalk:environment-name,Values=<env-name>" \
  --query 'Reservations[*].Instances[*].[InstanceId,State.Name,PublicIpAddress]' --output table

Monitoring (CloudWatch Alarms)

List EB Metrics

aws cloudwatch list-metrics \
  --namespace AWS/ElasticBeanstalk \
  --dimensions Name=EnvironmentName,Value=<env-name> --output table

Key metrics: EnvironmentHealth, ApplicationRequests5xx, ApplicationLatencyP99, CPUUtilization, InstancesOk

Query Metrics (Last Hour)

# macOS:
aws cloudwatch get-metric-statistics \
  --namespace AWS/ElasticBeanstalk \
  --metric-name CPUUtilization \
  --dimensions Name=EnvironmentName,Value=<env-name> \
  --start-time $(date -u -v-1H +%Y-%m-%dT%H:%M:%S) \
  --end-time $(date -u +%Y-%m-%dT%H:%M:%S) \
  --period 300 --statistics Average Maximum --output table

# Linux:
aws cloudwatch get-metric-statistics \
  --namespace AWS/ElasticBeanstalk \
  --metric-name CPUUtilization \
  --dimensions Name=EnvironmentName,Value=<env-name> \
  --start-time $(date -u -d '1 hour ago' +%Y-%m-%dT%H:%M:%S) \
  --end-time $(date -u +%Y-%m-%dT%H:%M:%S) \
  --period 300 --statistics Average Maximum --output table

Create SNS Topic + Subscribe

aws sns create-topic --name eb-alerts --output json
aws sns subscribe --topic-arn <arn> --protocol email --notification-endpoint your@email.com

Create Alarms

# High 5xx errors
aws cloudwatch put-metric-alarm \
  --alarm-name "<env>-high-5xx" \
  --namespace AWS/ElasticBeanstalk --metric-name ApplicationRequests5xx \
  --dimensions Name=EnvironmentName,Value=<env-name> \
  --statistic Sum --period 300 --evaluation-periods 2 --threshold 10 \
  --comparison-operator GreaterThanThreshold --alarm-actions <sns-arn>

# High CPU
aws cloudwatch put-metric-alarm \
  --alarm-name "<env>-high-cpu" \
  --namespace AWS/ElasticBeanstalk --metric-name CPUUtilization \
  --dimensions Name=EnvironmentName,Value=<env-name> \
  --statistic Average --period 300 --evaluation-periods 3 --threshold 80 \
  --comparison-operator GreaterThanThreshold --alarm-actions <sns-arn>

# Environment unhealthy
aws cloudwatch put-metric-alarm \
  --alarm-name "<env>-unhealthy" \
  --namespace AWS/ElasticBeanstalk --metric-name EnvironmentHealth \
  --dimensions Name=EnvironmentName,Value=<env-name> \
  --statistic Maximum --period 300 --evaluation-periods 1 --threshold 15 \
  --comparison-operator GreaterThanOrEqualToThreshold --alarm-actions <sns-arn>

Manage Alarms

aws cloudwatch describe-alarms --alarm-name-prefix "<env>" --output table
aws cloudwatch delete-alarms --alarm-names "<alarm-name>"

Cost Analysis

Monthly Costs by Service

# macOS:
aws ce get-cost-and-usage \
  --time-period Start=$(date -u -v-1m +%Y-%m-01),End=$(date -u +%Y-%m-01) \
  --granularity MONTHLY --metrics UnblendedCost \
  --group-by Type=DIMENSION,Key=SERVICE --output json

# Linux:
aws ce get-cost-and-usage \
  --time-period Start=$(date -u -d '1 month ago' +%Y-%m-01),End=$(date -u +%Y-%m-01) \
  --granularity MONTHLY --metrics UnblendedCost \
  --group-by Type=DIMENSION,Key=SERVICE --output json

Costs by EB Environment

# macOS:
aws ce get-cost-and-usage \
  --time-period Start=$(date -u -v-1m +%Y-%m-01),End=$(date -u +%Y-%m-01) \
  --granularity MONTHLY --metrics UnblendedCost \
  --filter '{"Tags":{"Key":"elasticbeanstalk:environment-name","Values":["<env-name>"]}}' \
  --group-by Type=DIMENSION,Key=SERVICE --output json

# Linux:
aws ce get-cost-and-usage \
  --time-period Start=$(date -u -d '1 month ago' +%Y-%m-01),End=$(date -u +%Y-%m-01) \
  --granularity MONTHLY --metrics UnblendedCost \
  --filter '{"Tags":{"Key":"elasticbeanstalk:environment-name","Values":["<env-name>"]}}' \
  --group-by Type=DIMENSION,Key=SERVICE --output json

Cost Forecast

# macOS:
aws ce get-cost-forecast \
  --time-period Start=$(date -u +%Y-%m-%d),End=$(date -u -v+1m +%Y-%m-01) \
  --metric UNBLENDED_COST --granularity MONTHLY --output json

# Linux:
aws ce get-cost-forecast \
  --time-period Start=$(date -u +%Y-%m-%d),End=$(date -u -d '1 month' +%Y-%m-01) \
  --metric UNBLENDED_COST --granularity MONTHLY --output json

Cost Optimization Tips

• CPU avg < 20% → downsize instance type
• Dev/test → use --single (no LB, saves ~$16/month)
• Enable Spot Instances for non-production
• Scale down during off-hours

Composability

• Deploy code: Use deploy skill
• Check status & health: Use status skill
• View logs: Use logs skill
• Change EB configuration: Use config skill
• Troubleshoot issues: Use troubleshoot skill
• Manage environments: Use environment skill
• Documentation & best practices: Use eb-docs skill

Additional Resources

• Cost Optimization
• Configuration Options

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