When to Use
- •Database health checks
- •Connection verification
- •Performance monitoring
- •Backup status verification
Prerequisites
- •Azure CLI for Azure databases
- •psql for PostgreSQL operations
- •Appropriate database credentials
Commands
Azure PostgreSQL
bash
# List PostgreSQL servers az postgres flexible-server list -o table # Show server details az postgres flexible-server show --name <server> --resource-group <rg> # Check firewall rules az postgres flexible-server firewall-rule list --name <server> --resource-group <rg> # Check backup retention az postgres flexible-server show --name <server> --resource-group <rg> --query "backup"
Connection Testing
bash
# Test PostgreSQL connection psql "host=<host> dbname=<db> user=<user> sslmode=require" -c "SELECT version();" # Check active connections psql -c "SELECT count(*) FROM pg_stat_activity WHERE state = 'active';"
Health Monitoring
bash
# Check database size
psql -c "SELECT pg_size_pretty(pg_database_size(current_database()));"
# Check table sizes
psql -c "SELECT schemaname, tablename, pg_size_pretty(pg_total_relation_size(schemaname||'.'||tablename))
FROM pg_tables ORDER BY pg_total_relation_size(schemaname||'.'||tablename) DESC LIMIT 10;"
Best Practices
- •Use private endpoints for database connectivity
- •Enable SSL/TLS for all connections
- •Configure automated backups
- •Monitor connection pool usage
- •Set up alerts for high CPU/memory
Output Format
- •Command executed
- •Database status summary
- •Any issues detected
- •Recommendations
Integration with Agents
Used by: @database, @sre, @validation