Initial commit: Cloud Instances API
Multi-cloud VM instance database with Cloudflare Workers - Linode, Vultr, AWS connector integration - D1 database with regions, instances, pricing - Query API with filtering, caching, pagination - Cron-based auto-sync (daily + 6-hourly) - Health monitoring endpoint Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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kappa
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schema.sql
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177
schema.sql
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-- Cloud Server Pricing Database Schema
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-- SQLite/Cloudflare D1 Compatible
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-- ISO 8601 datetime format: YYYY-MM-DD HH:MM:SS
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-- ============================================================
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-- Table: providers
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-- Description: Cloud provider information
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-- ============================================================
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CREATE TABLE IF NOT EXISTS providers (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL UNIQUE, -- linode, vultr, aws, etc.
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display_name TEXT NOT NULL,
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api_base_url TEXT,
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last_sync_at TEXT, -- ISO 8601: YYYY-MM-DD HH:MM:SS
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sync_status TEXT NOT NULL DEFAULT 'pending' CHECK (sync_status IN ('pending', 'syncing', 'success', 'error')),
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sync_error TEXT,
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created_at TEXT NOT NULL DEFAULT (datetime('now')),
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updated_at TEXT NOT NULL DEFAULT (datetime('now'))
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);
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-- Index for status queries
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CREATE INDEX IF NOT EXISTS idx_providers_sync_status ON providers(sync_status);
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CREATE INDEX IF NOT EXISTS idx_providers_name ON providers(name);
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-- ============================================================
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-- Table: regions
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-- Description: Provider regions and availability zones
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-- ============================================================
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CREATE TABLE IF NOT EXISTS regions (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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provider_id INTEGER NOT NULL,
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region_code TEXT NOT NULL, -- e.g., us-east, ap-south
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region_name TEXT NOT NULL, -- e.g., "US East (Newark)"
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country_code TEXT, -- ISO 3166-1 alpha-2
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latitude REAL,
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longitude REAL,
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available INTEGER NOT NULL DEFAULT 1, -- boolean: 1=true, 0=false
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created_at TEXT NOT NULL DEFAULT (datetime('now')),
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updated_at TEXT NOT NULL DEFAULT (datetime('now')),
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FOREIGN KEY (provider_id) REFERENCES providers(id) ON DELETE CASCADE,
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UNIQUE(provider_id, region_code)
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);
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-- Indexes for foreign key and queries
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CREATE INDEX IF NOT EXISTS idx_regions_provider_id ON regions(provider_id);
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CREATE INDEX IF NOT EXISTS idx_regions_available ON regions(available);
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CREATE INDEX IF NOT EXISTS idx_regions_country_code ON regions(country_code);
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-- ============================================================
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-- Table: instance_types
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-- Description: VM instance specifications across providers
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-- ============================================================
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CREATE TABLE IF NOT EXISTS instance_types (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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provider_id INTEGER NOT NULL,
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instance_id TEXT NOT NULL, -- provider's instance identifier
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instance_name TEXT NOT NULL, -- display name
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vcpu INTEGER NOT NULL,
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memory_mb INTEGER NOT NULL,
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storage_gb INTEGER NOT NULL,
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transfer_tb REAL, -- data transfer limit
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network_speed_gbps REAL,
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gpu_count INTEGER DEFAULT 0,
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gpu_type TEXT, -- e.g., "NVIDIA A100"
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instance_family TEXT CHECK (instance_family IN ('general', 'compute', 'memory', 'storage', 'gpu')),
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metadata TEXT, -- JSON for additional provider-specific data
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created_at TEXT NOT NULL DEFAULT (datetime('now')),
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updated_at TEXT NOT NULL DEFAULT (datetime('now')),
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FOREIGN KEY (provider_id) REFERENCES providers(id) ON DELETE CASCADE,
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UNIQUE(provider_id, instance_id)
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);
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-- Indexes for filtering and sorting
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CREATE INDEX IF NOT EXISTS idx_instance_types_provider_id ON instance_types(provider_id);
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CREATE INDEX IF NOT EXISTS idx_instance_types_vcpu ON instance_types(vcpu);
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CREATE INDEX IF NOT EXISTS idx_instance_types_memory_mb ON instance_types(memory_mb);
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CREATE INDEX IF NOT EXISTS idx_instance_types_instance_family ON instance_types(instance_family);
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CREATE INDEX IF NOT EXISTS idx_instance_types_gpu_count ON instance_types(gpu_count);
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-- ============================================================
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-- Table: pricing
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-- Description: Region-specific pricing for instance types
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-- ============================================================
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CREATE TABLE IF NOT EXISTS pricing (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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instance_type_id INTEGER NOT NULL,
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region_id INTEGER NOT NULL,
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hourly_price REAL NOT NULL,
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monthly_price REAL NOT NULL,
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currency TEXT NOT NULL DEFAULT 'USD',
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available INTEGER NOT NULL DEFAULT 1, -- boolean: 1=true, 0=false
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created_at TEXT NOT NULL DEFAULT (datetime('now')),
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updated_at TEXT NOT NULL DEFAULT (datetime('now')),
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FOREIGN KEY (instance_type_id) REFERENCES instance_types(id) ON DELETE CASCADE,
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FOREIGN KEY (region_id) REFERENCES regions(id) ON DELETE CASCADE,
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UNIQUE(instance_type_id, region_id)
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);
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-- Indexes for price queries and filtering
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CREATE INDEX IF NOT EXISTS idx_pricing_instance_type_id ON pricing(instance_type_id);
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CREATE INDEX IF NOT EXISTS idx_pricing_region_id ON pricing(region_id);
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CREATE INDEX IF NOT EXISTS idx_pricing_hourly_price ON pricing(hourly_price);
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CREATE INDEX IF NOT EXISTS idx_pricing_monthly_price ON pricing(monthly_price);
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CREATE INDEX IF NOT EXISTS idx_pricing_available ON pricing(available);
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-- ============================================================
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-- Table: price_history
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-- Description: Historical price tracking for trend analysis
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-- ============================================================
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CREATE TABLE IF NOT EXISTS price_history (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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pricing_id INTEGER NOT NULL,
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hourly_price REAL NOT NULL,
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monthly_price REAL NOT NULL,
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recorded_at TEXT NOT NULL DEFAULT (datetime('now')),
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FOREIGN KEY (pricing_id) REFERENCES pricing(id) ON DELETE CASCADE
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);
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-- Indexes for time-series queries
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CREATE INDEX IF NOT EXISTS idx_price_history_pricing_id ON price_history(pricing_id);
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CREATE INDEX IF NOT EXISTS idx_price_history_recorded_at ON price_history(recorded_at);
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CREATE INDEX IF NOT EXISTS idx_price_history_pricing_recorded ON price_history(pricing_id, recorded_at DESC);
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-- ============================================================
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-- Triggers: Auto-update updated_at timestamp
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-- ============================================================
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CREATE TRIGGER IF NOT EXISTS update_providers_updated_at
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AFTER UPDATE ON providers
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FOR EACH ROW
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BEGIN
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UPDATE providers SET updated_at = datetime('now') WHERE id = NEW.id;
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END;
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CREATE TRIGGER IF NOT EXISTS update_regions_updated_at
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AFTER UPDATE ON regions
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FOR EACH ROW
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BEGIN
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UPDATE regions SET updated_at = datetime('now') WHERE id = NEW.id;
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END;
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CREATE TRIGGER IF NOT EXISTS update_instance_types_updated_at
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AFTER UPDATE ON instance_types
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FOR EACH ROW
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BEGIN
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UPDATE instance_types SET updated_at = datetime('now') WHERE id = NEW.id;
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END;
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CREATE TRIGGER IF NOT EXISTS update_pricing_updated_at
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AFTER UPDATE ON pricing
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FOR EACH ROW
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BEGIN
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UPDATE pricing SET updated_at = datetime('now') WHERE id = NEW.id;
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END;
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-- ============================================================
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-- Triggers: Price history tracking
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-- ============================================================
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-- Record price changes automatically
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CREATE TRIGGER IF NOT EXISTS track_price_changes
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AFTER UPDATE OF hourly_price, monthly_price ON pricing
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FOR EACH ROW
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WHEN OLD.hourly_price != NEW.hourly_price OR OLD.monthly_price != NEW.monthly_price
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BEGIN
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INSERT INTO price_history (pricing_id, hourly_price, monthly_price, recorded_at)
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VALUES (NEW.id, NEW.hourly_price, NEW.monthly_price, datetime('now'));
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END;
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-- Record initial price on creation
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CREATE TRIGGER IF NOT EXISTS track_initial_price
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AFTER INSERT ON pricing
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FOR EACH ROW
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BEGIN
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INSERT INTO price_history (pricing_id, hourly_price, monthly_price, recorded_at)
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VALUES (NEW.id, NEW.hourly_price, NEW.monthly_price, datetime('now'));
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END;
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