feat: migrate to docker-compose with selfhosted-supabase-mcp

- Replace legacy directory structure (api/, db/, functions/, logs/, pooler/) with single docker-compose.yml based self-hosted setup - Add selfhosted-supabase-mcp TypeScript MCP server for database management - Add .dockerignore for Docker build context - Update .gitignore to exclude .env files, volumes/, backups, logs
2026-02-21 19:32:57 +00:00
parent a7cca50f17
commit 95af17c02d
107 changed files with 12575 additions and 3295 deletions
@@ -0,0 +1,65 @@
+import { z } from 'zod';
+import type { SelfhostedSupabaseClient } from '../client/index.js';
+import { handleSqlResponse, executeSqlWithFallback } from './utils.js';
+import type { ToolContext } from './types.js';
+
+// Schema for the output: array of connection details
+const GetDbConnectionsOutputSchema = z.array(z.object({
+    datname: z.string().nullable().describe('Database name'),
+    usename: z.string().nullable().describe('User name'),
+    application_name: z.string().nullable().describe('Application name (e.g., PostgREST, psql)'),
+    client_addr: z.string().nullable().describe('Client IP address'),
+    backend_start: z.string().nullable().describe('Time when the backend process started'),
+    state: z.string().nullable().describe('Current connection state (e.g., active, idle)'),
+    query: z.string().nullable().describe('Last or current query being executed'),
+    pid: z.number().describe('Process ID of the backend'),
+}));
+
+// Input schema (allow filtering by user or database later if needed)
+const GetDbConnectionsInputSchema = z.object({});
+type GetDbConnectionsInput = z.infer<typeof GetDbConnectionsInputSchema>;
+
+// Static JSON Schema for MCP capabilities
+const mcpInputSchema = {
+    type: 'object',
+    properties: {},
+    required: [],
+};
+
+// The tool definition
+export const getDatabaseConnectionsTool = {
+    name: 'get_database_connections',
+    description: 'Retrieves information about active database connections from pg_stat_activity.',
+    inputSchema: GetDbConnectionsInputSchema,
+    mcpInputSchema: mcpInputSchema,
+    outputSchema: GetDbConnectionsOutputSchema,
+    execute: async (input: GetDbConnectionsInput, context: ToolContext) => {
+        const client = context.selfhostedClient;
+
+        // Query pg_stat_activity
+        // Note: Access to pg_stat_activity might require superuser or specific grants.
+        const getConnectionsSql = `
+            SELECT
+                pid,
+                datname,
+                usename,
+                application_name,
+                client_addr::text, -- Cast inet to text
+                backend_start::text, -- Cast timestamp to text
+                state,
+                query
+            FROM
+                pg_stat_activity
+            WHERE
+                backend_type = 'client backend' -- Exclude background workers, etc.
+                -- Optionally filter out self?
+                -- AND pid != pg_backend_pid()
+            ORDER BY
+                backend_start
+        `;
+
+        const result = await executeSqlWithFallback(client, getConnectionsSql, true);
+
+        return handleSqlResponse(result, GetDbConnectionsOutputSchema);
+    },
+};