Merge pull request #865 from ahmed-lotfy-dev/feat/add-powersync-template

feat: add powersync blueprint template

blueprints/powersync/docker-compose.yml

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+services:
+  postgres:
+    image: postgres:17-alpine
+    restart: unless-stopped
+    command: ["postgres", "-c", "wal_level=logical"]
+    environment:
+      POSTGRES_USER: powersync
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_DB: powersync
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+      - ../files/init-powersync.sql:/docker-entrypoint-initdb.d/init-powersync.sql:ro
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U powersync -d powersync"]
+      interval: 5s
+      timeout: 5s
+      retries: 12
+
+  powersync:
+    image: journeyapps/powersync-service:1.21.0
+    restart: unless-stopped
+    depends_on:
+      postgres:
+        condition: service_healthy
+    environment:
+      POWERSYNC_CONFIG_PATH: /config/powersync.yaml
+      NODE_OPTIONS: --max-old-space-size=1000
+    volumes:
+      - ../files/powersync.yaml:/config/powersync.yaml:ro
+    command: ["start", "-r", "unified"]
+
+volumes:
+  postgres-data:

blueprints/powersync/meta.json

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+{
+  "id": "powersync",
+  "name": "PowerSync",
+  "version": "1.21.0",
+  "description": "PowerSync is a sync engine for local-first apps. Syncs PostgreSQL data to mobile devices and browsers with real-time replication.",
+  "logo": "powersync.png",
+  "links": {
+    "github": "https://github.com/powersync-ja/powersync-service",
+    "website": "https://www.powersync.com/",
+    "docs": "https://docs.powersync.com/"
+  },
+  "tags": [
+    "sync",
+    "database",
+    "local-first",
+    "postgresql",
+    "realtime"
+  ]
+}

blueprints/powersync/template.toml

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+[variables]
+main_domain = "${domain}"
+# Password for the bundled PostgreSQL (used as replication source and bucket storage).
+postgres_password = "${password:32}"
+# Auto-generated token for the PowerSync API (used in Authorization header).
+admin_token = "${password:32}"
+# HS256 secret used to sign development JWTs for clients (base64url encoded).
+jwks_key = "${password:48}"
+
+[config]
+[[config.domains]]
+serviceName = "powersync"
+port = 8080
+host = "${main_domain}"
+# PowerSync has no route on "/"; the liveness probe returns 200.
+path = "/probes/liveness"
+
+[config.env]
+POSTGRES_PASSWORD = "${postgres_password}"
+
+# PowerSync service configuration.
+# Docs: https://docs.powersync.com/self-hosting/installation/powersync-service-setup
+[[config.mounts]]
+filePath = "powersync.yaml"
+content = """
+telemetry:
+  disable_telemetry_sharing: true
+
+# Replication source: the bundled Postgres (wal_level=logical).
+# Point this at your own database to sync real data.
+replication:
+  connections:
+    - type: postgresql
+      uri: postgresql://powersync:${postgres_password}@postgres:5432/powersync
+      sslmode: disable
+
+# Bucket storage. Must be a different database than the replication source.
+storage:
+  type: postgresql
+  uri: postgresql://powersync:${postgres_password}@postgres:5432/powersync_storage
+  sslmode: disable
+
+port: 8080
+
+# Sync rules: syncs the demo "lists" table to all clients.
+# Edit these for your own schema: https://docs.powersync.com/usage/sync-rules
+sync_rules:
+  content: |
+    bucket_definitions:
+      global:
+        data:
+          - SELECT * FROM lists
+
+client_auth:
+  # HS256 key for signing development tokens.
+  # See https://docs.powersync.com/installation/authentication-setup/custom
+  jwks:
+    keys:
+      - kty: oct
+        alg: HS256
+        kid: powersync-dev
+        k: ${jwks_key}
+  audience: ["powersync"]
+
+api:
+  tokens:
+    - ${admin_token}
+"""
+
+# Runs once on the first Postgres startup (empty data volume).
+[[config.mounts]]
+filePath = "init-powersync.sql"
+content = """
+-- Separate database for PowerSync bucket storage.
+CREATE DATABASE powersync_storage OWNER powersync;
+
+-- Demo table synced by the default sync rules.
+CREATE TABLE lists (
+  id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
+  name text NOT NULL,
+  created_at timestamptz NOT NULL DEFAULT now()
+);
+
+INSERT INTO lists (name) VALUES ('Welcome to PowerSync');
+
+-- Publication used by PowerSync logical replication.
+CREATE PUBLICATION powersync FOR ALL TABLES;
+"""