defang playground

Author: KevyVo

samples/mastra/.dockerignore

@@ -0,0 +1,27 @@
+# Default .dockerignore file for Defang
+**/__pycache__
+**/.direnv
+**/.DS_Store
+**/.envrc
+**/.git
+**/.github
+**/.idea
+**/.next
+**/.vscode
+**/compose.*.yaml
+**/compose.*.yml
+**/compose.yaml
+**/compose.yml
+**/docker-compose.*.yaml
+**/docker-compose.*.yml
+**/docker-compose.yaml
+**/docker-compose.yml
+**/node_modules
+**/Thumbs.db
+Dockerfile
+*.Dockerfile
+# Ignore our own binary, but only in the root to avoid ignoring subfolders
+defang
+defang.exe
+# Ignore our project-level state
+.defang*

samples/mastra/Dockerfile

@@ -0,0 +1,22 @@
+FROM node:22-alpine
+
+WORKDIR /app
+COPY package*.json ./
+RUN npm ci
+COPY src ./src
+RUN npx mastra build
+RUN apk add --no-cache gcompat
+
+RUN addgroup -g 1001 -S nodejs && \
+  adduser -S mastra -u 1001 && \
+  chown -R mastra:nodejs /app
+
+USER mastra
+
+ENV PORT=8080
+ENV NODE_ENV=production
+ENV READINESS_CHECK_PATH="/api"
+
+EXPOSE 8080
+
+CMD ["node", "--import=./.mastra/output/instrumentation.mjs", ".mastra/output/index.mjs"]

samples/mastra/Dockerfile.local

@@ -0,0 +1,23 @@
+FROM node:22
+
+WORKDIR /app
+COPY package*.json ./
+# Use npm install instead of npm ci for better optional dependency handling
+RUN npm install
+COPY src ./src
+
+RUN groupadd -g 1001 nodejs && \
+    useradd -r -u 1001 -g nodejs mastra -m && \
+    chown -R mastra:nodejs /app && \
+    mkdir -p /home/mastra/.config && \
+    chown -R mastra:nodejs /home/mastra
+
+USER mastra
+
+ENV PORT=8080
+# ENV NODE_ENV=development
+# ENV READINESS_CHECK_PATH="/api"
+
+EXPOSE 8080
+
+CMD ["npm", "run", "dev"]

samples/mastra/compose.yaml

@@ -0,0 +1,30 @@
+services:
+  db:
+    image: postgres:15
+    restart: unless-stopped
+    environment:
+      - POSTGRES_USER=postgres
+      - POSTGRES_PASSWORD
+      - POSTGRES_DB=postgres
+    ports:
+      - mode: host
+        target: 5432
+
+  mastra:
+    # uncomment to add your own domain
+    # domainname: example.com
+    restart: unless-stopped
+    build:
+      context: .
+      dockerfile: Dockerfile
+    ports:
+      - mode: ingress
+        target: 8080
+        published: 8080
+    environment:
+      - GOOGLE_GENERATIVE_AI_API_KEY
+      - DATABASE_URL=postgres://postgres:${POSTGRES_PASSWORD}@db:5432/postgres
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:8080"]
+    depends_on:
+      - db

samples/mastra/package-lock.json

@@ -22,6 +22,7 @@
     "@mastra/libsql": "^0.16.1",
     "@mastra/loggers": "^0.10.18",
     "@mastra/memory": "^0.15.10",
+    "@mastra/pg": "^0.17.7",
     "zod": "^4.1.12"
   },
   "devDependencies": {

samples/mastra/package.json

@@ -1,11 +1,11 @@
-import { Agent } from '@mastra/core/agent';
-import { Memory } from '@mastra/memory';
-import { LibSQLStore } from '@mastra/libsql';
-import { weatherTool } from '../tools/weather-tool';
-import { scorers } from '../scorers/weather-scorer';
+import { Agent } from "@mastra/core/agent";
+import { Memory } from "@mastra/memory";
+import { PostgresStore } from "@mastra/pg";
+import { weatherTool } from "../tools/weather-tool";
+import { scorers } from "../scorers/weather-scorer";
 
 export const weatherAgent = new Agent({
-  name: 'Weather Agent',
+  name: "Weather Agent",
   instructions: `
       You are a helpful weather assistant that provides accurate weather information and can help planning activities based on the weather.
 
@@ -20,34 +20,34 @@ export const weatherAgent = new Agent({
 
       Use the weatherTool to fetch current weather data.
 `,
-  model: 'google/gemini-2.5-pro',
+  model: "google/gemini-2.5-pro",
   tools: { weatherTool },
   scorers: {
     toolCallAppropriateness: {
       scorer: scorers.toolCallAppropriatenessScorer,
       sampling: {
-        type: 'ratio',
+        type: "ratio",
         rate: 1,
       },
     },
     completeness: {
       scorer: scorers.completenessScorer,
       sampling: {
-        type: 'ratio',
+        type: "ratio",
         rate: 1,
       },
     },
     translation: {
       scorer: scorers.translationScorer,
       sampling: {
-        type: 'ratio',
+        type: "ratio",
         rate: 1,
       },
     },
   },
   memory: new Memory({
-    storage: new LibSQLStore({
-      url: 'file:../mastra.db', // path is relative to the .mastra/output directory
+    storage: new PostgresStore({
+      connectionString: process.env.DATABASE_URL!,
     }),
   }),
 });

samples/mastra/src/mastra/agents/weather-agent.ts

@@ -1,29 +1,36 @@
-
-import { Mastra } from '@mastra/core/mastra';
-import { PinoLogger } from '@mastra/loggers';
-import { LibSQLStore } from '@mastra/libsql';
-import { weatherWorkflow } from './workflows/weather-workflow';
-import { weatherAgent } from './agents/weather-agent';
-import { toolCallAppropriatenessScorer, completenessScorer, translationScorer } from './scorers/weather-scorer';
+import { Mastra } from "@mastra/core/mastra";
+import { PinoLogger } from "@mastra/loggers";
+import { PostgresStore } from "@mastra/pg";
+import { weatherWorkflow } from "./workflows/weather-workflow";
+import { weatherAgent } from "./agents/weather-agent";
+import {
+  toolCallAppropriatenessScorer,
+  completenessScorer,
+  translationScorer,
+} from "./scorers/weather-scorer";
 
 export const mastra = new Mastra({
   workflows: { weatherWorkflow },
   agents: { weatherAgent },
-  scorers: { toolCallAppropriatenessScorer, completenessScorer, translationScorer },
-  storage: new LibSQLStore({
+  scorers: {
+    toolCallAppropriatenessScorer,
+    completenessScorer,
+    translationScorer,
+  },
+  storage: new PostgresStore({
     // stores observability, scores, ... into memory storage, if it needs to persist, change to file:../mastra.db
-    url: ":memory:",
+    connectionString: process.env.DATABASE_URL!,
   }),
   logger: new PinoLogger({
-    name: 'Mastra',
-    level: 'info',
+    name: "Mastra",
+    level: "info",
   }),
   telemetry: {
     // Telemetry is deprecated and will be removed in the Nov 4th release
-    enabled: false, 
+    enabled: false,
   },
   observability: {
     // Enables DefaultExporter and CloudExporter for AI tracing
-    default: { enabled: true }, 
+    default: { enabled: true },
   },
 });