build(fly): Add fly.io deploy

Author: shantanuraj

.dockerignore

@@ -0,0 +1,36 @@
+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+/.pnp
+.pnp.js
+
+# testing
+/coverage
+
+# next.js
+/.next/
+/out/
+
+# production
+/build
+
+# misc
+.DS_Store
+
+# debug
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# local env files
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+.vercel
+
+# Typescript
+*.tsbuildinfo
+.env*.local

.github/workflows/fly-deploy.yml

@@ -0,0 +1,18 @@
+# See https://fly.io/docs/app-guides/continuous-deployment-with-github-actions/
+
+name: Fly Deploy
+on:
+  push:
+    branches:
+      - main
+jobs:
+  deploy:
+    name: Deploy app
+    runs-on: ubuntu-latest
+    concurrency: deploy-group    # optional: ensure only one action runs at a time
+    steps:
+      - uses: actions/checkout@v4
+      - uses: superfly/flyctl-actions/setup-flyctl@master
+      - run: flyctl deploy --remote-only
+        env:
+          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}

Dockerfile

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+# syntax = docker/dockerfile:1
+
+# Adjust NODE_VERSION as desired
+ARG NODE_VERSION=24.9.0
+FROM node:${NODE_VERSION}-slim AS base
+
+LABEL fly_launch_runtime="Next.js"
+
+# Next.js app lives here
+WORKDIR /app
+
+# Set production environment
+ENV NODE_ENV="production"
+ARG YARN_VERSION=1.22.19
+RUN npm install -g yarn@$YARN_VERSION --force
+
+
+# Throw-away build stage to reduce size of final image
+FROM base AS build
+
+# Install packages needed to build node modules
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y build-essential node-gyp pkg-config python-is-python3
+
+# Install node modules
+COPY .yarnrc.yml package.json yarn.lock ./
+RUN yarn install --frozen-lockfile --production=false
+
+# Copy application code
+COPY . .
+
+# Build application
+RUN npx next build --experimental-build-mode compile
+
+# Remove development dependencies
+RUN yarn install --production=true
+
+
+# Final stage for app image
+FROM base
+
+# Copy built application
+COPY --from=build /app /app
+
+# Entrypoint sets up the container.
+ENTRYPOINT [ "/app/docker-entrypoint.js" ]
+
+# Start the server by default, this can be overwritten at runtime
+EXPOSE 3000
+CMD [ "yarn", "run", "start" ]

docker-entrypoint.js

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+#!/usr/bin/env node
+
+const { spawn } = require('node:child_process')
+
+const env = { ...process.env }
+
+;(async() => {
+  // If running the web server then prerender pages
+  if (process.argv.slice(-3).join(' ') === 'yarn run start') {
+    await exec('npx next build --experimental-build-mode generate')
+  }
+
+  // launch application
+  await exec(process.argv.slice(2).join(' '))
+})()
+
+function exec(command) {
+  const child = spawn(command, { shell: true, stdio: 'inherit', env })
+  return new Promise((resolve, reject) => {
+    child.on('exit', code => {
+      if (code === 0) {
+        resolve()
+      } else {
+        reject(new Error(`${command} failed rc=${code}`))
+      }
+    })
+  })
+}

fly.toml

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+# fly.toml app configuration file generated for podcst on 2025-12-20T23:37:09+01:00
+#
+# See https://fly.io/docs/reference/configuration/ for information about how to use this file.
+#
+
+app = 'podcst'
+primary_region = 'ams'
+
+[build]
+
+[env]
+  HOSTNAME = "0.0.0.0"
+
+[http_service]
+  internal_port = 3000
+  force_https = true
+  auto_stop_machines = 'suspend'
+  auto_start_machines = true
+  min_machines_running = 0
+  processes = ['app']
+
+[[vm]]
+  memory = '1gb'
+  cpus = 1
+  memory_mb = 1024

package.json

@@ -47,6 +47,7 @@
     "zustand": "5.0.2"
   },
   "devDependencies": {
+    "@flydotio/dockerfile": "^0.7.10",
     "@types/chromecast-caf-sender": "1.0.11",
     "@types/eslint": "9.6.1",
     "@types/eslint-config-prettier": "6.11.3",