rough in nginx

See: https://community.fly.io/t/ssr-node-js-varnish-proxy-do-i-need-nginx/14616/8

gdf.js

@@ -19,6 +19,7 @@ export const defaults = {
   legacyPeerDeps: false,
   link: true,
   litefs: false,
+  nginxRoot: '',
   port: 0,
   swap: '',
   windows: false,
@@ -175,6 +176,7 @@ export class GDF {
     if (this.litefs) packages.push('ca-certificates', 'fuse3')
     if (this.remix && this.sqlite3) packages.push('sqlite3')
     if (this.prisma) packages.push('openssl')
+    if (this.options.nginxRoot) packages.push('nginx')
 
     return packages.sort()
   }
@@ -351,6 +353,21 @@ export class GDF {
     return this.#packager
   }
 
+  // install modules needed to run
+  installModules() {
+    const modules = []
+
+    if (this.options.nginxRoot && !this.#pj.dependencies?.foreman) {
+      modules.push('foreman')
+    }
+
+    if (modules.length === 0) return
+    const add = this.packager === 'npm' ? 'install' : 'add'
+    for (const module of modules) {
+      execSync(`${this.packager} ${add} ${module}`, { stdio: 'inherit' })
+    }
+  }
+
   // install all dependencies in package.json
   get packagerInstall() {
     let install = `${this.packager} install`
@@ -492,6 +509,10 @@ export class GDF {
     return this.runtime.split('/')[0].replaceAll('.', '').toLowerCase()
   }
 
+  get foreman() {
+    if (this.options.nginxRoot) return true
+  }
+
   // command to start the web server
   get startCommand() {
     if (this.options.cmd) return JSON.stringify(this.options.cmd)
@@ -601,6 +622,9 @@ export class GDF {
     this._appdir = appdir
     this.#pj = JSON.parse(fs.readFileSync(path.join(appdir, 'package.json'), 'utf-8'))
 
+    // install modules needed to run
+    this.installModules()
+
     if (options.force) this.#answer = 'a'
 
     // read instructions
@@ -631,6 +655,10 @@ export class GDF {
       templates['litefs.yml.ejs'] = `${this.configDir}litefs.yml`
     }
 
+    if (this.options.nginxRoot) {
+      this.options.nginxRoot = path.join('/app', this.options.nginxRoot)
+    }
+
     for (const [template, filename] of Object.entries(templates)) {
       const dest = await this.#writeTemplateFile(template, filename)
 

index.js

@@ -57,6 +57,10 @@ const options = yargs((hideBin(process.argv)))
     describe: 'use COPY --link whenever possible',
     type: 'boolean'
   })
+  .option('nginx-root', {
+    describe: 'Root directory containing static files to be served by nginx',
+    type: 'string'
+  })
   .option('port', {
     describe: 'expose port',
     type: 'integer'

templates/Dockerfile.ejs

@@ -1,6 +1,6 @@
 # syntax = docker/dockerfile:1
 
-<% if (packager == "bun") { -%>
+<% if (packager === "bun") { -%>
 # Adjust BUN_VERSION as desired
 ARG BUN_VERSION=<%= bunVersion %>
 FROM oven/bun:${BUN_VERSION} as base
@@ -175,10 +175,49 @@ ENTRYPOINT <%- entrypoint %>
 # Deploy arguments 
 <%- emitArgs(options.args.deploy) %>
             
+<% } -%>
+<% if (options.nginxRoot) { -%>
+# configure nginx
+RUN sed -i 's/access_log\s.*;/access_log stdout;/' /etc/nginx/nginx.conf && \
+    sed -i 's/error_log\s.*;/error_log stderr info;/' /etc/nginx/nginx.conf
+
+COPY <<-"EOF" /etc/nginx/sites-available/default
+server {
+  listen <%= port %> default_server;
+  listen [::]:<%= port %> default_server;
+  access_log stdout;
+
+  root <%= options.nginxRoot %>;
+
+  location / {
+    try_files $uri @backend;
+  }
+
+  location @backend {
+    proxy_pass http://localhost:<%= port + 1 %>;
+    proxy_set_header Host $http_host;
+  }
+}
+EOF
+
+<% } -%>
+<% if (foreman) { -%>
+# Build a Procfile for production use
+COPY <<-"EOF" /app/Procfile.prod
+<% if (options.nginxRoot) { -%>
+nginx: /usr/sbin/nginx -g "daemon off;"
+<% } -%>
+app: PORT=<%= port+1 %> <%- startCommand.join(" ") %>
+EOF
+
 <% } -%>
 # Start the server by default, this can be overwritten at runtime
 EXPOSE <%= port %>
 <% if (Object.keys(deployEnv).length > 0) { -%>
 <%- emitEnv(deployEnv) %>
 <% } -%>
+<% if (foreman) { -%>
+CMD [ "<%= packager === "bun" ? 'bunx' : 'npx' %>", "foreman", "start", "--procfile", "Procfile.prod" ]
+<% } else { -%>
 CMD <%- JSON.stringify(startCommand, null, 1).replaceAll(/\n\s*/g, " ") %>
+<% } -%>

test/base/nginx/.dockerignore

@@ -0,0 +1,6 @@
+/.git
+/node_modules
+.dockerignore
+.env
+Dockerfile
+fly.toml

test/base/nginx/Dockerfile

@@ -0,0 +1,73 @@
+# syntax = docker/dockerfile:1
+
+# Adjust NODE_VERSION as desired
+ARG NODE_VERSION=xxx
+FROM node:${NODE_VERSION}-slim as base
+
+LABEL fly_launch_runtime="Node.js"
+
+# Node.js app lives here
+WORKDIR /app
+
+# Set production environment
+ENV NODE_ENV="production"
+
+
+# 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 -y build-essential pkg-config python-is-python3
+
+# Install node modules
+COPY --link package-lock.json package.json ./
+RUN npm ci
+
+# Copy application code
+COPY --link . .
+
+
+# Final stage for app image
+FROM base
+
+# Install packages needed for deployment
+RUN apt-get update -qq && \
+    apt-get install --no-install-recommends -y nginx && \
+    rm -rf /var/lib/apt/lists /var/cache/apt/archives
+
+# Copy built application
+COPY --from=build /app /app
+
+# configure nginx
+RUN sed -i 's/access_log\s.*;/access_log stdout;/' /etc/nginx/nginx.conf && \
+    sed -i 's/error_log\s.*;/error_log stderr info;/' /etc/nginx/nginx.conf
+
+COPY <<-"EOF" /etc/nginx/sites-available/default
+server {
+  listen 3000 default_server;
+  listen [::]:3000 default_server;
+  access_log stdout;
+
+  root /app/public;
+
+  location / {
+    try_files $uri @backend;
+  }
+
+  location @backend {
+    proxy_pass http://localhost:3001;
+    proxy_set_header Host $http_host;
+  }
+}
+EOF
+
+# Build a Procfile for production use
+COPY <<-"EOF" /app/Procfile.prod
+nginx: /usr/sbin/nginx -g "daemon off;"
+app: PORT=3001 npm run start
+EOF
+
+# Start the server by default, this can be overwritten at runtime
+EXPOSE 3000
+CMD [ "npx", "foreman", "start", "--procfile", "Procfile.prod" ]