Use Fly.io machines to auto-stop the staging server when it's not in use.

* Teach the server to exit after $MAX_IDLE_SECONDS of no active requests.
* Update the machines image within the github action.

Author: jyasskin

.github/workflows/staging.yml

@@ -14,7 +14,12 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - uses: superfly/flyctl-actions/setup-flyctl@master
-    - run: flyctl deploy --remote-only webserver
+    - name: Build the image.
+      run: flyctl deploy --remote-only --image-label ${{ github.sha }} --build-only --push webserver
       env:
         FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
         NO_COLOR: 1
+    - name: Update the machine's image.
+      run: flyctl image update --image registry.fly.io/vlach-cookbook-staging:${{ github.sha }} -a vlach-cookbook-staging --yes
+      env:
+        FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}

webserver/.dockerignore

@@ -1,8 +1,11 @@
 .dockerignore
 .env*
 .gitignore
+.terraform*
 Dockerfile
 e2e
 fly.toml
+main.tf
 node_modules/
 playwright*
+terraform*

webserver/astro.config.mjs

@@ -8,7 +8,7 @@ import solidJs from "@astrojs/solid-js";
 export default defineConfig({
   output: 'server',
   adapter: node({
-    mode: 'standalone'
+    mode: 'middleware'
   }),
   integrations: [solidJs()]
 });

webserver/fly.toml

@@ -1,6 +1,14 @@
 # fly.toml file generated for vlach-cookbook on 2022-10-08T14:51:25-07:00
 
 # Use `-a vlach-cookbook` to deploy the production app.
+# The staging app is actually configured using the following commands:
+#
+# fly ips allocate-v4 --shared
+# fly ips allocate-v6
+# fly machine run . --cpus 1 --size shared-cpu-1x --memory 256 --region sea \
+#   --env HOST=:: --env PORT=8080 --env MAX_IDLE_SECONDS=600 --port 443:8080/tcp:tls:http
+#
+# And then see .github/workflows/staging.yml for how its image is updated.
 app = "vlach-cookbook-staging"
 kill_signal = "SIGINT"
 kill_timeout = 5

webserver/package.json

@@ -9,28 +9,30 @@
   "private": true,
   "scripts": {
     "dev": "astro dev",
-    "start": "node ./dist/server/entry.mjs",
+    "start": "node ./server.mjs",
     "build": "astro build",
     "preview": "astro preview",
     "astro": "astro"
   },
   "engines": {
     "node": "18"
   },
-  "packageManager": "pnpm@7.21.0",
+  "packageManager": "pnpm@7.26.1",
   "dependencies": {
     "@astrojs/node": "^4.0.0",
     "@astrojs/solid-js": "^1.2.3",
     "@prisma/client": "^4.8.1",
     "astro": "^1.9.2",
+    "debug": "^4.3.4",
     "dset": "^3.1.2",
+    "express": "^4.18.2",
     "google-auth-library": "^8.7.0",
     "markdown-it": "^13.0.1",
     "prisma": "^4.8.1",
     "solid-js": "^1.6.9"
   },
   "devDependencies": {
-    "@playwright/test": "^1.29.2",
+    "@playwright/test": "1.29.2",
     "@types/markdown-it": "^12.2.3",
     "@types/node": "^18.11.18",
     "dotenv-cli": "^6.0.0"