How to write startup command in nodejs App Service (Stack: node20 LTS OS:Linux)？

Question

We need to install pm2-logrotate module in webapp, however the webapp can't start when input startup command in App Service. Could you please help to confirm how to write the start command in nodejs webapp and let the webapp start successfully?

Error screenshot : If we don't input start command in webapp, the webapp can start successfully.

Start command: install pm2-logrotate module

Doker log:

2024-07-11T15:24:33.300Z INFO - Starting container for site

2024-07-11T15:24:33.301Z INFO - docker run -d --expose=8080 --name nodejs0711_0_3d6f0176 -e WEBSITE_USE_DIAGNOSTIC_SERVER=true -e WEBSITE_SITE_NAME=nodejs0711 -e WEBSITE_AUTH_ENABLED=False -e WEBSITE_ROLE_INSTANCE_ID=0 -e WEBSITE_HOSTNAME=nodejs0711.chinacloudsites.cn -e WEBSITE_INSTANCE_ID=37c77572be775c3da9e718e75bdd3dcd6c69246656e6f77972070ce4bfef6455 appsvc/node:20-lts_20240619.2.tuxprod pm2 install pm2-logrotate

2024-07-11T15:24:33.302Z INFO - Logging is not enabled for this container.

Please use https://aka.ms/linux-diagnostics to enable logging to see container logs here.

2024-07-11T15:24:36.378Z INFO - Initiating warmup request to container nodejs0711_0_3d6f0176 for site nodejs0711

2024-07-11T15:24:53.479Z INFO - Waiting for response to warmup request for container nodejs0711_0_3d6f0176. Elapsed time = 17.1014129 sec

2024-07-11T15:25:09.013Z INFO - Waiting for response to warmup request for container nodejs0711_0_3d6f0176. Elapsed time = 32.6347812 sec

2024-07-11T15:25:24.567Z INFO - Waiting for response to warmup request for container nodejs0711_0_3d6f0176. Elapsed time = 48.1890842 sec

2024-07-11T15:25:40.122Z INFO - Waiting for response to warmup request for container nodejs0711_0_3d6f0176. Elapsed time = 63.7435066 sec

2024-07-11T15:25:54.622Z ERROR - Container nodejs0711_0_3d6f0176 for site nodejs0711 has exited, failing site start

2024-07-11T15:25:54.643Z ERROR - Container nodejs0711_0_3d6f0176 didn't respond to HTTP pings on port: 8080, failing site start. See container logs for debugging.

2024-07-11T15:25:54.714Z INFO - Stopping site nodejs0711 because it failed during startup.

Default docker log: we can see the pm2-logrotate module was installed successfully.

2024-07-11T15:24:34.303085997Z _____

2024-07-11T15:24:34.303142997Z / _ \ __________ _________ ____

2024-07-11T15:24:34.303149297Z / /\ \__ / | _ __ _/ __ \

2024-07-11T15:24:34.303153097Z / | / /| | /| | /\ ___/

2024-07-11T15:24:34.303156597Z _| /_____ _/ || ___ >

2024-07-11T15:24:34.303160297Z / / /

2024-07-11T15:24:34.303163697Z A P P S E R V I C E O N L I N U X

2024-07-11T15:24:34.303167197Z

2024-07-11T15:24:34.303170597Z Documentation: http://aka.ms/webapp-linux

2024-07-11T15:24:34.303173897Z NodeJS quickstart: https://aka.ms/node-qs

2024-07-11T15:24:34.303177197Z NodeJS Version : v20.14.0

2024-07-11T15:24:34.303180497Z Note: Any data outside '/home' is not persisted

2024-07-11T15:24:34.303184697Z

2024-07-11T15:24:39.240284014Z Starting OpenBSD Secure Shell server: sshd.

2024-07-11T15:24:39.299857429Z WEBSITES_INCLUDE_CLOUD_CERTS is not set to true.

2024-07-11T15:24:39.816415227Z Starting periodic command scheduler: cron.

2024-07-11T15:24:40.143405158Z Could not find build manifest file at '/home/site/wwwroot/oryx-manifest.toml'

2024-07-11T15:24:40.145019161Z Could not find operation ID in manifest. Generating an operation id...

2024-07-11T15:24:40.145039361Z Build Operation ID: 3493ae99-b7d4-40b1-916b-aa04a3f58819

2024-07-11T15:24:42.293290080Z Environment Variables for Application Insight's IPA Codeless Configuration exists..

2024-07-11T15:24:42.518576910Z Writing output script to '/opt/startup/startup.sh'

2024-07-11T15:24:42.795027137Z Running #!/bin/sh

2024-07-11T15:24:42.795077737Z

2024-07-11T15:24:42.795084137Z # Enter the source directory to make sure the script runs where the user expects

2024-07-11T15:24:42.795088537Z cd "/home/site/wwwroot"

2024-07-11T15:24:42.795092537Z

2024-07-11T15:24:42.795096337Z export NODE_PATH=/usr/local/lib/node_modules:$NODE_PATH

2024-07-11T15:24:42.795100337Z if [ -z "$PORT" ]; then

2024-07-11T15:24:42.795104337Z export PORT=8080

2024-07-11T15:24:42.795108437Z fi

2024-07-11T15:24:42.795113037Z

2024-07-11T15:24:42.795116837Z PATH="$PATH:/home/site/wwwroot" pm2 install pm2-logrotate

2024-07-11T15:24:46.745956269Z

2024-07-11T15:24:46.746033770Z -------------

2024-07-11T15:24:46.746042071Z

2024-07-11T15:24:46.746046971Z /\\\\\\_/\\___________/\\/\\\\_

2024-07-11T15:24:46.746052471Z _/\/////////\_/\\\____/\\\/\///////\_

2024-07-11T15:24:46.746058071Z /\_/\_/\//\_/\//\_///___//\_

2024-07-11T15:24:46.746083171Z /\\\\\\/__/\\///\/\//\________/\/

2024-07-11T15:24:46.746089971Z /\//////////\_///\//\__/\//

2024-07-11T15:24:46.746095071Z /\_/\_////\__/\//________

2024-07-11T15:24:46.746100171Z /\_/\_/\_/\/________

2024-07-11T15:24:46.746104971Z /\_/\_/\_/\\\\\\\_

2024-07-11T15:24:46.746110072Z _////////////////////////

2024-07-11T15:24:46.746114772Z

2024-07-11T15:24:46.746119372Z

2024-07-11T15:24:46.746123772Z Runtime Edition

2024-07-11T15:24:46.746128272Z

2024-07-11T15:24:46.746132672Z PM2 is a Production Process Manager for Node.js applications

2024-07-11T15:24:46.746137272Z with a built-in Load Balancer.

2024-07-11T15:24:46.746141872Z

2024-07-11T15:24:46.746146172Z Start and Daemonize any application:

2024-07-11T15:24:46.746150772Z $ pm2 start app.js

2024-07-11T15:24:46.746155272Z

2024-07-11T15:24:46.746159672Z Load Balance 4 instances of api.js:

2024-07-11T15:24:46.746164172Z $ pm2 start api.js -i 4

2024-07-11T15:24:46.746168672Z

2024-07-11T15:24:46.746173072Z Monitor in production:

2024-07-11T15:24:46.746177873Z $ pm2 monitor

2024-07-11T15:24:46.746182373Z

2024-07-11T15:24:46.746186673Z Make pm2 auto-boot at server restart:

2024-07-11T15:24:46.746191273Z $ pm2 startup

2024-07-11T15:24:46.746195773Z

2024-07-11T15:24:46.746200073Z To go further checkout:

2024-07-11T15:24:46.746204473Z http://pm2.io/

2024-07-11T15:24:46.746208973Z

2024-07-11T15:24:46.746213273Z

2024-07-11T15:24:46.746217673Z -------------

2024-07-11T15:24:46.746222173Z

2024-07-11T15:24:46.960528992Z [PM2] Spawning PM2 daemon with pm2_home=/root/.pm2

2024-07-11T15:24:48.159437444Z [PM2] This PM2 is not UP TO DATE

2024-07-11T15:24:48.254012303Z [PM2] Upgrade to version 5.4.2

2024-07-11T15:24:49.460544609Z [PM2] PM2 Successfully daemonized

2024-07-11T15:24:49.557142264Z [PM2][Module] Installing NPM pm2-logrotate module

2024-07-11T15:24:49.686806771Z [PM2][Module] Calling [NPM] to install pm2-logrotate ...

2024-07-11T15:25:52.906496053Z

2024-07-11T15:25:52.914779470Z added 178 packages in 1m

2024-07-11T15:25:52.925089790Z

2024-07-11T15:25:52.925114590Z 22 packages are looking for funding

2024-07-11T15:25:52.925120290Z run npm fund for details

2024-07-11T15:25:52.934718610Z npm notice

2024-07-11T15:25:52.936759714Z npm notice New minor version of npm available! 10.5.0 -> 10.8.2

2024-07-11T15:25:52.943107326Z npm notice Changelog: https://github.com/npm/cli/releases/tag/v10.8.2

2024-07-11T15:25:52.952904546Z npm notice Run npm install -g npm@10.8.2 to update!

2024-07-11T15:25:52.952965946Z npm notice

2024-07-11T15:25:53.035646011Z [PM2][Module] Module downloaded

2024-07-11T15:25:53.080548800Z [PM2][WARN] Applications pm2-logrotate not running, starting...

2024-07-11T15:25:53.188017714Z [PM2] App [pm2-logrotate] launched (1 instances)

2024-07-11T15:25:53.197364433Z Module: pm2-logrotate

2024-07-11T15:25:53.197985334Z $ pm2 set pm2-logrotate:max_size 10M

2024-07-11T15:25:53.199967838Z $ pm2 set pm2-logrotate:retain 30

2024-07-11T15:25:53.206671551Z $ pm2 set pm2-logrotate:compress false

2024-07-11T15:25:53.208114954Z $ pm2 set pm2-logrotate:dateFormat YYYY-MM-DD_HH-mm-ss

2024-07-11T15:25:53.208132554Z $ pm2 set pm2-logrotate:workerInterval 30

2024-07-11T15:25:53.208453355Z **$ pm2 set pm2-logrotate:rotateInterval 0 0 * * ***

2024-07-11T15:25:53.209702557Z $ pm2 set pm2-logrotate:rotateModule true

2024-07-11T15:25:53.209722157Z Modules configuration. Copy/Paste line to edit values.

2024-07-11T15:25:53.217413973Z [PM2][Module] Module successfully installed and launched

2024-07-11T15:25:53.226902092Z [PM2][Module] Checkout module options: $ pm2 conf

2024-07-11T15:25:53.403106642Z ┌────┬──────────────────┬─────────────┬─────────┬─────────┬──────────┬────────┬──────┬───────────┬──────────┬──────────┬──────────┬──────────┐

2024-07-11T15:25:53.403164742Z │ id │ name │ namespace │ version │ mode │ pid │ uptime │ ↺ │ status │ cpu │ mem │ user │ watching │

2024-07-11T15:25:53.403173142Z └────┴──────────────────┴─────────────┴─────────┴─────────┴──────────┴────────┴──────┴───────────┴──────────┴──────────┴──────────┴──────────┘

2024-07-11T15:25:53.406698349Z Module

2024-07-11T15:25:53.433406102Z ┌────┬──────────────────────────────┬───────────────┬──────────┬──────────┬──────┬──────────┬──────────┬──────────┐

2024-07-11T15:25:53.433458903Z │ id │ module │ version │ pid │ status │ ↺ │ cpu │ mem │ user │

2024-07-11T15:25:53.433466003Z ├────┼──────────────────────────────┼───────────────┼──────────┼──────────┼──────┼──────────┼──────────┼──────────┤

2024-07-11T15:25:53.433470903Z │ 0 │ pm2-logrotate │ 2.7.0 │ 150 │ online │ 0 │ 0% │ 20.7mb │ root │

2024-07-11T15:25:53.433475703Z └────┴──────────────────────────────┴───────────────┴──────────┴──────────┴──────┴──────────┴──────────┴──────────┘