Azure App Service
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Python Dash Plotly App Container Crashing during Start Up
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(16, 73%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPB%3C/text%3E%3C/svg%3E)
Patrick Brett
1
Reputation point
Python Web App keeps crashing during start up.
Crash Logs are as follows:
Container data-visualisation_0_466e17a4 couldn't be started: Logs = 2022-01-05T16:54:30.145701884Z
2022-01-05T16:54:30.145740785Z _____
2022-01-05T16:54:30.145748985Z / _ \ __________ _________ ____
2022-01-05T16:54:30.145755785Z / /_\ ___ / | _ __ _/ __ \
2022-01-05T16:54:30.145762485Z / | / /| | /| | /\ /
2022-01-05T16:54:30.145768685Z _|__ /_____ ____/ || _ >
2022-01-05T16:54:30.145776285Z / / /
2022-01-05T16:54:30.145782785Z
2022-01-05T16:54:30.145788386Z A P P S E R V I C E O N L I N U X
2022-01-05T16:54:30.145794386Z
2022-01-05T16:54:30.145800286Z Documentation: http://aka.ms/webapp-linux
2022-01-05T16:54:30.145806286Z Python 3.9.0
2022-01-05T16:54:30.145812186Z Note: Any data outside '/home' is not persisted
2022-01-05T16:54:30.650996890Z Starting OpenBSD Secure Shell server: sshd.
2022-01-05T16:54:30.684947629Z App Command Line not configured, will attempt auto-detect
2022-01-05T16:54:30.686210053Z Launching oryx with: create-script -appPath /home/site/wwwroot -output /opt/startup/startup.sh -virtualEnvName antenv -defaultApp /opt/defaultsite
2022-01-05T16:54:30.759367629Z Found build manifest file at '/home/site/wwwroot/oryx-manifest.toml'. Deserializing it...
2022-01-05T16:54:30.762503288Z Build Operation ID: |KiJ+4QVcFvM=.b619d52d_
2022-01-05T16:54:30.763605309Z Output is compressed. Extracting it...
2022-01-05T16:54:30.763627009Z Oryx Version: 0.2.20210805.1, Commit: f3aa4eb16e7085ef7fd6f4521daa9b51d69fedd8, ReleaseTagName: 20210805.1
2022-01-05T16:54:30.765161738Z Extracting '/home/site/wwwroot/output.tar.gz' to directory '/tmp/8d9d06b6425929f'...
2022-01-05T16:54:46.686914441Z App path is set to '/tmp/8d9d06b6425929f'
2022-01-05T16:54:47.396573848Z Detected an app based on Flask
2022-01-05T16:54:47.396673750Z Generating gunicorn command for 'app:app'
2022-01-05T16:54:47.586098608Z Writing output script to '/opt/startup/startup.sh'
2022-01-05T16:54:47.729017268Z Using packages from virtual environment antenv located at /tmp/8d9d06b6425929f/antenv.
2022-01-05T16:54:47.729068669Z Updated PYTHONPATH to ':/tmp/8d9d06b6425929f/antenv/lib/python3.9/site-packages'
2022-01-05T16:54:48.368179512Z [2022-01-05 16:54:48 +0000] [38] [INFO] Starting gunicorn 20.1.0
2022-01-05T16:54:48.368714722Z [2022-01-05 16:54:48 +0000] [38] [INFO] Listening at: http://0.0.0.0:8000 (38)
2022-01-05T16:54:48.368737822Z [2022-01-05 16:54:48 +0000] [38] [INFO] Using worker: sync
2022-01-05T16:54:48.373242409Z [2022-01-05 16:54:48 +0000] [39] [INFO] Booting worker with pid: 39
The app start up time (WEBSITES_CONTAINER_START_TIME_LIMIT) has been increased to 1800 but it still crashes.
Locally the app will run without any issues.
Azure App Service
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JimmyYang-MSFT 58,641 Reputation points Microsoft External Staff2022-01-06T06:35:23.967+00:00 Our forum is mainly focused on the general issue of Microsoft Teams for Linux troubleshooting. According to your description, your questions is related to Python web app, which is not in our support scope. I will remove teams-linux tag to your thread. Thanks for your understanding!
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Ryan Hill 30,281 Reputation points Microsoft Employee Moderator2022-01-06T16:51:39.007+00:00 Hi @Patrick Brett ,
I'm not seeing the error in your log. What's after
2022-01-05T16:54:48.373242409Z [2022-01-05 16:54:48 +0000] [39] [INFO] Booting worker with pid: 39
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Ryan Hill 30,281 Reputation points Microsoft Employee Moderator
2022-01-11T14:29:44.32+00:00 @Patrick Brett , just following to see if you can provide the error message you're getting?
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