Cannot deploy Flask application with Elastic Beanstalk

I have a simple use case. I want to deploy my Flask application with Elastic Beanstalk, however after trying for multiple hours I cannot seem to make it happen.

My application is pretty standard: -I have "app.py" file with my python code where I only have to import "flask" and "sqlite". -I have "templates" folder with my .HTML files and "static" folder with my .CSS and .PNG files. -I have an "expenses.db" and "users.db" databases with less than 50KB of data in both combined.

My application works when I run the "python app.py" command in CMD through my virtual environment.

My requirements.txt only includes the basic libraries: blinker==1.6.2 click==8.1.3 colorama==0.4.6 Flask==2.3.2 itsdangerous==2.1.2 Jinja2==3.1.2 MarkupSafe==2.1.2 Werkzeug==2.3.4

Unfortunately it is my first time using AWS, but after a few hours I managed to successfully set up the environment, however I now cannot deploy my application, and I am guessing it is a pretty standard use case.

The EVENTS say: May 26, 2023 15:25:44 (UTC+2) INFO The environment was reverted to the previous configuration setting. May 26, 2023 15:25:26 (UTC+2) ERROR During an aborted deployment, some instances may have deployed the new application version. To ensure all instances are running the same version, re-deploy the appropriate application version. May 26, 2023 15:25:26 (UTC+2) ERROR Failed to deploy application. May 26, 2023 15:25:26 (UTC+2) ERROR Unsuccessful command execution on instance id(s) 'i-0dcd82ee6b813bdf4'. Aborting the operation. May 26, 2023 15:25:26 (UTC+2) INFO Command execution completed on all instances. Summary: [Successful: 0, Failed: 1]. May 26, 2023 15:25:26 (UTC+2) ERROR [Instance: i-0dcd82ee6b813bdf4] Command failed on instance. Return code: 1 Output: Engine execution has encountered an error.. May 26, 2023 15:25:23 (UTC+2) ERROR Instance deployment failed. For details, see 'eb-engine.log'. May 26, 2023 15:25:23 (UTC+2) ERROR Instance deployment: Your source bundle has issues that caused the deployment to fail. For details, see 'eb-engine.log'. May 26, 2023 15:25:19 (UTC+2) INFO Deploying new version to instance(s). May 26, 2023 15:24:45 (UTC+2) INFO Updating environment IU-Appl-env-1's configuration settings. May 26, 2023 15:24:36 (UTC+2) INFO Environment update is starting. May 26, 2023 15:18:25 (UTC+2) INFO Deleted log fragments for this environment.

and my "cb-engine.log" sayss 2023/05/26 12:17:56.699238 [INFO] Starting... 2023/05/26 12:17:56.699296 [INFO] Starting EBPlatform-PlatformEngine 2023/05/26 12:17:56.699372 [INFO] reading event message file 2023/05/26 12:17:56.699551 [INFO] Engine received EB command userdata-exec

2023/05/26 12:17:56.709787 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-get-metadata -s arn:aws:cloudformation:eu-central-1:159258688165:stack/awseb-e-rr9c3sfmup-stack/2f3744f0-fbbf-11ed-8d54-064cd1f3cb1a -r AWSEBAutoScalingGroup --region eu-central-1 2023/05/26 12:17:57.441546 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-get-metadata -s arn:aws:cloudformation:eu-central-1:159258688165:stack/awseb-e-rr9c3sfmup-stack/2f3744f0-fbbf-11ed-8d54-064cd1f3cb1a -r AWSEBBeanstalkMetadata --region eu-central-1 2023/05/26 12:17:58.300973 [INFO] This is a workflow controlled instance. 2023/05/26 12:17:58.301072 [INFO] Engine command: (env-launch)

2023/05/26 12:17:58.301211 [INFO] Executing instruction: SyncClock 2023/05/26 12:17:58.301215 [INFO] Starting SyncClock 2023/05/26 12:17:58.301230 [INFO] Running command /bin/sh -c /usr/bin/chronyc tracking 2023/05/26 12:17:58.308629 [INFO] Reference ID : 00000000 () Stratum : 0 Ref time (UTC) : Thu Jan 01 00:00:00 1970 System time : 0.000000000 seconds fast of NTP time Last offset : +0.000000000 seconds RMS offset : 0.000000000 seconds Frequency : 31.829 ppm fast Residual freq : +0.000 ppm Skew : 0.000 ppm Root delay : 1.000000000 seconds Root dispersion : 1.000000000 seconds Update interval : 0.0 seconds Leap status : Not synchronised

2023/05/26 12:17:58.308661 [INFO] Running command /bin/sh -c /usr/bin/chronyc -a makestep 2023/05/26 12:17:58.315713 [INFO] 200 OK

2023/05/26 12:17:58.315794 [INFO] Skipping Configure OS 2023/05/26 12:17:58.315802 [INFO] Skipping LockRepo 2023/05/26 12:17:58.315808 [INFO] Skipping GenerateEBBanner 2023/05/26 12:17:58.315815 [INFO] Skipping Install Process Manager 2023/05/26 12:17:58.315821 [INFO] Skipping install syslog 2023/05/26 12:17:58.315826 [INFO] Skipping install cron 2023/05/26 12:17:58.315831 [INFO] Skipping install proxy 2023/05/26 12:17:58.315837 [INFO] Skipping installhealthd 2023/05/26 12:17:58.315842 [INFO] Skipping Install Log Streaming Manager 2023/05/26 12:17:58.315847 [INFO] Skipping install X-Ray 2023/05/26 12:17:58.315852 [INFO] Skipping install Third Party License 2023/05/26 12:17:58.315857 [INFO] Skipping install httpd 2023/05/26 12:17:58.315865 [INFO] Instance has NOT been bootstrapped 2023/05/26 12:17:58.315869 [INFO] Executing instruction: installSqsd 2023/05/26 12:17:58.315873 [INFO] This is a web server environment instance, skip install sqsd daemon ... 2023/05/26 12:17:58.315878 [INFO] Instance has NOT been bootstrapped 2023/05/26 12:17:58.315882 [INFO] Executing instruction: bootstraphealthd 2023/05/26 12:17:58.315886 [INFO] this is a basic health env, skip bootstrap healthd instruction... 2023/05/26 12:17:58.315890 [INFO] Executing instruction: GetSetupProxyLog 2023/05/26 12:17:58.316034 [INFO] Skipping Install yum packages 2023/05/26 12:17:58.316041 [INFO] Skipping Configure Python site-packages 2023/05/26 12:17:58.316047 [INFO] Skipping Install Python Modules 2023/05/26 12:17:58.316052 [INFO] Skipping MarkBaked 2023/05/26 12:17:58.316058 [INFO] Instance has NOT been bootstrapped 2023/05/26 12:17:58.316062 [INFO] Executing instruction: TuneSystemSettings 2023/05/26 12:17:58.316065 [INFO] Starting TuneSystemSettings 2023/05/26 12:17:58.316070 [INFO] Instance has NOT been bootstrapped 2023/05/26 12:17:58.316998 [INFO] Executing instruction: GetSetupLogRotate 2023/05/26 12:17:58.317003 [INFO] Initialize LogRotate files and directories 2023/05/26 12:17:58.328678 [INFO] Instance has NOT been bootstrapped 2023/05/26 12:17:58.328691 [INFO] Executing instruction: BootstrapCFNHup 2023/05/26 12:17:58.328694 [INFO] Bootstrap cfn-hup 2023/05/26 12:17:58.329979 [INFO] Copying file /opt/elasticbeanstalk/config/private/aws-eb-command-handler.conf to /etc/cfn/hooks.d/aws-eb-command-handler.conf 2023/05/26 12:17:58.331277 [INFO] Executing instruction: StartCFNHup 2023/05/26 12:17:58.331290 [INFO] Start cfn-hup 2023/05/26 12:17:58.331318 [INFO] Running command /bin/sh -c systemctl show -p PartOf cfn-hup.service 2023/05/26 12:17:58.354167 [INFO] cfn-hup is not registered with EB yet, registering it now 2023/05/26 12:17:58.354216 [INFO] Running command /bin/sh -c systemctl show -p PartOf cfn-hup.service 2023/05/26 12:17:58.385914 [INFO] Running command /bin/sh -c systemctl daemon-reload 2023/05/26 12:17:58.918397 [INFO] Running command /bin/sh -c systemctl reset-failed 2023/05/26 12:17:58.940875 [INFO] Running command /bin/sh -c systemctl is-enabled aws-eb.target 2023/05/26 12:17:58.952586 [INFO] Running command /bin/sh -c systemctl enable aws-eb.target 2023/05/26 12:17:59.483576 [INFO] Running command /bin/sh -c systemctl start aws-eb.target 2023/05/26 12:17:59.496835 [INFO] Running command /bin/sh -c systemctl enable cfn-hup.service 2023/05/26 12:18:00.006690 [INFO] Synchronizing state of cfn-hup.service with SysV service script with /usr/lib/systemd/systemd-sysv-install. Executing: /usr/lib/systemd/systemd-sysv-install enable cfn-hup Created symlink /etc/systemd/system/multi-user.target.wants/cfn-hup.service → /etc/systemd/system/cfn-hup.service.

2023/05/26 12:18:00.006724 [INFO] Running command /bin/sh -c systemctl is-active cfn-hup.service 2023/05/26 12:18:00.018338 [INFO] cfn-hup process is not running, starting it now 2023/05/26 12:18:00.018367 [INFO] Running command /bin/sh -c systemctl show -p PartOf cfn-hup.service 2023/05/26 12:18:00.038791 [INFO] Running command /bin/sh -c systemctl is-active cfn-hup.service 2023/05/26 12:18:00.056752 [INFO] Running command /bin/sh -c systemctl start cfn-hup.service 2023/05/26 12:18:00.123535 [INFO] Instance has NOT been bootstrapped 2023/05/26 12:18:00.123559 [INFO] Executing instruction: SetupPublishLogCronjob 2023/05/26 12:18:00.123564 [INFO] Setup publish logs cron job... 2023/05/26 12:18:00.123569 [INFO] Copying file /opt/elasticbeanstalk/config/private/logtasks/cron/publishlogs to /etc/cron.d/publishlogs 2023/05/26 12:18:00.125438 [INFO] Instance has NOT been bootstrapped 2023/05/26 12:18:00.125453 [INFO] Executing instruction: MarkBootstrapped 2023/05/26 12:18:00.125458 [INFO] Starting MarkBootstrapped 2023/05/26 12:18:00.125463 [INFO] Instance has NOT been bootstrapped 2023/05/26 12:18:00.125581 [INFO] Marked instance as Bootstrapped 2023/05/26 12:18:00.125588 [INFO] Executing instruction: Save CFN Stack Info 2023/05/26 12:18:00.125648 [INFO] Starting SwitchCFNStack 2023/05/26 12:18:00.125653 [INFO] Executing cleanup logic 2023/05/26 12:18:00.125662 [INFO] Platform Engine finished execution on command: env-launch

2023/05/26 12:18:26.492401 [INFO] Starting... 2023/05/26 12:18:26.492449 [INFO] Starting EBPlatform-PlatformEngine 2023/05/26 12:18:26.492468 [INFO] reading event message file 2023/05/26 12:18:26.492707 [INFO] Engine received EB command cfn-hup-exec

2023/05/26 12:18:26.636618 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-get-metadata -s arn:aws:cloudformation:eu-central-1:159258688165:stack/awseb-e-rr9c3sfmup-stack/2f3744f0-fbbf-11ed-8d54-064cd1f3cb1a -r AWSEBAutoScalingGroup --region eu-central-1 2023/05/26 12:18:27.081083 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-get-metadata -s arn:aws:cloudformation:eu-central-1:159258688165:stack/awseb-e-rr9c3sfmup-stack/2f3744f0-fbbf-11ed-8d54-064cd1f3cb1a -r AWSEBBeanstalkMetadata --region eu-central-1 2023/05/26 12:18:27.585979 [INFO] checking whether command app-deploy is applicable to this instance... 2023/05/26 12:18:27.585990 [INFO] this command is applicable to the instance, thus instance should execute command 2023/05/26 12:18:27.585993 [INFO] Engine command: (app-deploy)

2023/05/26 12:18:27.585997 [INFO] Downloading EB Application... 2023/05/26 12:18:27.585999 [INFO] Region: eu-central-1 2023/05/26 12:18:27.586001 [INFO] envID: e-rr9c3sfmup 2023/05/26 12:18:27.586004 [INFO] envBucket: elasticbeanstalk-eu-central-1-159258688165 2023/05/26 12:18:27.586006 [INFO] Using manifest file name from command request 2023/05/26 12:18:27.586012 [INFO] Unable to get version manifest file. 2023/05/26 12:18:27.586020 [INFO] Downloading latest manifest available. 2023/05/26 12:18:27.586024 [INFO] Download latest app version manifest 2023/05/26 12:18:27.586121 [INFO] resources/environments/e-rr9c3sfmup/_runtime/versions/manifest 2023/05/26 12:18:27.634805 [INFO] latestManifest key *: resources/environments/e-rr9c3sfmup/_runtime/versions/manifest_1685103406248

2023/05/26 12:18:27.635009 [INFO] Downloading: bucket: elasticbeanstalk-eu-central-1-159258688165, object: /resources/environments/e-rr9c3sfmup/_runtime/versions/manifest_1685103406248 2023/05/26 12:18:27.652050 [INFO] Download successful100bytes downloaded 2023/05/26 12:18:27.652139 [INFO] Trying to read and parse version manifest... 2023/05/26 12:18:27.652476 [INFO] Downloading: bucket: elasticbeanstalk-eu-central-1-159258688165, object: /resources/environments/e-rr9c3sfmup/_runtime/_versions/IU-Appl/4.0 2023/05/26 12:18:27.727270 [INFO] Download successful1636869bytes downloaded 2023/05/26 12:18:27.727384 [INFO] Executing instruction: ElectLeader 2023/05/26 12:18:27.727390 [INFO] Running leader election for instance i-0dcd82ee6b813bdf4... 2023/05/26 12:18:27.727392 [INFO] Calling the cfn-elect-cmd-leader to elect the command leader. 2023/05/26 12:18:27.727405 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-elect-cmd-leader --stack arn:aws:cloudformation:eu-central-1:159258688165:stack/awseb-e-rr9c3sfmup-stack/2f3744f0-fbbf-11ed-8d54-064cd1f3cb1a --command-name ElasticBeanstalkCommand-AWSEBAutoScalingGroup --invocation-id 81fc8159-b362-4ef0-b1fe-ae448bfa9802 --listener-id i-0dcd82ee6b813bdf4 --region eu-central-1 2023/05/26 12:18:28.085028 [INFO] Instance is Leader. 2023/05/26 12:18:28.085080 [INFO] Executing instruction: stopSqsd 2023/05/26 12:18:28.085086 [INFO] This is a web server environment instance, skip stop sqsd daemon ... 2023/05/26 12:18:28.085089 [INFO] Executing instruction: PreBuildEbExtension 2023/05/26 12:18:28.085093 [INFO] Starting executing the config set Infra-EmbeddedPreBuild. 2023/05/26 12:18:28.085114 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-init -s arn:aws:cloudformation:eu-central-1:159258688165:stack/awseb-e-rr9c3sfmup-stack/2f3744f0-fbbf-11ed-8d54-064cd1f3cb1a -r AWSEBAutoScalingGroup --region eu-central-1 --configsets Infra-EmbeddedPreBuild 2023/05/26 12:18:28.577001 [INFO] Finished executing the config set Infra-EmbeddedPreBuild.

2023/05/26 12:18:28.577038 [INFO] Executing instruction: StageApplication 2023/05/26 12:18:28.577570 [ERROR] An error occurred during execution of command [app-deploy] - [StageApplication]. Stop running the command. Error: staging application failed due to invalid zip file

2023/05/26 12:18:28.577576 [INFO] Executing cleanup logic 2023/05/26 12:18:28.577664 [INFO] CommandService Response: {"status":"FAILURE","api_version":"1.0","results":[{"status":"FAILURE","msg":"Engine execution has encountered an error.","returncode":1,"events":[{"msg":"Instance deployment: Your source bundle has issues that caused the deployment to fail. For details, see 'eb-engine.log'.","timestamp":1685103508577,"severity":"ERROR"},{"msg":"Instance deployment failed. For details, see 'eb-engine.log'.","timestamp":1685103508577,"severity":"ERROR"}]}]}

2023/05/26 12:18:28.577680 [INFO] Platform Engine finished execution on command: app-deploy

2023/05/26 12:20:37.766827 [INFO] Starting... 2023/05/26 12:20:37.766955 [INFO] Starting EBPlatform-PlatformEngine 2023/05/26 12:20:37.766976 [INFO] reading event message file 2023/05/26 12:20:37.767162 [INFO] Engine received EB command cfn-hup-exec

2023/05/26 12:20:37.873560 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-get-metadata -s arn:aws:cloudformation:eu-central-1:159258688165:stack/awseb-e-rr9c3sfmup-stack/2f3744f0-fbbf-11ed-8d54-064cd1f3cb1a -r AWSEBAutoScalingGroup --region eu-central-1 2023/05/26 12:20:38.417209 [INFO] Running command /bin/sh -c /opt/aws/bin/cfn-get-metadata -s arn:aws:cloudformation:eu-central-1:159258688165:stack/awseb-e-rr9c3sfmup-stack/2f3744f0-fbbf-11ed-8d54-064cd1f3cb1a -r AWSEBBeanstalkMetadata --region eu-central-1 2023/05/26 12:20:38.807697 [INFO] checking whether command bundle-log is applicable to this instance... 2023/05/26 12:20:38.807711 [INFO] this command is applicable to the instance, thus instance should execute command 2023/05/26 12:20:38.807714 [INFO] Engine comman