Thanks Thomas, thanks Cyril

Maybe the following message received via email  is exactly what I need to know for the issue I raised.  

I don't know.  Will not say that I am more puzzled than I was but ... almost.  

JPTh

OpenProject - Support Installation & Updates: RE: Docker Error: Could not spawn process for application /app

Thomas Sloan

Cyril Rohr wrote:

Hello, images are tagged, can you try with openproject/community:10 ? And possibly send the exact command line you're using to launch the image?

Thank you,

Cyril

Same error with using image "10". I am using docker-compose as shown below:

version: '3' services:  openproject:    container_name: openproject    #image: openproject/community:latest    image: openproject/community:10    ports:      - 8091:80    volumes:      - openproject-assets:/var/openproject/assets      - openproject-sup:/var/log/supervisor      - openproject-data:/var/lib/postgresql/9.6/main #      - ./openproject/tmp:/tmp    environment:      - SECRET_KEY_BASE=secret      #- OPENPROJECT_WEB_WORKERS=4 volumes:  openproject-data:    driver: local  openproject-assets:    driver: local  openproject-sup:    driver: local

Since that didn't work I also tried a simple docker run command (shown below) with no luck either (same error as before)

docker run -d -p 8089:80 --name openproject -e SECRET_KEY_BASE=secret -v /home/thomas/docker-openproject/pgdata:/var/openproject/pgdata -v /home/thomas/docker-openproject/static:/var/openproject/assets openproject/community:10

Here is the error that I see

[ N 2020-02-16 18:54:45.7096 403/T5 age/Cor/SecurityUpdateChecker.h:519 ]: Security update check: no update found (next check in 24 hours) Forcefully loading the application. Use :environment to avoid eager loading. [DEPRECATED] Bundler.environment has been removed in favor of Bundler.load (called at /app/lib/open_project/plugins/acts_as_op_engine.rb:178) hook registered Creating scope :order_by_name. Overwriting existing method Sprint.order_by_name. 2020-02-16 18:56:21.992 UTC [475] openproject@openproject LOG:  could not receive data from client: Connection reset by peer [ E 2020-02-16 18:56:22.0673 403/Tc age/Cor/App/Implementation.cpp:221 ]: Could not spawn process for application /app: A timeout occurred while starting a preloader process.  Error ID: de41fe99  Error details saved to: /tmp/passenger-error-r1JneE.html [ E 2020-02-16 18:56:22.1134 403/T7 age/Cor/Con/CheckoutSession.cpp:276 ]: [Client 1-1] Cannot checkout session because a spawning error occurred. The identifier of the error is de41fe99. Please see earlier logs for details about the error.

You have received this notification because you have either subscribed to it, or are involved in it.
To change your notification preferences, please click here: https://community.openproject.org/my/mail_notifications

Hi Jean Pierre

This looks like an issue caused by incomplete upgrade from Debian 9 to Debian 10. 

Try the following in Debian's terminal :

rm -v **/etc/apt/**trusted.gpg

this will remove the  faulty trusted.gpg file

Then  

wget -qO- https:**//dl.packager.io/srv/opf/openproject/**key | sudo apt-key add -

should work correctly and you will be in position to proceed with the installation procedure.