How to change Docker ENV variable (change ROOT_URL)

Issue

Impacted version: 0.62

Server Setup Information:

• Operating System: Ubuntu 14.04
• Deployment Method: Docker
• Node Version: v4.8.6
• MongoDB Version: 3.2.18
• ROOT_URL environment variable (Is there a subfolder?): plesk.example.org:4000

Problem description: We want to change the ROOT_URL ENV from plesk.example.org:4000 to board.example.org

So I’ve set a proxy rule for my board.example.org vhost:

ProxyPassMatch   "^/(sockjs\/.*\/websocket)$" "ws://127.0.0.1:4000/$1"
ProxyPass        "/" "http://127.0.0.1:4000/"
ProxyPassReverse "/" "http://127.0.0.1:4000/"

Now I want to change the ROOT_URL, what is the best approach?

[xet7]

@Michael2222

docker-compose stop wekan-app

Then change ROOT_URL in docker-compose.yml

docker-compose start wekan-app

[compumatter]

DOCKER SOLUTION TO MODIFY ROOT_URL

>$ sudo service docker start

This next method will not require a container ID to stop the Wekan container
>$ sudo docker stop $(docker ps -q --filter ancestor=quay.io/wekan/wekan:master)
>$ sudo vim pathto...wekan-mongodb/docker-compose.yml

(now you are inside docker-compose.yml)
# Modify the ROOT_URL variable ie; 
# Comment out the existing http://localhost
# - ROOT_URL=http://localhost  #   <=== using only at same laptop/desktop where Wekan is installed
# Add the modified version by you / your company
- ROOT_URL=https://projects.mydomain.com  #   <=== using only at same laptop/desktop where Wekan is installed
(save and exit they docker-compose.yml)

OK, now let's commit those changes to the container with:

>$ docker-compose up -d

This will commit the changes **AND** start the container at the same time 

Done - test results in browser