Quality Modeller Core Linux - SSL Certificate Installation

This article covers adding an SSL certificate to modeller to host it over HTTPS.

1 - Obtain SSL Certificate

For testing you can create a self-singed SSL Certificate.

It is recommended for production you obtain a signed SSL certificate from a registered issuing authority.

You should have a .crt and a .key file. Place these on the host machine's local storage. If you have paced them in a directory different than "/nginx", edit the volumes key in the docker-compose.yml file accordingly – replace these sections with your location.

2 - Setup the custom SSL configuration

The package folder comes with a file called docker-compose-ssl.yml - we will want to copy that file into a new file called docker-compose-custom.yml and then potentially edit this newly created file. If you already have a docker-compose-custom.yml file with some custom configuration elements, we will simply be editing that file instead.

cp docker-compose-ssl.yml docker-compose-custom.yml

By default, the docker-compose-ssl.yml file expects the certificate files obtained in step 1 to be available on the host machine at the following location:

/nginx/server.crt
/nginx/server.key

If you are able to place the files there, you can simply proceed to the next step.

If you are unable to place the certificate files in the /nginx folder for some reason (e.g. permissions), you can edit the docker-compose-custom.yml file to change the location or names of the certificate files under the volumes section of nginx

nginx:
  image: nginx
  volumes:
    - ./nginx/nginx-https.conf:/etc/nginx/nginx.conf
    - [certificate-file-on-host]:/etc/nginx/server.crt
    - [key-file-on-host]:/etc/nginx/server.key

3 - Start (or restart) the Test Modeller Services

Start the Test Modeller services.

./run.sh

4 - Enable TLS v1.2 (Optional)

If you wish to enable TLS v1.2, you also need to edit the package/nginx/nginx-https.conf file to have the following values under the server block. Then restart the Test Modeller services as described in step 4 above.