Does Discourse support multiple machines (each with a single docker container) behind a standalone load balancer? I require a Discourse setup to handle the failure of a server, so my standard response is to configure 3 servers behind a load balancer (with the LB handling the SSL certificate). I ha…

[image] andy212: Does Discourse support multiple machines (each with a single docker container) behind a standalone load balancer? Yes, that how we run it at our hosting service . Yes Yes You should configure Using Object Storage for Uploads (S3 & Clones) No, they go to object storage as sai…

Thanks Rafael. Much appreciated. I have run into an issue with the SSL terminated on the load balancer. Discourse specifies all it’s links as HTTP. Is there a way to make Discourse aware that it’s links should be https?

Yes, drop to a rails console and set it to https with: cd /var/discourse ./launcher enter app rails c SiteSetting.force_https = true

Excellent. Thanks again. I presume that I could to the app.yml - exec: rails c "SiteSetting.force_https = true" I have no idea about rails. In my command above, should it be ‘rails c’ or ‘rails r’?

We do have an example of changing site settings on bootstrap in our sample file: samples/standalone.yml master after_code: - exec: cd: $home/plugins cmd: - git clone https://github.com/disc…

Yep, that is where I copied my command from. One last question. Is the docker container monitored? If the docker container stops for any reason, has launcher setup anything to restart it?

Yup, launcher asks Docker to autorestart the containers.

Okay. So I have now have a working discourse on a single machine. I have two other machines. The docker guest /shared volume is pointed to an NFS directory to allow all machines to access the uploads (esp. logos, etc). I have copied the docker images to the machines 2 and 3 (docker save -o app-imag…

You have two options: Use – I think it’s ./launcher start-command app – on the fully set up machine (the “build machine”) to obtain a complete Docker command line Copy the app.yml over, and do what you just attempted (launcher start).

[image] andy212: Is there a way to make Discourse aware that it’s links should be https? I’d set ENV DISCOURSE_FORCE_HTTPS: true

High Availability 3 Server setup

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pfaffman (Jay Pfaffman) February 19, 2021, 4:21pm 14

I’d set ENV DISCOURSE_FORCE_HTTPS: true

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