I’m migrating a 15 year old community to discourse, and we’ve decided not to migrate the hundred thousand plus posts, rather selected ones of lasting value. On the old board, images are saved as https://static.xxx/uploads/xxx.jpg. and we’ll keep that server alive post-migration. When moving posts with images, it’s not grabbing and making the thumbnail, no matter whether I wrap the images in () or not. It does it for the current session but when I force-reload the page or another user looks at it, we get the broken picture icon: [Screen Shot 2020-02-04 at 9.30.58 AM] The icon links directly to the picture on the static server, which is working fine. But thumbnails would be ‘nice’. The only thing I can think of is a firewall problem - both servers are in private IP space, and the firewall prevents an internal server from accessing another via an external IP. I believe I’ve set this correctly in the host’s /etc/hosts file, but am NOT a docker expert. When I ping the static image server I get the correct internal IP address from regular command prompt. (note to self, enter the container and test from there) Is there something else I need to do to force static.xx to be the internal IP? External images when wrapped with () are working as expected with the lightbox.

[image] Stephen: ./launcher enter app aha thats the issue. resolves to external ip. root@discourse-app:/var/www/discourse# cat /etc/hosts 127.0.0.1 localhost ::1 localhost ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters 172.17.0.2 discourse-app Added, and… success!

You could have it talk to an internal DNS server? It depends on your layer 3 topology but that would stop all loopback chatter.

when i ping the asset server i get the internal ip is docker using an alternate host file?

Use ./launcher enter app to find out.

That’s an issue… although once the file has been brought into discourse, the original will no longer be referenced, right?

Thumbnails not being pulled

Product Support

Stephen (Stephen) February 4, 2020, 4:30pm 6

Altering the hosts file in the container won’t persist between rebuilds. Better to troubleshoot your DNS chain than bodge it.

Topic		Replies	Views
Broken images inside posts Product Support	3	3793	October 27, 2015
Upgrade with backup pictures server over ip adress Product Support	1	335	October 28, 2021
Why the icon address is localhost when I use an ip as hostname Product Support	13	1770	April 14, 2021
Can't upload images when domain name is an IP address Product Support	9	1617	January 20, 2016
Our discourse Images are not lightboxed Product Support	34	4256	July 28, 2020

Thumbnails not being pulled

Related topics