04-13-2020
Another update:
We continue to make progress in the complex mess of migration the bbcode from the old forum to the new ones:
- @Scrutinzer wrote some nice code which strips all bbcode from our old code tags (like color, fonts, etc) because these will not work in markdown in the new forums.
- After more testing, it became clear also that old bbcode tags like color, which look good in one theme, look terrible in other themes. So, I have decided to strip out the vast majority of these legacy bbcode tags in the migration everwhere (COLOR, SIZE, FONT, etc). This insures that themes in the new forums are not constrained by low value color, fonts and size types of bbcode.
- In addition, inline code tags need an extra space before and after when the migrate to MD because often users do not put spaces and this causes markdown (MD) errors.
On the system admin side:
- I found out that Docker on MacOS does not support unix sockets being shared outside the docker container. I found this out after spending two days trying to set up a new test configuration which decouples the Discourse app in the container with external ports. However, it works fine on Linux. This means that I will migrate all Discourse apps (staging and production) from a single standalone docker container to a two container solution, where the postgres db data is in one container and the web app is an other container.
- In addition, the web app container will no longer expose TCP/IP web sockets directly but will only expose a unix socket. This means we can decouple the web app from the web server; and so, for example, we can completely rebuild the app in a new docker web container, and expose a different unix socket.
- On nginx, this means we can just switch between docker instances with a simple symbolic link change outside the container. This is very powerful. I have tested it and it works flawlessly.
- On apache2, reverse proxy symbolic links to unix sockets in the docker container do not work (will not connect); only direct links to the unix socket works in the proxy pass configuration to a shared docker unix socket, so this requires an apache server restart.
- nginx does not require a restart because the symlink works.
- Yesterday, I got both apache2 and nginx working in reverse proxy mode to a unix socket; but ran into some minor issues with SSL; which is the next layer of testing I need to do. It worked flawlessly on http but I ran into some small issues on https (SSL).
- Also, in quick testing, I found that ngnix was about five percent faster than apache2, but that was on two different servers with very different configurations and traffic, so this comparison is not (yet) relevant nor valid
So where are we now?
- Still testing various preprocessing code routines against the DB, looking for anomalies. We are not hoping for 100% perfect, but we do want to keep all the code and solutions in tact for sure (sans color, font size, fonts, etc).
- Soon, I will work on getting SSL to work on the "two container with web server reversed proxy to an exposed docker unix socket" (TTWSRPEDUS, LOL) solution on a staging server.
That's it for now.
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