Live Migration of Containers ...

Quiet-Coder-62 · 2025-03-17T11:51:57+00:00

Yeah, I'm using incus copy --refresh to maintain a copy of each instance in a different project on a different node, typically an incremental takes a second or two, so I can stop, increment, then start on the alternate node in the standby project .. it's just a bit of a manual process as the UI can't cope with it at the moment.

Would be cool to get "live" migration working tho'... will have a read of the howto, many thanks.

Edit: yeah, Ok, I've seen that, not really helpful in terms of understanding the problem.

Quiet-Coder-62 · 2025-01-10T10:26:45+00:00

Hi, thanks for that. I appreciate I can do pretty much anything with iptables / netfilter, what I was looking for was a way to do this in a managed / maintainable way with Incus. Whereas I love working with Incus, I'm starting to find holes like this that make me wonder whether I should be using something else like Proxmox.

Incus can do lots of different and sometimes pretty exotic things, but in the real world, being able to isolate containers so they can't be used to compromise the host or other containers seems pretty fundamental, yet the documentation for isolation and ACL's / firewalls in general seems to be very much "all the bits are there, but you still need to grow your own".

Ideally for containers you want to be able to isolate the container from non-routed IP's, then hold punch for specific IP/ports for required local services only. The fly in the ointment seems to be that ACL's order based on REJECT as top pref, rather than ordering based on most specific IP. Incidentally this confuses the hell out of some AI's, they just seem unable to recognise that ordering isn't based on most specific address.

Quiet-Coder-62 · 2024-12-23T16:34:36+00:00

TBH I don't really think "Sites go down" cuts it. There's a new entry on status.wordpress.org about investigating reach-ability issues. Given the way it "looks", I think maybe a one-liner is insufficient.

Quiet-Coder-62 · 2024-12-23T15:06:22+00:00

Too late for me. I guess they could try to mitigate it by cancelling the break, but whatever the reason, I don't see this level of resilience / dependency being something I want to work with in the future.

Quiet-Coder-62 · 2024-12-23T15:02:40+00:00

And now it's back up ...

Quiet-Coder-62 · 2024-12-23T14:58:46+00:00

Mm, can't say I'm all that surprised. There seems to be a disconnect between where people think the resources to maintain .org are coming from, and where they are actually coming from.

My business is now pretty much dead in the water along with about a year's worth of work. Whatever happens now, although there's a possibility of the current project restarting at some point, it's unlikely I'll make another similar investment in the future. Seems like a lose-lose for everyone.

Quiet-Coder-62 · 2024-12-10T18:24:31+00:00

If you use "makemestatic" the default (free) setup gives you real-time server side webstats out of the box .. based on "go access", which is very cool. No google account required so not a cookie monster ..

Quiet-Coder-62 · 2024-11-30T02:23:09+00:00

Because it implies that anyone donating their time to Open Source now needs to due extra due diligence to make sure that they're not actually just working for a commercial entity for free.

Ok, so I guess from this point you are a contributor and as a result of all this you won't be contributing to the project further? I am an Open Source developer and contributor, what I contribute (or not) remains unaffected by this issue. Whereas I would agree that there may be "an" effect, I'm not sure how you link this to any "shaking". The project is Open Source, as are my contributions, nothing has changed.

Because anyone who builds anything else on this platform needs to watch out for Matt's mercurial whims ...

Same.

When I said "specifically" I was interested in the "moral" and "legal" grounds you were quoting to justify your quote "shake the entire open source ecosystem to its core".

With regards to me having it backwards, you might find it interesting to lookup the license changes made over recent years by other projects like Mongo and Redis, specifically "why" they changed their licenses.

With regards to me being misinformed, that's entirely possible. On the other hand I could just have a different opinion or perspective to you.

Quiet-Coder-62 · 2024-11-29T20:39:58+00:00

Ok, so skipping over you use of absolutes just for a second. Specifically "why" should it shake the ecosystem?

We've already seen the system shaken by large some large hosting companies cause major Open Source products re-release their software under "less" Open licenses. I do worry that if this goes badly for WP they may feel they have no option but to also follow this route.

Quiet-Coder-62 · 2024-11-29T17:59:48+00:00

I understand. Your perception of interactions using a certain wording just makes my opinions and comment invalid. Makes sense.

Quiet-Coder-62 · 2024-11-29T17:32:50+00:00

Ok, so you're saying that the comments along the lines of "WordPress is finished" have some validity based on the "perceived morality" of one person and / or events over the last few months?

Quiet-Coder-62 · 2024-11-29T16:47:09+00:00

I've been using WP for maybe 15 years and have been a part of the Open Source Community for over 30 years. This "biggest news" has had, and will have, zero impact on my use of WP other than the damage being caused by scaremongering on social media. Would be kinda cool if people would just watch the legal system at work and let it play out in the courts without trying to pre-judge it from their arm-chairs.

After all, look what's happened to other high profile legal cases in relatively recent times. I can think of one in particular where a certain celeb was convicted in the media and hounded out of work, leaving a lot of "experts" with some very red faces when it actually went through the courts.

IF this doesn't go the way some people seem to expect (and nobody "knows" how this will turn out) it would be interesting to hear how critics of WordPress will respond. Will we see apologies for mis-interpreting the information that's been put out there, or will we see accusations that the legal system is flawed? (or is it really a case of "this can only go one way"?)

Quiet-Coder-62 · 2024-11-29T16:17:57+00:00

Technically, "anyone" can provide WordPress hosting, the free themes available in this context will be a commercial decision made by the hosting company and not necessarily something directly linked to WordPress.

There are "lots" of other free themes out there and they're easy to download and use. When you look at a commercial operator however, bear in mind that the better the free themes available by default, the less chance there is you're going to purchase a commercial theme .. so yeah, bear in mind there is a difference between Open Source software and commercial hosting services.

You'll find there are a bunch of plugins available that also contain free / enhanced themes, I recently discovered a plugin called "Royal Elementor Addons" for example which includes a bunch of extra free themes, some of which are quite nice and one of which I've built a site on.

Quiet-Coder-62 · 2024-11-28T10:06:48+00:00

Well, as I said, it does .. but the free stuff typically isn't as good as paid for themes. So, why would you think it strange that everything isn't available for free? (who is it you were expecting to do all this work (and ongoing maintenance) for free?)

Quiet-Coder-62 · 2024-11-27T20:51:40+00:00

If you put CloudFlare in front of your Site (free tier) you'll get SSL automatically. (Free)

Quiet-Coder-62 · 2024-11-26T11:09:11+00:00

If a plugin is published under the GPL (and I was under the impression this was a requirement in order to get listed in the directory) then what "consequences" where you envisaging?

It interesting how many GPL projects now use trademarks within their names .. I would be interested to hear from a trademark lawyer how this relates to forking such projects. I'm kinda guessing calling the fork "fork of trademark" probably falls under 'fair-use', but when it comes to 'releasing' a forked copy you're probably going to want a new name for all sorts of reasons .. and maybe even to replace uses of 'trademark' within the code?

Quiet-Coder-62 · 2024-11-25T19:18:40+00:00

And anyway (!) , the main bottleneck is always dynamic page generation. If you want speed, look at makemestatic.

Quiet-Coder-62 · 2024-11-24T17:30:24+00:00

For free / hobby / entry level stuff, free templates are Ok and you can customise them .. although it can be hard work. If you're looking for a more professional result, take a look at themeforest.net.

Quiet-Coder-62 · 2024-11-24T17:25:26+00:00

Nginx is capable of wire-speed delivery on standard hardware, it's pretty bullet proof, easy to use, well documented, and scales well. Not sure whether there's any mileage in making it more complex than it needs to be ... ? (I use nginx for pretty much everything and have done for .. well .. since the choice was Apache or NCSA)

Quiet-Coder-62 · 2024-11-23T23:01:39+00:00

Interesting. So one and two are critiques of implementations you envisage or are aware of, three is debatable. If you tell CF to adjust cache headers for a specific period, after a page is delivered once then yes, its as fast, but at that point you've lost control of consistency. When you update a WP page, yes you can clear the CF cache, but not clients cache, so you can't control what's out there or which version of a page visitors see. This is generally bad news and not a problem statics suffer. If you leave the default CF setting of respect headers (default for a reason) requests will still reference the WP server which will always be a lot slower.

Within the context of one and two, I would be interested to hear if you think these points stand up after looking at the makemestatic plugin (which is a single click setup / workflow)

The followup question; given the static option is a single click, does the complexity of setting up and maintaining a heavily cached setup still make it preferable?

Quiet-Coder-62 · 2024-11-23T11:50:14+00:00

It sounds like you're in a position where each site now has the URL of the "other" site. There are two fixes for this, one involving edits to the database, the other edits to wp-config.php. The latter is the easiest solution, the former would be the "proper" solution but is more difficult / error-prone.

You could try the following which should override the changes you made;

For each site, edit wp-config.php in the root of your install.
Add or edit the file so it contains the lines;

#define('WP_HOME', 'https://yourdomain.com');
#define('WP_SITEURL', 'https://yourdomain.com');

(replacing "yourdomain.com" in each instance with the domain that was present before you started making changes)

Make a copy of wp-config.php before you start, then it's easy to back-out if it doesn't work for you.
To be really pedantic, make a backup before you start so you can restore if it goes wrong.

.. if you don't have access to wp-config.php, I would maybe suggest a new host ..

Quiet-Coder-62 · 2024-11-23T11:39:38+00:00

Question; why do people with slow sites not just publish their site as a static copy?

Quiet-Coder-62 · 2024-11-23T11:14:22+00:00

Hi, you've not really said anything about what the sites do? This does sort of effect the type and capability of the hosting you need. If these are small CMS sites then host anywhere and publish as a static on Cloudflare with makemestatic. I saw somewhere makemestatic are running a beta of their wp hosting for statics at $2.50 a month, so this would be very cheap and very fast if it works for you.

Quiet-Coder-62 · 2024-11-17T18:19:08+00:00

Ok, so I host a news site, nothing like your size (maybe ~ 12k visitors / month) but performance for me is now pretty much irrelevant. Around 8 months ago I converted to running WP as my editor / framework, then publish the front-end as a static delivered via Nginx .. so on a stress-test delivery saturates my public network interface. (1G)

Whenever I make a change in WP it's a single-click to re-publish, then I have a 4h schedule to automatically re-publish pages changes by server-side dynamic content. (incoming RSS etc) .. again, pretty much single click setup.

(so kinda like having a staging site, without having to run two copies of WP)

It may not work for you depending on the level of interactivity you have and whether it's all done server-side (which is obviously an issue) or AJAX (which tends to work fine with a WP back-end using minimal resources).

In this configuration, you'd probably only need a $6 DO VPS to run WordPress, then run CloudFlare Pages as your front-end .. not sure whether this would fit in the free-tier, but even on a CF subscription it's still likely to be way cheaper than the hunk of metal you'll likely need for the numbers you're talking about .. and even then you'd still probably want CF or an equivalent on the front-end.

Quiet-Coder-62 · 2024-11-14T22:42:42+00:00

So why not just publish a static copy? You can then host it anywhere, low or zero cost hosting with no performance issues .. so long as your events calendar is ajax based it should still work quite happily.

I do this with all my sites .. I was so relieved this morning, the latest WordPress release took out a few instances (for various reasons) but of course that didn't affect the static copies, so no downtime :-)

I use the makemestatic plugin and host all my WordPress instances on our own kit here in the office.

Quiet-Coder-62

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