The basic procedure for OTA flashing was the same as flashing the globes, except that you hold down the button on the device for five seconds to put it into flash mode. That all worked brilliantly, until I appear to have fat fingered my wifi details in Tasmota — when I rebooted the device it never appeared on my network.
That would be much more annoying on the globes, but it turns out these smart plugs are really easy to open and that Tuya has documented the pin out of the controlling microprocessor. So, I ended up temporarily soldering some cables to the microprocessor to debug what had gone wrong. It should be noted that as a soldering person I make a great software engineer:
Once you’ve connected with a serial console, its pretty obvious who can’t be trusted to type their wifi password correctly:
Once I was back in that mode I could just use a laptop over wifi to re-enter the wifi password and I’m good to go. In hindsight I didn’t need the serial port if I could have powered the device and shorted that pin four times, but it sure was nice to be told what was happening on the serial console while poking around.
This site is hosted at Dreamhost, and for reasons I can’t explain right now isn’t accessible from large chunks of Australia. It seems to work fine from elsewhere though. Dreamhost certainly has an explaination — they allege in their emails that take 24 hours that you can’t reply to that its because wordpress is using too much RAM.
However, they don’t explain why that’s suddenly happened when its been previously fine for years, and they certainly don’t explain why it works from some places but not others and why other Dreamhost sites are also offline from the sites having issues.
Its time for a new hosting solution I think, although not bothering to have hosting might also be that solution.
This proposal was submitted for pyconau 2018. It wasn’t accepted, but given I’d put the effort into writing up the proposal I’ll post it here in case its useful some other time. The oblique references to OpensStack are because pycon had an “anonymous” review system in 2018, and I was avoiding saying things which directly identified me as the author.
So let me be clear here, I don’t think its a bad thing that Microsoft bought github. No one is forcing you to use their services, in fact they make it trivial to stop using them. So what’s the big deal.
Writing this down here because it took me a while to figure out for myself…
ONAP OOM deploys ONAP using Kubernetes, which effectively means Docker images at the moment. It needs to fetch a lot of Docker images, so there is a convenient script provided to pre-pull those images to make install faster and more reliable.
The script in the OOM codebase isn’t very flexible, so Jira issue OOM-655 was filed for a better script. The script was covered in code review 30169. Disappointingly, the code reviewer there doesn’t seem to have actually read the jira issue or the code before abandoning the patch — which isn’t very impressive.
So how do you get the nicer pre-pull script?
Its actually not too hard once you know the review ID. Just do this inside your OOM git clone:
$ git review -d 30169
You might be prompted for your gerrit details because the ONAP gerrit requires login. Once git review has run, you’ll be left sitting in a branch from when the review was uploaded that includes the script:
$ git branch
Now just rebase that to bring it in mine with master and get on with your life:
$ git rebase -i origin
Successfully rebased and updated refs/heads/review/james_forsyth/30169.
You’re welcome. I’d like to see the ONAP community take code reviews a bit more seriously, but ONAP seems super corporate (even compared to OpenStack), so I’m not surprised that they haven’t done a very good job here.
I’ve been running my personal blog on a very hacked version of blosxom for a hilariously long time, and its time to escape. I’ve therefore started converting all of the content to wordpress here, and will eventually redirect the old domain to here as well.
Why blogging when its so 2000? I’m increasingly disinterested in social media like Facebook and Twitter. I figure if I’m going to note something down that looks like it might be useful to others I’ll put it on ye olde blog instead.
I’m sure the conversion isn’t perfect, and I’ve decided not to migrate very old content that simply not interesting any more (linux kernel patches from 2004 for example). If you find a post which has converted badly, just comment on it and I’ll do something about it. I am very sure that pretty much no one will do that thing however.