See the full post here ➡️ https://ubuntu.com//blog/bare-metal-provisioning-of-hot-metal
Back a few months ago, we did a feature poll on our MAAS forum, and the most-requested new feature turned out to be “Recommission/rescan a machine after it has been deployed“. With the release of MAAS 3.1, we’ve added that feature. Here’s a sample of how it works.
Start with any old machine
In the Developer Advocate‘s lab, we have a stack of NUCs and a bunch of different laptops. For this exercise, we chose a gaming laptop because:
it’s fully loaded: Ryzen 7, 16GB RAM, a couple TB of space, etc., hooked up via Ethernet to a 1GB+ internet connection.it’s likely to be something a lot of developers would probably have nearby, making it easier to duplicate this experiment in odd moments.
We freshly installed and initialized MAAS 3.1 and LXD, just following the instructions — except that we didn’t disable DHCP/DNS on LXD, and we didn’t enable DHCP on MAAS. This configuration shows that MAAS doesn’t have to have DHCP enabled to manage machines that are already running — especially since it’s likely that a running machine already has a DHCP-assigned IP address, that it got from somewhere else.
Create and verify a LXD container
Using the command:
lxc launch ubuntu:20.04 u1
When the container is running, we can check it with:
A connected, running, independent LXD container
To demonstrate that the workload doesn’t get disturbed, we’ll do this:
A “top” session started just before enlisting this running
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