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The k3s system-upgrade controller is a fantastic tool for upgrading k3s automatically. It has done a fantastic job for me every time I’ve used it. Today I ran it on a cluster that needed to upgrade several minors and I learned that the controller does not pick up on changes to the channel url if you change from minor to minor.

The solution I came up with was to name the plan with the version it supports. Then on each patch upgrade, change both the plan name and the channel. I use gitops with argocd, it automcatically cleaned up old plans, created new plans, and the system-upgrade-controller picked up the plan and started applying immediately.

# Server plan
apiVersion: upgrade.cattle.io/v1
kind: Plan
metadata:
  name: server-plan-v1.33 # <- This is important if you want to change the channel name
  namespace: system-upgrade
spec:
  concurrency: 1
  cordon: true
  nodeSelector:
    matchExpressions:
    - key: node-role.kubernetes.io/control-plane
      operator: In
      values:
      - "true"
  serviceAccountName: system-upgrade
  upgrade:
    image: rancher/k3s-upgrade
  channel: https://update.k3s.io/v1-release/channels/v1.33
---
# Agent plan
apiVersion: upgrade.cattle.io/v1
kind: Plan
metadata:
  name: agent-plan-v1.33 # <- This is important if you want to change the channel name
  namespace: system-upgrade
spec:
  concurrency: 1
  cordon: true
  nodeSelector:
    matchExpressions:
    - key: node-role.kubernetes.io/control-plane
      operator: DoesNotExist
  prepare:
    args:
    - prepare
    - server-plan
    image: rancher/k3s-upgrade
  serviceAccountName: system-upgrade
  upgrade:
    image: rancher/k3s-upgrade
  channel: https://update.k3s.io/v1-release/channels/v1.33

I’d love to see a better way if you have a way to upgrade through minors, or manually control the minor of your cluster let me know.

setting COLUMNS env var to a number greater than 0 will make the terminal resize to that number of columns.

COLUMNS=80 uvx --from rich-cli rich myscript.py

I discovered this when I was trying to make a low effort readme generated from the code, but did not depend on the size of terminal it was ran on.

# justfile
readme:
    echo "# Workspaces" > README.md
    echo "" >> README.md
    echo '``` bash' >> README.md
    COLUMNS=80 ./workspaces.py --help >> README.md
    echo '```' >> README.md

The tea command for gitea (used by forgejo) has a flag for login. With gitea you can have multiple accounts logged in. When you try to run a command such as repo create it will prompt you which login to use, but I learned that you can bake it in to all of them with --login <login-name>

❯ tea repo create --name deleteme --description 'for example'
┃ NOTE: no gitea login detected, whether falling back to login 'git.waylonwalker.com'?

tea repo create --name deleteme --description 'for example' --login git.wayl.one

I found an interesting side effect of manually running my script to generate [[ stars ]] posts is that you get notified when one gets renamed. Today I noticed that Ned Batchelder created a coveragepy org.

Today I learned how to use AliasChoices with pydantic settings to setup common aliases for the same field. I’m bad about remembering these things, and hate looking up the docs. I like things to be intuitive and just do the thing I want it to do. Especially when they get configured through something like yaml and do not have a direct lsp look up right from my editor. I figured out how to support what might be common aliases for a storage directory. These can be set up as environment variables and used by config.

from pathlib import Path

from pydantic import Field
from pydantic import AliasChoices
from pydantic_settings import BaseSettings

class Settings(BaseSettings):
    storage_dir: Path | None = Field(
        default=None,
        validation_alias=AliasChoices(
            "STORAGE_DIR", "STORAGE_DIRECTORY", "STORAGE_PATH", "STORAGE_PATHNAME",
            "DROPPER_STORAGE_DIR", "DROPPER_STORAGE_DIRECTORY", "DROPPER_STORAGE_PATH", "DROPPER_STORAGE_PATHNAME",
        ),
        description="Directory for stored files",
    )