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GitOps for omg.lol

2024-03-07

I've been active on omg.lol ("the best internet address that you’ve ever had") for several months now, and have really been enjoying my stay. omg.lol provides a number of delightfully-simple services, and it ties them together with a friendly API.

omg.lol homepage

omg.lol API documentation

Last month, I made use of the Pastebin API to power near-realtime weather information on my omg.lol profile page:

(Near) Realtime Weather on profile.lol

Last night, I crafted some quick GitHub Actions workflows to talk to the Now Page and Web endpoints and make updates to those pages with simple git commits.

Benefits

This brings a few benefits:

I can make changes without having to log in to the omg.lol dashboard
I can write updates with an editor like VS Code instead of a tiny frame in a web page
I'll preserve version-controlled histories of each page in case I break stuff
And it opens the doors to additional automation capabilities down the road

Process

I wound up with a pair of actions for each page.

Fetch Now Page

The first periodically fetches the latest version of the page from the API and commits it to the repo (in case it gets modified outside of git):

name: Fetch Now Page
on:
  schedule:
    - cron: "* */4 * * *"

jobs:
  fetch-now-page:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Fetch Now Page
        run: |
          curl --location --header "Authorization: Bearer ${{ secrets.OMG_TOKEN }}" \
            "https://api.omg.lol/address/${{ secrets.OMG_ADDR }}/now" | \
            jq -r .response.now.content > now.md
      - name: Commit Now Page
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          commit_message: 'fetch /now page'
          file_pattern: 'now.md'

This will run every four hours, and uses `git-auto-commit-action` to commit new versions of `now.md` as needed.

Git Auto Commit on GitHub Marketplace

Update Now Page

And the second workflow is used for sending a modified now page back to omg.lol:

name: Update Now Page
on:
  push:
    paths:
      - 'now.md'

jobs:
  update-now-page:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Update Now Page
        run: |
          request_body='{"listed": "1", "content": '"$(jq -Rsa . now.md)"'}'
          curl --location --request POST --header "Authorization: Bearer ${{ secrets.OMG_TOKEN }}" \
            "https://api.omg.lol/address/${{ secrets.OMG_ADDR }}/now" \
            --data "$request_body"

This one is triggered by any `git push` with a commit which modifies the `now.md` file.

Web Updates

I'm handling the web page updates in basically the same way, with the minor adjustment of needing to manage the web content, css, and custom head independently:

      - name: Fetch Web Page
        run: |
          response=$(curl --location --header "Authorization: Bearer ${{ secrets.OMG_TOKEN }}" \
            "https://api.omg.lol/address/${{ secrets.OMG_ADDR }}/web" | \
            jq -r .response)
          jq -r .content <<< $response > web.md
          jq -r .css <<< $response > web.css
          jq -r .head <<< $response > web_head.html

      - name: Update Web Page
        run: |
          request_body='{"publish": true, "content": '"$(jq -Rsa . web.md)"', "css": '"$(jq -Rsa . web.css)"', "head": '"$(jq -Rsa . web_head.html)"'}'
          curl --location --request POST --header "Authorization: Bearer ${{ secrets.OMG_TOKEN }}" \
            "https://api.omg.lol/address/${{ secrets.OMG_ADDR }}/web" \
            --data "$request_body"

The full code (as well as my weather hijinks) are in my lolz repo. Feel free to steal and improve upon it!

John's lolz on GitHub

And to see the fruits of my labors, check out:

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CC BY-SA