167 lines
6.1 KiB
Markdown
167 lines
6.1 KiB
Markdown
# Daily Blackout Check
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Checks the official SAAPA planned-outage API and sends Persian notifications to
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an Eitaa chat when an outage is added, changed, cancelled, or restored.
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The checker is designed for an hourly Gitea Actions workflow. Its deduplication
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state is stored in `state/outages.json` and committed back to this repository.
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## Behavior
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- Queries each configured bill ID from today through five days ahead.
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- Uses Tehran time regardless of the runner container's timezone.
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- Sends all upcoming outages when starting with empty state.
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- Treats an existing outage number with changed time, address, date, reason, or
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planned status as an update.
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- Reports a future outage as cancelled only after two consecutive successful
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checks omit it.
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- Records a notification only after Eitaa accepts it. This favors delivery over
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perfect deduplication: a failed state push can cause a duplicate next hour.
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- Rejects malformed responses and snapshots larger than the configured safety
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limit without changing that bill's state.
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## Local setup
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Python 3.11 or newer is required. The Gitea runner image uses Debian's Python 3.11.
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```sh
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python -m venv .venv
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source .venv/bin/activate
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python -m pip install -e '.[test]'
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cp .env.example .env
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```
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Fill in the required values in `.env`, then preview the next run without sending
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messages or changing state:
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```sh
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python -m blackout_notifier check --dry-run
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```
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Run the live checker with:
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```sh
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python -m blackout_notifier check
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```
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## Configuration
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| Variable | Required | Default | Purpose |
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| --- | --- | --- | --- |
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| `BARGHEMAN_TOKEN` | Yes | — | SAAPA bearer token |
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| `EITAAYAR_TOKEN` | Yes | — | EitaaYar bot token |
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| `CHAT_ID` | Yes | — | Destination Eitaa chat |
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| `BILL_IDS` | Yes | — | Comma-separated decimal bill IDs |
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| `STATE_FILE` | No | `state/outages.json` | Durable notification state |
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| `LOOKAHEAD_DAYS` | No | `5` | Query horizon, from 1 to 30 days |
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| `REQUEST_TIMEOUT_SECONDS` | No | `15` | HTTP timeout, from 1 to 120 seconds |
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| `MAX_EVENTS_PER_BILL` | No | `25` | Response safety limit, from 1 to 100 |
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Shell and Gitea-provided variables take precedence over `.env`.
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## Gitea deployment
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This repository targets Gitea 1.25.x and a Docker-based runner advertising the
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`ubuntu-latest` label. The test and hourly workflows pull this private image from
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the Gitea Container Registry:
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```text
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mahgit.ir/meghdadfadaee/daily-blackout-check-runner:latest
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```
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It contains Node for the checkout action plus Python, Git, timezone data,
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application dependencies, pytest, and Ruff. Scheduled jobs therefore do not
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install Python or download Python packages.
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The Node base image is also mirrored in Gitea, so image builds do not contact
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Docker Hub:
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```text
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mahgit.ir/meghdadfadaee/daily-blackout-check-base:node-20-bookworm
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```
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### Registry credentials
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Create a Gitea personal access token for `MeghdadFadaee` with package permission
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set to **Read and Write**. Add these repository Actions secrets:
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| Secret | Value |
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| --- | --- |
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| `REGISTRY_USERNAME` | Gitea username that owns the package |
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| `REGISTRY_TOKEN` | Personal access token with package Read and Write permission |
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| `BARGHEMAN_TOKEN` | SAAPA bearer token |
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| `EITAAYAR_TOKEN` | EitaaYar bot token |
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| `CHAT_ID` | Destination chat ID |
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| `BILL_IDS` | Comma-separated bill IDs |
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The registry token is used to publish the image and as `container.credentials`
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when Gitea Runner pulls the private image before starting a job.
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### Runner configuration
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The image-build workflow needs access to the Docker daemon used by `act_runner`.
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In the runner's generated `config.yaml`, update the existing `container` section:
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```yaml
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container:
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force_pull: true
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valid_volumes:
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- /var/run/docker.sock
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```
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The runner container itself must already mount the same socket, as in the normal
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Docker-based `act_runner` setup. Restart the runner after changing its config.
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Docker socket access is equivalent to control of the Docker host. Use a trusted,
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preferably repository-level runner. The build workflow runs only for changes on
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`main` under `runner-image/` or its own workflow file; it never runs for pull
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requests.
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### Image publishing flow
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The **Build runner image** workflow:
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1. Starts in the Gitea-hosted `daily-blackout-check-base:node-20-bookworm`
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image and installs the Docker client.
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2. Builds using only `runner-image/` as context, so `.env` and outage state are
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never included.
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3. Runs import, pytest, and Ruff smoke checks inside the candidate image.
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4. Pushes an immutable tag using the first 12 characters of the Git commit.
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5. Updates `latest` only after the candidate passes verification.
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It runs automatically when `runner-image/**` changes on `main` and can also be
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started manually. Image builds require Debian mirrors, PyPI, Gitea, and access
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to the Docker socket. Normal test and hourly runs only need Gitea, `gitea.com`,
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SAAPA, and EitaaYar. The mirrored Node image is intentionally static; refresh it
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from the upstream `node:20-bookworm` image when adopting Node security updates.
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Deployment order:
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1. Enable Packages and Actions for the repository/owner.
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2. Configure the runner socket permission and restart it.
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3. Add all repository Actions secrets listed above.
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4. Run **Build runner image** manually and confirm both registry tags appear.
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5. Run **Test blackout notifier** manually.
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6. Run **Hourly blackout check** manually once and inspect the notification and
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resulting state commit.
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7. Leave the `@hourly` schedule enabled.
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The workflow uses fully qualified `https://gitea.com/actions/...` actions rather
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than resolving actions through GitHub. Gitea 1.25 ignores workflow `permissions`
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and `concurrency`, so the notifier workflow deliberately does not rely on them.
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Its checkout credential must retain the default ability to push to the current
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repository. Scheduled jobs should not be manually overlapped; in the rare event
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of a push race, the job fails and unsaved notices may be repeated on the next run.
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## Development
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```sh
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ruff check .
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pytest
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```
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Tests mock both external services and never send real messages.
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Historical state from the previous implementation is retained at
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`archive/blackouts-1404.json` for reference only and is not imported.
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