plex-playlist/docs/GITEA_ACTIONS_TROUBLESHOOTING.md

Gitea Actions Troubleshooting Guide

This document contains solutions to common issues with Gitea Actions CI/CD pipeline.

Critical Issue: Jobs Stuck in "Waiting" State Forever

Symptoms

• Workflows are created but jobs show "Waiting" indefinitely
• Runners are online and healthy
• No tasks appear in action_task database table
• Jobs get cancelled immediately (0-second duration)
• UI shows "Waiting" but database shows status 5 (cancelled)

Root Cause

Docker syntax in runs-on labels causes Gitea Actions to immediately cancel jobs.

Problem Syntax (BROKEN)

jobs:
  setup:
    runs-on: ubuntu-latest:docker://ubuntu:22.04
  backend:
    runs-on: python-latest:docker://python:3.14-slim
  frontend:
    runs-on: node-latest:docker://node:20-bookworm-slim

Solution Syntax (WORKING)

jobs:
  setup:
    runs-on: ubuntu-latest
  backend:
    runs-on: python-latest
  frontend:
    runs-on: node-latest

Why This Works

The runners are configured with Docker images in their labels:

GITEA_RUNNER_LABELS=ubuntu-latest:docker://ubuntu:22.04,node-latest:docker://node:20-bookworm-slim,python-latest:docker://python:3.14-slim

So jobs still run in the correct Docker containers, but Gitea can properly parse and dispatch them.

Diagnosis Steps

1. Check if new runs are created:

SELECT id, status, title FROM action_run ORDER BY id DESC LIMIT 3;

2. Check job status and duration:

SELECT arj.id, arj.job_id, arj.status, ar.created, ar.updated, (ar.updated - ar.created) as duration_seconds
FROM action_run_job arj
JOIN action_run ar ON arj.run_id = ar.id
WHERE ar.id = (SELECT MAX(id) FROM action_run);

3. Check if tasks are created:

SELECT * FROM action_task ORDER BY id DESC LIMIT 5;

4. Verify runners are online:

SELECT id, name, last_online, agent_labels FROM action_runner WHERE last_online > (EXTRACT(epoch FROM NOW()) - 300)::bigint;

Key Indicators

• Duration = 0 seconds → Immediate cancellation due to syntax issue
• Empty action_task table → Jobs never converted to executable tasks
• Status 5 jobs with Status 7 dependents → Setup job cancelled, others skipped

Test Procedure

Create a minimal test workflow to isolate issues:

# .gitea/workflows/test-simple.yml
name: Simple Test
on: push
jobs:
  test:
    name: Simple Test
    runs-on: ubuntu-latest
    steps:
      - name: Echo
        run: echo "Hello World"

If this works but your main workflow doesn't, the issue is likely syntax-related.

Other Common Issues

Cache/UI Synchronization Problems

If UI shows different status than database:

1. Restart Gitea: docker compose restart server
2. Clear browser cache
3. Check database vs UI status discrepancies

Stuck Runs from Previous Sessions

Clean up stuck runs:

-- Clear stuck pending jobs
UPDATE action_run_job SET status = 5 WHERE status IN (1, 2);
UPDATE action_run SET status = 5 WHERE status IN (1, 2);

Runner Registration Issues

If runners show "unregistered runner" errors:

1. Delete runner registrations: DELETE FROM action_runner;
2. Restart all runner containers
3. Let them auto-register with fresh state

Infrastructure Overview

Current Setup

• Gitea Server: Docker container with PostgreSQL backend
• Runners: 8 Raspberry Pi runners across 4 servers
  • pi-desktop: Pi 400 4GB (2 runners)
  • kankali: Pi with local Gitea (2 runners)
  • urtzul: Pi 4B 8GB (2 runners)
  • zhokq: Pi 4B 8GB (2 runners)

Runner Configuration

Each runner supports multiple Docker environments:

• ubuntu-latest → ubuntu:22.04
• python-latest → python:3.14-slim
• node-latest → node:20-bookworm-slim
• ubuntu-act → catthehacker/ubuntu:act-latest

Workflow Design

Multi-stage pipeline with artifact passing:

1. Setup: Checkout code, create artifacts
2. Parallel Setup: Backend (Python/uv) + Frontend (Node.js/Yarn)
3. Parallel Tests: Backend tests + Frontend tests

Lessons Learned

1. Gitea Actions syntax is stricter than GitHub Actions
2. Runner labels must match exactly - no Docker syntax in workflow files
3. Database debugging is essential - UI can show cached/incorrect status
4. Job cancellation happens immediately for syntax errors
5. Empty action_task table is the key indicator of dispatch failure

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Last updated: October 25, 2025 Issue resolved after extensive database-level debugging and syntax isolation