homelab-optimized/docs/services/individual/mastodon.md

Mastodon

🔴 Communication Service

📋 Service Overview

Property	Value
Service Name	mastodon
Host	Atlantis
Category	Communication
Difficulty	🔴
Docker Image	lscr.io/linuxserver/mastodon:latest
Compose File	Atlantis/mastodon.yml
Directory	Atlantis

🎯 Purpose

Mastodon is a free and open-source self-hosted social networking service.

🚀 Quick Start

Prerequisites

• Docker and Docker Compose installed
• Basic understanding of REDACTED_APP_PASSWORD
• Access to the host system (Atlantis)

Deployment

# Navigate to service directory
cd Atlantis

# Start the service
docker-compose up -d

# Check service status
docker-compose ps

# View logs
docker-compose logs -f mastodon

🔧 Configuration

Docker Compose Configuration

container_name: Mastodon
depends_on:
  mastodon-db:
    condition: service_started
  mastodon-redis:
    condition: service_healthy
environment:
- PUID=1026
- PGID=100
- TZ=America/Los_Angeles
- DEFAULT_LOCALE=en
- LOCAL_DOMAIN=mastodon.vish.gg
- WEB_DOMAIN=mastodon.vish.gg
- REDIS_HOST=mastodon-redis
- REDIS_PORT=6379
- DB_HOST=mastodon-db
- DB_USER=mastodonuser
- DB_NAME=mastodon
- DB_PASS="REDACTED_PASSWORD"
- DB_PORT=5432
- ES_ENABLED=false
- ES_HOST=es
- ES_PORT=9200
- ES_USER=elastic
- ES_PASS="REDACTED_PASSWORD"
- SECRET_KEY_BASE=REDACTED_SECRET_KEY_BASE
- OTP_SECRET=REDACTED_OTP_SECRET
- S3_ENABLED=false
hostname: mastodon
image: lscr.io/linuxserver/mastodon:latest
ports:
- 8562:443
restart: always
security_opt:
- no-new-privileges:true
volumes:
- /volume1/docker/mastodon/config:/config

Environment Variables

Variable	Value	Description
PUID	1026	User ID for file permissions
PGID	100	Group ID for file permissions
TZ	America/Los_Angeles	Timezone setting
DEFAULT_LOCALE	en	Configuration variable
LOCAL_DOMAIN	mastodon.vish.gg	Service domain name
WEB_DOMAIN	mastodon.vish.gg	Service domain name
REDIS_HOST	mastodon-redis	Configuration variable
REDIS_PORT	6379	Configuration variable
DB_HOST	mastodon-db	Configuration variable
DB_USER	mastodonuser	Configuration variable
DB_NAME	mastodon	Configuration variable
DB_PASS	mastodonpw	Configuration variable
DB_PORT	5432	Configuration variable
ES_ENABLED	false	Configuration variable
ES_HOST	es	Configuration variable
ES_PORT	9200	Configuration variable
ES_USER	elastic	Configuration variable
ES_PASS	elastic	Configuration variable
SECRET_KEY_BASE	***MASKED***	Application secret key
OTP_SECRET	***MASKED***	Configuration variable
S3_ENABLED	false	Configuration variable

Port Mappings

Host Port	Container Port	Protocol	Purpose
8562	443	TCP	HTTPS web interface

Volume Mappings

Host Path	Container Path	Type	Purpose
/volume1/docker/mastodon/config	/config	bind	Configuration files

🌐 Access Information

Web Interface

• HTTP: http://Atlantis:8562

Default Credentials

Create admin account via command line

🔒 Security Considerations

• ✅ Security options configured
• ⚠️ Consider running as non-root user

📊 Resource Requirements

No resource limits configured

Recommended Resources

• Minimum RAM: 512MB
• Recommended RAM: 1GB+
• CPU: 1 core minimum
• Storage: Varies by usage

Resource Monitoring

Monitor resource usage with:

docker stats

🔍 Health Monitoring

⚠️ No health check configured Consider adding a health check:

healthcheck:
  test: ["CMD", "curl", "-f", "http://localhost:PORT/health"]
  interval: 30s
  timeout: 10s
  retries: 3

Manual Health Checks

# Check container health
docker inspect --format='{{.State.Health.Status}}' CONTAINER_NAME

# View health check logs
docker inspect --format='{{range .State.Health.Log}}{{.Output}}{{end}}' CONTAINER_NAME

🚨 Troubleshooting

Common Issues

Service won't start

• Check Docker logs: docker-compose logs service-name
• Verify port availability: netstat -tulpn | grep PORT
• Check file permissions on mounted volumes

Can't access web interface

• Verify service is running: docker-compose ps
• Check firewall settings
• Confirm correct port mapping

Performance issues

• Monitor resource usage: docker stats
• Check available disk space: df -h
• Review service logs for errors

Useful Commands

# Check service status
docker-compose ps

# View real-time logs
docker-compose logs -f mastodon

# Restart service
docker-compose restart mastodon

# Update service
docker-compose pull mastodon
docker-compose up -d mastodon

# Access service shell
docker-compose exec mastodon /bin/bash
# or
docker-compose exec mastodon /bin/sh

📚 Additional Resources

• Official Documentation: Check the official docs for mastodon
• Docker Hub: lscr.io/linuxserver/mastodon:latest
• Community Forums: Search for community discussions and solutions
• GitHub Issues: Check the project's GitHub for known issues

🔗 Related Services

Other services in the communication category on Atlantis

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This documentation is auto-generated from the Docker Compose configuration. For the most up-to-date information, refer to the official documentation and the actual compose file.

Last Updated: 2025-11-17
Configuration Source: Atlantis/mastodon.yml