Dendrite Installation Guide

# Install EPEL repository if needed
sudo dnf install -y epel-release

# Install dendrite
sudo dnf install -y dendrite postgresql

# Enable and start service
sudo systemctl enable --now dendrite

# Configure firewall
sudo firewall-cmd --permanent --add-service=dendrite
sudo firewall-cmd --reload

# Verify installation
dendrite --version || systemctl status dendrite

# Update package index
sudo apt update

# Install dendrite
sudo apt install -y dendrite postgresql

# Enable and start service
sudo systemctl enable --now dendrite

# Configure firewall
sudo ufw allow 8008/8448

# Verify installation
dendrite --version || systemctl status dendrite

# Install dendrite
sudo pacman -S dendrite

# Enable and start service
sudo systemctl enable --now dendrite

# Verify installation
dendrite --version || systemctl status dendrite

# Install dendrite
apk add --no-cache dendrite

# Enable and start service
rc-update add dendrite default
rc-service dendrite start

# Verify installation
dendrite --version || rc-service dendrite status

# Install dendrite
sudo zypper install -y dendrite postgresql

# Enable and start service
sudo systemctl enable --now dendrite

# Configure firewall
sudo firewall-cmd --permanent --add-service=dendrite
sudo firewall-cmd --reload

# Verify installation
dendrite --version || systemctl status dendrite

# Using Homebrew
brew install dendrite

# Start service
brew services start dendrite

# Verify installation
dendrite --version

# Using pkg
pkg install dendrite

# Enable in rc.conf
echo 'dendrite_enable="YES"' >> /etc/rc.conf

# Start service
service dendrite start

# Verify installation
dendrite --version || service dendrite status

# Using Chocolatey
choco install dendrite

# Or using Scoop
scoop install dendrite

# Verify installation
dendrite --version

# Create configuration directory if needed
sudo mkdir -p /etc/dendrite

# Set up basic configuration
sudo tee /etc/dendrite/dendrite.conf << 'EOF'
# Dendrite Configuration
max_open_conns: 100
EOF

# Test configuration
sudo dendrite -t || sudo dendrite configtest

# Reload service
sudo systemctl reload dendrite

# Set appropriate permissions
sudo chown -R dendrite:dendrite /etc/dendrite
sudo chmod 750 /etc/dendrite

# Enable security features
# See security section for detailed hardening steps

# Enable service
sudo systemctl enable dendrite

# Start service
sudo systemctl start dendrite

# Stop service
sudo systemctl stop dendrite

# Restart service
sudo systemctl restart dendrite

# Reload configuration
sudo systemctl reload dendrite

# Check status
sudo systemctl status dendrite

# View logs
sudo journalctl -u dendrite -f

# Enable service
rc-update add dendrite default

# Start service
rc-service dendrite start

# Stop service
rc-service dendrite stop

# Restart service
rc-service dendrite restart

# Check status
rc-service dendrite status

# Enable in /etc/rc.conf
echo 'dendrite_enable="YES"' >> /etc/rc.conf

# Start service
service dendrite start

# Stop service
service dendrite stop

# Restart service
service dendrite restart

# Check status
service dendrite status

# Using Homebrew services
brew services start dendrite
brew services stop dendrite
brew services restart dendrite

# Check status
brew services list | grep dendrite

# Start service
net start dendrite

# Stop service
net stop dendrite

# Using PowerShell
Start-Service dendrite
Stop-Service dendrite
Restart-Service dendrite

# Check status
Get-Service dendrite

# Configure performance settings
cat >> /etc/dendrite/dendrite.conf << 'EOF'
max_open_conns: 100
EOF

# Apply system tuning
sudo sysctl -w net.core.somaxconn=65535
sudo sysctl -w net.ipv4.tcp_max_syn_backlog=65535

# Restart service
sudo systemctl restart dendrite

# Configure clustering (if supported)
# See official documentation for cluster setup

# Basic load balancing setup example
# Configure multiple instances on different ports

upstream dendrite_backend {
    server 127.0.0.1:8008/8448;
    server 127.0.0.1:{default_port}1 backup;
}

server {
    listen 80;
    server_name dendrite.example.com;
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    server_name dendrite.example.com;

    ssl_certificate /etc/ssl/certs/dendrite.example.com.crt;
    ssl_certificate_key /etc/ssl/private/dendrite.example.com.key;

    location / {
        proxy_pass http://dendrite_backend;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        
        # WebSocket support (if needed)
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

<VirtualHost *:80>
    ServerName dendrite.example.com
    Redirect permanent / https://dendrite.example.com/
</VirtualHost>

<VirtualHost *:443>
    ServerName dendrite.example.com
    
    SSLEngine on
    SSLCertificateFile /etc/ssl/certs/dendrite.example.com.crt
    SSLCertificateKeyFile /etc/ssl/private/dendrite.example.com.key
    
    ProxyRequests Off
    ProxyPreserveHost On
    
    ProxyPass / http://127.0.0.1:8008/8448/
    ProxyPassReverse / http://127.0.0.1:8008/8448/
    
    # WebSocket support (if needed)
    RewriteEngine on
    RewriteCond %{HTTP:Upgrade} websocket [NC]
    RewriteCond %{HTTP:Connection} upgrade [NC]
    RewriteRule ^/?(.*) "ws://127.0.0.1:8008/8448/$1" [P,L]
</VirtualHost>

frontend dendrite_frontend
    bind *:80
    bind *:443 ssl crt /etc/ssl/certs/dendrite.pem
    redirect scheme https if !{ ssl_fc }
    default_backend dendrite_backend

backend dendrite_backend
    balance roundrobin
    option httpchk GET /health
    server dendrite1 127.0.0.1:8008/8448 check
    server dendrite2 127.0.0.1:{default_port}1 check backup

# Set appropriate permissions
sudo chown -R dendrite:dendrite /etc/dendrite
sudo chmod 750 /etc/dendrite

# Configure firewall
sudo firewall-cmd --permanent --add-service=dendrite
sudo firewall-cmd --reload

# Enable SELinux policies (if applicable)
sudo setsebool -P httpd_can_network_connect on

# Configure fail2ban
sudo tee /etc/fail2ban/jail.d/dendrite.conf << 'EOF'
[dendrite]
enabled = true
port = 8008/8448
filter = dendrite
logpath = /var/log/dendrite/*.log
maxretry = 5
bantime = 3600
EOF

# Generate SSL certificates
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
    -keyout /etc/ssl/private/dendrite.key \
    -out /etc/ssl/certs/dendrite.crt

# Configure SSL in dendrite
# See official documentation for SSL configuration

# Create database and user
sudo -u postgres psql << EOF
CREATE DATABASE dendrite_db;
CREATE USER dendrite_user WITH ENCRYPTED PASSWORD 'secure_password';
GRANT ALL PRIVILEGES ON DATABASE dendrite_db TO dendrite_user;
EOF

# Configure dendrite to use PostgreSQL
# See official documentation for database configuration

# Create database and user
sudo mysql << EOF
CREATE DATABASE dendrite_db;
CREATE USER 'dendrite_user'@'localhost' IDENTIFIED BY 'secure_password';
GRANT ALL PRIVILEGES ON dendrite_db.* TO 'dendrite_user'@'localhost';
FLUSH PRIVILEGES;
EOF

# Kernel parameters
sudo tee -a /etc/sysctl.conf << EOF
net.core.somaxconn = 65535
net.ipv4.tcp_max_syn_backlog = 65535
net.ipv4.ip_local_port_range = 1024 65535
net.core.netdev_max_backlog = 5000
vm.swappiness = 10
EOF

sudo sysctl -p

# Dendrite specific tuning
max_open_conns: 100

# Configure system limits
sudo tee -a /etc/security/limits.conf << EOF
dendrite soft nofile 65535
dendrite hard nofile 65535
dendrite soft nproc 32768
dendrite hard nproc 32768
EOF

# prometheus.yml configuration
scrape_configs:
  - job_name: 'dendrite'
    static_configs:
      - targets: ['localhost:8008/8448']
    metrics_path: '/metrics'

# Basic health check script
#!/bin/bash
if systemctl is-active --quiet dendrite; then
    echo "Dendrite is running"
    exit 0
else
    echo "Dendrite is not running"
    exit 1
fi

# Configure log rotation
sudo tee /etc/logrotate.d/dendrite << 'EOF'
/var/log/dendrite/*.log {
    daily
    rotate 14
    compress
    delaycompress
    missingok
    notifempty
    create 0640 dendrite dendrite
    postrotate
        systemctl reload dendrite > /dev/null 2>&1 || true
    endscript
}
EOF

#!/bin/bash
# Dendrite backup script
BACKUP_DIR="/backup/dendrite"
DATE=$(date +%Y%m%d_%H%M%S)

mkdir -p "$BACKUP_DIR"

# Stop service (if required)
systemctl stop dendrite

# Backup configuration
tar -czf "$BACKUP_DIR/dendrite-config-$DATE.tar.gz" /etc/dendrite

# Backup data (adjust paths as needed)
tar -czf "$BACKUP_DIR/dendrite-data-$DATE.tar.gz" /var/lib/dendrite

# Start service
systemctl start dendrite

# Clean old backups (keep 30 days)
find "$BACKUP_DIR" -name "*.tar.gz" -mtime +30 -delete

echo "Backup completed: $BACKUP_DIR"

# Stop service
sudo systemctl stop dendrite

# Restore configuration
sudo tar -xzf /backup/dendrite/dendrite-config-*.tar.gz -C /

# Restore data
sudo tar -xzf /backup/dendrite/dendrite-data-*.tar.gz -C /

# Set permissions
sudo chown -R dendrite:dendrite /etc/dendrite
sudo chown -R dendrite:dendrite /var/lib/dendrite

# Start service
sudo systemctl start dendrite

# Check logs
sudo journalctl -u dendrite -n 100
sudo tail -f /var/log/dendrite/*.log

# Check configuration
sudo dendrite -t || sudo dendrite configtest

# Check permissions
ls -la /etc/dendrite
ls -la /var/lib/dendrite

# Check if service is listening
sudo ss -tlnp | grep 8008/8448
sudo netstat -tlnp | grep 8008/8448

# Check firewall
sudo firewall-cmd --list-all
sudo iptables -L -n

# Test connection
telnet localhost 8008/8448
nc -zv localhost 8008/8448

# Check resource usage
top -p $(pgrep dendrite)
htop -p $(pgrep dendrite)

# Check connections
ss -ant | grep :8008/8448 | wc -l

# Monitor I/O
iotop -p $(pgrep dendrite)

# Run in debug mode
sudo dendrite -d
# or
sudo dendrite debug

# Increase log verbosity
# Edit configuration to enable debug logging

version: '3.8'
services:
  dendrite:
    image: dendrite:latest
    container_name: dendrite
    ports:
      - "8008/8448:8008/8448"
    volumes:
      - ./config:/etc/dendrite
      - ./data:/var/lib/dendrite
    environment:
      - dendrite_CONFIG=/etc/dendrite/dendrite.conf
    restart: unless-stopped
    networks:
      - dendrite_net

networks:
  dendrite_net:
    driver: bridge

apiVersion: apps/v1
kind: Deployment
metadata:
  name: dendrite
spec:
  replicas: 3
  selector:
    matchLabels:
      app: dendrite
  template:
    metadata:
      labels:
        app: dendrite
    spec:
      containers:
      - name: dendrite
        image: dendrite:latest
        ports:
        - containerPort: 8008/8448
        volumeMounts:
        - name: config
          mountPath: /etc/dendrite
      volumes:
      - name: config
        configMap:
          name: dendrite-config
---
apiVersion: v1
kind: Service
metadata:
  name: dendrite
spec:
  selector:
    app: dendrite
  ports:
  - port: 8008/8448
    targetPort: 8008/8448
  type: LoadBalancer

---
- name: Install and configure Dendrite
  hosts: all
  become: yes
  tasks:
    - name: Install dendrite
      package:
        name: dendrite
        state: present
    
    - name: Configure dendrite
      template:
        src: dendrite.conf.j2
        dest: /etc/dendrite/dendrite.conf
        owner: dendrite
        group: dendrite
        mode: '0640'
      notify: restart dendrite
    
    - name: Start and enable dendrite
      systemd:
        name: dendrite
        state: started
        enabled: yes
  
  handlers:
    - name: restart dendrite
      systemd:
        name: dendrite
        state: restarted

# RHEL/CentOS/Rocky/AlmaLinux
sudo dnf update dendrite

# Debian/Ubuntu
sudo apt update && sudo apt upgrade dendrite

# Arch Linux
sudo pacman -Syu dendrite

# Alpine Linux
apk update && apk upgrade dendrite

# openSUSE
sudo zypper update dendrite

# FreeBSD
pkg update && pkg upgrade dendrite

# Always backup before updates
tar -czf /backup/dendrite-pre-update-$(date +%Y%m%d).tar.gz /etc/dendrite

# Restart after updates
sudo systemctl restart dendrite

# Clean logs
find /var/log/dendrite -name "*.log" -mtime +30 -delete

# Verify integrity
sudo dendrite --verify || sudo dendrite check

# Update databases (if applicable)
sudo dendrite-update-db

# Optimize performance
sudo dendrite-optimize

# Check for security updates
sudo dendrite --security-check