argo-cd Installation Guide Installation Guide

argo-cd is a free and open-source declarative GitOps CD for Kubernetes. Argo CD automates deployment of applications to Kubernetes clusters using Git repositories as the source of truth

Hardware Requirements:

CPU: 2+ cores recommended

RAM: 2GB minimum (4GB+ recommended)

Storage: 1GB for installation

Network: Git and Kubernetes access

Operating System:

Linux: Any modern distribution (RHEL, Debian, Ubuntu, CentOS, Fedora, Arch, Alpine, openSUSE)

macOS: 10.14+ (Mojave or newer)

Windows: Windows Server 2016+ or Windows 10

FreeBSD: 11.0+

Network Requirements:

Port 8080 (default argo-cd port)

Port 8083 for metrics

Dependencies:

See official documentation for specific requirements

System Access: root or sudo privileges required

This guide supports installation on:

RHEL 8/9 and derivatives (CentOS Stream, Rocky Linux, AlmaLinux)

Debian 11/12

Ubuntu 20.04/22.04/24.04 LTS

Arch Linux (rolling release)

Alpine Linux 3.18+

openSUSE Leap 15.5+ / Tumbleweed

SUSE Linux Enterprise Server (SLES) 15+

macOS 12+ (Monterey and later)

FreeBSD 13+

Windows 10/11/Server 2019+ (where applicable)

bash

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

# Install argo-cd
sudo dnf install -y argocd

# Enable and start service
sudo systemctl enable --now argocd-server

# Configure firewall
sudo firewall-cmd --permanent --add-port=8080/tcp
sudo firewall-cmd --reload

# Verify installation
argocd version

bash

# Update package index
sudo apt update

# Install argo-cd
sudo apt install -y argocd

# Enable and start service
sudo systemctl enable --now argocd-server

# Configure firewall
sudo ufw allow 8080

# Verify installation
argocd version

bash

# Install argo-cd
sudo pacman -S argocd

# Enable and start service
sudo systemctl enable --now argocd-server

# Verify installation
argocd version

bash

# Install argo-cd
apk add --no-cache argocd

# Enable and start service
rc-update add argocd-server default
rc-service argocd-server start

# Verify installation
argocd version

bash

# Install argo-cd
sudo zypper install -y argocd

# Enable and start service
sudo systemctl enable --now argocd-server

# Configure firewall
sudo firewall-cmd --permanent --add-port=8080/tcp
sudo firewall-cmd --reload

# Verify installation
argocd version

bash

# Using Homebrew
brew install argocd

# Start service
brew services start argocd

# Verify installation
argocd version

bash

# Using pkg
pkg install argocd

# Enable in rc.conf
echo 'argocd-server_enable="YES"' >> /etc/rc.conf

# Start service
service argocd-server start

# Verify installation
argocd version

bash

# Using Chocolatey
choco install argocd

# Or using Scoop
scoop install argocd

# Verify installation
argocd version

bash

# Create configuration directory
sudo mkdir -p /etc/argocd

# Set up basic configuration
# See official documentation for detailed configuration options

# Test configuration
argocd version

bash

# Enable service
sudo systemctl enable argocd-server

# Start service
sudo systemctl start argocd-server

# Stop service
sudo systemctl stop argocd-server

# Restart service
sudo systemctl restart argocd-server

# Check status
sudo systemctl status argocd-server

# View logs
sudo journalctl -u argocd-server -f

bash

# Enable service
rc-update add argocd-server default

# Start service
rc-service argocd-server start

# Stop service
rc-service argocd-server stop

# Restart service
rc-service argocd-server restart

# Check status
rc-service argocd-server status

bash

# Enable in /etc/rc.conf
echo 'argocd-server_enable="YES"' >> /etc/rc.conf

# Start service
service argocd-server start

# Stop service
service argocd-server stop

# Restart service
service argocd-server restart

# Check status
service argocd-server status

bash

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

# Check status
brew services list | grep argocd

powershell

# Start service
net start argocd-server

# Stop service
net stop argocd-server

# Using PowerShell
Start-Service argocd-server
Stop-Service argocd-server
Restart-Service argocd-server

# Check status
Get-Service argocd-server

See the official documentation for advanced configuration options.

nginx

upstream argocd_backend {
    server 127.0.0.1:8080;
}

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

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

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

    location / {
        proxy_pass http://argocd_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;
    }
}

apache

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

<VirtualHost *:443>
    ServerName argocd.example.com
    
    SSLEngine on
    SSLCertificateFile /etc/ssl/certs/argocd.example.com.crt
    SSLCertificateKeyFile /etc/ssl/private/argocd.example.com.key
    
    ProxyRequests Off
    ProxyPreserveHost On
    
    ProxyPass / http://127.0.0.1:8080/
    ProxyPassReverse / http://127.0.0.1:8080/
</VirtualHost>

haproxy

frontend argocd_frontend
    bind *:80
    bind *:443 ssl crt /etc/ssl/certs/argocd.pem
    redirect scheme https if !{ ssl_fc }
    default_backend argocd_backend

backend argocd_backend
    balance roundrobin
    server argocd1 127.0.0.1:8080 check

bash

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

# Configure firewall
sudo firewall-cmd --permanent --add-port=8080/tcp
sudo firewall-cmd --reload

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

See official documentation for database configuration requirements.

bash

# Basic system tuning
echo 'net.core.somaxconn = 65535' | sudo tee -a /etc/sysctl.conf
echo 'net.ipv4.tcp_max_syn_backlog = 65535' | sudo tee -a /etc/sysctl.conf
sudo sysctl -p

bash

# Check service status
sudo systemctl status argocd-server

# View logs
sudo journalctl -u argocd-server -f

# Monitor resource usage
top -p $(pgrep argocd)

bash

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

mkdir -p "$BACKUP_DIR"
tar -czf "$BACKUP_DIR/argocd-backup-$DATE.tar.gz" /etc/argocd /var/lib/argocd

echo "Backup completed: $BACKUP_DIR/argocd-backup-$DATE.tar.gz"

bash

# Stop service
sudo systemctl stop argocd-server

# Restore from backup
tar -xzf /backup/argocd/argocd-backup-*.tar.gz -C /

# Start service
sudo systemctl start argocd-server

1. Service won't start:

bash

# Check logs
sudo journalctl -u argocd-server -n 100
sudo tail -f /var/log/argocd/argocd.log

# Check configuration
argocd version

# Check permissions
ls -la /etc/argocd

2. Connection issues:

bash

# Check if service is listening
sudo ss -tlnp | grep 8080

# Test connectivity
telnet localhost 8080

# Check firewall
sudo firewall-cmd --list-all

3. Performance issues:

bash

# Check resource usage
top -p $(pgrep argocd)

# Check disk I/O
iotop -p $(pgrep argocd)

# Check connections
ss -an | grep 8080

yaml

version: '3.8'
services:
  argocd:
    image: argocd:latest
    ports:
      - "8080:8080"
    volumes:
      - ./config:/etc/argocd
      - ./data:/var/lib/argocd
    restart: unless-stopped

Maintenance

bash

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

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

# Arch Linux
sudo pacman -Syu argocd

# Alpine Linux
apk update && apk upgrade argocd

# openSUSE
sudo zypper update argocd

# FreeBSD
pkg update && pkg upgrade argocd

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

# Restart after updates
sudo systemctl restart argocd-server

Regular Maintenance

bash

# Log rotation
sudo logrotate -f /etc/logrotate.d/argocd

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

# Check disk usage
du -sh /var/lib/argocd

Official Documentation: https://docs.argocd.org/

GitHub Repository: https://github.com/argocd/argocd

Community Forum: https://forum.argocd.org/

Best Practices Guide: https://docs.argocd.org/best-practices

---

Note: This guide is part of the HowToMgr collection. Always refer to official documentation for the most up-to-date information.

1. Prerequisites

2. Supported Operating Systems

3. Installation

RHEL/CentOS/Rocky Linux/AlmaLinux

Debian/Ubuntu

Arch Linux

Alpine Linux

openSUSE/SLES

macOS

FreeBSD

Windows

Initial Configuration

Basic Configuration

5. Service Management

systemd (RHEL, Debian, Ubuntu, Arch, openSUSE)

OpenRC (Alpine Linux)

rc.d (FreeBSD)

launchd (macOS)

Windows Service Manager

Advanced Configuration

Reverse Proxy Setup

nginx Configuration

Apache Configuration

HAProxy Configuration

Security Configuration

Basic Security Setup

Database Setup

Performance Optimization

System Tuning

Monitoring

Basic Monitoring

9. Backup and Restore

Backup Script

Restore Procedure

6. Troubleshooting

Common Issues

Integration Examples

Docker Compose Example

Maintenance

Update Procedures

Regular Maintenance

Additional Resources

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