83 lines
2.5 KiB
Bash
83 lines
2.5 KiB
Bash
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#!/bin/bash
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# Quick DNS fix for WSL2 Docker connectivity issues
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# This is a simpler alternative that doesn't require root
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set -e
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echo "=========================================="
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echo "Quick Docker DNS Fix for WSL2"
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echo "=========================================="
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# Method 1: Fix WSL2 resolv.conf (requires sudo but is quick)
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echo ""
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echo "Method 1: Fixing WSL2 DNS configuration..."
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if [ "$EUID" -eq 0 ]; then
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# Running as root
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if [ -f /etc/resolv.conf ]; then
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cp /etc/resolv.conf /etc/resolv.conf.backup.$(date +%Y%m%d_%H%M%S)
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fi
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cat > /etc/resolv.conf <<EOF
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nameserver 8.8.8.8
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nameserver 8.8.4.4
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nameserver 1.1.1.1
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EOF
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echo "✓ Updated /etc/resolv.conf"
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else
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echo "⚠ Need sudo to update /etc/resolv.conf"
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echo "Run: sudo bash -c 'echo \"nameserver 8.8.8.8\" > /etc/resolv.conf'"
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fi
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# Method 2: Test DNS resolution
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echo ""
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echo "Method 2: Testing DNS resolution..."
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if nslookup registry-1.docker.io > /dev/null 2>&1 || host registry-1.docker.io > /dev/null 2>&1; then
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echo "✓ DNS resolution working!"
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else
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echo "⚠ DNS resolution still failing"
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echo "Try: ping 8.8.8.8 to test basic connectivity"
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fi
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# Method 3: Docker Desktop specific fix
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echo ""
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echo "Method 3: Docker Desktop Configuration"
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echo "If using Docker Desktop, configure DNS in Docker Desktop settings:"
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echo " 1. Open Docker Desktop"
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echo " 2. Go to Settings > Resources > Network"
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echo " 3. Or Settings > Docker Engine"
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echo " 4. Add DNS configuration:"
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echo ' {'
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echo ' "dns": ["8.8.8.8", "8.8.4.4", "1.1.1.1"]'
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echo ' }'
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echo " 5. Click 'Apply & Restart'"
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# Method 4: Alternative - use Docker's built-in DNS
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echo ""
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echo "Method 4: Testing Docker with explicit DNS..."
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if command -v docker &> /dev/null; then
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echo "Testing Docker connectivity..."
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# Try to pull a small image to test
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if docker pull alpine:latest > /dev/null 2>&1; then
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echo "✓ Docker connectivity working!"
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else
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echo "⚠ Docker pull failed. This might indicate network issues."
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echo ""
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echo "Alternative solutions:"
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echo "1. Restart Docker Desktop"
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echo "2. Restart WSL: wsl --shutdown (from Windows PowerShell)"
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echo "3. Check Windows firewall/antivirus"
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echo "4. Try using a VPN or different network"
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fi
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fi
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echo ""
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echo "=========================================="
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echo "Quick fix completed!"
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echo "=========================================="
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echo ""
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echo "If issues persist, try the full fix: sudo ./fix-docker-dns.sh"
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echo ""
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