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https://github.com/johndoe6345789/docker-swarm-termina.git
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f8d2320236
Problem: CapRover's serviceUpdateOverride in captain-definition doesn't always apply automatically, causing "Docker socket NOT found" errors. Solution: Manual docker service update command to apply the mount. Changes: - Added CAPROVER_TROUBLESHOOTING.md with complete step-by-step fix - Manual docker service update command - Verification steps - Common issues and solutions - SELinux/AppArmor troubleshooting - Created fix-caprover-docker-mount.sh automated script - Finds service automatically - Applies mount - Verifies configuration - Shows service status - Enhanced backend/app.py diagnostics - Lists /var/run directory contents - Shows Docker-related files - Better error messages explaining the issue - Explicit note when mount is missing - Updated backend/requirements.txt - Docker SDK 7.0.0 -> 7.1.0 (fixes URL scheme error) - Updated CAPROVER_DEPLOYMENT.md - Prominent warning about serviceUpdateOverride limitation - New Step 4: Verify and Apply Docker Socket Mount - Quick fix command prominently displayed - Links to troubleshooting guide - Updated troubleshooting section with manual fix - Updated QUICKSTART.md - Warning after backend deployment instructions - Quick fix command for both deployment options - Links to troubleshooting guide This provides users with immediate solutions when encountering the "Cannot connect to Docker" error, which is now properly diagnosed and can be fixed with a single command. https://claude.ai/code/session_01NfGGGQ9Zn6ue7PRZpAoB2N
63 lines
2.0 KiB
Bash
63 lines
2.0 KiB
Bash
#!/bin/bash
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# Script to manually apply Docker socket mount to CapRover service
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# Run this on your CapRover server if serviceUpdateOverride doesn't work
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set -e
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# Service name - update this to match your CapRover app name
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SERVICE_NAME="${1:-srv-captain--terminalbackend}"
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echo "=== CapRover Docker Socket Mount Fix ==="
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echo "Service name: $SERVICE_NAME"
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echo ""
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# Check if service exists
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if ! docker service ls | grep -q "$SERVICE_NAME"; then
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echo "❌ Error: Service '$SERVICE_NAME' not found"
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echo ""
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echo "Available services:"
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docker service ls --format "{{.Name}}"
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echo ""
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echo "Usage: $0 <service-name>"
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echo "Example: $0 srv-captain--terminalbackend"
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exit 1
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fi
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echo "✓ Service found"
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echo ""
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# Show current service configuration
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echo "Current service mounts:"
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docker service inspect "$SERVICE_NAME" --format '{{json .Spec.TaskTemplate.ContainerSpec.Mounts}}' | python3 -m json.tool || echo "No mounts configured"
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echo ""
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# Update service with Docker socket mount
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echo "Applying Docker socket mount..."
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docker service update \
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--mount-add type=bind,source=/var/run/docker.sock,target=/var/run/docker.sock \
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"$SERVICE_NAME"
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echo ""
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echo "✓ Mount applied successfully"
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echo ""
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# Verify the update
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echo "Verifying updated configuration:"
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docker service inspect "$SERVICE_NAME" --format '{{json .Spec.TaskTemplate.ContainerSpec.Mounts}}' | python3 -m json.tool
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echo ""
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# Check service status
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echo "Service status:"
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docker service ps "$SERVICE_NAME" --no-trunc
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echo ""
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echo "=== Next Steps ==="
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echo "1. Wait for the service to restart (check logs in CapRover dashboard)"
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echo "2. Look for this in logs: '✓ Docker socket exists at /var/run/docker.sock'"
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echo "3. Test the API: curl https://your-backend-domain.com/api/health"
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echo ""
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echo "If you still see errors, check:"
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echo " - The service is running as root (not restricted by CapRover)"
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echo " - SELinux/AppArmor isn't blocking socket access"
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echo " - Docker socket exists on host: ls -la /var/run/docker.sock"
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