Technology Comparison

Docker vs Virtual Machines - Which Should You Use?

Comparing Docker and Virtual Machines for your next project. Honest analysis of performance, ecosystem, and suitability for Australian businesses.

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Our Development Capabilities

Custom-built solutions for your specific business needs.

Cloud-Native Architecture

Applications designed for scalability and reliability on modern cloud infrastructure. Auto-scaling, CDN, and edge deployment.

Custom Web Applications

Bespoke web applications built from the ground up to solve your specific business problems. No off-the-shelf compromises.

Performance Engineering

Server-side rendering, code splitting, and caching strategies that deliver sub-second load times at scale.

Headless CMS Integration

Decouple your content management from your frontend for flexibility, performance, and better developer experience.

CI/CD and DevOps

Automated testing, continuous integration, and deployment pipelines that keep your application reliable and easy to update.

Quick Comparison

Side-by-side comparison to help you decide.

Criterion	Docker	Virtual Machines
Startup time	Milliseconds to seconds - shared kernel; no OS boot required	Minutes - full OS boot, hardware emulation or hypervisor overhead
Resource density	High - dozens of containers on hardware that runs 2-3 VMs	Low - each VM requires dedicated OS memory and CPU overhead
Isolation level	Process-level isolation - shared kernel; container escape is a known attack surface	Hardware-level isolation - VM escape is extremely difficult
Portability	High - Dockerfile is portable across any Docker-capable host	Moderate - VM images are large and hypervisor-dependent (VMware, KVM, Hyper-V)
Persistent storage	Volumes required; containers are ephemeral by design	Persistent disk is native; stateful workloads are straightforward
Windows workloads	Linux containers are native; Windows containers are possible but less common	Windows VMs are native on Hyper-V and VMware - full compatibility

Our Verdict

Choose Docker containers for application workloads - web servers, APIs, microservices, background workers. The density, portability, and deployment speed advantages over VMs are decisive for most application tiers. VMs remain the right choice for workloads that require full OS isolation (running untrusted code, strong multi-tenancy security requirements), legacy applications that cannot be containerised, or Windows applications where Linux containers are not an option. In practice, most production systems use both: containers running inside VMs (EC2 instances, Azure VMs) managed by Kubernetes or ECS.

Choose Docker when:

✓ Deploying web applications, APIs, or microservices - containers are the modern standard
✓ Local development environments via Docker Compose - consistent across all developer machines
✓ CI/CD pipelines where fast image builds and ephemeral test environments are needed
✓ Kubernetes workloads - all K8s pods run containers

Choose Virtual Machines when:

✓ Running untrusted or multi-tenant compute where hardware-level isolation is a security requirement
✓ Legacy applications that cannot be containerised without significant refactoring
✓ Windows Server workloads that require full Windows OS compatibility
✓ Database servers where VM-level disk persistence is simpler to reason about

Frequently Asked Questions

Our core stack is Next.js, React, and TypeScript, but we select technology based on your project needs. We have experience with Python, Node.js, PostgreSQL, and all major cloud platforms.

Timelines depend on scope, but most projects go from kickoff to launch in 4-8 weeks. A working prototype is ready within the first 2 weeks for early feedback.

Pricing depends on what you need - a simple web app costs less than a complex system with multiple integrations. We provide fixed-price proposals after a free discovery session.

We specialise in integration. Whether it is your CRM, accounting software, or industry-specific tools, we connect your new application to your existing systems.

Yes, our team has experience with both Docker and Virtual Machines. We choose the right tool based on your project needs and recommend accordingly during our free assessment.

It depends on your project requirements. Docker and Virtual Machines each have strengths. Our detailed comparison above covers the trade-offs to help you decide.

Yes. Every project includes 3 months of post-launch support covering bug fixes, performance tuning, and minor feature additions. We also offer ongoing retainer plans.