Docker and Virtualisation on NAS — Australian Guide

A modern NAS is not just a file server. It is a full home server platform capable of running Docker containers and, in some cases, complete virtual machines. Docker support transforms a NAS from passive storage into an active computing platform that can run Plex, Home Assistant, Pi-hole, Nextcloud, Paperless-ngx, and dozens of other self-hosted applications. All on a quiet, low-power device that sits in a cupboard drawing 15-30 watts. For Australian buyers, the critical factor is choosing a NAS with an x86 processor (Intel Celeron, Intel N-series, or AMD Ryzen), because ARM-based models do not support Docker. This guide covers which brands and models support containers and VMs, what you can realistically run, and what hardware specs you need to avoid frustration.

What Are Docker Containers and Why Run Them on a NAS?

Docker containers are lightweight, isolated application packages that include everything an application needs to run. The code, libraries, and dependencies. Without requiring a full operating system. Think of a container as a self-contained app that runs alongside your NAS operating system without interfering with it. If something goes wrong inside a container, you delete it and spin up a fresh one in seconds. Your NAS data and other containers remain untouched.

This is fundamentally different from installing software directly onto a system. Containers are disposable, portable, and reproducible. If you configure a Plex container on your NAS and the NAS fails, you can deploy the exact same container on a replacement NAS in minutes. Provided you backed up the container's configuration data. For a broader look at choosing the right NAS for your situation, see our Best NAS Australia 2026 guide.

For Australian home users and small businesses, running containers on a NAS makes particular sense. A NAS is already on 24/7, already connected to your network, and already designed for low-power, quiet operation. Rather than running a separate Raspberry Pi for Home Assistant, a separate PC for Plex, and yet another device for your ad-blocker, you consolidate everything onto one device. Less hardware, less power consumption (relevant with Australian electricity costs), less network complexity, and one device to maintain. Our NAS Power Consumption Guide breaks down exactly what these devices cost to run in Australia. For NAS models purpose-built for this use case, see Best NAS for Home Lab Australia.

Containers vs Virtual Machines. What Is the Difference?

Containers and virtual machines (VMs) both let you run isolated applications, but they work differently and suit different use cases. A container shares the host NAS operating system's kernel and runs a single application in an isolated environment. It starts in seconds, uses minimal RAM (often 50-256MB per container), and has negligible performance overhead. A VM, by contrast, runs a complete guest operating system. Windows, Ubuntu, or another Linux distribution. With its own virtual hardware. VMs take minutes to boot, require dedicated RAM allocation (2-8GB per VM), and consume significantly more CPU resources.

For most NAS use cases. Media servers, home automation, network utilities, document management. Containers are the right choice. They are lighter, faster, and your NAS hardware can run many more containers than VMs simultaneously. VMs are useful when you specifically need a full desktop environment (running Windows applications remotely), need to test software in a sandboxed OS, or require a completely isolated network environment for security purposes.

Among major NAS brands, only QNAP offers both container support (Container Station) and full VM support (Virtualisation Station) as integrated features of their operating system. Synology discontinued its Virtual Machine Manager for most consumer models and now focuses entirely on containers through Container Manager. If you need VM capability alongside Docker, QNAP is the only mainstream NAS option. See our QNAP NAS Australia guide for model recommendations.

Docker and VM Support by NAS Brand

Not all NAS devices support Docker, and support varies significantly between brands and even between models within the same brand. The universal requirement is an x86 processor. Intel Celeron, Intel N-series (N5105, N100), or AMD Ryzen. ARM processors (Realtek RTD1296, RTD1619B) lack the instruction set needed for Docker's container runtime. Here is how each brand handles containerisation and virtualisation in 2026.

Synology. Container Manager (Formerly Docker)

Synology's Docker implementation is called Container Manager (renamed from "Docker" in DSM 7.2). It is arguably the most polished container management interface in the NAS space. Clean, intuitive, and well-integrated with DSM. You can pull images from Docker Hub, configure containers with a GUI, manage Docker Compose projects, and monitor resource usage all from the web interface.

The catch: Container Manager is only available on Plus-series models with x86 processors. The current Docker-capable lineup includes the DS225+ ($585 at Mwave), DS425+ ($899 at Mwave), DS725+ ($869 at Mwave), DS925+ ($1,029 at Mwave), and DS1525+ ($1,285 at Mwave). The non-Plus models. DS124 (~$1199), DS223 (~$1233), DS423 (~$1199). Use ARM processors and cannot run Docker at all. This is the single biggest buying mistake Australians make with Synology: purchasing a cheaper non-Plus model expecting to run containers, then discovering it is not supported. For a deep dive into the Plus-series options, see our Synology NAS Australia guide and our detailed DS925+ Review.

Synology's Container Manager ships with 2GB RAM on the DS225+ and DS425+, which is technically enough to run a few lightweight containers but will feel constrained if you run more than three or four. The DS925+ and DS1525+ ship with 4GB and support user-upgradeable RAM. The DS925+ can be upgraded to 16GB, which is the sweet spot for running five to ten containers comfortably.

QNAP. Container Station and Virtualisation Station

QNAP takes a different approach by offering both Container Station (Docker/LXC containers) and Virtualisation Station (full VMs) as separate applications within QTS. This makes QNAP the only major NAS brand where you can run Docker containers alongside full Windows or Linux virtual machines on the same device. If you need both containers and VMs, QNAP is the clear choice. See our QNAP NAS Australia guide for pricing and model recommendations. For a buying guide focused specifically on NAS models suited to virtual machines and container workloads, see Best NAS for Virtualisation Australia.

Container Station supports Docker Hub image pulling, Docker Compose, and LXC containers. The interface is functional and well-documented, though slightly less polished than Synology's Container Manager. Virtualisation Station supports running Windows 10/11, Ubuntu, and other operating systems as full VMs with pass-through USB and GPU support on select models.

Docker-capable QNAP models include the TS-264 ($819 at PLE), TS-462 ($919 at PLE), TS-464 ($1,099 at PLE), TS-473A ($1,489 at PLE), TS-664 ($1,549 at PLE), and TS-673A ($1,699 at PLE). The ARM-based models. TS-133 ($259), TS-233 (~$1599), and TS-216G (~$1599). Do not support Docker. QNAP's x86 models typically ship with 4-8GB RAM and most support user-upgradeable memory up to 16-32GB, giving you more headroom for VMs and containers than Synology's entry-level Plus models.

Asustor. Portainer via ADM

Asustor supports Docker through Portainer, a third-party Docker management GUI that runs as an ADM (Asustor Data Master) package. Portainer is a well-respected open-source tool used widely in the self-hosting community, so the experience is solid. But it is not as tightly integrated into the NAS operating system as Synology or QNAP's built-in solutions.

Docker support is available on Asustor's x86 models: the Nimbustor series (AS5402T at $789 from Mwave, AS5404T at $879), Lockerstor Gen2 series (AS6702T at $781, AS6804T at $1,013), and Flashstor series. The budget Drivestor models (AS1104T, AS3302T V2, AS3304T V2) use ARM processors and do not support Docker. For a complete breakdown of the Asustor lineup, see our Asustor NAS Australia guide.

Asustor's x86 models ship with 4GB RAM and use the Intel Celeron N5105 or AMD Ryzen V3C14, both of which handle Docker containers well. The N5105-based Nimbustor AS5404T ($879) is one of the more cost-effective ways to get into Docker on a NAS in Australia. It includes 4GB RAM, four bays, and 2.5GbE networking.

UGREEN. Docker on UGOS

UGREEN entered the NAS market in 2024 with their NASync range and their custom UGOS operating system supports Docker on x86 models. The Docker implementation is functional but still maturing. UGOS is a much younger operating system than DSM or QTS, and the app ecosystem, community support, and documentation are not yet at the same level. Docker works, but you should expect a more hands-on experience compared to Synology or QNAP.

UGREEN does not yet have an official Australian distributor, which means warranty claims currently go through international channels. Australian Consumer Law protections may be difficult to enforce on purchases made through Amazon AU or international sellers. This is expected to change in 2026 as UGREEN establishes local distribution, but until then, factor in the support risk. If you want Docker on a NAS with strong local support, Synology, QNAP, or Asustor are safer choices for Australian buyers right now.

TerraMaster. TOS Docker Support

TerraMaster's TOS operating system supports Docker on its x86 models, including the F2-425 ($459 at Scorptec), F2-425 Plus ($599), F4-425 ($659), F4-424 Pro ($1,099), and F6-424 Max ($1,699). TerraMaster offers some of the cheapest x86 NAS hardware in Australia. The F2-425 at~$899 with an Intel Celeron N5095 is the lowest-cost Docker-capable NAS on the market. However, TOS is less mature than DSM or QTS, the app ecosystem is smaller, and community resources are limited compared to Synology and QNAP. TerraMaster is distributed by DSTech in Australia, which means limited retail presence. Scorptec is the main retailer stocking the range.

What Can You Actually Run? Popular Containers for NAS

The beauty of Docker is access to thousands of pre-built container images. Here are the most popular and practical containers for a NAS, particularly relevant for Australian users. All of these run on Synology Container Manager, QNAP Container Station, and Asustor Portainer. For a curated guide to the most useful NAS applications across categories. Not just Docker. See Best NAS Apps and Packages.

Media and Entertainment

Plex Media Server. The gold standard for personal media streaming. Organises your movies, TV shows, and music with metadata, artwork, and remote access. Runs well on any x86 NAS with hardware transcoding support (Intel Quick Sync). If media serving is your primary use case, see our dedicated Best NAS for Plex Australia guide. Plex is available as a native Synology and QNAP package, but running it as a container gives you more control over updates and configuration.

Jellyfin. The open-source alternative to Plex. Completely free, no subscription required, no account creation, no phoning home. Feature set is 90% of Plex and improving rapidly. If you object to Plex's increasing push toward ad-supported content and subscription features, Jellyfin is the answer. Runs lighter than Plex and supports hardware transcoding on Intel NAS devices.

Home Automation and Networking

Home Assistant. The most powerful open-source home automation platform. Controls smart lights, sensors, cameras, climate systems, and thousands of other devices from a unified dashboard. Running Home Assistant as a container on your NAS eliminates the need for a separate Raspberry Pi or Home Assistant Yellow device. Note that some advanced Home Assistant features (add-ons, Supervisor) require the full Home Assistant OS rather than a container. For those, you would need to run Home Assistant OS inside a QNAP VM.

Pi-hole. A network-wide ad blocker that acts as your DNS server. Every device on your network. Phones, tablets, smart TVs, IoT devices. Gets ad blocking without installing anything on the device itself. Uses virtually no resources (64MB RAM is enough) and dramatically improves browsing experience across your entire household. Configure your router to use your NAS's IP as the DNS server and you are done.

Tailscale. A mesh VPN that lets you access your NAS and entire home network remotely, even behind CGNAT (which affects many Australian NBN connections). Running Tailscale as a container or native package on your NAS means you can access your files, Plex library, and other services from anywhere. This is especially important for Australians on NBN connections where CGNAT blocks traditional port forwarding. Our Remote Access VPN Guide covers setup in detail.

Productivity and Security

Nextcloud. A self-hosted cloud platform that replaces Google Drive, Dropbox, and iCloud for file sync, calendar, contacts, and document editing. Your data stays on your NAS, under your control, with no monthly subscription. Particularly relevant for Australians concerned about data sovereignty. Your files never leave your network unless you explicitly share them. Pairs well with Tailscale for secure remote access. For NAS-specific Nextcloud setup advice and hardware recommendations, see Best NAS for Nextcloud Australia.

Paperless-ngx. A document management system that scans, OCRs, and organises your paperwork. Scan a receipt, bill, or letter and Paperless-ngx automatically categorises it, makes it searchable, and stores it on your NAS. Eliminates paper filing cabinets and makes tax time significantly easier. Uses moderate resources (512MB-1GB RAM).

Vaultwarden. A self-hosted Bitwarden-compatible password manager. Instead of trusting a cloud service with your passwords, you host them on your NAS. Works with all Bitwarden clients (browser extensions, mobile apps, desktop apps). Uses minimal resources and is one of the lightest containers you can run. For security hardening of your NAS itself, see our NAS Security Guide.

Minimum Hardware Specs for Docker on a NAS

Docker itself is lightweight, but running multiple containers simultaneously adds up. Here are realistic hardware requirements based on what you plan to run, not the theoretical minimums vendors list on spec sheets.

RAM is the most important factor. A CPU that handles NAS duties will handle Docker containers without issue. Even the Intel Celeron J4125 can run ten containers comfortably. But RAM is where things get tight. Each container consumes 50MB to 1GB+ depending on the application. Plex uses 200-500MB, Home Assistant around 500MB, Nextcloud 300-500MB, and Pi-hole just 64MB. Add those up and you can see why 2GB is not enough for serious container use.

If you are buying a NAS specifically to run Docker containers, prioritise RAM-upgradeable models. The Synology DS925+ (4GB, upgradeable to 16GB, $1,029 at Mwave) and QNAP TS-464 (8GB, upgradeable to 16GB, $1,099 at PLE) are the two best mid-range options for Australian buyers who want headroom to grow their container setup. For networking considerations, our NAS Networking Guide covers 2.5GbE and 10GbE options in detail.

Getting Started with Docker on Your NAS

The setup process varies by brand, but the general workflow is the same: install the container management application, find a container image on Docker Hub, configure it with the right volume mounts and network settings, and start it. Here is a quick overview for each platform.

Synology Container Manager Setup

1. Open Package Center in DSM and install Container Manager. It appears automatically on all Plus-series models.

2. Open Container Manager. Use the Registry tab to search Docker Hub for images. For example, search "linuxserver/plex" to find the popular LinuxServer.io Plex image.

3. Download the image, then create a container from it. Configure port mappings (which ports on the NAS map to which ports inside the container), volume mounts (which NAS folders the container can access), and environment variables (configuration settings specific to the application).

4. For more complex setups, use the Project tab to create Docker Compose configurations. Compose lets you define multiple containers and their relationships in a single YAML file. Essential for applications like Nextcloud that require both an application container and a database container.

QNAP Container Station Setup

1. Open App Center in QTS and install Container Station.

2. Container Station opens with a dashboard showing system resources. Click Create to pull an image from Docker Hub or import a local image.

3. Configure the container with network settings, volume mounts, and resource limits. QNAP's Container Station also supports LXC containers for lighter-weight Linux environments.

4. For VMs, install Virtualisation Station separately from App Center. Upload an ISO file (Windows, Ubuntu, etc.) and create a VM with allocated CPU cores, RAM, and virtual disk space. QNAP's VM support includes VirtIO drivers for near-native performance.

Docker Best Practices for NAS Users

Running Docker on a NAS is straightforward, but there are a few NAS-specific considerations that differ from running Docker on a regular server or PC.

Always use volume mounts for persistent data. Container storage is ephemeral. If you delete or update a container, anything stored inside it is lost. Map important data directories to folders on your NAS so that configuration, databases, and user data persist across container updates. For Plex, this means mounting your media library and the Plex configuration directory. For Paperless-ngx, this means mounting the documents and database directories.

Use Docker Compose instead of the GUI for complex stacks. While the GUI is convenient for single containers, Docker Compose files are portable, version-controllable, and reproducible. If your NAS fails, you can redeploy your entire container stack on a new NAS by copying the Compose file and your persistent data. Store your Compose files on the NAS itself as part of your backup strategy.

Monitor resource usage. NAS devices have limited RAM and CPU compared to a dedicated server. Keep an eye on memory consumption. If your NAS starts swapping to disk, performance will degrade dramatically for both containers and regular NAS file operations. Both Synology and QNAP provide resource monitoring dashboards that show per-container CPU and memory usage.

Keep containers updated. Docker images receive regular security patches. Use Watchtower (itself a Docker container) to automatically check for and apply image updates, or manually update through your NAS's container management interface. Running outdated containers with known vulnerabilities on a device that holds your data is a serious security risk. Our NAS Security Guide covers this in more detail.

Which NAS Should You Buy for Docker in Australia?

The right choice depends on how heavily you plan to use containers and whether you need VM support. Here are the three main scenarios.

Light Docker Use (2-4 Containers)

If you want to run Plex plus a couple of utilities like Pi-hole and Tailscale, any entry-level x86 NAS will do. The Synology DS225+ ($585 at Mwave) is the cheapest Synology with Container Manager, though its 2GB RAM will feel tight if you add more containers. The TerraMaster F2-425 ($459 at Scorptec) is even cheaper with an Intel Celeron N5095 and Docker support, though TOS is less refined than DSM. For Plex-focused setups, the DS225+ with a RAM upgrade to 4-8GB is the pragmatic choice. DSM's ecosystem, community support, and stability are worth the premium over TerraMaster.

Moderate Docker Use (5-10 Containers)

This is where most serious home server enthusiasts land. Running Plex, Home Assistant, Pi-hole, Nextcloud, Paperless-ngx, Vaultwarden, and a few other services. You need 8GB RAM and a quad-core x86 CPU. The Synology DS925+ ($1,029 at Mwave) upgraded to 8-16GB RAM is the Synology answer. The QNAP TS-464 ($1,099 at PLE) ships with 8GB and supports up to 16GB, making it the better value if you want more RAM out of the box. The QNAP also gives you the option to run VMs later if needed. Both models support 2.5GbE networking and M.2 NVMe cache slots.

Heavy Docker + VM Use (10+ Containers or VMs)

If you want to run a dozen containers plus Windows or Linux VMs, you need serious hardware. The QNAP TS-473A ($1,489 at PLE) with its AMD Ryzen V1500B and 8GB upgradeable to 64GB is the standout. The Synology DS1525+ ($1,285 at Mwave) with its AMD Ryzen V1500B and 8GB default RAM is competitive but lacks QNAP's Virtualisation Station for VMs. The QNAP TS-673A ($1,699 at PLE) offers six bays and the same Ryzen platform for users who need more storage alongside their container workloads.

NBN and Network Considerations for Docker on NAS

Running containers on your NAS has network implications, especially on Australian NBN connections. Services like Plex and Nextcloud may need to be accessible remotely, which means dealing with Australia's NBN upload speed limitations and the CGNAT issue that affects many connections.

On a typical NBN 100 plan, you get approximately 20Mbps upload (40Mbps on NBN 100/40 plans). This is sufficient for one or two simultaneous remote Plex streams at 720p-1080p but will struggle with 4K remote streaming. If remote access is a priority, consider an NBN 250 or 1000 plan for the higher upload bandwidth. For CGNAT issues, running Tailscale as a container on your NAS is the simplest solution. It punches through CGNAT automatically. See our Remote Access VPN Guide for a complete walkthrough.

On the local network side, Docker containers benefit from faster networking. If you are running multiple containers that serve media or handle file transfers, 2.5GbE is a worthwhile upgrade over 1GbE. Most Docker-capable NAS models from Synology and QNAP now ship with 2.5GbE as standard. For setups involving heavy file transfers alongside container workloads, 10GbE is available via PCIe expansion on higher-end models. Our NAS Networking Guide covers the options in detail.

Our NAS Sizing Wizard helps size storage and RAM for Docker and VM workloads, and our RAID Calculator shows usable capacity for your chosen drive configuration.

If you're exploring AI use cases, see our guide on running a local LLM on a NAS. For a direct comparison with direct-attached storage, see our guide to NAS vs DAS.

Related reading: our NAS explainer.

Can I run Docker on the Synology DS124 or DS223?

No. The DS124 and DS223 use ARM Realtek processors that do not support Docker. You need a Synology Plus-series model with an Intel x86 processor. The cheapest option is the DS225+ at $585 from Mwave. This is the most common mistake buyers make when purchasing a Synology NAS for self-hosting.

How much RAM do I need to run Docker containers on a NAS?

4GB is the realistic minimum for running two to three containers. For five or more containers, 8GB is strongly recommended. If you plan to run resource-heavy containers like Nextcloud, Home Assistant, and Plex simultaneously, 16GB gives you comfortable headroom. The NAS operating system itself (DSM, QTS, ADM) typically uses 500MB-1GB, leaving the rest available for containers.

Which NAS brand has the best Docker support?

Synology's Container Manager has the most polished GUI and the strongest community ecosystem. You will find the most guides, tutorials, and troubleshooting resources for Docker on Synology. QNAP's Container Station is very capable and has the unique advantage of also offering Virtualisation Station for full VMs. For most Australian home users, either brand is an excellent choice. Synology edges ahead on ease of use; QNAP edges ahead on flexibility and raw capability.

Can I run a Windows VM on my NAS?

Yes, but only on QNAP models with Virtualisation Station. QNAP's x86 NAS devices (TS-464, TS-473A, TS-673A, and above) can run Windows 10/11 as a virtual machine. You need at least 8GB RAM total (4GB allocated to the VM, 4GB for the NAS and containers) and a Windows licence. Synology's Virtual Machine Manager exists but is limited to higher-end models and is not as feature-rich as QNAP's offering. No other NAS brand offers meaningful VM support.

Does running Docker containers slow down my NAS?

Lightweight containers like Pi-hole, Tailscale, and Vaultwarden use virtually no CPU and minimal RAM. You will not notice any performance impact. Heavier containers like Plex (during transcoding), Nextcloud, and Home Assistant will use noticeable CPU and RAM resources. If your NAS has sufficient RAM (8GB+), Docker containers and normal NAS file operations coexist without issue. If you run out of RAM and the NAS starts swapping to disk, both container and file performance will degrade significantly.

What is the cheapest Docker-capable NAS available in Australia?

The TerraMaster F2-425 at $459 from Scorptec is the cheapest Docker-capable NAS in Australia with an Intel Celeron N5095 processor. However, TOS (TerraMaster's operating system) is less mature than alternatives. The cheapest from a major brand is the Synology DS225+ at $585 from Mwave, which offers the excellent DSM ecosystem and Container Manager but ships with only 2GB RAM. The Asustor AS5402T (Nimbustor) at $789 from Mwave offers 4GB RAM and Docker via Portainer. For value versus capability, the DS225+ with a RAM upgrade is the sweet spot.

Is Docker on a NAS secure?

Docker on a NAS is as secure as you make it. Containers run in isolation from the host operating system, which provides a layer of protection. However, misconfigured containers. Particularly those with unnecessary port exposure or running as root. Can introduce vulnerabilities. Keep containers updated, avoid exposing ports directly to the internet (use Tailscale or a VPN instead), and follow the principle of least privilege when configuring volume mounts. Never give a container access to your entire NAS filesystem when it only needs one folder. Our NAS Security Guide covers broader NAS security hardening.

Can I run Docker Compose on Synology and QNAP?

Yes. Both Synology Container Manager and QNAP Container Station support Docker Compose (also known as Compose V2). You can create and manage multi-container stacks using YAML configuration files through the web interface or via SSH command line. Docker Compose is the recommended way to manage container deployments on a NAS. It makes your setup reproducible, portable, and easy to back up.

Should I buy a NAS or build a dedicated home server for Docker?

For most Australian home users, a NAS is the better option. A NAS draws 15-30 watts compared to 60-150 watts for a dedicated mini PC or server, which translates to significant electricity savings over a year at Australian power rates. A NAS also provides purpose-built storage (RAID, hot-swap bays, ECC RAM on some models) that a generic PC does not. A dedicated server makes sense if you need more than 32GB RAM, a powerful discrete GPU for transcoding, or more than a dozen containers with heavy workloads. For five to ten containers alongside file storage, a NAS is the practical, cost-effective, and energy-efficient choice.