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Cloud · head to head

Cilium vs Vagrant

Cilium logo

Cilium

Cloud

eBPF-based networking, observability and security for Kubernetes

From
Free
Rated
-
Full reviewWebsite
Vagrant logo

Vagrant

Cloud

Development environments made easy

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Cilium requires a recent Linux kernel, which rules out older distributions and some managed environments; Vagrant vagrant 2.4.3 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence
  • They diverge on capability: Cilium covers eBPF datapath, Vagrant covers Box management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Cilium and Vagrant actually diverge.

Attributes where Cilium and Vagrant differ
AttributeCiliumVagrant
Pricing modelOpen source, no licence feeopen-source
PlatformsKubernetes, LinuxLinux, Windows, Mac
FoundedUnknown2010

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Cloud).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Cilium

  • eBPF datapath
  • Identity-based policy
  • Hubble observability
  • Sidecar-free mesh

Only in Vagrant

  • Box management
  • Provider support
  • Multi-machine setups
  • Provisioners
  • Networking
  • Synced folders
  • Snapshots
  • Plugins

What people use each for

The jobs each tool is most often brought in to do.

Cilium

  • Kubernetes networking at a scale where iptables-based CNI performance degradesnot Vagrant
  • Network policy expressed on workload identity rather than fragile IP rulesnot Vagrant
  • Seeing which services actually talk to each other, and what policy is droppingnot Vagrant

Vagrant

  • Reproducible local development environments defined in a Vagrantfilenot Cilium
  • Provisioning identical VMs across VirtualBox, VMware and Hyper-V for a teamnot Cilium
  • Sandboxing multi-machine setups on a developer laptopnot Cilium

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Cilium

  • Requires a recent Linux kernel, which rules out older distributions and some managed environments
  • eBPF is genuinely hard to debug when it misbehaves, and the skill is rare on most teams
  • Broad scope — CNI, policy, mesh, observability — means the learning curve covers several domains at once

Vagrant

  • Vagrant 2.4.3 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence
  • The Additional Use Grant forbids offering Vagrant to third parties on a hosted or embedded basis in a paid product that competes with IBM's paid versions of Vagrant
  • Each version converts to the MPL 2.0 Change License only four years after that version is first published
  • Uses that fall outside the Additional Use Grant require a separately negotiated licence from the licensor

Pricing, plan by plan

Cilium

Free
  • CiliumFree
    • Full functionality
    • No usage limits
    • Community support

Vagrant

Free
  • Open SourceFree
    • Development environment provisioning
    • Multiple providers
    • Provisioner support

Which should you pick?

Choose Cilium if

  • You need ebpf datapath.
  • You want to start without paying.
  • You work on Kubernetes, Linux.
  • You also want identity-based policy.
Cilium review

Choose Vagrant if

  • You need box management.
  • You want to start without paying.
  • You work on Linux, Windows, Mac.
  • You also want provider support.
Vagrant review

Questions people ask

Is Cilium or Vagrant better?
Neither clearly leads. Cilium starts at Free and Vagrant at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cilium or Vagrant?
Cilium starts at Free and Vagrant at Free.
Does Cilium or Vagrant run on more platforms?
Cilium runs on Kubernetes, Linux. Vagrant runs on Linux, Windows, Mac.
Can I use Cilium for free?
Both have a free tier, so you can try either at no cost before committing.
What is Cilium best used for?
Cilium is most often used for kubernetes networking at a scale where iptables-based cni performance degrades, network policy expressed on workload identity rather than fragile ip rules, seeing which services actually talk to each other, and what policy is dropping. Of those, kubernetes networking at a scale where iptables-based cni performance degrades and network policy expressed on workload identity rather than fragile ip rules are not what Vagrant is typically brought in for.
What can Cilium do that Vagrant cannot?
Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh. Vagrant covers Box management, Provider support, Multi-machine setups, Provisioners.

Answered from the vendors’ own pages

Cilium: Is Cilium free?

Yes, open source and CNCF-graduated. Isovalent sells an enterprise distribution and support.

Vagrant: Is Vagrant free to use?

Vagrant is a free, open-source command-line utility for managing virtual machine lifecycles.

Source
Cilium: What does eBPF change?

It lets Cilium run packet-processing programs inside the kernel instead of relying on iptables rule chains, which behave poorly as the number of services grows.

Vagrant: Does Vagrant offer a paid tier?

Vagrant itself is free. HashiCorp offers a HCP Vagrant Registry with a free tier for use with Vagrant.

Source
Cilium: Does Cilium replace a service mesh?

It can cover much of what a mesh does without sidecars, though full mesh feature sets still favour Istio or Linkerd.

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