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Developer Tools · head to head

Ansible vs Cilium

Ansible logo

Ansible

Developer Tools

Simple, agentless IT automation

From
Free
Rated
-
Full reviewWebsite
Cilium logo

Cilium

Cloud

eBPF-based networking, observability and security for Kubernetes

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Ansible the open source project gives the engine and the language; the automation controller, automation mesh, automation hub, analytics and governance all belong to the paid Red Hat Ansible Automation Platform; Cilium requires a recent Linux kernel, which rules out older distributions and some managed environments
  • They diverge on capability: Ansible covers Playbooks, Cilium covers eBPF datapath.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Ansible and Cilium actually diverge.

Attributes where Ansible and Cilium differ
AttributeAnsibleCilium
Pricing modelopen-sourceOpen source, no licence fee
PlatformsLinux, Windows, Mac, ApiKubernetes, Linux
CategoryDeveloper ToolsCloud
Founded2012Unknown

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

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 Ansible

  • Playbooks
  • Inventory management
  • Module library
  • Variables and templating
  • Handlers
  • Roles
  • Async tasks
  • Plugins

Only in Cilium

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

What people use each for

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

Ansible

  • Configuration managementnot Cilium
  • Server provisioningnot Cilium
  • Application deploymentnot Cilium
  • Multi-node managementnot Cilium
  • Orchestrationnot Cilium

Cilium

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

Where each one falls short

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

Ansible

  • The open source project gives the engine and the language; the automation controller, automation mesh, automation hub, analytics and governance all belong to the paid Red Hat Ansible Automation Platform
  • Event-Driven Ansible and the AI coding assistant are platform features rather than open source ones
  • Red Hat does not publish platform pricing
  • Running open source Ansible at scale means building the control plane the platform otherwise provides

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

Pricing, plan by plan

Ansible

Free
  • Open SourceFree
    • Community edition
    • Unlimited nodes
    • Full functionality
  • Ansible Automation Platform$5000/year
    • Enterprise support
    • Ansible Tower
    • Advanced features

Cilium

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

Which should you pick?

Choose Ansible if

  • You need playbooks.
  • You want to start without paying.
  • You work on Linux, Windows, Mac, Api.
  • You also want inventory management.
Ansible review

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

Questions people ask

Is Ansible or Cilium better?
Neither clearly leads. Ansible starts at Free and Cilium at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Ansible or Cilium?
Ansible starts at Free and Cilium at Free.
Does Ansible or Cilium run on more platforms?
Ansible runs on Linux, Windows, Mac, Api. Cilium runs on Kubernetes, Linux.
Can I use Ansible for free?
Both have a free tier, so you can try either at no cost before committing.
What is Ansible best used for?
Ansible is most often used for configuration management, server provisioning, application deployment, multi-node management. Of those, configuration management and server provisioning are not what Cilium is typically brought in for.
What can Ansible do that Cilium cannot?
Ansible covers Playbooks, Inventory management, Module library, Variables and templating. Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh.

Answered from the vendors’ own pages

Ansible: Is Ansible free for commercial use?

Ansible Collaborative is open source. The page describes it as 'an open source IT automation engine' and does not impose restrictions on commercial use for the open source version.

Source
Cilium: Is Cilium free?

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

Ansible: What is the difference between open source Ansible and the commercial alternative?

The page references Red Hat Ansible Automation Platform as an enterprise alternative to Ansible Collaborative, but does not disclose specific differences, pricing, or feature comparisons between the two offerings.

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.

Ansible: Is there paid support available for Ansible?

The page does not disclose whether paid support contracts are available for open source Ansible or whether Red Hat offers support plans for their enterprise Ansible Automation Platform.

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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