Softwr

Cloud · head to head

containerd vs Icinga

containerd logo

containerd

Cloud

Industry-standard container runtime, and the engine inside Docker

From
Free
Rated
-
Full reviewWebsite
Icinga logo

Icinga

Networking

Open source infrastructure monitoring, free at its core, with paid support and modules sold separately by Icinga GmbH

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: containerd not a developer-facing tool: there is no build command and the CLI is deliberately minimal, so it needs companions like nerdctl or Buildah; Icinga the free core has no vendor SLA, so production incidents are supported through community channels unless a paid support subscription is purchased
  • They diverge on capability: containerd covers Full container lifecycle, Icinga covers Forever Free core.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which containerd and Icinga actually diverge.

Attributes where containerd and Icinga differ
AttributecontainerdIcinga
Pricing modelOpen source, no licence feeOpen source core, with paid repository, module and support subscriptions sold separately
PlatformsLinux, WindowsLinux, Web
CategoryCloudNetworking

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 containerd

  • Full container lifecycle
  • CRI support
  • OCI compliant
  • Snapshotter plugins
  • Namespaces
  • Stable API

Only in Icinga

  • Forever Free core
  • Clustering and HA
  • Icinga Web and API
  • Enterprise modules (paid)
  • Integration ecosystem

What people use each for

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

containerd

  • Running the container runtime under a Kubernetes cluster after the Docker shim removalnot Icinga
  • Building a platform or PaaS that needs to execute containersnot Icinga
  • Reducing the moving parts on nodes that only ever run Kubernetes workloadsnot Icinga
  • Embedding container execution inside another productnot Icinga

Icinga

  • An IT team wanting unlimited-scale open source monitoring with no per-host licence fee, running standard Linux distributionsnot containerd
  • An organisation on RHEL or SLES that wants officially packaged Icinga builds via the repository subscription rather than building from sourcenot containerd
  • A team wanting an SLA-backed vendor support relationship rather than relying on community forums for a production monitoring systemnot containerd
  • A company already invested in Prometheus and Grafana wanting to add host and service-level alerting from a compatible open source toolnot containerd

Where each one falls short

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

containerd

  • Not a developer-facing tool: there is no build command and the CLI is deliberately minimal, so it needs companions like nerdctl or Buildah
  • Debugging is lower-level than Docker, and error messages assume knowledge of the runtime internals
  • Documentation is aimed at platform engineers, so newcomers usually find Docker or Podman material more useful
  • No image building at all — that is out of scope by design

Icinga

  • The free core has no vendor SLA, so production incidents are supported through community channels unless a paid support subscription is purchased
  • Repository access for enterprise Linux distributions like RHEL and SLES is not free, so organisations standardised on those distributions face a real recurring cost most open source monitoring buyers do not expect
  • Enterprise modules are gated behind a separate module subscription, so some functionality demonstrated in marketing material is not part of the free core
  • Self-hosting and operating Icinga requires real Linux and monitoring expertise that a commercial SaaS tool would otherwise absorb, so total cost of ownership includes staff time not captured in the licence price
  • Pricing for the paid subscriptions varies by geographic region and is not published as a single global rate card, complicating budgeting for multinational organisations
  • The web interface and configuration language, while capable, are less immediately polished than a fully commercial tool like PRTG, and initial setup takes longer to reach a usable state

Pricing, plan by plan

containerd

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

Icinga

Free
  • IcingaFree
    • Unlimited hosts and services
    • Clustering and API
    • Community support
  • Support Subscription$undefined/year
    • Professional support (8x5 or 24/7)
    • Includes module and repository subscriptions

Which should you pick?

Choose containerd if

  • You need full container lifecycle.
  • You want to start without paying.
  • You work on Linux, Windows.
  • You also want cri support.
containerd review

Choose Icinga if

  • You need forever free core.
  • You want to start without paying.
  • You work on Linux, Web.
  • You also want clustering and ha.
Icinga review

Questions people ask

Is containerd or Icinga better?
Neither clearly leads. containerd starts at Free and Icinga at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, containerd or Icinga?
containerd starts at Free and Icinga at Free.
Does containerd or Icinga run on more platforms?
containerd runs on Linux, Windows. Icinga runs on Linux, Web.
Can I use containerd for free?
Both have a free tier, so you can try either at no cost before committing.
What is containerd best used for?
containerd is most often used for running the container runtime under a kubernetes cluster after the docker shim removal, building a platform or paas that needs to execute containers, reducing the moving parts on nodes that only ever run kubernetes workloads, embedding container execution inside another product. Of those, running the container runtime under a kubernetes cluster after the docker shim removal and building a platform or paas that needs to execute containers are not what Icinga is typically brought in for.
What can containerd do that Icinga cannot?
containerd covers Full container lifecycle, CRI support, OCI compliant, Snapshotter plugins. Icinga covers Forever Free core, Clustering and HA, Icinga Web and API, Enterprise modules (paid).

Answered from the vendors’ own pages

containerd: Is containerd free?

Yes. It is an open-source CNCF graduated project with no licence fee.

Icinga: Is Icinga free to run in production?

Yes, the core platform has no licence fee and no limit on hosts or services monitored.

containerd: Do I need containerd if I use Docker?

You already have it. Docker uses containerd underneath to run containers; it is not an alternative you install separately.

Icinga: What do the paid subscriptions actually add?

A repository subscription provides packages for certain enterprise Linux distributions, a module subscription unlocks enterprise-only add-on modules, and a support subscription bundles both with professional support.

containerd: Why did Kubernetes drop Docker for containerd?

Kubernetes talks to runtimes through the Container Runtime Interface. Docker did not speak CRI natively and needed a shim, so Kubernetes removed the shim and talks to containerd directly, which Docker was already using anyway.

Icinga: Is Icinga related to Nagios?

Yes, it originated as a fork of Nagios but has since diverged into an independently developed platform.

containerd: Can containerd build images?

No. Image building is deliberately out of scope. Tools such as Buildah, BuildKit or Docker handle that.

Share

Related pages

More on containerd

More on Icinga

Keep looking

Other head to heads