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Cloud · head to head

Cilium vs DigitalOcean

Cilium logo

Cilium

Cloud

eBPF-based networking, observability and security for Kubernetes

From
Free
Rated
-
Full reviewWebsite
DigitalOcean logo

DigitalOcean

Cloud

The developer cloud

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; DigitalOcean data transfer overage charged at $0.01 per GiB beyond included allowances
  • They diverge on capability: Cilium covers eBPF datapath, DigitalOcean covers Droplets (VPS).

Where they differ

Only the attributes on which Cilium and DigitalOcean actually diverge.

Attributes where Cilium and DigitalOcean differ
AttributeCiliumDigitalOcean
Pricing modelOpen source, no licence feeusage-based
PlatformsKubernetes, LinuxLinux, Cloud (AWS, GCP, Azure backend)
FoundedUnknown2011

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 DigitalOcean

  • Droplets (VPS)
  • Managed Kubernetes
  • App Platform
  • Managed Databases
  • Spaces (Object Storage)
  • Floating IPs
  • Load Balancers
  • Firewalls

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 DigitalOcean
  • Network policy expressed on workload identity rather than fragile IP rulesnot DigitalOcean
  • Seeing which services actually talk to each other, and what policy is droppingnot DigitalOcean

DigitalOcean

  • Developers seeking affordable VPS starting at $4/month for small applicationsnot Cilium
  • Teams deploying containerised workloads with Kubernetes starting at $12/month cluster costnot Cilium
  • Data scientists and ML engineers requiring NVIDIA GPU access at $1.91/GPU/hour (committed)not 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

DigitalOcean

  • Data transfer overage charged at $0.01 per GiB beyond included allowances
  • Free tier includes only 3 static sites; additional static sites require paid upgrade
  • Container registry free tier capped at 500 MiB storage; exceeding requires paid tier
  • Functions free tier allows 90,000 GiB-seconds monthly; overages billed on usage basis
  • GPU Droplets require minimum monthly commitment for lower hourly rates; on-demand significantly more expensive

Pricing, plan by plan

Cilium

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

DigitalOcean

Free

No published plan breakdown. See the DigitalOcean review.

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 DigitalOcean if

  • You need droplets (vps).
  • You want to start without paying.
  • You work on Linux, Cloud (AWS, GCP, Azure backend).
  • You also want managed kubernetes.
DigitalOcean review

Questions people ask

Is Cilium or DigitalOcean better?
Neither clearly leads. Cilium starts at Free and DigitalOcean at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cilium or DigitalOcean?
Cilium starts at Free and DigitalOcean at Free.
Does Cilium or DigitalOcean run on more platforms?
Cilium runs on Kubernetes, Linux. DigitalOcean runs on Linux, Cloud (AWS, GCP, Azure backend).
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 DigitalOcean is typically brought in for.
What can Cilium do that DigitalOcean cannot?
Cilium covers eBPF datapath, Identity-based policy, Hubble observability, Sidecar-free mesh. DigitalOcean covers Droplets (VPS), Managed Kubernetes, App Platform, Managed Databases.

Answered from the vendors’ own pages

Cilium: Is Cilium free?

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

DigitalOcean: How much does a DigitalOcean Droplet cost?

The cheapest Basic Droplet is $4.00 per month, or $0.00595 per hour, and includes 1 vCPU, 512 MiB of memory, 10 GiB of SSD and 500 GiB of transfer. The next step up is $6.00 per month with 1 GiB of memory, 25 GiB of SSD and 1,000 GiB of transfer.

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.

DigitalOcean: How is DigitalOcean billed?

Droplets are billed hourly as well as monthly, and DigitalOcean states that Bundled Plan and v5 Droplets are billed on a per second basis with a 60 second minimum charge.

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.

DigitalOcean: What does the cheapest DigitalOcean plan include?

At $4.00 per month you get a single vCPU, 512 MiB of memory, 10 GiB of SSD storage and 500 GiB of outbound transfer. That is the smallest Basic Droplet DigitalOcean sells.

Source
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