Ecosystem and alternatives: EKS, GKE, AKS and competitors
Summary: around Kubernetes revolves the richest software ecosystem in IT history — more than 200 official CNCF projects. This lesson presents the essential tools (Helm, Argo CD, Istio, Prometheus, cert-manager), honestly compares the three big managed offerings (EKS AWS, GKE Google, AKS Azure), and positions Kubernetes against Docker Swarm, Nomad, ECS and OpenShift.
1. The map of the CNCF ecosystem
The CNCF publishes a map of its ecosystem every year — the CNCF Landscape. It lists more than 1500 projects and tools revolving around Kubernetes.
Good news: you do not need to know everything. In 2026, 7 projects cover 80% of what gets installed on a production cluster.
2. The 7 essential projects
These are the natural companions of any serious Kubernetes cluster.
Typically installed in this order when starting a new production cluster:
- Ingress-nginx (HTTP access)
- cert-manager (automatic HTTPS)
- Prometheus + Grafana (observability)
- Argo CD (GitOps)
- External Secrets Operator (secret security)
3. EKS vs GKE vs AKS — the managed offering showdown
The three big cloud providers all offer a managed Kubernetes. They are 90% similar but have important differences.
3.1 · Honest comparison table
| Criterion | EKS (AWS) | GKE (Google) | AKS (Azure) |
|---|---|---|---|
| Launch year | 2018 | 2015 (the oldest) | 2017 |
| Worldwide adoption | #1 (the most used) | #2 | #3 (fast growth) |
| Control plane price | $73/month | $72/month (Standard) — free (Autopilot) | Free |
| Cluster creation speed | 15-20 min | 3-5 min (the fastest) | 5-10 min |
| Kubernetes version | Often behind (2-3 months) | Always up to date | Good tracking |
| Fargate (serverless) | Yes | Autopilot (equivalent) | Container Instances |
| Native ecosystem integration | Excellent AWS (IAM, VPC) | Excellent GCP (Workload Identity) | Excellent Azure AD |
| Documentation | Complete but scattered | Excellent and progressive | Decent |
| Windows containers support | Yes | Yes | Yes (Microsoft native) |
| Default CNI | AWS VPC CNI | Google-native | Azure CNI |
3.2 · Recommendation by context
Practical verdict for 2026:
- In market share, EKS dominates.
- In technical quality, GKE is ahead.
- In value for money for SMEs/startups, GKE Autopilot is unbeatable.
- In Microsoft integration, AKS is the obvious choice.
4. Kubernetes vs Docker Swarm — the match that no longer exists
Historical reminder: between 2015 and 2018, Docker Swarm was presented as the natural competitor of Kubernetes.
Frequent question: "for a small project, isn't Docker Swarm simpler?". The 2026 answer: no, prefer Docker Compose (for dev/POC) or k3s (for small lightweight prod). Docker Swarm is a dead end.
5. Kubernetes vs Nomad — the HashiCorp rebel
HashiCorp's Nomad is Kubernetes' most serious competitor in 2026, despite much smaller market shares.
Nomad is the right choice if you are already in the HashiCorp ecosystem (Terraform, Vault, Consul) and want an orchestrator simpler than Kubernetes. Otherwise, Kubernetes remains the default choice.
6. Kubernetes vs Amazon ECS — the proprietary AWS solution
Amazon ECS (Elastic Container Service) is AWS's proprietary solution for orchestrating containers, released before EKS.
Verdict: ECS is an excellent choice if you are 100% AWS forever. Kubernetes remains the universal choice for portability and recruiting.
7. Kubernetes vs OpenShift — the Red Hat enterprise distribution
Red Hat's OpenShift is an enterprise distribution of Kubernetes, adopted by tens of thousands of large companies and administrations.
Verdict: OpenShift is the enterprise Kubernetes — if your organization needs a support contract with a major vendor, it is the obvious choice.
8. Service Mesh — the layer above
A service mesh is an intelligent network layer on top of Kubernetes that adds advanced features.
Careful: a service mesh is not mandatory. You only need one when you manage dozens of microservices with strong security, observability or traffic control requirements.
9. Final comparative recap
Summary table — when to choose what in 2026.
In 2026, for a serious company building to last, the default answer is managed Kubernetes on one of the three big clouds.
Remember in 30 seconds
- CNCF ecosystem = more than 200 projects around Kubernetes.
- 7 essential projects: Helm, Argo CD, cert-manager, Prometheus, Loki, Ingress-nginx, External Secrets.
- EKS AWS = dominates in market share.
- GKE Google = technically the best, ultra fast to create.
- AKS Azure = free + Microsoft integration.
- Docker Swarm = nearly dead in 2026.
- Nomad = HashiCorp niche, very good in its slot.
- ECS = simple but total AWS lock-in.
- OpenShift = enterprise Kubernetes with Red Hat support.
- Service Mesh (Istio, Linkerd, Cilium) = an advanced layer for microservices, not mandatory.