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Container Orchestration

Managing containerized applications at scale with Kubernetes and beyond

⬱ NIVÅ 2Tekniskt
+$25k-
LönepÄverkan
8 mÄnader
Tid att lÀra sig
SvÄr
SvÄrighetsgrad
12
KarriÀrer
I korthet

Container orchestration automates deployment, scaling, and management of containerized applications across clusters. Kubernetes dominates production (94% adoption), but ECS, Nomad, and Docker Swarm serve specific niches. Career path: Operator (kubectl basics, Helm, $95-130k) → Platform Engineer (RBAC, GitOps, autoscaling, $135-190k) → Architect (multi-cluster, custom operators, eBPF networking, $160-240k) over 8-12 months. Ecosystem: kubectl, Helm, Argo CD, Flux, OpenShift, Rancher, k3s for orchestration; Prometheus + ELK for observability. KubeCon is the gathering.

Vad Àr Container Orchestration

Container orchestration automates the deployment, scaling, networking, and management of containerized applications. Kubernetes is the dominant platform, but understanding the broader ecosystem (Helm, Kustomize, operators, service mesh) is essential for production deployments. This skill is foundational for modern cloud-native development and is consistently among the highest-paid DevOps/platform engineering competencies.

🔧 VERKTYG & EKOSYSTEM
KubernetesHelmArgo CDFluxOpenShiftRancherNomadDocker SwarmAWS ECSGoogle GKEAzure AKSk3s

📋 Innan du börjar

Docker ComposeCloud Platforms

💰 Lön per region

OmrÄdeNybörjareMidErfaren
USA$110k$160k$220k
UKÂŁ65kÂŁ95kÂŁ140k
EU€70k€105k€150k
CANADAC$120kC$170kC$240k

❓ Vanliga frĂ„gor

Kubernetes vs ECS, when do I use which?
Kubernetes: multi-cloud, portable, steep learning curve, best if you need portability or run hybrid/multi-cloud. ECS: AWS-native, simpler API, tight CloudWatch integration, cheaper if all-in on AWS. Decision: all-AWS and simple? → ECS. Need portability or multi-cloud? → Kubernetes. Modern trend: ECS for startups, Kubernetes for scale.
Is Kubernetes overkill for my startup?
Probably yes if: < 5 services, < 2 engineers, < 100 RPS sustained. Try Docker Compose or ECS Fargate first. Kubernetes is worth the pain when: multi-team ownership, high availability hard requirement, or 10+ services. k3s is the lighter entry point, not full Kubernetes.
What's the difference between Helm, Kustomize, and Argo CD?
Helm: package manager (templating + charts). Kustomize: overlay tool (no templates, pure YAML patching). Argo CD: GitOps operator (declarative, continuous reconciliation, watches Git). Use: Helm for reusable packages, Kustomize for per-env customization, Argo CD for the sync loop. Many teams use all three: Helm → generate base, Kustomize → overlay per env, Argo CD → keep cluster in sync.
How do I manage secrets in Kubernetes?
Never commit plaintext to Git. Options: (1) Sealed Secrets (encrypt at rest in Git, decrypt in cluster), (2) External Secrets (fetch from Vault/AWS Secrets Manager), (3) Kyverno policies (enforce secret encryption). For production: use External Secrets + Vault or AWS Secrets Manager. For dev: k8s Secrets are fine if you trust cluster admins.
Multi-cluster strategies, when and how?
Single cluster: 99.9% of apps. Multi-cluster when: disaster recovery SLA > 99.95%, geo-latency critical, or avoiding vendor lock-in. Patterns: (1) active-passive (cold standby), (2) active-active (federated services, cluster-local caches, eventual consistency). Tools: KubeFed, Istio multi-mesh, Cilium ClusterMesh. Cost: 2x infrastructure + operational complexity. Start single-cluster; upgrade only when you hit its limits.
Should I skip Kubernetes and just use serverless (Lambda/Cloud Run)?
Serverless shines: stateless request-response, unpredictable spikes, 1–1000s scale variance. Containers win: stateful, background jobs, custom runtimes, cost-predictable sustained load. Hybrid: use serverless for APIs + glue, containers for databases, caches, batch jobs. Pure serverless is simpler; pure containers offer more control. Most orgs do both.

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