Orchestration

• Docker swarm / compose
• Kubernetes (k8s)
• OpenShift (productized k8s) / OKD
• Nomad
• Mesos
• Rancher

Setup: Simple setup, when Docker engine is installed

Scaling: Scale up or down commands (no auto-scaling?)

Blue green deployments:

• Swarm (nginx) https://www.goetas.com/blog/traps-on-the-way-of-blue-green-deployments/
• Swarm https://github.com/cecchisandrone/docker-swarm-blue-green
• (nginx, consul): https://botleg.com/stories/blue-green-deployment-with-docker/
• Compose and Traefik https://coderbook.com/@marcus/how-to-do-zero-downtime-deployments-of-docker-containers/

• Installer: kubespray, kops, kubeadm
• Mini-dev-dist:
  • minikube (uses vms, needs hypervisor)
  • microk8s (snap)

Resource manager: Pool resources of data center, expose API for Frameworks with scheduling and job management logic.

Architecture: Zookeeper dependency

Frameworks on top: Aurora, Marathon

General purpose: virtualized, containerized and standalone apps

Simpler architecture: Client and server binaries

Composing with Consul (service discovery) and Vault (secret management)

Scale: > 10.000 nodes (stated by HashiCorp)

Locations: multi-datacenter, multi-region

Requirements: RHEL, CoreOS, CentOS

Enhanced security: No root containers, RBAC, integration with AD

Additional components: Internal container registry, EFK logging stack, Prometheus Monitoring, Jenkins

Templates: No Helm

Ingress: Router instead of Ingress

K8s distribution

Simplification of Kubernetes deployment / management

Service meshs

• Istio
• Consul (also Service discovery)