Kubernetes
KubeSpray - Deploy a production ready K8S on AWS, GCP, baremetal, etc. - https://kubespray.io/
Service mesh
Linkerd - https://linkerd.io/
Istio - "An open platform to connect, manage, and secure microservices" - https://istio.io/
Cloud-native network functions
from Pantheon.Tech - https://cdnf.io/cnf_list/
Misc
"A tool for developers to create cloud-native applications on Kubernetes" - https://github.com/azure/draft
OpenTelemetry - An observability framework for cloud-native software - https://opentelemetry.io
Graylog - log management - https://www.graylog.org/products/open-source
Serverless
Serverless framework - "Build auto-scaling, pay-per-execution, event-driven apps" - https://serverless.com/
Cloud Native Computing Foundation
CNI - the Container Network Interface - https://github.com/containernetworking/cni
rkt - Docker alternative - https://github.com/rkt/rkt