kubectl run -i --tty busybox --image=nicolaka/netshoot:1.0.0 --restart=Never -- bash
search <namespace>.svc.cluster.local svc.cluster.local cluster.local
options ndots:5
curl foo-service.default.svc.cluster.local
Separation of Concerns (SoC)
a design principle that manages complexity by partitioning the software system so that each partition is responsible for a separate concern, minimizing the overlap of concerns as much as possible.
https://en.wikipedia.org/wiki/Separation_of_concerns
a design principle that manages complexity by partitioning the software system so that each partition is responsible for a separate concern, minimizing the overlap of concerns as much as possible.
https://en.wikipedia.org/wiki/Separation_of_concerns
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NGINX Cookbook by Derek DeJonghe.pdf
2.5 MB
# Nginx
Third Edition
Third Edition
🔹 ClusterIP: The default service type that exposes the service on an internal cluster IP address, making it reachable only from within the cluster.
🔹 NodePort: Exposes the service on each node's IP address at a static port (the NodePort). The service becomes accessible externally at <NodeIP>:<NodePort>.
🔹 LoadBalancer: Exposes the service externally using a cloud provider’s load balancer.
🔹 ExternalName: Maps the service to a DNS name, commonly used to represent an external resource like a database inside the Kubernetes cluster.
🔹 NodePort: Exposes the service on each node's IP address at a static port (the NodePort). The service becomes accessible externally at <NodeIP>:<NodePort>.
🔹 LoadBalancer: Exposes the service externally using a cloud provider’s load balancer.
🔹 ExternalName: Maps the service to a DNS name, commonly used to represent an external resource like a database inside the Kubernetes cluster.
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