As mentioned previously, ingress controllers are special Kubernetes components that are deployed to publish applications and services.
Ingress resources will define rules and routes required to expose HTTP and HTTPS deployed services.
An ingress controller will complete this equation as a reverse proxy, adding load-balancing capabilities. These features can be arranged by an external edge router or a cluster-deployed software proxy. Any of these will manage traffic using dynamic configurations built using ingress resource rules.
We can also use ingress for TCP and UDP raw services. This will depend on which ingress reverse proxy has been deployed. It is customary to publish an application's services using protocols other than HTTP and HTTPS. In this case, we can use either Router Mesh on Docker Swarm or NodePort/LoadBalancer on Kubernetes.
An ingress resource may look like the following YAML file:
apiVersion: networking...
