Kubernetes 101 : Services and deployment
A kubernetes service is a persistent virtual IP address that allows client applications to be able to always connect to the pods, since the pods crash and get redeployed with a new IP address.
The Kube-proxy is a kubernetes object that runs on all the nodes of the cluster and does the mapping between the services and the pods using ip-tables rules for the routing of the requests.
Then we expose our deployment "nginx-dep" through a service on "port:80", using the below command:
The Kube-proxy is a kubernetes object that runs on all the nodes of the cluster and does the mapping between the services and the pods using ip-tables rules for the routing of the requests.
Deployments:
Instead of managing pods individually, we could group them in deployments and manage them as a single unit.
We first create our deployment of the "nginx" pods using the command line as below:
The requests reach the service on "port:80", and get redirected to one of the "nginx" pods.
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