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Kubernetes networking 101 – Services
In our last post we talked about how Kubernetes handles pod networking. Pods are an important networking construct in Kubernetes but by themselves they have certain limitations. Consider for instance how pods are allocated. The cluster takes care of running the pods on nodes – but how do we know which nodes it chose? Put another way – if I want to consume a service in a pod, how do I know how to get to it? We saw at the very end of the last post that the pods themselves could be reached directly by their allocated pod IP address (an anti-pattern for sure but it still works) but what happens when you have 3 or 4 replicas? Services aim to solve these problems for us by providing a means to talk to one or more pods grouped by labels. Let’s dive right in…
To start with, let’s look at our lab where we left at the end of our last post…
If you’ve been following along with me there are some pods currently running. Let’s clear the slate and delete the two existing test deployments we had out there…
user@ubuntu-1:~$ kubectl delete deployment pod-test-1 deployment "pod-test-1" Continue reading
How to decide between cloud, on-premise and As-a-Service
Although vendor-written, this contributed piece does not advocate a position that is particular to the author’s employer and has been edited and approved by Network World editors.
Deciding whether and how to use cloud computing is a complex, and made all the more complicated by the overwhelming number of vendors and products. What’s more, hybrid and multicloud approaches blur the lines between the cloud and on-premise deployment options.
With an operations team that counsels organizations on which type of architecture is best for them – on premise, cloud, hybrid or multicloud – and then evaluates what went well and didn’t in all four kinds of deployments, here’s our view of what situations tip the scale toward one approach or another. While the context is data storage, this analysis applies to most enterprise IT scenarios.
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Worth Reading: Microsoft’s Open Approach to Networking
The post Worth Reading: Microsoft’s Open Approach to Networking appeared first on 'net work.
Huawei Invests $1 Billion in Public Cloud Platform
The company plans to create a cloud business unit.