Kubernetes/Containers on Server
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Kubernetes Adoption Challenges Solved
The business wants better software, brought to market faster. Enterprise IT wants to manage cost and risk. The problem for large, complex organizations is that they need to accomplish these objectives and still maintain existing business operations. It is like changing the wheels of an F1 race car at full speed without a pit stop.
While some see cloud as a cure-all for the digital transformation goals set by CEOs, the reality of running large systems at scale in the cloud is rife with inconsistent interfaces, and the differing topologies of multiple cloud providers.
Cloud providers are painting themselves as the heroes that will enable digital transformation. Each one has a specific implementation of its infrastructure, and some are now offering on-premises datacenter hybrid-cloud appliances. The lack of homogeneity in their cloud technology will have a detrimental effect to those on the journey towards digital transformation, however. Developers and enterprise IT engineers have to learn the nuances of at least two clouds: public and private. Sometimes, they’re required to deal with even more. As a result, cost increases, complexity becomes common and developer productivity decreases.
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Hardware Accelerated SSL/TLS Termination in Ingress Controllers using Kubernetes Device Plugins and RuntimeClass
A Kubernetes Ingress is a way to connect cluster services to the world outside the cluster. In order to correctly route the traffic to service backends, the cluster needs an Ingress controller. The Ingress controller is responsible for setting the right destinations to backends based on the Ingress API objects’ information. The actual traffic is routed through a proxy server that is responsible for tasks such as load balancing and SSL/TLS (later “SSL” refers to both SSL or TLS ) termination. The SSL termination is a CPU heavy operation due to the crypto operations involved. To offload some of the CPU intensive work away from the CPU, OpenSSL based proxy servers can take the benefit of OpenSSL Engine API and dedicated crypto hardware. This frees CPU cycles for other things and improves the overall throughput of the proxy server.
In this blog post, we will show how easy it is to make hardware accelerated crypto available for containers running the Ingress controller proxy using some of the recently created Kubernetes building blocks: Device plugin framework and RuntimeClass. At the end, a reference setup is given using an HAproxy based Ingress controller accelerated using Intel® QuickAssist Technology cards.
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History of Container Technology Offers Lessons for Future
Many of the issues associated with container technology are due to infrastructure decisions made long before containers, cloud and the internet even existed.
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