INSUBCONTINENT EXCLUSIVE:
Kubernetes is an open source system for managing applications in a container technology environment
Kubernetes automates the manual processes to deploy and scale containerized applications
to pilot the container ship
internal project Borg, with containers powering Google Cloud technology
gave them plenty of experience that went into this software program
Kubernetes was then donated to the Linux Foundation as a seed technology, to form the the Cloud Native Computing Foundation (CNCF) in
2015.While Kubernetes is an open source project, it is officially supported by both Microsoft Azure, and Google Cloud
Kubernetes gained initial acceptance among early adopters, which translated to steady growth, and now occupies a prominent position in the
containers located across multiple servers
Kubernetes software enables deployment of these containers, and to scale them across multiple servers to match the workload, including
scheduling of the containers across a cluster
which gets termed a cluster
One of the containers of the cluster is designated as the cluster master, that runs the Kubernetes control plane processes
The other containers of the cluster get assigned as nodes, which are the worker machines, that fall under the control of the cluster master,
which functions as a unified endpoint.The cluster master has total control of its nodes, designating their lifecycle, including assessing
their health, as well as controlling upgrades and repairs to each node
In the cluster, there can be special containers, that get designated as per-node agents with specific functions, for example, log
collection, or intra-cluster network connectivity.The default for a node is for it to have one virtual CPU, and 3.75GB of RAM, which is the
standard Compute Engine machine type
For more compute intensive tasks, a higher baseline minimum CPU platform can be chosen
Rather, some of these resources are needed to run the Kubernetes Engine
The allocatable resources of the node, which can be used to run the application, is the difference between the total resources, and the
amount reserved for the Kubernetes Engine.By way of example, if the node has 4GB of RAM available, 25% of it gets reserved for the
Kubernetes engine, and the remaining 75% can be used to run the application, and requires only 20% of the next 4GB of RAM if the node has a
The Kubernetes Engine is less hungry of CPU resources, reserving only 6% of the processing power of the first core of the node, and only 1%
Kubernetes API calls from the Kubernetes software
Kubernetes popularity is its robust feature set
scaling: Applications can be scaled up or down via a simple command, or automated to match CPU usage.Automated rollouts and rollbacks:
Kubernetes rolls out updates to updates to the applications in stages, rather than all at once, and monitors for health issues, and if
found, will automatically rollback to a more stable version to preserve uptime.Storage orchestration: It works with a variety of storage
solutions for additional flexibility, from local to public cloud.Self-healing: The ability to kill containers that freeze, and restart
containers that freeze or fail their health check.Service discovery and load balancing: Kubernetes is able to assign each container its own
IP address, with one DNS name, and the ability to distribute the load between them.Secret and configuration management: Applications can be
updated without an image rebuild.Batch execution: Management for batch and continuous integration workloads.Real world applications of
KubernetesKubernetes gets used by top corporations, including Comcast, eBay, Goldman Sachs, The New York Times, and Pokemon Go, among many
An example of Kubernetes use is video provider Sling TV, which after their launch in 2015 experienced issues as new subscribers were
outstripping their existing resources as they attempted to distribute live TV through the internet
made to shift to a hybrid cloud strategy
This used both an on-premise VMWare multi data center, integrated with multiple public clouds, and controlled through the Kubernetes
an internal project at Google, it has evolved to become a dominant player for container management software, no doubt fostered by its open
The power and flexibility of the Kubernetes Engine explains why it get used across so many diverse industries.
