Who is pod

See Pods and controllers for more information on how Kubernetes uses workload resources, and their controllers, to implement application scaling and auto-healing. Pods are designed to support multiple cooperating processes as containers that form a cohesive unit of service. The containers in a Pod are automatically co-located and co-scheduled on the same physical or virtual machine in the cluster.

The containers can share resources and dependencies, communicate with one another, and coordinate when and how they are terminated. For example, you might have a container that acts as a web server for files in a shared volume, and a separate "sidecar" container that updates those files from a remote source, as in the following diagram:.

Some Pods have init containers as well as app containers. Init containers run and complete before the app containers are started. Pods natively provide two kinds of shared resources for their constituent containers: networking and storage. You'll rarely create individual Pods directly in Kubernetes—even singleton Pods. This is because Pods are designed as relatively ephemeral, disposable entities. When a Pod gets created directly by you, or indirectly by a controller , the new Pod is scheduled to run on a Node in your cluster.

The Pod remains on that node until the Pod finishes execution, the Pod object is deleted, the Pod is evicted for lack of resources, or the node fails. When you create the manifest for a Pod object, make sure the name specified is a valid DNS subdomain name.

You can use workload resources to create and manage multiple Pods for you. A controller for the resource handles replication and rollout and automatic healing in case of Pod failure. For example, if a Node fails, a controller notices that Pods on that Node have stopped working and creates a replacement Pod. The scheduler places the replacement Pod onto a healthy Node.

Controllers for workload resources create Pods from a pod template and manage those Pods on your behalf. PodTemplates are specifications for creating Pods, and are included in workload resources such as Deployments , Jobs , and DaemonSets. Each controller for a workload resource uses the PodTemplate inside the workload object to make actual Pods. The PodTemplate is part of the desired state of whatever workload resource you used to run your app. The sample below is a manifest for a simple Job with a template that starts one container.

The container in that Pod prints a message then pauses. Modifying the pod template or switching to a new pod template has no direct effect on the Pods that already exist.

If you change the pod template for a workload resource, that resource needs to create replacement Pods that use the updated template. For example, the StatefulSet controller ensures that the running Pods match the current pod template for each StatefulSet object.

If you edit the StatefulSet to change its pod template, the StatefulSet starts to create new Pods based on the updated template. Eventually, all of the old Pods are replaced with new Pods, and the update is complete. Each workload resource implements its own rules for handling changes to the Pod template. On Nodes, the kubelet does not directly observe or manage any of the details around pod templates and updates; those details are abstracted away.

That abstraction and separation of concerns simplifies system semantics, and makes it feasible to extend the cluster's behavior without changing existing code. As mentioned in the previous section, when the Pod template for a workload resource is changed, the controller creates new Pods based on the updated template instead of updating or patching the existing Pods.

Kubernetes doesn't prevent you from managing Pods directly. It is possible to update some fields of a running Pod, in place. However, Pod update operations like patch , and replace have some limitations:. Most of the metadata about a Pod is immutable. And there are no plans for the band to reunite with such past collaborators as Carlos Santana and Katy Perry, who — as a young unknown in — sang harmony vocals on the P. But the group wants its new music to appeal to younger fans, as well as longtime followers.

It will be followed by 22 shows, nationwide, in November and December, with a European tour set for February and March. Here are edited excerpts from that interview. But the devoutly Christian band, which once used Katy Perry as a back-up singer, wants to draw younger fans, as vocalist Sonny Sandoval confirms in this new int. Q: What was the goal when P. Did you have any idea you would be here 26 years later? A: No. I mean, we were just kids having fun. You know, it was a way to kind of avoid trouble here in San Diego.

We were all going through changes in our lives, spiritual, just growing up, trying to figure out life. It was part of our lifestyle. And we did things independently and we kept at it, and things just- you know. I feel lucky, I feel blessed. Q: Some bands kind of find a meaning to their life by making their music.

Some bands literally or figuratively find salvation through music. How about you guys? Here I was, I was trying to allow it to, you know, shape me and form me and as this young teenage kid… I had just lost my mother.

Music was kind of, it was a comfort for me. And here I was going through these changes and all these thoughts and things that I wanted to express. And, when I was given the opportunity, I took it. And I And I just, it kind of really fell in my lap. But I knew if I had that mic in front of me I was going to scream something — and I took the opportunity.

A: Well, we were all young, you know. The guys were really into, kind of, the metal scene. And you had the big names, Metallica, Slayer. Payable On Death still sounded tough. At the time, one of our girlfriends worked at a bank. And it was a banking term — when someone passes on, what they leave behind.

And here we were, with this zeal and passion, to go and tell the world about our faith. It was three words in the name, not just one — all this crazy stuff — and Payable On Death just sounded cool, sounded tough. But after a while, you just shorten it up and it becomes P.

You know, as you grow, as you mature things change, your political ideas, religious ideas, all kinds of things change. Me personally, my faith is stronger than ever.

It keeps me grounded with my kids. And, without it, I think I would just be lost. Also in , guitarist Jason Truby left the band -- purportedly on the same day that original guitarist Marcos Curiel asked to rejoin. Following the album's release, Sandoval decided to step away from the band to reevaluate his career and spend time with his family. Subsequently, P.

Sandoval eventually reunited with his bandmates, and in P. The album found Howard Benson returning to the producer's chair after his previous work with the band on Satellite. The album cracked the Top 20 of the Billboard , and hit number one on the Top Christian Albums chart.

The group's tenth studio album, Circles , arrived in , and included the tracks "Rockin' with the Best" and "Soundboy Killa. AllMusic relies heavily on JavaScript. Please enable JavaScript in your browser to use the site fully. Blues Classical Country. Electronic Folk International. Jazz Latin New Age.

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