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Custom Kube 2 Driver Download: Discover the Benefits of the Sturdy and Versatile Printer

  • Writer: ambalkettrenpo
    ambalkettrenpo
  • Aug 20, 2023
  • 6 min read


Kubernetes currently supports Amazon Elastic Block Store (EBS) with the in-tree kubernetes.io/aws-ebs plugin, which has been deprecated since Kubernetes 1.17. We recommend moving to the Amazon EBS CSI Driver, using the ebs.csi.aws.com provisioner. AWS maintains open-source CSI drivers for Amazon EBS, as well as Amazon Elastic File System (EFS) and FSx for Lustre, for seamless integration with Kubernetes volume operations and their respective storage services. These CSI drivers are maintained separately from the upstream project by implementing the CSI interface, allowing independent maintenance and feature development.




Custom Kube 2 Driver Download



Under Kubernetes/OpenShift, select Download dynakube.yaml, and then copy the code block created by Dynatrace based on your input from previous steps and run it in your terminal. Be sure to execute the commands in the same directory where you downloaded the YAML, or adapt the commands to link to the location of the YAML.


Note: The downloaded YAML file is a basic version of the DynaKube custom resource definition. To adapt values to your specific needs, see our preconfigured DynaKube custom resource samples from GitHub. For more information about deployment options, see Deployment options on Kubernetes/OpenShift.


Note: In Kubernetes, used tokens are stored in a secret named dynakube by default. If the DynaKube custom resource has a different name, or the tokens field in Dynakube is set, make sure that the new secret has the same name as defined there.


AWS Secrets Manager now enables you to securely retrieve secrets from AWS Secrets Manager for use in your Amazon Elastic Kubernetes Service (Amazon EKS) Kubernetes pods. With the launch of AWS Secrets and Config Provider (ASCP), you now have an easy-to-use plugin for the industry-standard Kubernetes Secrets Store and Container Storage Interface (CSI) driver, used for providing secrets to applications that operate on Amazon EKS. You can now use ASCP to provide compatibility for legacy Kubernetes workloads that fetched secrets through the file system or etcd. Previously, you had to store your secrets as plaintext in configuration files, or use encryption with Kubernetes etcd to securely see and access secrets through the filesystem. You also had to write custom code to rotate secrets, resulting in a maintenance challenge. To create secure access to your pods, you had to split up clusters to control access, increasing the operational load.


Now, with ASCP, you can securely store and manage your secrets in Secrets Manager, and retrieve them through your applications that are running on Kubernetes, without the need to write custom code. You also have the added benefit of using AWS Identity and Access Management (IAM) and resource policies on your secret to limit and restrict access to specific Kubernetes pods inside a cluster. This tightly controls which secrets are accessible by which pods. If you have enabled the rotation reconciler feature of the Secret Store CSI driver, ASCP will work with it to retrieve the latest secret from the secret provider. After ASCP is installed and enabled, it helps ensure that your applications always receive the most current version of the secret when the pod starts, enabling you to benefit from the lifecycle management capabilities of Secrets Manager. So, you not only gain the benefit of a natively-integrated secrets management solution, but also the ability to provide configurations in a single provider.


In order to use the Secrets Store CSI driver, you have to create a SecretProviderClass custom resource. This provides driver configurations and provider-specific parameters to the CSI driver itself. The SecretProviderClass resource should have at least the following components:


The CSI driver can also sync your secrets with Kubernetes secrets. To do this, use the optional secretObjects field to define the desired state of your synced Kubernetes secret objects. The volume mount is required for the sync. The following is an example SecretProviderClass custom resource that will sync a secret from AWS Secrets Manager to a Kubernetes secret:


Custom resources can appear and disappear in a running cluster through dynamic registration,and cluster admins can update custom resources independently of the cluster itself.Once a custom resource is installed, users can create and access its objects usingkubectl, just as they do for built-in resourceslike Pods.


New as of January 19,2017!The Gutenprint project is pleased to announce Gutenprint 5.2.12. This release adds support for many new printers and other improvements over 5.2.11. Note that the Foomatic data generator and the Ghostscript IJS driver have been removed as CUPS support is ubiquitous and Foomatic is not needed with CUPS. This package is available in source form, and also in binary installer form for Macintosh OS X (10.6 and above; 10.5 and below are no longer supported). Youcan read the release notes and download it here.


New as of June 11, 2012! The Gutenprint project is pleased toannounce Gutenprint 5.2.8, a stable release of 5.2. The Canon driver has been significantly overhauled for this release, and output (and in some cases functionality) may be significantly different from previous releases. We expect to perform further work in future releases. Also, an additional eighteen new Epson printers has been added. This package is availablein source form, and also in binary installer formfor Macintosh OS X (10.3 and above). Youcan read the release notes and download it here.


Important Note: Minikube has networking issues with Virtualbox version 7.x. If you want to use minikube with Virtualbox, use version lower than 7.x. If you are a MAC M1 user, you cannot use Virtual Box versions lower than 7. So you can try QEMU or Docker Desktop as the backend driver.


If you are running for the first time, Minikube will download the base VM image to deploy kubernetes on Virtualbox. It will take a couple of minutes for minikube to start. On successful execution, you will see the following messages.


There are some advanced Kubernetes features that are available as minikube addons. For example, the Kubernetes dashboard & metrics server does not come default with the Minikube installation. But it is available as a minikube addon. Also, if you want to add a custom docker registry to minikube, you have to install the registry-creds addon and configure it.


By default, Minukube assigns 2 vCPU and 2048 memory. Often times we need extra CPU and memory than the default values set by minikube. To override default CPU and memory limits, you can explicitly specify the custom CPU and memory limits as shown below.


If you are on a corporate network, you might have to use a private docker registry with minikube. To use a custom private docker registry, you should install the registry-creds Minikube addon and configure the registry details.


If your application is not running inside a pod, or if spark.kubernetes.driver.pod.name is not set when your application isactually running in a pod, keep in mind that the executor pods may not be properly deleted from the cluster when theapplication exits. The Spark scheduler attempts to delete these pods, but if the network request to the API server failsfor any reason, these pods will remain in the cluster. The executor processes should exit when they cannot reach thedriver, so the executor pods should not consume compute resources (cpu and memory) in the cluster after your applicationexits.


The app jar file will be uploaded to the S3 and then when the driver is launched it will be downloadedto the driver pod and will be added to its classpath. Spark will generate a subdir under the upload path with a random nameto avoid conflicts with spark apps running in parallel. User could manage the subdirs created according to his needs.


Kubernetes Secrets can be used to provide credentials for aSpark application to access secured services. To mount a user-specified secret into the driver container, users can usethe configuration property of the form spark.kubernetes.driver.secrets.[SecretName]=. Similarly, theconfiguration property of the form spark.kubernetes.executor.secrets.[SecretName]= can be used to mount auser-specified secret into the executor containers. Note that it is assumed that the secret to be mounted is in the samenamespace as that of the driver and executor pods. For example, to mount a secret named spark-secret onto the path/etc/secrets in both the driver and executor containers, add the following options to the spark-submit command:


Kubernetes allows defining pods from template files.Spark users can similarly use template files to define the driver or executor pod configurations that Spark configurations do not support.To do so, specify the spark properties spark.kubernetes.driver.podTemplateFile and spark.kubernetes.executor.podTemplateFileto point to files accessible to the spark-submit process.


Pod template files can also define multiple containers. In such cases, you can use the spark propertiesspark.kubernetes.driver.podTemplateContainerName and spark.kubernetes.executor.podTemplateContainerNameto indicate which container should be used as a basis for the driver or executor.If not specified, or if the container name is not valid, Spark will assume that the first container in the listwill be the driver or executor container.


Your Kubernetes config file typically lives under .kube/config in your home directory or in a location specified by the KUBECONFIG environment variable. Spark on Kubernetes will attempt to use this file to do an initial auto-configuration of the Kubernetes client used to interact with the Kubernetes cluster. A variety of Spark configuration properties are provided that allow further customising the client configuration e.g. using an alternative authentication method.


The Spark driver pod uses a Kubernetes service account to access the Kubernetes API server to create and watch executorpods. The service account used by the driver pod must have the appropriate permission for the driver to be able to doits work. Specifically, at minimum, the service account must be granted aRole or ClusterRole that allows driverpods to create pods and services. By default, the driver pod is automatically assigned the default service account inthe namespace specified by spark.kubernetes.namespace, if no service account is specified when the pod gets created. 2ff7e9595c


 
 
 

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