k8s | Flekszible based kubernetes manfiest templates for Apache

Β by Β  flokkr Shell Version: Current License: Apache-2.0

kandi X-RAY | k8s Summary

kandi X-RAY | k8s Summary

k8s is a Shell library typically used in Big Data, Spark, Hadoop applications. k8s has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Apache bigdata projects on kubernetes ===. [flekszible] based cluster definitions for Apache bigdata projects to run in Kubernetes. The main directories in the repository contain templates which can be imported by flekszible. The examples folder contains real kubernetes cluster definitions (plain kubernetes resources files) which are generated by flekszible and the required configuration files to regenerate the files.
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            kandi-support Support

              k8s has a low active ecosystem.
              It has 9 star(s) with 3 fork(s). There are 1 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 0 open issues and 1 have been closed. On average issues are closed in 421 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of k8s is current.

            kandi-Quality Quality

              k8s has no bugs reported.

            kandi-Security Security

              k8s has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              k8s is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              k8s releases are not available. You will need to build from source code and install.

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            k8s Key Features

            No Key Features are available at this moment for k8s.

            k8s Examples and Code Snippets

            No Code Snippets are available at this moment for k8s.

            Community Discussions

            QUESTION

            kubectl cluster-info why is running on control plane and not master node
            Asked 2021-Jun-15 at 12:59

            Why kubectl cluster-info is running on control plane and not master node And on the control plane it is running on a specific IP Address https://192.168.49.2:8443 and not not localhost or 127.0.0.1 Running the following command in terminal:

            1. minikube start --driver=docker

            πŸ˜„ minikube v1.20.0 on Ubuntu 16.04 ✨ Using the docker driver based on user configuration πŸŽ‰ minikube 1.21.0 is available! Download it: https://github.com/kubernetes/minikube/releases/tag/v1.21.0 πŸ’‘ To disable this notice, run: 'minikube config set WantUpdateNotification false'

            πŸ‘ Starting control plane node minikube in cluster minikube 🚜 Pulling base image ... > gcr.io/k8s-minikube/kicbase...: 358.10 MiB / 358.10 MiB 100.00% 797.51 K ❗ minikube was unable to download gcr.io/k8s-minikube/kicbase:v0.0.22, but successfully downloaded kicbase/stable:v0.0.22 as a fallback image πŸ”₯ Creating docker container (CPUs=2, Memory=2200MB) ... 🐳 Preparing Kubernetes v1.20.2 on Docker 20.10.6 ... β–ͺ Generating certificates and keys ... β–ͺ Booting up control plane ... β–ͺ Configuring RBAC rules ... πŸ”Ž Verifying Kubernetes components... β–ͺ Using image gcr.io/k8s-minikube/storage-provisioner:v5 🌟 Enabled addons: storage-provisioner, default-storageclass πŸ„ Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default

            1. kubectl cluster-info

            Kubernetes control plane is running at https://192.168.49.2:8443 KubeDNS is running at https://192.168.49.2:8443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy

            To further debug and diagnose cluster problems, use 'kubectl cluster-info dump'.

            ...

            ANSWER

            Answered 2021-Jun-15 at 12:59

            The Kubernetes project is making an effort to move away from wording that can be considered offensive, with one concrete recommendation being renaming master to control-plane. In other words control-plane and master mean essentially the same thing, and the goal is to switch the terminology to use control-plane exclusively going forward. (More info in this answer)

            The kubectl command is a command line interface that executes on a client (i.e your computer) and interacts with the cluster through the control-plane. The IP address you are seing through cluster-info is the IP address through which you reach the control-plane

            Source https://stackoverflow.com/questions/67986133

            QUESTION

            Cannot bind PersistentVolumeClaim to PersistentVolume in namespace
            Asked 2021-Jun-15 at 09:52

            I am trying to install jenkins on my kubernetes cluster under jenkins namespace. When I deploy my pv and pvc, the pv remains available and does not bind to my pvc.

            Here is my yamls:

            ...

            ANSWER

            Answered 2021-Jun-15 at 09:52

            Based on the storage class spec, I think the problem is the volumeBindingMode being set as WaitForFirstConsumer which means the PV will remain unbound until there is a Pod to consume it.

            You can change it Immediate to allow the PV to be bound immediately without requiring to create a Pod.

            You can read about the different volume binding modes in detail in the docs.

            Source https://stackoverflow.com/questions/67972725

            QUESTION

            How does Lens (Kubernetes IDE) get direct shell access to Kubernetes nodes without ssh keys?
            Asked 2021-Jun-15 at 09:08

            I couldn't find an equivalent k8s cli command to do something like this, nor any ssh keys stored as k8s secrets. It also appears to do this in a cloud-agnostic fashion.

            Is it just using a k8s pod with special privileges or something?

            Edit: oops, it's open-source. I'll investigate and update this question accordingly

            ...

            ANSWER

            Answered 2021-Jun-15 at 09:08

            Posting this community wiki answer to give more visibility on the comment that was made at a github issue that addressed this question:

            Lens will create nsenter pod to the selected node

            Source https://stackoverflow.com/questions/67976705

            QUESTION

            How to inject vault and consume hashicorp vault secrets?
            Asked 2021-Jun-14 at 23:58

            I don't understand how to apply hashicorp vault to inject secrets in my app.

            The following link shows a couple of examples https://www.vaultproject.io/docs/platform/k8s/injector/examples

            I used the environment variables example from the same post. But it seems not all the env variables are injected into the app. For instance, ENVs in one of my layouts don't seem to get applied meta property="og:title" content="#{ENV['NAME']}" - shows no value. But the app is running, /vault/secrets/... has files with contents.

            Here's a part of the Deployment config of my app.

            When there're multiple secrets/templates, the Deployment is going to look ugly.

            There's absolutely no description for configmap example but this is probably what I should be using instead of env.

            ...

            ANSWER

            Answered 2021-Apr-18 at 18:36

            If you want to inject the vault secret into the deployment pod what you can do

            There is one great project on Github Vault-CRD in java: https://github.com/DaspawnW/vault-crd

            Vault CRD for sharing Vault Secrets with Kubernetes. It injects & sync values from Vault to Kubernetes secret. You can use these secrets as environment variables inside pod.

            the flow goes something like : vault to Kubernetes secret > and that secrets get injected into deployment using YAML same as configmap

            apart from this there is also another nice method of sidecar pattern.

            for that, there is a very nice tutorial: https://github.com/hashicorp/hands-on-with-vault-on-kubernetes

            another one : https://www.hashicorp.com/blog/injecting-vault-secrets-into-kubernetes-pods-via-a-sidecar

            Source https://stackoverflow.com/questions/67151027

            QUESTION

            Use Kubernetes Ingress with dynamic parameters to web API
            Asked 2021-Jun-14 at 21:07

            I am having a problem using Kubernetes Ingress with a ASP.NET core web API.

            Lets say I have a web API with three controllers (simplified code to demonstrate three routes /, /ep1, /ep2):

            ...

            ANSWER

            Answered 2021-Jun-14 at 18:57

            Routing within the app should be handled by the app. So, there should be no need to define dynamic paths. Try this.

            Source https://stackoverflow.com/questions/67975176

            QUESTION

            PVCs not created at all after deletion, when using Retail reclaim policy in corresponding StorageClass
            Asked 2021-Jun-14 at 15:38

            I am using the ECK operator, to create an Elasticsearch instance.

            The instance uses a StorageClass that has Retain (instead of Delete) as its reclaim policy.

            Here are my PVCs before deleting the Elasticsearch instance

            ...

            ANSWER

            Answered 2021-Jun-14 at 15:38

            with the hope that due to the Retain policy, the new pods (i.e. their PVCs would bind to the existing PVs (and data wouldn't get lost)

            It is explicitly written in the documentation that this is not what happens. the PVs are not available for another PVC after delete of a PVC.

            the PersistentVolume still exists and the volume is considered "released". But it is not yet available for another claim because the previous claimant's data remains on the volume.

            Source https://stackoverflow.com/questions/67971628

            QUESTION

            how to run simple minikube inside docker?
            Asked 2021-Jun-14 at 06:46

            I'm trying to follow instructions on this guide but under docker.

            I set up a folder with:

            ...

            ANSWER

            Answered 2021-Jun-14 at 06:46

            If you want to use kubernetes inside a docker container my suggestion is to use k3d .

            k3d is a lightweight wrapper to run k3s (Rancher Lab’s minimal Kubernetes distribution) in docker.k3d makes it very easy to create single- and multi-node k3s clusters in docker, e.g. for local development on Kubernetes.

            You can Download , install and use it directly with Docker. For more information you can follow the official documentation from https://k3d.io/ .

            To get the list of pods you dont' need to create a k8s cluster inside a docker container . what you need is a config file for any k8s cluster . β”œβ”€β”€ Dockerfile β”œ-- config └── main.py 0 directories, 3 files

            after that :

            Source https://stackoverflow.com/questions/67956247

            QUESTION

            AWS Load Balancer Controller successfully creates ALB when Ingress is deployed, but unable to get DNS Name in CDK code
            Asked 2021-Jun-13 at 20:44

            I originally posted this question as an issue on the GitHub project for the AWS Load Balancer Controller here: https://github.com/kubernetes-sigs/aws-load-balancer-controller/issues/2069.

            I'm seeing some odd behavior that I can't trace or explain when trying to get the loadBalacnerDnsName from an ALB created by the controller. I'm using v2.2.0 of the AWS Load Balancer Controller in a CDK project. The ingress that I deploy triggers the provisioning of an ALB, and that ALB can connect to my K8s workloads running in EKS.

            Here's my problem: I'm trying to automate the creation of a Route53 A Record that points to the loadBalancerDnsName of the load balancer, but the loadBalancerDnsName that I get in my CDK script is not the same as the loadBalancerDnsName that shows up in the AWS console once my stack has finished deploying. The value in the console is correct and I can get a response from that URL. My CDK script outputs the value of the DnsName as a CfnOutput value, but that URL does not point to anything.

            In CDK, I have tried to use KubernetesObjectValue to get the DNS name from the load balancer. This isn't working (see this related issue: https://github.com/aws/aws-cdk/issues/14933), so I'm trying to lookup the Load Balancer with CDK's .fromLookup and using a tag that I added through my ingress annotation:

            ...

            ANSWER

            Answered 2021-Jun-13 at 20:23

            I think that the answer is to use external-dns.

            ExternalDNS allows you to control DNS records dynamically via Kubernetes resources in a DNS provider-agnostic way.

            Source https://stackoverflow.com/questions/67955013

            QUESTION

            Kubernetes Container runtime network not ready
            Asked 2021-Jun-11 at 20:41

            I installed a Kubernetes cluster of three nodes, the control node looked ok, when I tried to join the other two nodes the status for both of is: Not Ready

            On control node:

            ...

            ANSWER

            Answered 2021-Jun-11 at 20:41

            After seeing whole log line entry

            Source https://stackoverflow.com/questions/67902874

            QUESTION

            GKE Internal Ingress for Headless Service
            Asked 2021-Jun-11 at 11:12

            I'm trying to create an internal ingress for inter-cluster communication with gke. The service that I'm trying to expose is headless and points to a kafka-broker on the cluster.

            However when I try to load up the ingress, it says it cannot find the service?

            ...

            ANSWER

            Answered 2021-Jun-11 at 11:12

            Setting up ingress for internal load balancing requires you to configure a proxy-only subnet on the same VPC used by your GKE cluster. This subnet will be used for the load balancers proxies. You'll also need to create a fw rule to allow traffic as well.

            Have a look at the prereqs for ingress and then look here for info on how to setup the proxy-only subnet for your VPC.

            Source https://stackoverflow.com/questions/67920132

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