kube | Universal React Express middleware package | Frontend Framework library
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kandi X-RAY | kube Summary
Universal React Express middleware package. A universal react dev environment provided through npm install.
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Trending Discussions on kube
QUESTION
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:
- minikube start --driver=docker
😄 minikube v1.20.0 on Ubuntu 16.04 ✨ Using the docker driver based on user configuration 🎉 minikube 1.21.0 is available! Download it: https://github.com/kubernetes/minikube/releases/tag/v1.21.0 💡 To disable this notice, run: 'minikube config set WantUpdateNotification false'
👍 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 🔥 Creating docker container (CPUs=2, Memory=2200MB) ... 🐳 Preparing Kubernetes v1.20.2 on Docker 20.10.6 ... ▪ Generating certificates and keys ... ▪ Booting up control plane ... ▪ Configuring RBAC rules ... 🔎 Verifying Kubernetes components... ▪ Using image gcr.io/k8s-minikube/storage-provisioner:v5 🌟 Enabled addons: storage-provisioner, default-storageclass 🏄 Done! kubectl is now configured to use "minikube" cluster and "default" namespace by default
- 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 12:59The 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
QUESTION
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 20:23I 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.
QUESTION
kubectl version
Client Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.0", GitCommit:"cb303e613a121a29364f75cc67d3d580833a7479", GitTreeState:"clean", BuildDate:"2021-04-08T21:16:14Z", GoVersion:"go1.16.3", Compiler:"gc", Platform:"darwin/amd64"}
Server Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.1", GitCommit:"5e58841cce77d4bc13713ad2b91fa0d961e69192", GitTreeState:"clean", BuildDate:"2021-05-12T14:12:29Z", GoVersion:"go1.16.4", Compiler:"gc", Platform:"linux/amd64"}
...ANSWER
Answered 2021-Jun-12 at 02:54I notice that you're connecting to https://mydomain.dev
, but passing a host header for a different domain. My guess would be that curl
is sending an SNI request for a mydomain.dev
cert; since networking-ns-cert
will acquire wildcard certs for *..my domain.dev
, it's possible that the server doesn't have a cert matching the SNI request, and closes the TCP connection.
Try using the -kvv
options to curl
(instead of -v
) to print more verbose debugging information and bypass some SSL errors. Since you have DNS and certs set up, I'd try:
curl -kvv https://helloworld-go.default.mydomain.dev
QUESTION
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 20:41After seeing whole log line entry
QUESTION
I am trying to install my rancher(RKE) kubernetes cluster bitnami/mongodb-shared . But I couldn't create a valid PV for this helm chart.
The error that I am getting: no persistent volumes available for this claim and no storage class is set
This is the helm chart documentation section about PersistenceVolume: https://github.com/bitnami/charts/tree/master/bitnami/mongodb-sharded/#persistence
This is the StorageClass and PersistentVolume yamls that I created for this helm chart PVCs':
...ANSWER
Answered 2021-Jun-07 at 15:00The chart exposes two parameters that allow you to choose the StorageClass you want to use for your PVC(s) (otherwise it will use the 'default' one):
configsvr.persistence.storageClass
shardsvr.persistence.storageClass
Find more information in the Parameters section of the README.md
So basically you need to install the chart setting these parameters accordingly.
QUESTION
Say I have multiple namespaces on a kube cluster and each namespace has a RMQ container, and these RMQ containers are spread throughout a few nodes, is there a way to deploy one metricbeat pod (preferably as a daemonset) per node to monitor these RMQ containers? What's the best practice regarding using Metricbeat for monitoring, do you need one metricbeat per container? Thanks.
...ANSWER
Answered 2021-Jun-09 at 13:19Metricbeat is installed as a daemonset to ensure that it can get all the node stats across all namespaces. So, you just need one instance of Metricbeat on every node in your k8s cluster
More details: https://www.elastic.co/guide/en/beats/metricbeat/current/running-on-kubernetes.html
QUESTION
I want to be able to use kubectl
commands on my master ec2 instance from my local machine without ssh. I tried copying .kube
into my local but the problem is that my kubeconfig
is using the private network and so when i try to run kubectl
from my local I can not connect.
Here is what I tried:
...ANSWER
Answered 2021-Jun-08 at 11:37You have to change clusters.cluster.server
key in your kubectl config with externally accessible IP.
For this your VM with master node must have external IP assigned.
Depending on how you provisioned your cluster, you may need to add additional name to Kubernetes API server certificate
With kubeadm
you can just reset cluster with
QUESTION
I have the minikube
environment as the following: -
- Host OS:
CentOS Linux release 7.7.1908 (Core)
- Docker:
Docker Engine - Community 20.10.7
- minikube:
minikube version: v1.20.0
I would like to add some additional host mapping (5+ IP and name) to the /etc/hosts
inside the minikube
container. Then I use the minikube ssh
to enter to the shell and try to echo "172.17.x.x my.some.host" >> /etc/hosts
. There is an error as -bash: /etc/hosts: Permission denied
since the user who login to this shell is a docker
, not a root
.
I also found that at the host machine there is a docker container named minikube
running, by using the docker container ls
. Even I can go to this container with root
by using docker exec -it -u root minikube /bin/bash
. I understand that it is a kind of tweak and may be a bad practice. Especially it is too much tasks.
Regarding to the docker
and docker-compose
which provides the --add-host
and extra_hosts
respectively to add hostname mappings, Does the minikube
provide it? Is there any good practice to achieve this within the minikube
and/or system administrator point-of-view good practice?
After echo 172.17.x.x my.some.host > ~/.minikube/files/etc/hosts
and start the minikube
, there are some error as the following: -
ANSWER
Answered 2021-Jun-09 at 09:12Minikube has a built-in sync mechanism that could deploy a desired /etc/hosts with the following example:
QUESTION
ANSWER
Answered 2021-Jun-05 at 13:17You don't need to provide
QUESTION
I'm trying to deploy kubeflow on and OVH managed k8 cluster.
After the initial setup of the k8 cluster, I ran the following commands to install kubeflow, as suggested here:
...ANSWER
Answered 2021-Jun-07 at 12:38Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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