policy-control | browser extension to allow
kandi X-RAY | policy-control Summary
kandi X-RAY | policy-control Summary
A browser extension to allow first-party resources with exceptions!
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QUESTION
I have a Kubernetes cluster in vagrant (1.14.0) and installed calico.
I have installed the kubernetes dashboard. When I use kubectl proxy
to visit the dashboard:
ANSWER
Answered 2019-Mar-30 at 17:20you should define your hostname in /etc/hosts
QUESTION
In my IBM Cloud Private, I see several pause containers.
Can anyone explain the purpose of these? Normally, I can get to the bash shell in a running container but not the ones which are pause.
...ANSWER
Answered 2018-Feb-07 at 02:13The 'pause' container is a container which holds the network namespace for the pod. Kubernetes creates pause containers to acquire the respective pod’s IP address and set up the network namespace for all other containers that join that pod.
You can access below links for details.
https://groups.google.com/forum/#!topic/kubernetes-users/jVjv0QK4b_o
QUESTION
I want to write a wrapper on kubectl
to display only failed pods which means it should only display items whose Ready column values are not the same (i.e 0/1, 0/2, 1/2, 2/3,
etc.)
ANSWER
Answered 2019-Jun-19 at 18:23With GNU grep:
QUESTION
While trying to setup Cassandra database in a local Kubernetes cluster on a Mac OS (via Minikube), I am getting connection issues. It seems like Node.js is not able to resolve DNS settings correctly, but resolving via command line DOES work.
The setup is as following (simplified): Cassandra Service
...ANSWER
Answered 2019-Mar-17 at 22:44The Cassandra driver for Node.js uses resolve4
/resolve6
to do its dns lookup, which bypasses your resolv.conf
file. A program like ping uses resolv.conf to resolve 'cassandra' to 'cassandra.default.svc.cluster.local', the actual dns name assigned to your Cassandra service. For a more detailed explanation of name resolution in node.js see here.
The fix is simple, just pass in the full service name to your client:
QUESTION
I got an issue when I try to access an exposed kubernetes
service through browser. Below is my Environment.
created two ubuntu
EC2 instances(with all ports open in security group) and installed all kubernetes related tools like kubectl, kubeadm, docker, calico network.
created nginx
pod, scaled it to 3 and exposed it with type LoadBalancer. When I curl from master or worker node to the exposed nginx it works fine(with public or private ip). But it does not work if i curl from outside. The request is timed out. I tried to delete service and expose it again with NodePort. But still I could not access from outside. I ensured the security group allows ingress. Is there a way to debug why it cannot be accessed from outside or I am missing something
I am not running cloud controller manager
but kube-controller-manager
. Will this be an issue.?
below is the output of all kubernetes components
...ANSWER
Answered 2018-Sep-07 at 17:20How did you create your cluster? kubeadm
? You need some custom configs for your cluster to run with AWS. For example your kube-controller-manager
and kube-apiserver
need to have the option --cloud-provider=aws
. Same for all your kubelets.
I'd recommend using kops if you don't want to deal with this.
QUESTION
I have arrived at Android Studio 3.0.0 (from the stable channel) via 3.0.0-rcX (from the Canary channel).
When I start a brand new app and build it, the following code (inside the app) shows that the FLAG_TEST_ONLY flag is set.
...ANSWER
Answered 2017-Oct-31 at 22:00I ran headlong into this the other day. Based on my testing, this flag is added only if you run the app from Android Studio. Unfortunately, the APK filename doesn't hint at the problem. And, despite the documentation, this APK is only usable from Android Studio — I specifically was trying to install it via adb
, which is supposed to work, but doesn't.
If you build the APK in other ways, the flag should not be added. Specifically, I used the assembleRelease
Gradle task. I would expect the "Build APK(s)" menu option in Android Studio to work as well.
Given Instant Run and other potential shenanigans that Android Studio might be doing for direct-run builds versus other ones, I am not surprised that they added this flag. Personally, I would love a clearer option to opt out of all such shenanigans (and perhaps this flag), as I'm one of those weirdos who wants the app that I run from the IDE to be the same app that my users run.
FWIW, I have more background on this at this blog post.
QUESTION
I've just set up a single node Kubernetes cluster following the kubeadm guide to the letter. The cluster itself looks good, and all pods are running correctly:
...ANSWER
Answered 2017-Oct-12 at 22:54It is available at http://localhost:8001/api/v1/namespaces/kube-system/services/https:kubernetes-dashboard:/proxy/ with kubectl proxy
.
QUESTION
I have set up a single node K8S cluster using kubeadm by following the instructions here:
The cluster is up and all system pods are running fine:
...ANSWER
Answered 2017-May-12 at 06:50I have figured out the issue.. Thanks @jaxxstorm for helping me move towards in the right direction.
When I inspected provisioner pod logs I could see that its unable to access the API server to list StorageClass, PVC or PVs as it was created with default service account, which does not have the privileges to access these APIs.
The solution was to create a separate service account, pod security policy, cluster role and cluster role binding, as explained for NFS external provisioner here
After this I could see my PVC getting binded to the volume and hostpath showing the mount
QUESTION
I have
- kubernetes v1.6.0 setup by kubeadm v1.6.1
- calico setup by offical yaml
- iptables v1.6.0
- nodes are provided by AliCloud
Problem:
The cni network is not working. Any deployment can only be visited from the node where it is running. I doubt it is related with route table conflict/missing, because I have another cluster on Vultr Cloud working fine, with the same setup steps.
Cluster Info:
...ANSWER
Answered 2017-Apr-19 at 20:26I'm not sure what the problem is but here are a couple things to consider:
- I am not familiar with AliCloud but sometimes there are special consideration for some cloud providers. For example with GCE the IP-in-IP must be explicitly allowed, http://docs.projectcalico.org/v2.1/getting-started/kubernetes/installation/gce.
- I see the weave interface on your master so I'm wondering if weave could have left something around that is causing a problem.
- Also as was suggested in your issue https://github.com/projectcalico/cni-plugin/issues/314 you should check
calicoctl node status
on the nodes to see if BGP is working as expected.
QUESTION
I have Kubernetes installed on Container Linux by CoreOS alpha (1353.1.0) using hyperkube v1.5.5_coreos.0 using my fork of coreos-kubernetes install scripts at https://github.com/kfirufk/coreos-kubernetes.
I have two ContainerOS machines.
- coreos-2.tux-in.com resolved as 192.168.1.2 as controller
- coreos-3.tux-in.com resolved as 192.168.1.3 as worker
kubectl get pods --all-namespaces
returns
ANSWER
Answered 2017-Mar-13 at 18:06kube-dns has a readiness probe that tries resolving trough the Service IP of kube-dns. Is it possible that there is a problem with your Service network?
Check out the answer and solution here: kubernetes service IPs not reachable
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