kubernetes Questions

Kubernetes Pod not able to contact another pod when Namespace specified – CentOS

November 18, 2019
Tanc
2 Answers

I'm using Kubernetes on a centOS 7. Client Version: version.Info{Major:"1", Minor:"16", GitVersion:"v1.16.3", GitCommit:"b3cbbae08ec52a7fc73d334838e18d17e8512749", GitTreeState:"clean", BuildDate:"2019-11-13T11:23:11Z", GoVersion:"go1.12.12", Compiler:"gc", Platform:"linux/amd64"} Server Version: version.Info{Major:"1", Minor:"16", GitVersion:"v1.16.3", GitCommit:"b3cbbae08ec52a7fc73d334838e18d17e8512749", GitTreeState:"clean", BuildDate:"2019-11-13T11:13:49Z", GoVersion:"go1.12.12", Compiler:"gc", Platform:"linux/amd64"} I did deploy a Nginx pod on a "production" namespace by…

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InnoDB: Header page consists of zero bytes in datafile: ./ibdata1 – CentOS

October 18, 2019
ImranRazaKhan
2 Answers

I am deploying MySQL on openshift (kubernetes) but getting below error ---> 10:01:34 Initializing database ... ---> 10:01:34 Running /opt/rh/rh-mysql57/root/usr/libexec/mysqld --initialize --datadir=/var/lib/mysql/data --ignore-db-dir=lost+found ---> 10:01:35 Starting MySQL server with disabled networking ... ---> 10:01:35 Waiting for MySQL to start ...…

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How install Ceph on a kubernetes cluster – CentOS

October 18, 2019
GrenierJ
2 Answers

we want to use Ceph but we want to use Docker and Kubernetes to deploy new instances of Ceph quickly. I tried to use the default ceph docker hub: ceph/daemon-base. But I didn't work. I tried to use the ceph-container.…

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kubectl logs command does not appear to respect –limit-bytes option – CentOS

October 7, 2019
J.Doe
2 Answers

When i issue kubectl logs MY_POD_NAME --limit-bytes=1 command, the --limit-bytes option is ignored and i get all the pod's logs. My kubernetes version is 1.15.3 Trying to understand why that would be. When i issue the same command in GKE…

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Kubernetes dial tcp myIP:10250: connect: no route to host – CentOS

October 7, 2019
cryptoparty
2 Answers

I got Kubernetes Cluster with 1 master and 3 workers nodes. calico v3.7.3 kubernetes v1.16.0 installed via kubespray https://github.com/kubernetes-sigs/kubespray Before that, I normally deployed all the pods without any problems. I can't start a few pod (Ceph): kubectl get all…

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k8s running inside CentOS docker container running on my macOS host – swap problems?

October 3, 2019
k1eran
3 Answers

I want to run Kubernetes v1.13.5 unit-tests inside a CentOS docker container running on a macOS host. I get errors trying to run kubeadm as it doesn't like having swap enabled. 1) I tried kubeadm init --fail-swap-on=false but get Error:…

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Pod deployment issue and query over Kubernetes cluster – CentOS

October 1, 2019
Jagdish0886
2 Answers

I have created a k8s cluster and network, using 1 master and 2 nodes. However during pod (nginx) deployment, the deployment happens only on one server i.e. node1 and not on other server i.e. node2, as the result shows below…

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unmarshalerDecoder: quantities must match the regular expression – CentOS

September 22, 2019
Dolphin
2 Answers

When I am installing CoreDNS using this command ,by the way,the OS version is: CentOS 7.6 and Kubernetes version is: v1.15.2: kubectl create -f coredns.yaml The output is: [root@ops001 coredns]# kubectl create -f coredns.yaml serviceaccount/coredns created clusterrole.rbac.authorization.k8s.io/system:coredns created clusterrolebinding.rbac.authorization.k8s.io/system:coredns created…

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Kubernetes dashboard – CentOS

September 21, 2019
justdataz
2 Answers

I have been able to successfully setup kubernetes on my Centos 7 server. On trying to get the dashboard working after following the documentation, running 'kubectl proxy' it attempts to run using 127.0.0.1:9001 and not my server ip. Do this…

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kubelet Error while processing event /sys/fs/cgroup/memory/libcontainer_10010_systemd_test_default.slice – CentOS

September 7, 2019
sfgroups
2 Answers

I have setup Kubernetes 1.15.3 cluster on Centos 7 OS using systemd cgroupfs. on all my nodes syslog started logging this message frequently. How to fix this error message? kubelet: W0907 watcher.go:87 Error while processing event ("/sys/fs/cgroup/memory/libcontainer_10010_systemd_test_default.slice": 0x40000100 == IN_CREATE|IN_ISDIR):…

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