I have a local Docker setup consisting of four containers: a flask web app, MySQL, Redis, and an RQ worker. The setup is essentially the same as Miguel Grinberg's Flask Mega-Tutorial. Here are links for his tutorial and his code.…
I am using kubernetes 1.17 on CentOS 7 with flannel:v0.11.0 and having issues with reachibility of my CLUSTER-IPs from the control plane. I installed and setup the cluster manually with kubeadm. This is basically my cluster: k8s-master-01 10.0.0.50/24 k8s-worker-01 10.0.0.60/24…
I'm currently working on a Lumen project where we are using Minikube as our dev environment. Our host machine's /Users/development/<project name> is mounted at /var/www/html and is working fine. However, I'm facing this Storage issue where file writes are not…
Hi everyone and thank you for your time! ^_^ I'm currently building a cluster with a small 64bit computer and some 32bit laptops. The 64 bit works fine with kubernetes, but I cannot install/compile kubernetes on the 32 bit machines.…
I know this question is asked many times, but all about docker, this time is crio. CentOS Linux release 7.6 CRI-O Version: 1.16.1 Kubernetes: v1.16.3 KubeAdm: v1.16.3 CoreDNS pods are in Error/CrashLoopBackOff state, and audit.log shows selinux prevents CoreDNS to…
Install a latest OpenShift CodeReady Container on CentOS VM, and then run a TCP server app written by Java on OpenShift. The TCP Server is listening on port 7777. Run app and expose it as a service with NodePort, seems…
ENVIRONMENT: Kubernetes version: v1.16.3 OS: CentOS 7 Kernel: Linux k8s02-master01 3.10.0-1062.4.3.el7.x86_64 #1 SMP Wed Nov 13 23:58:53 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux WHAT HAPPENED: I have a Wordpress Deployment running a container built from a custom Apache/Wordpress image. The…
I am using a Kubernetes Cronjob to run period database restores and post restore scripts which runs against the target environment which include tasks such as working with the database, redis, and file system. The issue I am facing is…
I am installing kubernetes using kubeadm on GCP Centos VM and I am getting the following error while running flannel step. Error: [root@master ~]# kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/a70459be0084506e4ec919aa1c114638878db11b/Documentation/kube-flannel.yml clusterrole.rbac.authorization.k8s.io/flannel created clusterrolebinding.rbac.authorization.k8s.io/flannel created serviceaccount/flannel created configmap/kube-flannel-cfg created unable to recognize "https://raw.githubusercontent.com/coreos/flannel/a70459be0084506e4ec919aa1c114638878db11b/Documentation/kube-flannel.yml":…
In a docker container I want to run k8s. When I run kubeadm join ... or kubeadm init commands I see sometimes errors like "modprobe: ERROR: ../libkmod/libkmod.c:586 kmod_search_moddep() could not open moddep file '/lib/modules/3.10.0-1062.1.2.el7.x86_64/modules.dep.bin'. nmodprobe: FATAL: Module configs not found…