alexcpn

Scrum Master and Scrum Slaves,
Yellow all walls with notes,
Step aside and see with glee,
The horror on the janitor's face.
And from what his broom has spared, 
Pick a note to work on,
Stand-up straight before the master
To report or descope in glee.

alexcpn

In Specific Node

core@alex-k8s-2 ~ $ vi /mnt/data2/index.html
core@alex-k8s-2 ~ $ cat /mnt/data2/index.html 
'Hello from Kubernetes Local storage'

PV,PVC,Status

alexcpn

#!/bin/bash
# Generically install rook and test it out
: ${ROOK_BRANCH:=release-1.1}
TICK_CHAR='>'

mark_done () {
  file_done=$1
  date '+%s' > $file_done
  echo 'done' >> $file_done
}

alexcpn

Status: Downloaded newer image for nvidia/cuda:10.0-base
Wed Oct  9 08:11:31 2019       
+-----------------------------------------------------------------------------+
| NVIDIA-SMI 410.78       Driver Version: 410.78       CUDA Version: 10.0     |
|-------------------------------+----------------------+----------------------+
| GPU  Name        Persistence-M| Bus-Id        Disp.A | Volatile Uncorr. ECC |
| Fan  Temp  Perf  Pwr:Usage/Cap|         Memory-Usage | GPU-Util  Compute M. |
|===============================+======================+======================|
|   0  GeForce GTX 1070    Off  | 00000000:01:00.0  On |                  N/A |
| N/A   36C    P8     9W /  N/A |    306MiB /  8119MiB |      0%      Default |

alexcpn

Doc - https://github.com/operator-framework/operator-sdk/blob/master/doc/helm/user-guide.md

Chart https://hub.helm.sh/charts/bitnami/cassandra/3.4.3

operator-sdk new cassandra-helm-operator --type=helm --helm-chart=cassandra --helm-chart-repo=https://charts.bitnami.com/bitnami --verbose

Deploy CRD

`kubectl --insecure-skip-tls-verify --kubeconfig ~/keys/ee1-kubeconfig.config create -f deploy/crds/charts.helm.k8s.io_cassandras_crd.yaml

alexcpn

Good/Right links https://kubevirt.io/2019/How-To-Import-VM-into-Kubevirt.html

Step 1: Get your cluster up

(does not matter what it is minikube or real)

2108  minikube ip
2109  no_proxy="127.0.0.1,192.168.39.157"
2110  kubectl get pods

alexcpn

How To

https://gvisor.dev/docs/user_guide/quick_start/kubernetes/ Using Containerd

You can also setup Kubernetes nodes to run pods in gvisor using the containerd CRI runtime and the gvisor-containerd-shim. You can use either the io.kubernetes.cri.untrusted-workloadannotation or RuntimeClass to run Pods with runsc. You can find instructions here.

[centos@azuretest-1 root]$ kubectl get nodes -o wide NAME STATUS ROLES AGE VERSION INTERNAL-IP EXTERNAL-IP OS-IMAGE KERNEL-VERSION CONTAINER-RUNTIME azuretest-1 Ready master 40d v1.17.0 192.168.0.26 CentOS Linux 7 (Core) 3.10.0-957.27.2.el7.x86_64 docker://1.13.1 azuretest-2 Ready 40d v1.17.0 192.168.0.6 CentOS Linux 7 (Core) 3.10.0-957.27.2.el7.x86_64 docker://1.13.1

alexcpn

[root@green--1 ~]# cat cluster-green.yaml 
#################################################################################################################
# Define the settings for the rook-ceph cluster with settings that should only be used in a test environment.
# A single filestore OSD will be created in the dataDirHostPath.
# For example, to create the cluster:
#   kubectl create -f common.yaml
#   kubectl create -f operator.yaml
#   kubectl create -f cluster-test.yaml
#################################################################################################################
apiVersion: ceph.rook.io/v1

alexcpn

    apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: cassandra
  namespace: green
  labels:
    app: cassandra
spec:
  serviceName: cassandra
  replicas: 3

alexcpn

________________
> pulseaudio_ps_do
alex      1953  0.4  0.2 1332100 16788 ?       S<l  19:13   0:03 /usr/bin/pulseaudio --start --log-target=syslog
alex      5319  0.0  0.0  11468  1008 pts/0    S+   19:25   0:00 grep pulseaudio
________________
> which pulseaudio
/usr/bin/pulseaudio
________________
> pidof pulseaudio
1953