liejuntao001

# Backup the Ceph Filesystem in Kubernetes. Code for https://liejuntao001.medium.com/file-system-backup-for-ceph-in-kubernetes-6c299c860ab3

---
apiVersion: batch/v1
kind: Job
metadata:
  name: rook-cephfs-backup-job
  namespace: rook-ceph
spec:
  template:

liejuntao001

Configuration snippets for Highly Available NFS cluster in Kubernetes, a cloud vendor independent storage solution

HAProxy config

frontend nfs
    bind 192.168.1.100:32049
    mode tcp
 option tcplog

liejuntao001

version: '3'
services:
  artifactory:
    ## others ommited
    networks:
      - proxy
      - artifactory
    labels:
      - "traefik.enable=true"
      - "traefik.docker.network=proxy"

liejuntao001

###########################################################
## this configuration was generated by JFrog Artifactory ##
###########################################################

<VirtualHost *:443>

    ProxyPreserveHost On
    ProxyAddHeaders off

    ServerName artifact.myjfrog.com

liejuntao001

kubectl -n <namespace> get pod | awk '{print $1}' | grep <pod name pattern> | tr  '\n' ' '  | xargs kubectl -n <namespace> delete pod

liejuntao001

# https://www.guidodiepen.nl/2016/05/transfer-docker-data-volume-to-another-host/
docker run --rm -v <SOURCE_DATA_VOLUME_NAME>:/from alpine ash -c "cd /from ; tar -cf - . " | ssh <TARGET_HOST> 'docker run --rm -i -v <TARGET_DATA_VOLUME_NAME>:/to alpine ash -c "cd /to ; tar -xpvf - " '

liejuntao001

https://github.com/nextcloud/server/issues/20617

Problem:
Share a folder to LDAP group A
Create a new user in LDAP and add to group A
The new user login to Nextcloud, the shared folder is not shown, nor in Shares->Pending shares
Check the db oc_share, there is no entry for the user
There is entry in oc_share for the folder to the group A, and accepted = 0

Fix:

liejuntao001

High CPU from kworker/0:x-kacpi_notify

Ubuntu 20.04 LTS

Update: this problem is fixed after I did "apt dist-upgrade" on 9/21/2020
Update again: Acutally not fixed. It happened again after unplug/plug the usb-c hub.

I recently got a USB-C Hub (Targus ACA958USZ). When it's plugged in, the laptop gives high cpu from process
I've found a few USB-C hubs from various manufactures with the same problem. I think they are of the same chipset.

liejuntao001

In cmd run as Administrator

1 Look for process ccSvchst.exe

> tasklist | findstr cc
ccSvcHst.exe                  5336 Services                   0     36,652 K
ccSvcHst.exe                 12696 Console                    2      6,400 K

2 Kill it

liejuntao001

#!/bin/bash

# need API_KEY as parameter
if [ ! $# -eq 3 ]
then
    echo "Usage: artifact_download_test.sh <API_KEY> <outer_loop> <inner_loop>"
    exit 1
fi

echo "Download testing started"