flrichar

docker exec etcd etcdctl get /registry --prefix=true --keys-only | grep -v ^$ | awk -F'/' '{ if ($3 ~ /cattle.io/) {h[$3"/"$4]++} else { h[$3]++ }} END { for(k in h) print h[k], k }' | sort -n > etcd-count-objecttype.txt

flrichar

#!/bin/bash

find /proc/*/fd -lname anon_inode:inotify |
   cut -d/ -f3 |
   xargs -I '{}' -- ps --no-headers -o '%p %U %c' -p '{}' |
   uniq -c |
   sort -nr
   
   ## check for max_user_watches and/or max_user_instances

flrichar

#!/bin/sh

POD=$(kubectl get pods --no-headers -n cattle-system -l app=rancher26x -o custom-columns=":metadata.name")
PVC=$(kubectl exec -n cattle-system $POD -- find /opt/local-path-provisioner/ -maxdepth 1 -type d -not -path /opt/local-path-provisioner/)

 printf "Found pod: %s\n" $POD
 printf "Found pvc: %s\n" $PVC

 kubectl cp cattle-system/$POD:/opt/local-path-provisioner ./temp-backups/
 ls ./temp-backups/pvc-*

flrichar

# install system upgrade controller
kubectl apply -f https://raw.githubusercontent.com/rancher/system-upgrade-controller/master/manifests/system-upgrade-controller.yaml

# First, label the target node
kubectl label node/k3d-zues-server-0 k3s-upgrade=true

# Then create the plan object in the cluster
kubectl apply -f upgrade_plan.yml

...

flrichar

Just some bits of wisdom ... whenever you use a SUSE os, tumbleweed, SLES, MicroOs, SLE Micro, LEAP,
first thing to do ... 

# systemctl disable --now NetworkManager
# zypper in wicked -y
# systemctl enable --now wicked

Replace NetworkManager with wicked & use normal /etc/sysconfig/network/ifcfg-* config files.
NM seems to be a desktop-first tool, IMHO, and wicked is very easy and simple to set up.

flrichar

 sed -i '/^GRUB_CMDLINE_LINUX/ s/"$/ systemd.unified_cgroup_hierarchy=0"/' /etc/default/grub
 transactional-update grub2-mkconfig -o /boot/grub2/grub.cfg

... 

flrichar

---
- hosts: bionic
  become: true
  vars_files: ~/YAML/vars/become.yml
  vars:
    today: "{{ lookup('pipe', 'date +%Y_%m%d') }}"
    cluster_home: "{{ lookup('pipe', 'pwd') }}"

  tasks:
  - name: find tmp/ logfiles

flrichar

#!/bin/sh

[[ -d ./fio-test ]] || mkdir fio-test
fio --rw=write --ioengine=sync --size=200m --bs=2300 --directory=./fio-test --name=io-test

flrichar

awk '{$1="";print $0 }' somepath/k8s/podlogs/k8s_rancher-audit-log_rancher-7fdc4d94b4-j4tf2_cattle-system_6f9f3596-8473-46c4-8d63-5b462f693fa4_0 | jql

## lop off first field, send rest to jql func/alias
## seen here -- https://gist.github.com/flrichar/7f6ebacfb4405988913e327d6ec5adc5
## ignoring non-json may be better -- https://gist.github.com/flrichar/163c7c2d296e8dfc7a14191ecd790803

flrichar

#!/bin/bash

if $(tmux has-session); then
  echo "Tmux has-sessions, exiting..."; exit
else 
  echo "Tmux no sessions, creating..."
fi

SCREENWIN=$(printf 'C-a c %0.s' {1..5})
TSESSION="tmux"