luckylittle

Project Title

A brief description of what this project does and who it's for

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luckylittle

How can I list all resources and custom resources in OpenShift

List all CRDs with CR name and Scope

oc get crd -o=custom-columns=NAME:.metadata.name,CR_NAME:.spec.names.singular,SCOPE:.spec.scope

List every single custom resources in the cluster

oc get $(oc get crd -o=custom-columns=CR_NAME:.spec.names.singular --no-headers | awk '{printf "%s%s",sep,$0; sep=","}') --ignore-not-found --all-namespaces -o=custom-columns=KIND:.kind,NAME:.metadata.name,NAMESPACE:.metadata.namespace

List every single resource in the cluster (custom and non-custom)

oc get $(oc api-resources --verbs=list -o name | awk '{printf "%s%s",sep,$0;sep=","}') --ignore-not-found --all-namespaces -o=custom-columns=KIND:.kind,NAME:.metadata.name,NAMESPACE:.metadata.namespace --sort-by='metadata.namespace'

luckylittle

#!/bin/bash

# Confirm the service is up:
oc get svc image-registry -n openshift-image-registry
# Create a ServiceAccount:
oc create sa pipeline
# Add image-builder role to the ServiceAccount:
oc adm policy add-role-to-user system:image-builder -z pipeline
# Add privileged Security Context Constraint (SCC) so you can run container inside container:
oc adm policy add-scc-to-user privileged -z pipeline

luckylittle

#!/bin/bash

# Ref: https://docs.openshift.com/container-platform/4.6/backup_and_restore/backing-up-etcd.html

etcd_node=`oc get pods -n openshift-etcd -l app=etcd -o=jsonpath='{.items[0].spec.nodeName}'`
ssh -i ~/.ssh/dmz-ocp4-rsa core@$etcd_node

id=$(sudo crictl ps --name etcdctl | awk 'FNR==2{ print $1}') && sudo crictl exec -it $id /bin/bash
etcdctl member list -w table
etcdctl endpoint health --cluster

luckylittle

# Iperf is a tool for network performance measurement and tuning. It is a cross-platform tool that can produce standardized
performance measurements for any network. Iperf has client and server functionality, and can create data streams to measure
the throughput between the two ends in one or both directions.

[user@server-1 ~]$ iperf3 -s –p 5001 -V --logfile iperf3_server2_20210118.log

1)	Linear
[user@client-a ~]$ iperf3 -c –p 5001 –V --logfile iperf3_client-a_lin_20210118.log server-1 –u -4 –Z
[user@client-b ~]$ iperf3 -c –p 5001 –V --logfile iperf3_client-b_lin_20210118.log server-1 –u -4 –Z

luckylittle

---
# Configuring garbage collection in OCP3, an example of appending to YAML in Ansible
# Lucian Maly - Red Hat, Inc.
- name: Configuring garbage collection in OCP3
  hosts: masters[0]
  gather_facts: no
  tasks:
    - name: 1.0 | ocp3-garbage-collection.yml | Download the content of a ConfigMap
      shell: |
        oc extract cm/node-config-compute --to=/root --confirm=true -n openshift-node

luckylittle

---
# Configuring ETCD monitoring in OCP3
# Lucian Maly - Red Hat, Inc.
- name: Configuring etcd monitoring
  hosts: masters[0]
  gather_facts: no
  tasks:
    - name: 1.0 | ocp3-etcd-monitoring.yml | Fetch certificates from one master node to the local machine
      fetch:
        src: /etc/etcd/ca/{{ item }}

luckylittle

#!/bin/zsh

for dir in */
do
  [[ -d "$dir" ]] || break
  echo "${dir}"
  cd "${dir}" || exit
  mkdir Sample
  python ~/.local/bin/srr.py ./*.srr -y
  python ~/.local/bin/srs.py ./*.srs ./*.mkv -y

luckylittle

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\PasswordLess\Device]
"DevicePasswordLessBuildVersion"=dword:00000000

luckylittle

# General Aliases
alias beep='speaker-test -l 1 -t wav -w Beep.wav'
alias c="code ."
alias cdd='cd ~/Downloads'
alias chksfv='cksfv -C /home/lmaly/Downloads/ -qr'
#alias d="docker"
alias h="helm"
alias sudo='sudo '
alias v='vault'
alias vi="/usr/bin/vim"