kincl

dhcp-range=192.168.10.100,192.168.10.150
dhcp-option=option:router,192.168.10.3
dhcp-option=option:dns-server,192.168.10.3
log-dhcp

server=10.0.0.1 # upstream DNS
no-resolv

host-record=api.hattrick.redhat.com,192.168.10.98
host-record=api-int.hattrick.redhat.com,192.168.10.98

kincl

manual-cloud-credential-operator-iam-policy

This script will take a list of CredentialsRequest YAML files and output a combined IAM policy document

Usage

$ create_policy.py *.yaml

kincl

Disk Benchmarking

IOzone

Option	Documentation
-C	Show bytes transferred by each child in throughput testing. Useful if your operating system has any starvation problems in file I/O or in process management.
-w	Do not unlink temporary files when finished using them.
-c	Include close() in the timing calculations. This is useful only if you suspect that close() is broken in the operating system currently under test. It can be useful for NFS Version 3 testing as well to help identify if the nfs3_commit is working well.
-e	Include flush (fsync,fflush) in the timing calculations

kincl

kind: ImageSetConfiguration
apiVersion: mirror.openshift.io/v1alpha2

storageConfig:
  local:
    path: ./

mirror:
  platform:
    channels:

kincl

apiVersion: v1
kind: ConfigMap
metadata:
  name: python-http
  labels:
    app: python-http
data:
  app.py: |
    import logging
    from http.server import HTTPServer, BaseHTTPRequestHandler

kincl

step 1: get butane

Butane is a tool for converting our hand-written butane configuration into the "machine-read" ignition configuration.

Get butane from our OCP mirror

step 2: butane config

I pulled the chrony butane config from our docs

kincl

git clone https://github.com/kubernetes-sigs/nfs-subdir-external-provisioner.git
cd nfs-subdir-external-provisioner


sed -i.backup 's/nfs-client/nfs-storage/g' ./deploy/class.yaml
sed -i.backup 's/namespace:.*/namespace: nfs-storage/g' ./deploy/rbac.yaml
sed -i.backup 's/namespace:.*/namespace: nfs-storage/g' ./deploy/deployment.yaml

vi ./deploy/deployment.yaml
# Update NFS_SERVER and NFS_PATH values (4 edits required)

kincl

Forward Proxy with Apache HTTPd

Getting started

• Get httpd.conf

podman run --rm httpd:2.4 cat /usr/local/apache2/conf/httpd.conf > httpd.conf

kincl

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Module Docstring
"""

__author__ = "Your Name"
__version__ = "0.1.0"

import argparse

kincl

# -- Bootstrap kubelet on each node

cat <<EOF > /etc/yum.repos.d/kubernetes.repo
[kubernetes]
name=Kubernetes
baseurl=http://yum.kubernetes.io/repos/kubernetes-el7-x86_64
enabled=1
gpgcheck=1
repo_gpgcheck=1
gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg