Jon Keam jkeam

Installing The OpenShift Advanced Cluster Management (ACM) Observability

This turns on the observability component of ACM. The common use case is for virtualization metrics.

Install ACM using the Ecosystem -> Software Catalog and accept all defaults, wait until done.

	#!/bin/bash

	# update

	sudo dnf upgrade --refresh

	sudo dnf system-upgrade download --releasever=44 --allowerasing

	sudo dnf5 offline reboot

	name: Local Config
	version: 1.0.0
	schema: v1
	models:
	- name: Granite
	provider: openai
	model: granite-3-1-8b-instruct
	apiKey: sk-abc123def456ghi789jkl012mno345pqr678stu901vwx234
	apiBase: "http://granite-3-1-8b-instruct-predictor.ic-shared-llm.svc.cluster.local:8080/v1"

	#!/bin/bash

	# get certs
	openssl s_client -showcerts -connect YOUR_REG.COM:8443 </dev/null

	# see subject and issuer
	openssl x509 -noout -subject -issuer
	<PASTE YOUR CERT HERE>

	#!/bin/bash

	# check
	blkid /dev/<disk>
	wipefs -n /dev/<disk>

	# wipe
	wipefs -a /dev/<disk>
	sgdisk --zap-all /dev/<disk>
	dd if=/dev/zero of=/dev/<disk> bs=1M count=100 oflag=direct,dsync

	Visualization in OCP Demo

	1. Virtual Machine - click on specific virtual machine
	CPU, Memory, Storage, Network


	2. Click Graphs and talk about PromQL and refresh timer

	winweb01
	database

	#!/bin/bash

	# Prerequisites:
	# doctl, helm, kubectl

	doctl kubernetes options sizes

	# Create cluster
	doctl kubernetes cluster create lfe-cluster \
	--region nyc1 \

	#!/bin/bash

	echo "Start the cluster before this date"
	oc -n openshift-kube-apiserver-operator get secret kube-apiserver-to-kubelet-signer -o jsonpath='{.metadata.annotations.auth\.openshift\.io/certificate-not-after}'
	echo ""

	echo "Marking nodes as unscheduable"
	for node in $(oc get nodes -o jsonpath='{.items[*].metadata.name}'); do
	echo ${node}
	oc adm cordon ${node}

	schemaVersion: 2.2.0
	metadata:
	generateName: tl3test1
	components:
	- name: development-tooling
	container:
	image: registry.redhat.io/devspaces/udi-rhel9@sha256:bb5baa05f316944ca6df56ad718c368b248e8f4b2488551549b1b13c4ed5844b
	env:
	- name: QUARKUS_HTTP_HOST
	value: 0.0.0.0