chadmcrowell

######################################
######### DISABLING SERVICES #########
######################################
# view running services
systemctl | grep running

# view state of snapd service
systemctl status snapd

# stop the snapd service

chadmcrowell

# Deploy the AKS cluster
az aks create --resource-group myResourceGroup --name myAKSCluster \
  --node-count 1 --enable-addons monitoring --generate-ssh-keys \
  --service-principal "208-1029....." --client-secret "ba208-2......"
  
# Set the context for kubectl
az aks get-credentials --resource-group myaks-rg --name aksdeepdive

# Create a deployment
kubectl run nodeapp --image=aksdeepdive.azurecr.io/node:v1 \

chadmcrowell

# ASP.NET
# Build and test ASP.NET projects.
# Add steps that publish symbols, save build artifacts, deploy, and more:
# https://docs.microsoft.com/azure/devops/pipelines/apps/aspnet/build-aspnet-4

trigger:
- master

stages:
- stage: Build

chadmcrowell

# perform the commands from the following site:
# https://studyk8s.club/cka-warmup

# list all the api resources 
k api-resources

# help menu is your friend
k -h

# help menu goes many levels deep

chadmcrowell

#!/bin/bash

kind create cluster —image kindest/node:v1.28.0 --name kind128

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# use the following lab environment:
# https://studyk8s.club/cka-configmaps

# create the configmap 
cat << EOF > redis-configMap.yaml
apiVersion: v1
data:
  redis-config: |
    maxmemory: 2mb
    maxmemory-policy: allkeys-lru

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# perform the commands from this lab environment:
# https://studyk8s.club/cka-logging

# create a pod that will output logs to stdout
cat << EOF > pod-logging.yaml
apiVersion: v1
kind: Pod
metadata:
  name: pod-logging
spec:

chadmcrowell

# perform the command from this lab environment:
# https://studyk8s.club/cka-upgrade-k8s

# plan the upgrade
kubeadm upgrade plan

# upgrade the version of kubeadm
sudo apt-get update
sudo apt-get install -y apt-transport-https ca-certificates curl gpg
mkdir -p /etc/apt/keyrings/

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# perform the commands from the following lab environment:
# https://studyk8s.club/cka-new-user

# view the config
k config-view
cat ~/.kube/config
echo $KUBECONFIG
cat /etc/kubernetes/admin.conf

# list the cluster users

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# perform the commands from the following lab environment:
# https://studyk8s.club/cka-ectd-backup

# set etcdctl environment variable api to version 3
export ECTDCTL_API=3

# etcd help menu
etcdctl snapshot -h

# backup etcd