plembo

Create the default KVM storage pool for images

Some distributions create the defaut KVM (libvirtd) storage pool for images when they install KVM, others do this upon the creation of the first KVM guest. Creating the default pool from scratch is pretty straightforward. Here's how to do it with virsh.

First verify there is no existing default pool:

$ virsh pool-list --all
 Name      State    Autostart
-----------------------------

pauloapi

def get_lambda_event_source(self, event: dict):
    if 'pathParameters' in event and 'proxy' in event['pathParameters']:
        return 'api_gateway_aws_proxy'
    if 'requestContext' in event and 'resourceId' in event['requestContext']:
        return 'api_gateway_http'
    elif 'Records' in event and len(event['Records']) > 0 and 'eventSource' in event['Records'][0] and event['Records'][0]['eventSource'] == 'aws:s3':
        return 's3'
    elif 'Records' in event and len(event['Records']) > 0 and 'EventSource' in event['Records'][0] and event['Records'][0]['EventSource'] == 'aws:sns':
        return 'sns'

strongjz

Tools

• Kops https://github.com/kubernetes/kops/blob/master/docs/README.md
• Kubectl https://kubernetes.io/docs/tasks/tools/install-kubectl/
• kubespy https://blog.pulumi.com/kubespy-trace-a-real-time-view-into-the-heart-of-a-kubernetes-service
• kops https://icicimov.github.io/blog/virtualization/Kubernetes-Cluster-in-AWS-with-Kops/

Presentations

Ryanb58

>>> docker exec -it CONTAINERID /bin/sh
/app # telnet
/bin/sh: telnet: not found

/app # apk update
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/main/x86_64/APKINDEX.tar.gz
fetch http://dl-cdn.alpinelinux.org/alpine/v3.7/community/x86_64/APKINDEX.tar.gz
v3.7.0-243-gf26e75a186 [http://dl-cdn.alpinelinux.org/alpine/v3.7/main]
v3.7.0-229-g087f28e29d [http://dl-cdn.alpinelinux.org/alpine/v3.7/community]

rstacruz

Getting Docker

Docker is available for Linux, MacOS, and Windows.

MacOS

Docker for Mac is best installed with Homebrew and Homebrew Cask. For other ways to install on MacOS, see Install Docker for Mac in Docker's docs.

brew cask install docker # Install Docker

pydevops

references

• https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands
• how it works
• https://medium.com/@bingolbalihasan/how-does-kubectl-work-writing-custom-kubectl-commands-da86e5d49c74

cheatsheet & tips

• https://kubernetes.io/docs/user-guide/kubectl-cheatsheet/
• https://github.com/devoriales/kubectl-cheatsheet
• https://learncloudnative.com/blog/2022-05-10-kubectl-tips
• https://itnext.io/tips-tricks-for-cka-ckad-and-cks-exams-cc9dade1f76d

BretFisher

# first install pygmentize to the mac OS X or macOS system with the built-in python
sudo easy_install Pygments

# then add alias to your ~/.bash_profile or ~/.bashrc or ~/.zshrc etc.
alias pcat='pygmentize -f terminal256 -O style=native -g'

JBlond

Regular Colors

Value	Color
\e[0;30m	Black
\e[0;31m	Red
\e[0;32m	Green
\e[0;33m	Yellow
\e[0;34m	Blue
\e[0;35m	Purple

svmotha

import boto3

class tableCreate(object):
    def __init__(self, **kwargs):
        self.__dict__.update(kwargs)

    # Query client and list_tables to see if table exists or not
    def queryCreate(self):
        # Instantiate your dynamo client object
        client = boto3.client('dynamodb')

xueshanf

#!/bin/bash
# Input:  ./extract_kubecfg_cert.sh my-cluster-name username
# Output: ./my-cluster-name-ca.crt ./username.crt ./username.key

# Exit on error
abort(){
  echo $1 && exit 1
}

# Prerequistes