murarisumit

Docker cheatsheet, usually has one-lines to delete containers.

• Create a image from docker file: docker build -t image-name .
• Run a container: docker run -it --name container-name image-name:latest
• Run docker in backgroud: docker run --name container-name --hostname container-hostname -t -d container-name:latest
• Connect to container: docker exec -it container_name bash
• Remove all Exited containers: sudo docker ps -a | grep Exit | cut -d ' ' -f 1 | xargs sudo docker rm
• Remove all dangling images: docker rmi $(docker images -f 'dangling=true' -q)

murarisumit

#!/bin/bin/env python
import subprocess


#Exeternal Command with args
DPKG = ['dpkg', '-l']
# Execute the command
dpkg_process = subprocess.Popen(DPKG, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
# Pipe output of dpkg to grep
grep_process = subprocess.Popen(['grep', 'lsof'], stdin=dpkg_process.stdout, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

murarisumit

#!/bin/bin/env python
import subprocess


#Exeternal Command with args
DPKG = ['dpkg', '-l']
# Execute the command
dpkg_process = subprocess.Popen(DPKG, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
# Wait till process to exit
out, error = dpkg_process.communicate()

murarisumit

::Skip file with name .pdb, someFile.xml and .config$

msdeploy.exe -verb:sync -source:contentPath=SourcePath -dest:DestPath -skip:objectName=filepath,absolutepath="^*\.pdb$" -skip:objectName=filepath,absolutepath="^*\someFile.xml$" -skip:objectName=filepath,absolutepath="^*\someotherfile.aspx$" -skip:objectName=filepath,absolutepath=".config$"

murarisumit

def checkifDnsRecordExist(domain_name,dns_record):
	
	'''
	(str, str) --> (str)
	Read your domain-name and dns_record and check if it exists or not 
	Returns recordSet and it's value in return 
	
	#If record exist 
	>>> checkifDnsRecordExist("domain_name.com", "mail.domain_name.com")
	mail.domain_name.com : 5.3.5.3

murarisumit

import boto
import sys, traceback
import os

print "=== Instance without terminate protection=============="

conn = boto.connect_ec2(aws_access_key_id='<aws access key>',aws_secret_access_key='<aws secret key>')
instances = conn.get_only_instances()
for instance in instances:
    attrib = instance.get_attribute("disableApiTermination")

murarisumit

# `ref: https://fangpenlin.com/posts/2012/08/26/good-logging-practice-in-python/


import logging

logger = logging.getLogger(__name__)
logger.setLevel(logging.INFO)

# create a file handler
handler = logging.FileHandler('hello.log')

murarisumit

# definations.py
import os
import configparser

# Environment defination variable, this environment variable will use used to pick config file
ENV = os.environ["ENVIRONMENT"]

# settings
settings = configparser.ConfigParser()
BASEDIR = os.path.dirname(os.path.realpath(__file__))

murarisumit

AWS CLI

• Get ec2 instance with name and private ip: aws ec2 describe-instances --query "Reservations[*].Instances[*].[InstanceId,Tags[?Key=='Name']| [0].Value,PrivateIpAddress]" --output table

• Get instance details in some human readable format: aws ec2 describe-instances --query 'Reservations[*].Instances[*].{ID:InstanceId,TYPE:InstanceType,Subnet:SubnetId,VPC:VpcId,IP:PublicDnsName,State:State.Name }' --output table

murarisumit

persistence:
  enabled: true
  accessModes:
    - ReadWriteOnce
  size: 5Gi

datasources: 
 datasources.yaml:
   apiVersion: 1
   datasources: