dijeesh

EKS clusters created from 1.12 onwards use a config file (by mounting a configmap called kube-proxy-config
If you are updating a cluster that was originally created on < 1.12, you will need to updated the kube-proxy configmaps and daemonsets.



1. Create kube-proxy-config configmap 
 
   kubectl -n kube-system apply -f kube-proxy-config.yaml 

2. Update kube-proxy configmap, replace the server: with your API Server endpoint details and apply.

dijeesh

comm -23  <(aws ec2 describe-security-groups --query 'SecurityGroups[*].GroupId'  --output text | tr '\t' '\n'| sort) <(aws ec2 describe-instances --query 'Reservations[*].Instances[*].SecurityGroups[*].GroupId' --output text | tr '\t' '\n' | sort | uniq)

dijeesh

Change xxxxxxxxxxx with your HOSTED-ZONE-ID

aws route53 list-resource-record-sets --hosted-zone-id "/hostedzone/xxxxxxxxxxx" | \
   jq -r '.ResourceRecordSets[] | [.Name, .Type, (.ResourceRecords[]? | .Value), .AliasTarget.DNSName?]  | @tsv'

dijeesh

version: '3'

services:

  db:
    container_name: db
    image: postgres:9.6
    restart: always  
    volumes:
      - "/data/metabase/pgdata:/var/lib/postgresql/data"

dijeesh

SELECT table_schema "DB Name", Round(Sum(data_length + index_length) / 1024 / 1024, 1) "DB Size in MB" FROM information_schema.tables GROUP BY table_schema;

dijeesh

1. Install jq

2. Run 

(
NAMESPACE=YOUR-NAMESPACE
kubectl proxy &
kubectl get namespace $NAMESPACE -o json |jq '.spec = {"finalizers":[]}' >temp.json
curl -k -H "Content-Type: application/json" -X PUT --data-binary @temp.json 127.0.0.1:8001/api/v1/namespaces/$NAMESPACE/finalize
)

dijeesh

---
AWSTemplateFormatVersion: '2010-09-09'
Description: 'CloudFormation - EKS VPC Stack'
Parameters:
  EnvironmentName:
    Description: 'CloudFormation - EKS VPC Stack'
    Type: String
    Default: '- CloudFormation - EKS VPC Stack'

  VPCName:

dijeesh

cd /var/named

sed -i 's/20[0-9][0-9]\{7\}/2016120701/g’ *.db
  
This will set Serial Numbers for all zones to  : 2016120701 [ YYYYMMDDNN ]

Take a backup of named directory before updating serial numbers.

dijeesh

#!/bin/bash
# XenServer Disk Monitoring and post message to XenCenter

# Get this host's UUID
thisUUID=`xe host-list name-label=$HOSTNAME params=uuid --minimal`

# Threshold of disk usage to report on
threshold=75    # an example of how much disk can be used before alerting

# Get disk usage

dijeesh

#! /bin/bash
# Dijeesh Padinhaethil

# Script to take MySQL backups to remote server using Percona Xtrabackup



# Confirm log directory exist, create on if doesn't.