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Revamping Engineering

Athiththan Kathirgamasegaran athiththan11

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Revamping Engineering
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@iwek
iwek / find-in-json.js
Created October 20, 2012 21:43
Searching through JSON
//return an array of objects according to key, value, or key and value matching
function getObjects(obj, key, val) {
var objects = [];
for (var i in obj) {
if (!obj.hasOwnProperty(i)) continue;
if (typeof obj[i] == 'object') {
objects = objects.concat(getObjects(obj[i], key, val));
} else
//if key matches and value matches or if key matches and value is not passed (eliminating the case where key matches but passed value does not)
if (i == key && obj[i] == val || i == key && val == '') { //
@thbkrkr
thbkrkr / gen-ssl.sh
Created April 7, 2015 16:15
Generate Self-Signed SSL Certificate without prompt
# Generate a passphrase
openssl rand -base64 48 > passphrase.txt
# Generate a Private Key
openssl genrsa -aes128 -passout file:passphrase.txt -out server.key 2048
# Generate a CSR (Certificate Signing Request)
openssl req -new -passin file:passphrase.txt -key server.key -out server.csr \
-subj "/C=FR/O=krkr/OU=Domain Control Validated/CN=*.krkr.io"
@henriquemenezes
henriquemenezes / postgresql-set-id-seq.sql
Created March 31, 2016 12:23
PostgreSQL set Next ID Sequence Value to MAX(id) from Table
-- Get Max ID from table
SELECT MAX(id) FROM table;
-- Get Next ID from table
SELECT nextval('table_id_seq');
-- Set Next ID Value to MAX ID
SELECT setval('table_id_seq', (SELECT MAX(id) FROM table));
@notheotherben
notheotherben / README.md
Last active September 9, 2021 07:50
Fix Postgres 9.x Sequences

PostgreSQL 9.x Sequence Fixing Script

This script is intended to automatically fix the sequence numbers for all tables in the current database.

This is accomplished through the use of the setval() command, which we provide with the next ID value we wish to make use of. We use the setval(sequence, number, is_called) overload and set is_called = false in conjunction with COALESCE(MAX + 1, 1) to ensure that, with an empty table, the next sequence value is 1 as expected.

@fntlnz
fntlnz / self-signed-certificate-with-custom-ca.md
Last active July 15, 2024 09:31
Self Signed Certificate with Custom Root CA

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096
@tamas-molnar
tamas-molnar / kubectl-shortcuts.sh
Last active June 19, 2024 14:10
aliases and shortcuts for kubectl
alias kc='kubectl'
alias kclf='kubectl logs --tail=200 -f'
alias kcgs='kubectl get service -o wide'
alias kcgd='kubectl get deployment -o wide'
alias kcgp='kubectl get pod -o wide'
alias kcgn='kubectl get node -o wide'
alias kcdp='kubectl describe pod'
alias kcds='kubectl describe service'
alias kcdd='kubectl describe deployment'
alias kcdf='kubectl delete -f'
package studio.safe.spring.resttemplate;
import java.io.File;
import java.io.IOException;
import org.springframework.core.io.FileSystemResource;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
kubectl get services # List all services
kubectl get pods # List all pods
kubectl get nodes -w # Watch nodes continuously
kubectl version # Get version information
kubectl cluster-info # Get cluster information
kubectl config view # Get the configuration
kubectl describe node <node> # Output information about a node
kubectl get pods # List the current pods
kubectl describe pod <name> # Describe pod <name>
kubectl get rc # List the replication controllers

Install Minikube with virtual-box VM driver

$ brew update && brew install kubectl && brew cask install docker minikube virtualbox
$ brew cask reinstall minikube
$ minikube delete
$ rm -fr ~/.minikube/