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udhos / go_port_forwarding.go
Created October 21, 2021 00:28 — forked from qhwa/go_port_forwarding.go
network port forwarding in go lang
package main
import (
"fmt"
"io"
"net"
)
func main() {
ln, err := net.Listen("tcp", ":8080")
@udhos
udhos / prometheus_scrape_pod.md
Created September 30, 2021 21:37
prometheus_scrape_pod

Add annotations to pod:

metadata:
  annotations:
   prometheus.io/scrape: 'true'
   prometheus.io/path: '/data/metrics'
   prometheus.io/port: '80'
@udhos
udhos / ssm_ssh.md
Last active September 27, 2021 21:16
ssm ssh
@udhos
udhos / curl_cacert.md
Last active September 20, 2021 18:28
curl_cacert

get ca cert

openssl s_client -showcerts -servername servername -connect servername:443 > /tmp/cacert.pem

show

openssl x509 -in /tmp/cacert.pem -text

use ca cert

@udhos
udhos / lambda_invokation.md
Last active August 9, 2021 22:32
lambda_invokation.md

There are three ways Lambda function can get data from other services:

Services that Lambda reads events from

Note: this isn't sync nor async.

  • Amazon DynamoDB
  • Amazon Kinesis
  • Amazon MQ
  • Amazon Managed Streaming for Apache Kafka
@udhos
udhos / lambda-troubleshooting.md
Last active August 5, 2021 14:31
lambda troubleshooting
@udhos
udhos / attach_eks_serviceaccount_to_iam_role.md
Last active August 18, 2021 22:33
attach eks serviceaccount to iam role
@udhos
udhos / mongodb curso e performance
Created April 23, 2021 18:49
mongodb curso e performance
Mongo Curso
https://university.mongodb.com/courses/M001/about
Mongo Performance
https://docs.mongodb.com/manual/tutorial/analyze-query-plan/