about

curated essentials

unix philosophy

ralph

prometheus yace

job4 retro

alloy node exporter

argocd sharding limit

ai ate my yaml

trivy-operator ecr integration

logstash exporter

envoyfilter remove headers

netbox keycloak oidc

goldilocks vpa

native admission policy

github enterprise server upgrade

rbac vap guardrails

al2023 nodeadm node join failure

cache key is missing

actions runner custom image

kibana alerting

aws provider eks compatibility

backup-utils

elasticache cve-2025-49844

pv modification vac

hpa single replicas reset

argowf synchronization

alb method routing

testcontainers cache

eks module v20 to v21

gss

ec2 node exporter

n8n postgresql migration

gitea context canceled ts

gpu operator glibc

url parameter is not allowed

argocd hpa degraded

gpu timeslicing

elasticdump

notion 200b blocks

hpa tolerance

gitea migration domains

calico iptables conflict

squid

err pnpm no lockfile

karpenter spot fallback

argocd password reset

alb canary

mimirtool unused metric

datadog finops

eck kibana behind ingress-nginx

litmus dns experiment

terminating pv rescue

grafana viewer explore

alloy loki

ingress-nginx source ip preserve

no-cache s3 cdn

secrets store csi driver with eks pod identity

transfer family via terraform

github pages godaddy

prometheus hot reload

kyverno restrict scale

ethtool collector

arc scale zero

pod identity issue

s3 native locking

prom scaler

pv gp3 migration

podman

pull through cache

fluentd exclude

jvm metric

loki tuning

argocd oidc

access entry

vault eks

eks module v17 to v18

terraform nodegroup delete

terraform sso

tinyproxy install

cgroup v2

datadog flare

coredns cpa

atlantis

velero irsa

configmap auto reload

promtail too many open files

linkerd upgrade

kafka ui

Actions with Automatic Token

datadog-operator

Ingress nginx controller 400 bad request

viz websocket close error

Ingress nginx controller

Kafka

Karpenter

keda

nri-bundle

Elasticsearch

lambda slack mention

mysql operator

GHES Mirror Action

Extend Prometheus PV

multi-architecture ECR

Prometheus Operator

SCDF hack

VPC CNI netpol

Kyverno

Terraform moved Block

GopherCon Korea 2023

DevOps Guide

OpenSSH CVE-2023-38408

Actions Runner Controller ๊ตฌ์„ฑ

NTH

Spot Interruption Notification

AWS ์ž๊ฒฉ์ฆ ํ•ฉ๊ฒฉ ํ›„๊ธฐ

Jenkins Container with awscli

kube-green

eks node image gc

HPA targets unknown ํŠธ๋Ÿฌ๋ธ”์ŠˆํŒ…

maintenance window๋กœ RDS ๊ฐ€๋™์‹œ๊ฐ„ ์ž๋™ํ™”

upgrade karpenter

Senior Engineer

Karpenter PDB is blocking evictions

Karpenter ์„ค์น˜

Site-to-Site VPN with Transit Gateway

Github Enterprise EC2 ์ด์ค‘ํ™” ์„ค์ •

metrics-server helm

RDS ๊ฐ€๋™์‹œ๊ฐ„ ์Šค์ผ€์ค„๋ง ์ž๋™ํ™”

Amazon Linux 2 ๋กœ์ผ€์ผ๊ณผ ํƒ€์ž„์กด ๋ณ€๊ฒฝ

terragrunt ๋ฐฑ์—”๋“œ S3 ์ƒ์„ฑ ์‹คํŒจ

ECS Service ์ƒ์„ฑ์‹œ IAM Role ์—๋Ÿฌ

Retrospective 2022

ํŠน์ • EC2 ์ธ์Šคํ„ด์Šค ํƒ€์ž… ์‚ฌ์šฉ๊ธˆ์ง€ ์„ค์ •

Route 53 VPC Association

AWS ๊ณ„์ • Organization ์˜ฎ๊ธฐ๊ธฐ

Github Enterprise on AWS ๊ตฌ์ถ• ๊ฐ€์ด๋“œ

Terragrunt run all

ECR Lifecycle Policy ์„ค์ • ๊ฐ€์ด๋“œ

AWS ๋„คํŠธ์›Œํฌ ๊ตฌ์„ฑ ํŒจํ„ด ๊ฐ€์ด๋“œ

Github Enterprise MSSQL replication ์˜ค๋ฅ˜

RDS MySQL ์ดˆ๊ธฐ ์„ค์ • ๊ฐ€์ด๋“œ

terraform state lock ํ•ด์ œ

Amazon Linux 2์— nginx ์„ค์น˜

docker build secret ์‚ฌ์šฉ

ECS ์„œ๋น„์Šค์— ์—ฌ๋Ÿฌ๊ฐœ ๋กœ๋“œ๋ฐธ๋Ÿฐ์„œ ์—ฐ๊ฒฐ

ECS exec format error ์—๋Ÿฌ

SonarQube ECS Fargate ์„ค์น˜

SonarQube EC2 ์„ค์น˜

CKA ํ•ฉ๊ฒฉ ํ›„๊ธฐ์™€ ๊ฐ€์ด๋“œ

Argo Workflows์˜ executor plugin ์„ค์ •

brew ๋ฐฑ์—… ๋ฐ ๋ณต๊ตฌ

git ์‚ญ์ œ๋œ ํŒŒ์ผ ๋ณต๊ตฌ

etcd ๋ฐฑ์—… ๋ณต๊ตฌ

Kubernetes the hard way

external secret์˜ ์ตœ์ดˆ ๋™๊ธฐํ™” ์‹คํŒจ ํ•ด๊ฒฐ๋ฐฉ๋ฒ•

coredns ndots

neofetch๋กœ ํ„ฐ๋ฏธ๋„ ๊พธ๋ฏธ๊ธฐ

Pod ์ ‘์† ๋ถˆ๊ฐ€ ๊ด€๋ จ RoleBinding ์„ค์ •

๋ฐ์ดํ„ฐ๋… RDS ์‚ญ์ œ

Gloo ํ™˜๊ฒฝ์—์„œ ArgoCD ๋ฆฌ์†Œ์Šค ์‚ญ์ œ

minikube์— Argo Workflows ํ—ฌ๋ฆ„ ์„ค์น˜

ArgoCD on minikube

Datadog disk metric error

trivy๋กœ ์ปจํ…Œ์ด๋„ˆ ์ทจ์•ฝ์  ์Šค์บ”

Vault Demo

ํ…Œ๋ผํผ S3 ๋ฒ„ํ‚ท ๊ฐ•์ œ์‚ญ์ œ

gp2 to gp3 ๋งˆ์ด๊ทธ๋ ˆ์ด์…˜ ์Šคํฌ๋ฆฝํŠธ

EKS Cluster ์ƒ์„ฑ

ConsoleMe ๋ฆฌ์†Œ์Šค ๋™๊ธฐํ™”

ConsoleMe SES ์—ฐ๋™

Role to Role AssumeRole ์„ค์ •

EC2 ์ธ์Šคํ„ด์Šค ํƒ€์ž…์ด ์ง€์›ํ•˜๋Š” AZ ํ™•์ธ

EC2์—์„œ ECR๋กœ ๋„์ปค ์ด๋ฏธ์ง€ ํ‘ธ์‹œ

Tekton ์„ค์น˜

Check the ECR permission

Celery task์˜ queue ๋ผ์šฐํŒ…

initialize entire commit log

EC2 EBS Volume ์šฉ๋Ÿ‰ ์ฆ์„ค

hugo found no layout file ์—๋Ÿฌ

ํ•„์ˆ˜ ์ฟ ๋ฒ„๋„คํ‹ฐ์Šค ๊ด€๋ฆฌ ํˆด

๋„์ปค ํŒŒ์ผ์‹œ์Šคํ…œ ์ •๋ฆฌ

ํ…Œ๋ผํผ์œผ๋กœ EC2 Instance ์ƒ์„ฑํ•˜๊ธฐ ๋ฐ๋ชจ

CloudWatch Agent ์„ค์น˜ ๋ฐ ๊ตฌ์„ฑ

docker.sock ๊ถŒํ•œ ๊ฑฐ๋ถ€ ์—๋Ÿฌ

DD4500 ๋””์Šคํฌ ๊ต์ฒด์™€ spare disk ์„ค์ •

Networker ์„œ๋น„์Šค ํฌํŠธ ๋ฒ”์œ„ ๋ณ€๊ฒฝ

DD2500 ์šฉ๋Ÿ‰ ๋ถ€์กฑ์‹œ Filesystem cleaning

Docker dangling ์ด๋ฏธ์ง€ ์‚ญ์ œ

submodule ์‚ญ์ œ ํ›„ ์žฌ๋“ฑ๋ก

Jenkins์™€ Slack webhook ์—ฐ๋™

Oracle ํ…Œ์ด๋ธ”์ŠคํŽ˜์ด์Šค ์šฉ๋Ÿ‰ ๊ธ‰์ฆ์˜ ์›์ธ

vSphere ๋„คํŠธ์›Œํฌ ์ด์ค‘ํ™” ์•Œ๋žŒ ๋„๊ธฐ

๋ฆฌ๋ˆ…์Šค ์„œ๋ฒ„์™€ ์Šคํ† ๋ฆฌ์ง€ ๋ณผ๋ฅจ ์—ฐ๊ฒฐ

linux WWN ํ™•์ธ

kind ์ฟ ๋ฒ„๋„คํ‹ฐ์Šค ๊ตฌ์ถ•

mongodb ์„ค์น˜

prometheus์™€ grafana ๊ตฌ์ถ•

MegaCLI ์„ค์น˜ ๋ฐ ์‚ฌ์šฉ๋ฒ•

Dockershim deprecation

Cordon and drain

lshw ํŒจํ‚ค์ง€๋กœ ๋ฆฌ๋ˆ…์Šค ํ•˜๋“œ์›จ์–ด ์ •๋ณด ํ™•์ธ

minikube ๋ฉ€ํ‹ฐ๋…ธ๋“œ ๊ตฌ์„ฑ

์ฟ ๋ฒ„๋„คํ‹ฐ์Šค deployment ์‹ค์Šต

minikube ์„ค์น˜

zsh ํ”Œ๋Ÿฌ๊ทธ์ธ ์„ค์น˜

Kubernetes ์„ค์น˜

zagent ๋ชจ๋‹ˆํ„ฐ๋ง ์—์ด์ „ํŠธ ์„ค์น˜

๋ฆฌ๋ˆ…์Šค ๋ถ€ํŒ…์ˆœ์„œ

hugo ๋Œ“๊ธ€๊ธฐ๋Šฅ ์ถ”๊ฐ€(Utterances)

๋ฆฌ๋ˆ…์Šค ์บ์‹œ ๋ฉ”๋ชจ๋ฆฌ ๋น„์šฐ๊ธฐ

xcrun error

AIX NTP ๋ฐ๋ชฌ ์„ค์ •

ESXi ํ˜ธ์ŠคํŠธ ์„œ๋ฒ„ ๋„๊ธฐ

์˜ค๋ผํด ์•„์นด์ด๋ธŒ ๋กœ๊ทธ ํ™œ์„ฑํ™” ์„ค์ •

AIX History ์‹œ๊ฐ„ ์„ค์ •

AIX ๊ณ„์ •์ž ๊ธˆ ํ•ด์ œ

AIX CPU ์ •๋ณด ๋ฐ ์ „์ฒด ์ฝ”์–ด์ˆ˜ ํ™•์ธ

ipmitool ๋ช…๋ น์–ด๋กœ HP iLO IP ํ™•์ธ

WebtoB ๋ผ์ด์„ผ์Šค ๊ต์ฒด

Oracle processes ํŒŒ๋ผ๋ฏธํ„ฐ ๋ณ€๊ฒฝ

๋ฆฌ๋ˆ…์Šค ๋ฉ”์ธ๋ณด๋“œ ๋ฉ”๋ชจ๋ฆฌ ์Šฌ๋กฏ ํ™•์ธ

์˜ค๋ผํด ์„ธ์…˜ ํ™•์ธํ•˜๊ณ  Kill

์˜ค๋ผํด ๋ฐ์ดํ„ฐ ํŒŒ์ผ ์˜ฎ๊ธฐ๊ธฐ

ORA-28007 ์กฐ์น˜๋ฐฉ๋ฒ•

VMware Tools ์„ค์น˜

Cockpit ๋กœ๊ทธ์ธ ๋ฉ”์„ธ์ง€ ๋น„ํ™œ์„ฑํ™”

Brocade DS6510์—์„œ Zoning ์„ค์ •ํ•˜๊ธฐ

CentOS 7์—์„œ hpssacli ์„ค์น˜ ๋ฐ ์‚ฌ์šฉ๋ฒ•

๋ฆฌ๋ˆ…์Šค์—์„œ EMC Networker ์—์ด์ „ํŠธ ์„ค์น˜

HP-UX root ์ง์ ‘ ๋กœ๊ทธ์ธ ๊ธˆ์ง€

๋ฆฌ๋ˆ…์Šค history์— ์‹œ๊ฐ„ ํ‘œ์‹œ

Hugo x github ๋ธ”๋กœ๊ทธ ์„ค์น˜ ๋ฐฉ๋ฒ•