- 상황 lambda 실행 - 에러 [ERROR] [1674721589583] LAMBDA_RUNTIME Failed to post handler success response. Http response code: 413. - 원인 too large payload 6 MB each for request and response (synchronous) 256 KB (asynchronous) - reference https://docs.aws.amazon.com/lambda/latest/dg/gettingstarted-limits.html

- 방법1 dummy로 key pair생성하면서 tag를 생성하여 해당 tag key 사용 - 방법2 Actions에서 Manage tags

- 개요 WSL ubuntu에서 WSL_DISTRO_NAME env를 root 계정에서 인식 못할 경우 - 설정 전 $ echo $WSL_DISTRO_NAME Ubuntu-22.04 $ sudo -i $ echo $WSL_DISTRO_NAME - sudoers env 설정 (WSL_DISTRO_NAME) vim /etc/sudoers Defaults env_keep=WSL_DISTRO_NAME - 설정 후 $ echo $WSL_DISTRO_NAME Ubuntu-22.04 $ sudo -i $ echo $WSL_DISTRO_NAME Ubuntu-22.04

- 개요 Local에서 Docker build 테스트하는 과정에서 cache로 인해 정상적인 테스트가 힘들 경우 아래 명령어를 통해 Cache 삭제 - 방법 docker builder prune - reference https://docs.docker.com/engine/reference/commandline/builder_prune/

- Good for Security (Zero Trust) and save traffic costDo not use root user for commom case.Use individual IAM user.Use MFA for Every IAM user include root account.Use Role not accesskey.Separate VPC for ENV such as dev, staing, production.Separate private and public subnets on VPC.Use individual routing tables for private and public subnets on VPC. (NAT Gateway, Internet Gateway)Internet traffic..

- 개요 CentOS에 nvidia-docker2를 설치하는 과정은 의존성 및 버전 정합성 이슈로 상당히 까다롭다 - 방법 sudo yum config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo sudo yum erase podman buildah sudo yum install docker-ce sudo systemctl start docker sudo systemctl enable docker sudo curl -L https://github.com/docker/compose/releases/download/v2.14.2/docker-compose-linux-x86_64 -o /usr/local/bin/docke..

- 개요 docker-ce, docker compose를 CentOS 8에 설치하는 방법 - 설치방법 sudo yum config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo sudo yum erase podman buildah sudo yum install docker-ce sudo systemctl start docker sudo systemctl enable docker sudo curl -L https://github.com/docker/compose/releases/download/v2.14.2/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose su..

- 개요 CentOS 8 관련 repo를 enable하고 아래와 같은 에러가 날 경우 Error: Failed to download metadata for repo 'appstream': Cannot prepare internal mirrorlist: No URLs in mirrorlist - 해결 방법 sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-Linux-* sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-Linux-*

- 개요 domain을 다른 AWS Account로 이관하는 방법은 아래 순서로 진행을 해야 한다 - 1. 기존 account >> aws sts get-caller-identity --query "Account" --output text 1234567890 root@ ~ >> aws route53domains list-domains --region us-east-1 { "Domains": [ { "DomainName": "example.com", "AutoRenew": true, "TransferLock": true, "Expiry": "2055-04-05T16:39:07+09:00" } ] } root@ ~ >> aws route53domains transfer-domain-to-another-aws..

- 개요 cloudwatch loggroup의 log를 filter에서 slack으로 알려주는 app 구성 방법 - 방법 (1) Slack App 생성 및 Webhook URL 획득 https://api.slack.com/apps >> create new app >> Add features and functionality >> Active Incoming Webhooks >> Webhook URL Copy - 방법 (2) AWS SAR 에서 App 생성 https://serverlessrepo.aws.amazon.com/applications/us-east-1/289559741701/cw-logs-to-slack https://github.com/keetonian/cw-logs-to-slack - 방법 ..