목록분류 전체보기 (189)

YJWANG

Libvirt qcow2 용량 확장

VM에 할당된 Volume 용량 확장이 필요한 경우가 있다. qemu-img 툴을 이용해서 작업을 진행할 예정이다. 작업 대상 volume은 qcow2 type이다. 확인 현재 정보 확인. 24G로 설정돼있다. [root@cloud-test-5 yjwang_pool]# qemu-img info deploy_kf01_1.qcow2 image: deploy_kf01_1.qcow2 file format: qcow2 virtual size: 24G (25474836480 bytes) disk size: 606M cluster_size: 65536 backing file: /data/yjwang_pool/base_volume.qcow2 backing file format: qcow2 Format specific ..
00.OS 2021. 1. 18. 10:00
kubespray (CentOS 8)

refer to https://github.com/kubernetes-sigs/kubespray Deploy [root@kf01_deploy_0 ~]# yum -y install python3-pip wget git vim epel-release [root@kf01_deploy_0 ~]# yum -y install sshpass - [root@kf01_deploy_0 ~]# git clone https://github.com/kubernetes-sigs/kubespray.git [root@kf01_deploy_0 ~]# cd kubespray/ - [root@kf01_deploy_0 kubespray]# pip3 install -r requirements.txt [root@kf01_deploy_0 kub..
60.Cloud/80.Kubernetes 2021. 1. 15. 17:22
[kubernetes] istio 구축 v1.8

istio 공식 홈페이지에 기술된 'Getting Started' 기준으로 정리된 포스팅이다. Environment [root@master01 ~]# kubectl version Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.7", GitCommit:"1dd5338295409edcfff11505e7bb246f0d325d15", GitTreeState:"clean", BuildDate:"2021-01-13T13:23:52Z", GoVersion:"go1.15.5", Compiler:"gc", Platform:"linux/amd64"} Server Version: version.Info{Major:"1", Minor:"19", G..
60.Cloud/80.Kubernetes 2021. 1. 15. 16:13
Prometheus on K8S (using helm)

refer to https://github.com/prometheus-community/helm-charts prerequisite !!Check your cluster version & helm version Kubernetes 1.16+ Helm 3+ - [root@master01 helm]# kubectl version Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.2", GitCommit:"f5743093fd1c663cb0cbc89748f730662345d44d", GitTreeState:"clean", BuildDate:"2020-09-16T13:41:02Z", GoVersion:"go1.15", Compiler:"g..
60.Cloud/80.Kubernetes 2021. 1. 13. 16:32
How to set Helm on Kubernetes (helm v3)

refer to https://helm.sh/docs/intro/quickstart/ https://helm.sh/docs/intro/install/ Install Helm Install from script $ curl -fsSL -o get_helm.sh https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 $ chmod 700 get_helm.sh $ ./get_helm.sh Using Helm [root@master01 helm]# helm repo add stable https://charts.helm.sh/stable "stable" has been added to your repositories [root@master01..
60.Cloud/80.Kubernetes 2021. 1. 13. 16:01
[VPN] Ubuntu 20.04 vpn 서버 구축 (pptpd)

패키지 설치 sudo apt install pptpd sudo systemctl enable pptpd 커널 파라메타 설정 sudo sysctl -w net.ipv4.ip_forward=1 IPTables 설정 (인터페이스는 환경 마다 다를 수 있음) sudo iptables -I INPUT -p tcp --dport 1723 -m state --state NEW -j ACCEPT sudo iptables -I INPUT -p gre -j ACCEPT sudo iptables -t nat -I POSTROUTING -o eno1 -j MASQUERADE 설정 파일 설정 $ sudo cat /etc/pptpd.conf ... localip 10.0.0.1 remoteip 10.0.0.100-200 ... ..
00.OS 2021. 1. 11. 13:37
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