[k8s/istio/Docker] 명령 메모

명령

kubectl logs test-pod-8888 -n istio-system -f --tail=10

명령

kubectl create deployment nginx --image=nginx -n istio-system

명령

kubectl rollout restart deployment/ingressgateway -n istio-system
kubectl rollout history deployment/ingressgateway -n istio-system
kubectl rollout status deployment/ingressgateway -n istio-system
kubectl set image deployment/ingressgateway <Pod名>=<イメージURL> -n istio-system

명령

kubectl describe node | grep Taint
kubectl taint nodes <ノード名> key1=value1:NoSchedule-

명령

kubectl get pods --all-namespaces -o=jsonpath='{range .items[*]}{"\n"}{.metadata.name}{":\t"}{range .spec.containers[*]}{.image}{", "}{end}{end}' |\
sort

istioctl 명령

istioctl proxy-config cluster test-ingressgateway-8888 -n istio-system -o json | grep -20 "test-word"

istioctl install 명령

istioctl install -f /istio/install.yaml --context <コンテキスト> -y

시스템 명령

systemctl list-units --type=service

curl 명령

curl -vvv https://www.docker.com -x http://test-proxy:8888

소통 확인 명령

$ sudo yum install nmap
$ nping 12.34.56.789 -p 8888
$ nc -v -z 12.34.56.789 8888
$ echo "" > /dev/tcp/12.34.56.789/8888 && echo "Port open." || echo "Port closed...."
$ timeout 5 bash -c "</dev/tcp/12.34.56.789/8888" && echo "Port open." || "echo Port closed."

AWS CLI 명령

$ aws s3api head-object --bucket my-s3bucket --key my-s3object
$ aws cloudwatch set-alarm-state --alarm-name my-alarm-test --state-value ALARM --state-reason "test"

조사 명령

du -sh /*
find ./ -type f -name "test.log*"
cp /dev/null hoge.txt
sudo cat /var/log/messages | grep Failed

ECR 명령

$ aws ecr get-login --no-include-email --registry-ids 88889999 --region ap-northeast-1

명령

$ journalctl -k
$ journalctl -u nginx | grep -A 20 "test-word"

시스템 명령

$ systemctl list-unit-files --type=service

시크릿 관리자 명령

$ aws secretsmanager get-secret-value --secret-id test-key --query 'SecretBinary' --output text --region ap-northeast-1

terraform target 명령

$ terraform plan -target module.test_vpc

명령

$ kubectl rollout history deployment nginx-deployment
$ kubectl set image deployment nginx-deployment nginx=nginx:1.21.1
$ kubectl rollout status deployment nginx-deployment
$ kubectl rollout history deployment nginx-deployment
$ kubectl rollout undo deployment nginx-deployment

pod 확인

$ kubectl get pod -A
$ kubectl get pod -w  // ずっと表示
$ kubectl get pod --namespace=istio-system

Envoy-Proxy 디버그

$ kubectl describe pod <Pod名> -n istio-system  // コンテナ名取得
$ kubectl exec -it <Pod名> -c <コンテナ名> -n istio-system bash

로그 확인

$ kubectl logs <NAME> -n istio-system
$ kubectl describe pod <NAME> -n istio-system

설치된 API 확인

$ kubectl get api-versions

YAML 표시

$ kubectl get pod <NAME> -n istio-system -o yaml | less

끝점 디스플레이

$ kubectl get ep -n istio-system

한 번에 pod 삭제

kubectl delete --all pods -n istio-system

편집/제거

$ kubectl edit <NAME> deployment -n istio-system
$ kubectl delete namespace istio-system

컨텍스트 뷰

$ kubectl config get-contexts
$ kubectl config current-context

istio 측면 차량 분사

$ kubectl label namespace default istio-injection=enabled  // 有効
$ kubectl get namespace -L istio-injection  // 確認
$ kubectl label namespace default istio-injection=disabled --overwrite
$ kubectl label namespace default istio-injection-

ClusterRole / ClusterROleBinding

$ kubectl get ClusterRole -n istio-system
$ kubectl get ClusterRoleBinding -n istio-system

Docker

중지/삭제

$ docker stop $(docker ps -q)
$ docker rm -f `docker ps -a -q`
$ docker rmi `docker images -q`

Docker 프록시 설정

$ sudo mkdir -p /etc/systemd/system/docker.service.d
$ sudo vi /etc/systemd/system/docker.service.d/http-proxy.conf

[Service]
Environment="HTTP_PROXY=http://test-proxy:8888"
Environment="HTTPS_PROXY=http://test-proxy:8888"

$ sudo systemctl daemon-reload
$ sudo systemctl enable docker
$ sudo systemctl restart docker

이미지 만들기

$ docker build -f docker/Dockerfile -t image_01 .

로컬 마운트 & 지정 포트

$ docker run -itd -p 127.0.0.1:8000:8000 -v ~/Developer/sample_app:/var/www/sample_app --name container_01 image_01

terraform

state

$ terraform state list
$ terraform state rm <state名>
$ rm -rf .terraform

MySQL

column 표시

$ show columns from sampler_tweetsdata;

삭제

$ delete from sample_data where id = 1;

덧붙이다

$ insert into sample_data values (1, 200);

Git

분기 전환 실패 시

$ git merge --abort

캐시 지우기

$ git rm -r --cached .

인출

$ git fetch --all
$ git fetch --tags --all

참고 문헌