PangYeon`s IT Log

kubectl 도구를 이용하여 Windows에서 기타 서버에 설치되어있는 k8s cluster를 사용할 수 있으며,

k8s 클러스터가 여러개일 경우에도 선택하여 사용가능하다.

1. k8s 설치

Window에 Terminal 또는 Powershell을 열어 아래의 명령어를 통해 kubectl을 다운받는다.

curl.exe -LO "https://dl.k8s.io/release/v1.28.4/bin/windows/amd64/kubectl.exe"

다운 후 Path에 등록하여도 되고 직접 kubectl 설치되어있는 폴더 호출 하여 사용해도 무관.

# C드라이브 test폴더에서 kubectl 파일 다운받았을 경우
C:\test> ./kubectl

2. k8s config 파일 복사

서버에 있는 k8s config파일의 내용을 복사한다.

cat ~/.kube/config

apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: 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
    server: https://192.168.1.1:6443
  name: dev-k8s
contexts:
- context:
    cluster: dev-k8s
    user: pangyeon
  name: pangyeon-dev
current-context:  pangyeon-dev
kind: Config
preferences: {}
users:
- name: pangyeon
  user:
    client-certificate-data: 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
    client-key-data: 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

3. 복사한 파일 이동 및 조회

아래 두가지 방법으로 사용가능

3.1 Windows 계정 폴더로 이동

C:\Users\본인계정\  으로 이동하여 .kube 폴더 생성 후 아래에 config파일 이동

C:\Users\본인계정\.kube\config 에 파일이 있을 경우 바로 사용가능하다.

# C드라이브 test에 kubectl 파일이 있는 경우
PS C:\test> ./kubectl get pods -A
NAMESPACE       NAME                                                READY   STATUS        RESTARTS       AGE
ingress-nginx   ingress-nginx-controller-6544f7745b-z4lsr           1/1     Running       1 (52m ago)    24h
kube-system     coredns-5dd5756b68-2tl8x                            1/1     Terminating   0              1d
kube-system     coredns-5dd5756b68-6b55b                            1/1     Terminating   0              1d
kube-system     coredns-5dd5756b68-7fxrc                            1/1     Running       8 (52m ago)    1d
kube-system     coredns-5dd5756b68-h982d                            1/1     Running       9 (52m ago)    1d
kube-system     etcd-ubuntu                                         1/1     Running       0              1d
kube-system     kube-apiserver-ubuntu                               1/1     Running       0              1d
kube-system     kube-controller-manager-ubuntu                      1/1     Running       0              1d
kube-system     kube-proxy-2sngh                                    1/1     Running       9 (52m ago)    1d
kube-system     kube-proxy-mmsbf                                    1/1     Running       10 (52m ago)   1d
kube-system     kube-proxy-zh22k                                    1/1     Running       0              1d
kube-system     kube-scheduler-ubuntu                               1/1     Running       0              1d
kube-system     weave-net-94f8g                                     2/2     Running       24 (52m ago)   1d
kube-system     weave-net-gszsj                                     2/2     Running       30 (51m ago)   1d
kube-system     weave-net-hxknh                                     2/2     Running       1 (99d ago)    1d

3.2 사용하기 편한곳에 config 파일두고 kubectl --kubeconfig 옵션을 통해 사용

# C드라이브 내 test폴더에 config파일이 있을 경우
./kubectl get pods -A --kubeconfig=C:\test\config
NAMESPACE       NAME                                                READY   STATUS        RESTARTS       AGE
ingress-nginx   ingress-nginx-controller-6544f7745b-z4lsr           1/1     Running       1 (52m ago)    24h
kube-system     coredns-5dd5756b68-2tl8x                            1/1     Terminating   0              1d
kube-system     coredns-5dd5756b68-6b55b                            1/1     Terminating   0              1d
kube-system     coredns-5dd5756b68-7fxrc                            1/1     Running       8 (52m ago)    1d
kube-system     coredns-5dd5756b68-h982d                            1/1     Running       9 (52m ago)    1d
kube-system     etcd-ubuntu                                         1/1     Running       0              1d
kube-system     kube-apiserver-ubuntu                               1/1     Running       0              1d
kube-system     kube-controller-manager-ubuntu                      1/1     Running       0              1d
kube-system     kube-proxy-2sngh                                    1/1     Running       9 (52m ago)    1d
kube-system     kube-proxy-mmsbf                                    1/1     Running       10 (52m ago)   1d
kube-system     kube-proxy-zh22k                                    1/1     Running       0              1d
kube-system     kube-scheduler-ubuntu                               1/1     Running       0              1d
kube-system     weave-net-94f8g                                     2/2     Running       24 (52m ago)   1d
kube-system     weave-net-gszsj                                     2/2     Running       30 (51m ago)   1d
kube-system     weave-net-hxknh                                     2/2     Running       1 (99d ago)    1d

4. k8s 클러스터가 여러개일경우

config 파일에 등록한다.

apiVersion: v1
clusters:
- cluster:
    certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSURCVENDQWUyZ0F3SUJBZ0lJTC9XdXZlY1ZxL013RFFZSktvWklodmNOQVFFTEJRQXdGVEVUTUJFR0ExVUUKQXhNS2EzVmlaWEp1WlhSbGN6QWVGdzB5TXpBNE1qRXhNelV4TlROYUZ3MHpNekE0TVRneE16VTJOVE5hTUJVeApFekFSQmdOVkJBTVRDbXQxWW1WeWJtVjBaWE13Z2dFaU1BMEdDU3FHU0liM0RRRUJBUVVBQTRJQkR3QXdnZ0VLCkFvSUJBUURmZTZSREhXZE90Q25qczZnNHFESVprZHFzR2ZRUEE5MXlWYS9LN3AwcTZIRllvRzRQcGZHMkdUeFIKWi9HeXFqU3ZIS01KYWo1WUIvdHJ1TEtrMnoreTFGZXp0eHJFc1JkVi96UXlNOENrcGZVd1FhV2dNMGhSUTF3NgpKcTZGOHhsMlBSaDFlRjJ1eG9YT0pPOFFGam1EV2lUWVQrNEhTL0dRRE5hTlYvNlAxOXllM2VNQWhyZndQeU4xCkJKWXNwRnBTRFJLMTNpNG1IYTk3ZS9WMU9iQkFaQlJNZHhYc3FsaHQvaDR3UWFaRGF4N05tb2huVC9QOGlJTzYKamdtMC82cDBiRmhaaU5nam10TFkwdW9sd2R5Z1JyV1laSCtsclJ6b3FmbW0wUzRieEwrNC9lUXVCeFNlYzBmQwozWjlTaFJPaitiVkt6MFdmRG5PUEQ4S29kTmJqQWdNQkFBR2pXVEJYTUE0R0ExVWREd0VCL3dRRUF3SUNwREFQCkJnTlZIUk1CQWY4RUJUQURBUUgvTUIwR0ExVWREZ1FXQkJSNHR3RnVGY2JTN3VxZXhPcFdCdTEreTFUU0x6QVYKQmdOVkhSRUVEakFNZ2dwcmRXSmxjbTVsZEdWek1BMEdDU3FHU0liM0RRRUJDd1VBQTRJQkFRQUJpSXNhK0EvNgpkdzIzWVNhTm8wU0FaQ3ZUckc1eE1wVWtpRktDcXd0eXU5OFhOR29JNWlhY3pyMllsS2ZueGh6eVNzSFJuWTBNCnZUT3k3aUp2ZGhseldqUlUvcGZMS0hRMVZuSkZ6ZzQ1NDhrdE5MUHQ3eVFTL25HelJDZnJhZGhzc0FKTzJMc1cKTnRxVm5kM3hibVpFTDREamM4ZWNmYVJZMHJTMm9yQ3RoZzZQZFZhMTdQaWlWTk1zS0hGSnJpMVRPdEY5VzdKYQpNQkRLN2ttL2syZThnRmJPYzhlZHc5VGVmS09QTFBLenN6NXVzbWRCNnVyNnZxRFlUYWhtVi9UV2NrQW04aFd6ClU4bkxDcEE1VVllV3hkbTBJSGU2L0NOUmNEeXQzUEtOQTlMZm5zeHcxZjh5c24zSElSSTc2REhyVE9OK3lQUjQKRFpacjI5YjRsWkVtCi0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0K
    server: https://192.168.1.1:6443
  name: dev-k8s
- cluster:
    certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSURCVENDQWUyZ0F3SUJBZ0lJTC9XdXZlY1ZxL013RFFZSktvWklodmNOQVFFTEJRQXdGVEVUTUJFR0ExVUUKQXhNS2EzVmlaWEp1WlhSbGN6QWVGdzB5TXpBNE1qRXhNelV4TlROYUZ3MHpNekE0TVRneE16VTJOVE5hTUJVeApFekFSQmdOVkJBTVRDbXQxWW1WeWJtVjBaWE13Z2dFaU1BMEdDU3FHU0liM0RRRUJBUVVBQTRJQkR3QXdnZ0VLCkFvSUJBUURmZTZSREhXZE90Q25qczZnNHFESVprZHFzR2ZRUEE5MXlWYS9LN3AwcTZIRllvRzRQcGZHMkdUeFIKWi9HeXFqU3ZIS01KYWo1WUIvdHJ1TEtrMnoreTFGZXp0eHJFc1JkVi96UXlNOENrcGZVd1FhV2dNMGhSUTF3NgpKcTZGOHhsMlBSaDFlRjJ1eG9YT0pPOFFGam1EV2lUWVQrNEhTL0dRRE5hTlYvNlAxOXllM2VNQWhyZndQeU4xCkJKWXNwRnBTRFJLMTNpNG1IYTk3ZS9WMU9iQkFaQlJNZHhYc3FsaHQvaDR3UWFaRGF4N05tb2huVC9QOGlJTzYKamdtMC82cDBiRmhaaU5nam10TFkwdW9sd2R5Z1JyV1laSCtsclJ6b3FmbW0wUzRieEwrNC9lUXVCeFNlYzBmQwozWjlTaFJPaitiVkt6MFdmRG5PUEQ4S29kTmJqQWdNQkFBR2pXVEJYTUE0R0ExVWREd0VCL3dRRUF3SUNwREFQCkJnTlZIUk1CQWY4RUJUQURBUUgvTUIwR0ExVWREZ1FXQkJSNHR3RnVGY2JTN3VxZXhPcFdCdTEreTFUU0x6QVYKQmdOVkhSRUVEakFNZ2dwcmRXSmxjbTVsZEdWek1BMEdDU3FHU0liM0RRRUJDd1VBQTRJQkFRQUJpSXNhK0EvNgpkdzIzWVNhTm8wU0FaQ3ZUckc1eE1wVWtpRktDcXd0eXU5OFhOR29JNWlhY3pyMllsS2ZueGh6eVNzSFJuWTBNCnZUT3k3aUp2ZGhseldqUlUvcGZMS0hRMVZuSkZ6ZzQ1NDhrdE5MUHQ3eVFTL25HelJDZnJhZGhzc0FKTzJMc1cKTnRxVm5kM3hibVpFTDREamM4ZWNmYVJZMHJTMm9yQ3RoZzZQZFZhMTdQaWlWTk1zS0hGSnJpMVRPdEY5VzdKYQpNQkRLN2ttL2syZThnRmJPYzhlZHc5VGVmS09QTFBLenN6NXVzbWRCNnVyNnZxRFlUYWhtVi9UV2NrQW04aFd6ClU4bkxDcEE1VVllV3hkbTBJSGU2L0NOUmNEeXQzUEtOQTlMZm5zeHcxZjh5c24zSElSSTc2REhyVE9OK3lQUjQKRFpacjI5YjRsWkVtCi0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0K
    server: https://192.168.2.1:6443
  name: stg-k8s
contexts:
- context:
    cluster: dev-k8s
    user: pangyeon-dev
  name: pangyeon-dev
- context:
    cluster: stg-k8s
    user: pangyeon-stg
  name: pangyeon-stg
current-context: pangyeon-dev
kind: Config
preferences: {}
users:
- name: pangyeon-dev
  user:
    client-certificate-data: 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
    client-key-data: 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
- name: pangyeon-stg
  user:
    client-certificate-data: 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
    client-key-data: LS0tLS1CRUdJTiBSU0EgUFJGSNRYJASQAWpNSUlFcFFJQkFBS0NBUUVBMnRBUmJacGJSY2x0VldGMGpXRVQreGZSejQvZ2htK2JYQjN2NXJaYVczTUpMcU9CClpIY1plQk9MQUJOa29uTmcrcFBNVGd2Y1BLNDVMaUFGN2tKK214OVFlVG5tL2tlOUZtRUErMDQ0SDJRZnMxUDkKOTVlZGtkd1lnVEE3OFRYdzkyc2RZRnhmMko0ekRXdi8yYko5MUdKM0lITGEzc3hsMUZRL0tUN2ZhWGtFNUpOSAp3bzdlK1hhV0FOY0RPSFRPVnlKMFhPN0RqYll4em9nZkVWcXlsRGI5azNCZmZRRzZnTWRlbUdudTRmSTRzMmxZClRla3NUZkF0TURvRXNiTVNZWmxoaHlVeXhTTC9MZzkwUEsyUzFBaGVIbmFwK09RSlBHM2h4dHFtbys5bWNEQ2IKVkpuTHl3aDd6MGdVa2Y1djNyeks4TzBqbExJUFJOUDNrcDRBeFFJREFRQUJBb0lCQVFDTGxKcnBmY09uZXR5QgowSThXK014VUtsZXV2aXNOMXZnV0JRclo4NDBrTlBld2hxQ3R3OE85YzBvQ0hGemZ2QllyQWtrYnFEa3ZoRHY1CmpuZjZDdlRVWTE5a1ZXbGkzOFJoR0RRV0cwbDF6TnJqL0RwUHpLbTVOOXR4M2FEL045ZWxIUEU2WFBMUExldUgKTGxPaFBWbERPQ1NoMEdLS0tYenp1MkluSDNKSXhyby9XYk12MmkwdWtVcEllTkdta1JMZ1VDR09zL25qNmpjdAowOHl2ZHpZUVdwQW5QcHRvZ2RQbTgrUzJHVHBXWktlOUhEbDRqd3NpWVRVZW9IYnpRWWJBUys1SzRmdkJmUGN5CmUyZmU5ZGUxL3lpc1h1b3VHcmt1cGs1ejgveXN6eGJTVlZ2ZlhlWmhjV2dub0xrOEJ2RkY4WC9KV0ZIWE5oUisKY3JhUEg2bkJBb0dCQU81Z2FtVDdzQjhCUWJaQVR1VXlDMk13ZHkzV0l6K21NKzdyVFFLU3htR296VnJlOVhUcgpyN0dub1J4dnpVUWxkWk1HNWQ5RTB5ZFBqOFMzeW81NG16LzZOaW5iQnBaT1NDN2N4eHlOTnNRMFY4TWZxRVEwCnB4T094K1FJaG9GRC9vRXFlVmhvSFYvQ2IzOEN3K1p5VVlyejdxZk40WEZkQ2ovYTMrVnR5S0ROQW9HQkFPcjkKWVp4aU1PaXkzR0pJVlJ1SzY1N005QWsyZFF3blJDeWZTbUZXNzdHMTdRc1RWQy9uVXVueHRMNGNiVEhaRndVMgo2dXVIUUg2QUNMS2p1ek03djJ3MERsZUNlbG1TKzFaelZvS2I2Mmc2S3pUZXZ2bWhrczI0Vkxtc1BMT0lta1pGCndHSmJoT1lFcDhXcktZalZQNzJXSmg4bXhLVFBUSVhFNTZKSzZIL1pBb0dCQU0yQXUxaHhqdVU3M1IyMGxRK00KTkRyL3hrN3l4QktVUTBOZkFWWU5tUThLU25kanJYSnQyVnFyNi80cStHZ2VieDBnbmozOEJKbG9Rc1pSdUVOWgpBR2FJVy9kN2hsTkFDNFN5K3NqSGlRWmZKYVhtL2RaSEdoNkhRaFo1cnhOenZjNDNBc1BQaGp0TzBYWkt1UDVMClliY01FcHdCcHJCbmlIV0NTUEZ1MHI2bEFvR0FSUGdYUlJIZ3J2dUlDV1NYYmgwSTZMUFkwRGRtaFNtbExiK1cKMGhqMUF1Q1ZjUkc4UE04Vkc4cXdOTGdkS0d0Q0FXckw2bExwRC9lK0ZjaE9ja3dQODg4WGdvR3VMVW9oY0k4cgpqZXY3WEx6dDMzZWM3NkdIZDgrcE5sR2lBME9ObkNCdXhhOTh3eElNdDh4enhWQnBnOWhrMmZIRDkyZE1XMXFlCmJaaTB3b2tDZ1lFQTdoWUNYSXlXQkpkU3lrMnNPakVndHdLY3AwY2VxUC9sd2QwbGFya2VDU1laSEtweGY5TSsKMm93dGd6UzFTZ1pibHlvRytMQzVFRkF6cXJIK002aHdXZCtMcG8yeWhBZ1hVNm9SMDlNdG56ZUo0UGhBTzI5WQo1ejNiZHp5Q1RNZlN4RUYweWNOL21yZnI1N2VGVk51d1ZnUkVySWxkVGw5NkRaVENXS2ZDb0h3PQotLS0tLUVORCBSU0EgUFJJVkFURSBLRVktLS0tLQo=

5. use-context 옵션을 통해 클러스터를 선택한다.

PS C:\test> ./kubectl config use-context pangyeon-dev
Switched to context "pangyeon-dev".

6. 선택 후 조회

./kubectl get pods -A
NAMESPACE       NAME                                                READY   STATUS        RESTARTS       AGE
ingress-nginx   ingress-nginx-controller-6544f7745b-z4lsr           1/1     Running       1 (52m ago)    24h
kube-system     coredns-5dd5756b68-2tl8x                            1/1     Terminating   0              1d
kube-system     coredns-5dd5756b68-6b55b                            1/1     Terminating   0              1d
kube-system     coredns-5dd5756b68-7fxrc                            1/1     Running       8 (52m ago)    1d
kube-system     coredns-5dd5756b68-h982d                            1/1     Running       9 (52m ago)    1d
kube-system     etcd-ubuntu                                         1/1     Running       0              1d
kube-system     kube-apiserver-ubuntu                               1/1     Running       0              1d
kube-system     kube-controller-manager-ubuntu                      1/1     Running       0              1d
kube-system     kube-proxy-2sngh                                    1/1     Running       9 (52m ago)    1d
kube-system     kube-proxy-mmsbf                                    1/1     Running       10 (52m ago)   1d
kube-system     kube-proxy-zh22k                                    1/1     Running       0              1d
kube-system     kube-scheduler-ubuntu                               1/1     Running       0              1d
kube-system     weave-net-94f8g                                     2/2     Running       24 (52m ago)   1d
kube-system     weave-net-gszsj                                     2/2     Running       30 (51m ago)   1d
kube-system     weave-net-hxknh                                     2/2     Running       1 (99d ago)    1d

참고

https://kubernetes.io/ko/docs/tasks/tools/install-kubectl-windows/

https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clusters/

1. etcdctl leader 및 list 조회 명령어 입력시 Error: context deadline exceeded 발생할 경우 cacert, cert, key를 입력해준다.

# 아래 명령어 중 하나 사용
etcdctl member list --cacert="/etc/kubernetes/pki/etcd/ca.crt" --cert="/etc/kubernetes/pki/etcd/peer.crt" --key="/etc/kubernetes/pki/etcd/peer.key"
etcdctl endpoint status --cluster --cacert="/etc/kubernetes/pki/etcd/ca.crt" --cert="/etc/kubernetes/pki/etcd/peer.crt" --key="/etc/kubernetes/pki/etcd/peer.key"
or
etcdctl member list --cacert="/etc/kubernetes/pki/etcd/ca.crt" --cert="/etc/kubernetes/pki/etcd/server.crt" --key="/etc/kubernetes/pki/etcd/server.key"
etcdctl endpoint status --cluster --cacert="/etc/kubernetes/pki/etcd/ca.crt" --cert="/etc/kubernetes/pki/etcd/server.crt" --key="/etc/kubernetes/pki/etcd/server.key"

2. etcdctl 사용시 open /etc/kubernetes/pki/etcd/ca.crt: permission denied 발생할 경우

kube-system의 etcd 버전과 맞춰준다.

cat /etc/kubernetes/manifests/etcd.yaml | grep image
# image: image: registry.k8s.io/etcd:3.5.9-0 
# 위 image 버전확인 후 etcdctl 다운
# https://github.com/etcd-io/etcd/releases
curl https://storage.googleapis.com/etcd/v3.5.9/etcd-v3.5.9-linux-amd64.tar.gz -o ./etcd-v3.5.9-linux-amd64.tar.gz

1. pods 전체삭제

 # Pods 전체 삭제
 kubectl delete pods --all --all-namespaces
 kubectl delete pods --all -A
 
 # Namespace 별 삭제
 kubectl delete pods --all -n test

2. pods 특정 이름으로 삭제

<namespace> 자리에 namespace 입력 - test

/application/ 자리에 삭제할 이름 입력 - /nginx/

kubectl get pods -n <namespace> --no-headers=true | awk '/application/{print $1}'| xargs  kubectl delete -n <namespace> pod

#namesapce가 test이고 test namespace안에 nginx라는 이름이 들어가는 pods 전체 삭제
kubectl get pods -n test --no-headers=true | awk '/nginx/{print $1}'| xargs  kubectl delete -n test pod

참고 : 

https://www.baeldung.com/linux/kubernetes-delete-all-pods

https://stackoverflow.com/questions/59473707/kubernetes-pod-delete-with-pattern-match-or-wildcard

Javscript로 동적으로 CSS추가가 필요할 경우 document.createElement("style") 을 통해 가능하다.

아래와같이 적용할 경우 버튼태그가 testBtn인경우(<button id="testBtn">) 빨간색 및 테두리가 생기는 CSS Style이

head태그쪽에 생성된다.

let testStyle = document.createElement("style")

let testBtn = `#testcss {
	border: solid;
    color : red;
}`

testStyle.appendChild(document.createTextNode(testBtn))
document.head.appendChild(testStyle)

Nginx의 auth_request 기능을 사용하고 싶었지만, apache에는 이와 비슷한 기능이 없는 것 같아

AuthType이라는것을 사용하였다.

1. 사용전 htpasswd 확인

htpasswd는 기본적으로 Apach생성 경로의 bin폴더에 있다.

# Apache 가 /usr/local 폴더에 있을경우
/usr/local/apache/bin/htpasswd

bin폴더에 없을경우 httpd를 설치한다. - https://httpd.apache.org/download.cgi#apache24

2. htpasswd를 통해 계정과 비밀번호를 생성

-c 는 create 옵션이고 /home/test 폴더 내에 .htpasswd 파일을 생성하고

해당 파일에 user1이라는 계정과 패스워드를 관리한다

# Input
./htpasswd -c /home/test/.htpasswd user1

# Output
cat /home/test.htpasswd
user1:$apr1$.0CAabqX$rsdf8sdSDFgs/p90SDGcvb1Gs/

3. AuthType 설정

사용 중인 conf파일에 설정 후 아파치 재시작한다.

<Location "/private">

AuthType Basic
AuthName "Authentication required"
AuthUserFile /home/test/.htpasswd
Require valid-uesr

</Location>

기타.

이렇게 설정할 경우 기본적으로 웹사이트에 로그인하는 로직이 있다면 해당 세션이 끊기게되는데

아래 설정을 추가할 경우 해결할 수 있긴하다.

RequestHeader unset Authorization
<Location "/private">

AuthType Basic
AuthName "Authentication required"
AuthUserFile /home/test/.htpasswd
Require valid-uesr

</Location>

https://httpd.apache.org/docs/2.4/en/howto/auth.html

Version

- Ubuntu 20.04

- Docker 24.0.5

- kubernetes 1.28.0

※ Master 1대 Woker 2대

1. 전부 root 계정으로 시작한다.

sudo -i

2. 모든 서버 Hostname 변경

변경 안 할 시 node 등록할 때 에러 발생

# Master server 1
hostnamectl set-hostname Master

# Worker server 1
hostnamectl set-hostname Node1

# Worker server 2
hostnamectl set-hostname Node2

3. Docker 설치 (Master, Woker 전부 진행)

apt-get update

apt-get install \
    ca-certificates \
    curl \
    gnupg \
    lsb-release

curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg

 echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu \
  $(lsb_release -cs) stable" | sudo tee /etc/apt/sources.list.d/docker.list > /dev/null

apt-get update
# 도커까지 설치
apt-get install docker-ce docker-ce-cli containerd.io

# containerd만 설치할경우
apt-get install containerd.io

모든 서버에 설치 후 Docker Version 확인

 docker version

4. Kubernetes (k8s) 설치 (Master, Worker 전부 실행)

swapoff -a && sudo sed -i '/swap/s/^/#/' /etc/fstab

iptable 설정

cat <<EOF | sudo tee /etc/modules-load.d/k8s.conf
br_netfilter
EOF

cat <<EOF | sudo tee /etc/sysctl.d/k8s.conf
net.bridge.bridge-nf-call-ip6tables = 1
net.bridge.bridge-nf-call-iptables = 1
EOF

sysctl --system

kubectl, kubeadm, kubelet 설치

(2024.03.12 기준 https://kubernetes.io/blog/2023/08/15/pkgs-k8s-io-introduction/#how-to-migrate 해당URL을 보고 curl 과 deb 설정한다)

apt-get update
apt-get install -y apt-transport-https ca-certificates curl

curl -fsSL https://packages.cloud.google.com/apt/doc/apt-key.gpg| gpg -o /usr/share/keyrings/kubernetes-archive-keyring.gpg --dearmor

echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list

apt-get update
apt-get install -y kubelet kubeadm kubectl

apt-mark hold kubelet kubeadm kubectl

systemctl daemon-reload
systemctl restart kubelet

5. kubeadm init (Master에만 진행)

kubeadm init 실행시 아래 에러 발생

unix:///var/run/containerd/containerd.sock\": rpc error: code = Unimplemented desc = unknown service runtime.v1.RuntimeService" 

참고 : https://kubernetes.io/docs/setup/production-environment/container-runtimes/

(Configuring the systemd cgroup driver의 Note 부분 참고)

해당 작업만 모든 서버(Master, Worker에서 진행)

# 해당작업만 모든 서버(Master, Worker)에서 진행
containerd config default > /etc/containerd/config.toml
sed -i 's/SystemdCgroup = false/SystemdCgroup = true/g' /etc/containerd/config.toml
systemctl restart containerd

작업 후 아래 명령어 진행

kubeadm init

정상적으로 성공할 경우 아래 값 반환 해당값 메모장에 임시 저장

kubeadm join 192.x.x.x:6443 --token c5l89v.9ao1r5texepx06d8 \
	--discovery-token-ca-cert-hash sha256:50cb3eaxe334612e81c2342790130801afd70ddb9967a06bb0b202141748354f

모든 User를 위해 명령어 등록

mkdir -p $HOME/.kube
cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
chown $(id -u):$(id -g) $HOME/.kube/config

6. Pod Network 설치 (Master에서만 진행)

https://cloud.weave.works 서버가 이상하므로 github에서 다운받는다. 현재 작성일 기준 2.8.1이 최신

kubectl apply -f https://github.com/weaveworks/weave/releases/download/v2.8.1/weave-daemonset-k8s-1.11.yaml

7. Node 등록 (Woker에서만 진행)

5번에서 저장한 kubeadm join 입력

kubeadm join 192.x.x.x:6443 --token c5l89v.9ao1r5texepx06d8 \
	--discovery-token-ca-cert-hash sha256:50cb3eaxe334612e81c2342790130801afd70ddb9967a06bb0b202141748354f

8. Master에서 확인

Master에서 아래 명령어 실행

kubectl get nodes -o wide

해당 가이드대로 진행하였으면 아래 사진에서 ubuntu -> master로 나와야함

Java에서 Inner Class 사용시 발생하는 No enclosing instance of type is accessible 해결 방법이다.

아래와 같이 java 파일들이 구성되어있고 Hello.java 파일안에 World 라는 inner class가 있을 경우

public class Hello {
	private int id;

	public Hello() {
		super();
	}

	public Hello(int id) {
		super();
		this.id = id;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public class World {		
		private String name;

		public World() {
			super();
		}

		public World(String name) {
			super();
			this.name = name;
		}

		public String getName() {
			return name;
		}

		public void setName(String name) {
			this.name = name;
		}			
		
	}
}

Hello안에있는 World Class를 사용하기 위해서 Hello Class를 먼저 생성 후 World Class를 호출한다.

import test3.Hello.World;

public class Main {

	public static void main(String[] args) {

		Hello hello = new Hello();
		World world = hello.new World();
				
	}

}

다운로드 - https://github.com/wonkwangyeon/Add-Windows-Run/releases

git source - https://github.com/wonkwangyeon/Add-Windows-Run

Winodws 의 실행에서 파일을 실행하기위해 레지스트리를 편집해서 작성해야하지만

해당 프로그램을 이용하면 레지스트리 편집기를 열지않아도 추가가능하며,

어느것을 추가했는지 관리가능하며, 삭제까지 가능한 프로그램.

1. 소개

Windows의 실행에서 파일을 실행할 수 있도록 등록 및 관리하는 프로그램

사용언어 - Python

사용 DB - SqlLite

2. 기능

• 실행할 파일 레지스트리에 추가
• 추가한 파일 삭제

3. 사용방법

1. 추가

• Run Name :
  • 실행에서 파일을 실행할 명령어 등록 ex) vscode.exe
• Run File Path :
  • 실행 파일이 위치한 폴더 경로 ex) C:\Users\VSCode
• Run File.exe :
  • 실제 exe 파일 ex) Code.exe

1. 삭제

• 삭제할 항목 클릭 후 Delete 버튼 클릭

1. 확인

• 실행창에서 등록한 명령어를 통해 실행확인

• 레지스트리편집기에서 추가 및 삭제 확인

1. 실행 및 실패 로그는 4번의 DB 및 Log경로에서 확인가능

4. DB 및 Log 경로

C:\addWindowsRun

• DB.log
  • DB 실행 로그
• AddWindowsRun.log
  • 프로그램 시작 로그
• Run.log
  • 실행 로그
• addWindowsRun.db
  • 추가한 파일 및 경로를 저장하는 DB

Nginx에서 client에서 파일 업로드와 같은 작업 수행시

응답으로는 이미 max_client_body_size 설정으로 에러인 상황에서 Request가 중단되어야하지만

Request가 끝까지 진행되는 경우가 있는데

이 경우 send_timeout, proxy_send_timeout, proxy_connect_timeout, client_body_timeout 등의 설정이아니라

lingering_time으로 설정해야한다.

Syntax:	lingering_time time;
Default: lingering_time 30s;
Context: http, server, location

This directive applies to client requests with a request body. As soon as the number of uploaded data exceeds max_client_body_size, Nginx immediately sends a 413 Request entity too large HTTP error response. However, most browsers continue uploading data regardless of that notification. This directive defines the number of time Nginx should wait after sending this error response before closing the connection.

http://nginx.org/en/docs/http/ngx_http_core_module.html#lingering_time

https://www.oreilly.com/library/view/nginx-http-server/9781788623551/97c141a3-0e51-4786-b865-8c8770a643a5.xhtml

Maven, Npm - 2020.12.05 - [Develop/기타 작업] - Nexus bulk upload (Nexus 대량 업로드)

whl확장자로 되어있는 Python Package Upload 를 위해서는 Python Package 중 twine 이라는 Package를 이용한다.

1. 인터넷이 되는 환경에서는 아래 명령어로 설치하면된다.

pip install twine

2. 인터넷이 되지 않는 Offline 환경에서는 먼저 인터넷이 되는 환경에서 whl파일을 내려받아야한다.

아래명령어를 통해 twine 설치에 필요한 패키지들을 전부 받는다. 

pip download -d . twine

받고난 뒤 설치하면 패키지가 3개정도 없다고 나오는데 (twine 4.0.3버전 기준) 

해당 패키지 3개 또한 https://pypi.org/project/ 에서 whl 파일을 미리 받아서 Offline 환경으로 반입한다.

없는 패키지 목록은 아래와 같다

pypiwin32-223-py3-none-any.whl
pywin32_ctypes-0.2.0-py2.py3-none-any.whl
charset_normalizer-3.1.0-py3-none-any.whl

3. Offline 환경에서 아래 명령어를 입력한다.

pip install --no-index -f . twine

만약 설치 후 없는 파일이 존재하면 마찬가지로 반입하여 설치하면된다.

4. 설치 후에 .pypi 파일을 작성한다

'C:\Users\window계정' 해당 경로에 .pypi를 작성한다.

[distutils]
index-servers =
    nexuslabel


[nexuslabel]
repository : http://nexus.url
username : id
password : pw

5. 업로드할 whl 폴더에 터미널을 열어 아래의 명령어를 실행한다.

만약 whl 파일들이 폴더안에 아무런 폴더구조를 가지지 않으면 ./* 로 실행하고

폴더 구조를 2단계로 가지고 있으면 ./*/* (e.g. test/test.whl)

폴더 구조를 3단계로 가지고 있으면 ./*/*/* (e.g. test/2.0/test.whl)

로 실행한다

twine upload --repository nexuslabel ./*