FQDN (파드 속에서만 사용) : 파드가 서비스주소와 포트번호를 모를 때 (환경변수에 없음) --> 의미 : 파드생성 --> 서비스 생성 서비스주소와 포트를 알기 위해서 파드는 자신의 서비스명을 가지고 resolv.conf에 있는 dns서버 주소에 FQDN값으로 요청 --> 해당 DNS(kubedns ---> coredns 들에게 분기 --> ip+포트 --.> 파드에게 전달 --> 받은 주소로 접속(: 서비스 주소) --> 적정한 파드로 트래픽전달 --> 그 파드가 사이트화면을 열어줌 metalLB : 쿠버네티스 전용 로드밸런서 bare-metal 기반의 로드밸런서 * bare-metal? 하드웨서 속에 직접 운영체제를 설치하는 방식 -> 하이퍼바이저 등이나 로컬호스트 os의 제약사항을 받지 않을 수 있다. (= 가상화 없이 물리 서버에서 직접 클러스터를 구성하여 자원을 관리) metalLB를 설치하려는 이유? nodeport 방식의 서비스 -> 192.168.56.100:30123 또는 192.168.56.101:30123로 접속을 했다. : 접속시 서버가 죽은 ip로 접속할 경우 서비가 중단되므로 이를 방지하기 위하여 metalLB를 설치하는 것 ippool생성 이유? 해당 아이피 대역에 광고하기 위해서 |
< POD가 서비스의 IP(CLUSTER-IP)와 PORT를 어떻게 알 수 있을까?>
더보기
[root@k8smaster ~]# k describe node k8smaster | grep Taint
Taints: node-role.kubernetes.io/control-plane:NoSchedule
[root@k8smaster ~]# k taint nodes k8smaster node-role.kubernetes.io/control-plane:NoSchedule-
node/k8smaster untainted
[root@k8smaster ~]# k get pods
NAME READY STATUS RESTARTS AGE
guestbook-bb58v 1/1 Running 1 (41m ago) 17h
guestbook-fbm7z 1/1 Running 1 (41m ago) 17h
guestbook-qnm2c 1/1 Running 1 (41m ago) 17h
[root@k8smaster ~]# k describe node k8smaster | grep Taint
Taints: <none>
[root@k8smaster ~]# k get pods
No resources found in default namespace
-> 노드의 현재 taint 상태를 확인
-> 특정 taint를 제거
* k8smaster 노드는 더 이상 NoSchedule taint가 적용되지 않아, 스케줄링이 가능
<POD 내부에서FQDN을 이용한 서비스검색>
[root@k8smaster ~]# k get pods
NAME READY STATUS RESTARTS AGE
guestbook-bb58v 1/1 Running 1 (56m ago) 17h
guestbook-fbm7z 1/1 Running 1 (56m ago) 17h
guestbook-qnm2c 1/1 Running 1 (56m ago) 17h
# POD안의 컨테이너에서 FQDN을 이용한 서비스접속
[root@k8smaster ~]# kubectl exec -it guestbook-bb58v -- bash
root@guestbook-bb58v:/app# curl http://guestbook.default.svc.cluster.local
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="/common.css" rel="stylesheet">
<link href="/guestbook.css" rel="stylesheet">
<title>방명록 (K8S)</title>
</head>
<body>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="memo">
HealthCheck : This is v1 running in pod guestbook-fbm7z (10.102.249.24)
</p>
</li>
</ul>
</div>
<h4 class="g-top">방명록 v1(정환열)</h4>
<div class="top-img">
<img src="/bg-guestbook.jpg">
</div>
<form action="/" method="post" id="frm" enctype="multipart/form-data">
<div class="g-cont">
<ul>
<li class="name"><input name="name" type="text" maxlength="20" placeholder="이름" class="form-control"></li>
<li class="msg"><textarea name="content" maxlength="200" placeholder="내용을 입력해주세요" class="form-control" rows="3"></textarea></li>
<li>파일첨부<input type="file" name="uploadingFile"></li>
</ul>
<p class="btn btn-lg" onclick="document.getElementById('frm').submit();">방명록 남기기</p>
</div>
</form>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="name">최유진</p>
<p class="date">2024-09-25 03:43:41</p>
<p class="memo">방명록</p>
첨부파일 : <a href="/downloadFile/null"></a>
</li>
</ul>
</div>
</body>
</html>root@guestbook-bb58vcurl http://guestbook.defaultdefault
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="/common.css" rel="stylesheet">
<link href="/guestbook.css" rel="stylesheet">
<title>방명록 (K8S)</title>
</head>
<body>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="memo">
HealthCheck : This is v1 running in pod guestbook-bb58v (10.102.249.27)
</p>
</li>
</ul>
</div>
<h4 class="g-top">방명록 v1(정환열)</h4>
<div class="top-img">
<img src="/bg-guestbook.jpg">
</div>
<form action="/" method="post" id="frm" enctype="multipart/form-data">
<div class="g-cont">
<ul>
<li class="name"><input name="name" type="text" maxlength="20" placeholder="이름" class="form-control"></li>
<li class="msg"><textarea name="content" maxlength="200" placeholder="내용을 입력해주세요" class="form-control" rows="3"></textarea></li>
<li>파일첨부<input type="file" name="uploadingFile"></li>
</ul>
<p class="btn btn-lg" onclick="document.getElementById('frm').submit();">방명록 남기기</p>
</div>
</form>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="name">최유진</p>
<p class="date">2024-09-25 03:43:41</p>
<p class="memo">방명록</p>
첨부파일 : <a href="/downloadFile/null"></a>
</li>
</ul>
</div>
</body>
</html>root@guestbook-bb58v:/app# curl http://guestbook
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="/common.css" rel="stylesheet">
<link href="/guestbook.css" rel="stylesheet">
<title>방명록 (K8S)</title>
</head>
<body>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="memo">
HealthCheck : This is v1 running in pod guestbook-fbm7z (10.102.249.24)
</p>
</li>
</ul>
</div>
<h4 class="g-top">방명록 v1(정환열)</h4>
<div class="top-img">
<img src="/bg-guestbook.jpg">
</div>
<form action="/" method="post" id="frm" enctype="multipart/form-data">
<div class="g-cont">
<ul>
<li class="name"><input name="name" type="text" maxlength="20" placeholder="이름" class="form-control"></li>
<li class="msg"><textarea name="content" maxlength="200" placeholder="내용을 입력해주세요" class="form-control" rows="3"></textarea></li>
<li>파일첨부<input type="file" name="uploadingFile"></li>
</ul>
<p class="btn btn-lg" onclick="document.getElementById('frm').submit();">방명록 남기기</p>
</div>
</form>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="name">최유진</p>
<p class="date">2024-09-25 03:43:41</p>
<p class="memo">방명록</p>
첨부파일 : <a href="/downloadFile/null"></a>
</li>
</ul>
</div>
</body>
</html>root@guestbook-bb58v:/app# cat /etc/resolv.conf
search default.svc.cluster.local svc.cluster.local cluster.local
nameserver 10.96.0.10
options ndots:5
root@guestbook-bb58v:/app# exit
exit
[root@k8smaster ~]# k get ns
NAME STATUS AGE
default Active 279d
kube-node-lease Active 279d
kube-public Active 279d
kube-system Active 279d
kubernetes-dashboard Active 4d22h
shopping-mall Active 3d17h
# kube-dns ip주소 확인
[root@k8smaster ~]# k get svc -n kube-system
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kube-dns ClusterIP 10.96.0.10 <none> 53/UDP,53/TCP,9153/TCP 279d
metrics-server ClusterIP 10.111.112.94 <none> 443/TCP 4d22h
[root@k8smaster ~]# k describe svc kube-dns -n kube-system
Name: kube-dns
Namespace: kube-system
Labels: k8s-app=kube-dns
kubernetes.io/cluster-service=true
kubernetes.io/name=CoreDNS
Annotations: prometheus.io/port: 9153
prometheus.io/scrape: true
Selector: k8s-app=kube-dns
Type: ClusterIP
IP Family Policy: SingleStack
IP Families: IPv4
IP: 10.96.0.10
IPs: 10.96.0.10
Port: dns 53/UDP
TargetPort: 53/UDP
Endpoints: 10.98.16.151:53,10.98.16.152:53
Port: dns-tcp 53/TCP
TargetPort: 53/TCP
Endpoints: 10.98.16.151:53,10.98.16.152:53
Port: metrics 9153/TCP
TargetPort: 9153/TCP
Endpoints: 10.98.16.151:9153,10.98.16.152:9153
Session Affinity: None
Events: <none>
[root@k8smaster ~]# k get pods -o wide -n kube-system
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
calico-kube-controllers-7c968b5878-8w2m5 1/1 Running 7 (63m ago) 279d 10.98.16.150 k8smaster <none> <none>
calico-node-2q72n 1/1 Running 7 (63m ago) 279d 192.168.56.100 k8smaster <none> <none>
calico-node-dhs52 1/1 Running 13 (63m ago) 279d 192.168.56.101 k8snode1 <none> <none>
coredns-5dd5756b68-lxcrj 1/1 Running 7 (63m ago) 279d 10.98.16.152 k8smaster <none> <none>
coredns-5dd5756b68-wbs6p 1/1 Running 7 (63m ago) 279d 10.98.16.151 k8smaster <none> <none>
etcd-k8smaster 1/1 Running 7 (63m ago) 279d 192.168.56.100 k8smaster <none> <none>
kube-apiserver-k8smaster 1/1 Running 7 (63m ago) 279d 192.168.56.100 k8smaster <none> <none>
kube-controller-manager-k8smaster 1/1 Running 7 (63m ago) 279d 192.168.56.100 k8smaster <none> <none>
kube-proxy-j4dsf 1/1 Running 7 (63m ago) 279d 192.168.56.100 k8smaster <none> <none>
kube-proxy-s59th 1/1 Running 13 (63m ago) 279d 192.168.56.101 k8snode1 <none> <none>
kube-scheduler-k8smaster 1/1 Running 7 (63m ago) 279d 192.168.56.100 k8smaster <none> <none>
metrics-server-6d857ffdc9-zdk82 1/1 Running 1 (63m ago) 23h 10.102.249.62 k8snode1 <none> <none>
metrics-server-75bf97fcc9-snsmv 0/1 Running 1 (63m ago) 23h 10.102.249.5 k8snode1 <none> <none>
-> 현재의 pod가 자기를 열지 않았다. service guestbook에 요청을 해서 다른 파드 또는 자기 파드가 열릴 수 있다.
ip를 pod에 전달 -> guestbook service에 전달
[root@k8smaster ~]# k get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
guestbook ClusterIP 10.101.209.250 <none> 80/TCP 18h
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 19h
[root@k8smaster ~]# curl 10.101.209.250
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="/common.css" rel="stylesheet">
<link href="/guestbook.css" rel="stylesheet">
<title>방명록 (K8S)</title>
</head>
<body>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="memo">
HealthCheck : This is v1 running in pod guestbook-bb58v (10.102.249.27)
</p>
</li>
</ul>
</div>
<h4 class="g-top">방명록 v1(정환열)</h4>
<div class="top-img">
<img src="/bg-guestbook.jpg">
</div>
<form action="/" method="post" id="frm" enctype="multipart/form-data">
<div class="g-cont">
<ul>
<li class="name"><input name="name" type="text" maxlength="20" placeholder="이름" class="form-control"></li>
<li class="msg"><textarea name="content" maxlength="200" placeholder="내용을 입력해주세요" class="form-control" rows="3"></textarea></li>
<li>파일첨부<input type="file" name="uploadingFile"></li>
</ul>
<p class="btn btn-lg" onclick="document.getElementById('frm').submit();">방명록 남기기</p>
</div>
</form>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="name">최유진</p>
<p class="date">2024-09-25 03:43:41</p>
<p class="memo">방명록</p>
첨부파일 : <a href="/downloadFile/null"></a>
</li>
</ul>
</div>
</body>
-> gestbook clusterIP (=가상의 내부 IP) 주소는 외부에서(localhost) 열 수 없다. ( 내부에서는 열 수 있다 - node와 pod간의 연결을 가능하다. )
< NodePort 서비스사용>
</html>[root@k8smaster ~]# cd ~/lab/05
[root@k8smaster 05]# ls
guestbook-rc-readinessprobe.yaml guestbook-svc-loadbalancer.yaml guestbook-svc.yaml named-port
guestbook-replicaset.yaml guestbook-svc-named-ports.yaml ingress
guestbook-svc-client-ip-session-affinity.yaml guestbook-svc-nodeport.yaml metalLB
[root@k8smaster 05]# k create -f guestbook-svc-nodeport.yaml
service/guestbook-nodeport created
[root@k8smaster 05]# k get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
guestbook ClusterIP 10.101.209.250 <none> 80/TCP 18h
guestbook-nodeport NodePort 10.105.204.19 <none> 80:30123/TCP 8s
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 19h
[root@k8smaster 05]# k describe svc guestbook-nodeport
Name: guestbook-nodeport
Namespace: default
Labels: <none>
Annotations: <none>
Selector: app=guestbook
Type: NodePort
IP Family Policy: SingleStack
IP Families: IPv4
IP: 10.105.204.19
IPs: 10.105.204.19
Port: <unset> 80/TCP
TargetPort: 8080/TCP
NodePort: <unset> 30123/TCP
Endpoints: 10.102.249.24:8080,10.102.249.27:8080,10.102.249.33:8080
Session Affinity: None
External Traffic Policy: Cluster
Events: <none>
[root@k8smaster 05]# curl 10.105.204.19
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="/common.css" rel="stylesheet">
<link href="/guestbook.css" rel="stylesheet">
<title>방명록 (K8S)</title>
</head>
<body>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="memo">
HealthCheck : This is v1 running in pod guestbook-qnm2c (10.102.249.33)
</p>
</li>
</ul>
</div>
<h4 class="g-top">방명록 v1(정환열)</h4>
<div class="top-img">
<img src="/bg-guestbook.jpg">
</div>
<form action="/" method="post" id="frm" enctype="multipart/form-data">
<div class="g-cont">
<ul>
<li class="name"><input name="name" type="text" maxlength="20" placeholder="이름" class="form-control"></li>
<li class="msg"><textarea name="content" maxlength="200" placeholder="내용을 입력해주세요" class="form-control" rows="3"></textarea></li>
<li>파일첨부<input type="file" name="uploadingFile"></li>
</ul>
<p class="btn btn-lg" onclick="document.getElementById('frm').submit();">방명록 남기기</p>
</div>
</form>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="name">최유진</p>
<p class="date">2024-09-25 03:43:41</p>
<p class="memo">방명록</p>
첨부파일 : <a href="/downloadFile/null"></a>
</li>
</ul>
</div>
</body>
</html>[root@k8smaster 05]# curl 10.102.249.24:8080
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="/common.css" rel="stylesheet">
<link href="/guestbook.css" rel="stylesheet">
<title>방명록 (K8S)</title>
</head>
<body>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="memo">
HealthCheck : This is v1 running in pod guestbook-fbm7z (10.102.249.24)
</p>
</li>
</ul>
</div>
<h4 class="g-top">방명록 v1(정환열)</h4>
<div class="top-img">
<img src="/bg-guestbook.jpg">
</div>
<form action="/" method="post" id="frm" enctype="multipart/form-data">
<div class="g-cont">
<ul>
<li class="name"><input name="name" type="text" maxlength="20" placeholder="이름" class="form-control"></li>
<li class="msg"><textarea name="content" maxlength="200" placeholder="내용을 입력해주세요" class="form-control" rows="3"></textarea></li>
<li>파일첨부<input type="file" name="uploadingFile"></li>
</ul>
<p class="btn btn-lg" onclick="document.getElementById('frm').submit();">방명록 남기기</p>
</div>
</form>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="name">최유진</p>
<p class="date">2024-09-25 03:43:41</p>
<p class="memo">방명록</p>
첨부파일 : <a href="/downloadFile/null"></a>
</li>
</ul>
</div>
</body>
-> node 포트로도 접속 가능하다.
<k8snode1접속>
<localhost 접속>
<yaml 파일을 사용해MetalLB 설치> - Kubernetes에서 MetalLB는 클러스터 외부에서 접근할 수 있는 LoadBalancer 서비스를 제공하기 위해 설치
</html>[root@k8smaster 05]# cd metalLB
[root@k8smaster metalLB]# kubectl create -f metallb-native.yaml
namespace/metallb-system created
customresourcedefinition.apiextensions.k8s.io/addresspools.metallb.io created
customresourcedefinition.apiextensions.k8s.io/bfdprofiles.metallb.io created
customresourcedefinition.apiextensions.k8s.io/bgpadvertisements.metallb.io created
customresourcedefinition.apiextensions.k8s.io/bgppeers.metallb.io created
customresourcedefinition.apiextensions.k8s.io/communities.metallb.io created
customresourcedefinition.apiextensions.k8s.io/ipaddresspools.metallb.io created
customresourcedefinition.apiextensions.k8s.io/l2advertisements.metallb.io created
serviceaccount/controller created
serviceaccount/speaker created
role.rbac.authorization.k8s.io/controller created
role.rbac.authorization.k8s.io/pod-lister created
clusterrole.rbac.authorization.k8s.io/metallb-system:controller created
clusterrole.rbac.authorization.k8s.io/metallb-system:speaker created
rolebinding.rbac.authorization.k8s.io/controller created
rolebinding.rbac.authorization.k8s.io/pod-lister created
clusterrolebinding.rbac.authorization.k8s.io/metallb-system:controller created
clusterrolebinding.rbac.authorization.k8s.io/metallb-system:speaker created
secret/webhook-server-cert created
service/webhook-service created
deployment.apps/controller created
daemonset.apps/speaker created
validatingwebhookconfiguration.admissionregistration.k8s.io/metallb-webhook-configuration created
[root@k8smaster metalLB]# ls
metallb-ippool.yaml metallb-l2advertisement.yaml metallb-native.yaml
[root@k8smaster metalLB]# k get ns
NAME STATUS AGE
default Active 280d
kube-node-lease Active 280d
kube-public Active 280d
kube-system Active 280d
kubernetes-dashboard Active 5d20h
metallb-system Active 2m43s
shopping-mall Active 3d22h
# 외부공개용IP Address Pool 생성
[root@k8smaster metalLB]# k create -f metallb-ippool.yaml
ipaddresspool.metallb.io/ip-pool created
# Layer 2에서 사용한 NIC 인터페이스설정
[root@k8smaster metalLB]# kubectl create -f metallb-l2advertisement.yaml
# “metallb-system” 네임스페이스에 생성된 쿠버네티스 리소스 조회
[root@k8smaster metalLB]# k -n metallb-system get all
NAME READY STATUS RESTARTS AGE
pod/controller-67d9f4b5bc-7pgdk 1/1 Running 0 115s
pod/speaker-6rn9g 1/1 Running 0 115s
pod/speaker-tzdrl 1/1 Running 0 115s
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/webhook-service ClusterIP 10.98.171.102 <none> 443/TCP 115s
NAME DESIRED CURRENT READY UP-TO-DATE AVAILABLE NODE SELECTOR AGE
daemonset.apps/speaker 2 2 2 2 2 kubernetes.io/os=linux 115s
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/controller 1/1 1 1 115s
NAME DESIRED CURRENT READY AGE
replicaset.apps/controller-67d9f4b5bc 1 1 1 115s
< 외부 로드 밸런서>
[root@k8smaster 05]# k create -f guestbook-svc-loadbalancer.yaml
service/guestbook-loadbalancer created
[root@k8smaster 05]# k get svc guestbook-loadbalancer
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
guestbook-loadbalancer LoadBalancer 10.101.124.39 192.168.56.201 80:31116/TCP 17s
[root@k8smaster 05]# k describe svc guestbook-loadbalancer
Name: guestbook-loadbalancer
Namespace: default
Labels: <none>
Annotations: <none>
Selector: app=guestbook
Type: LoadBalancer
IP Family Policy: SingleStack
IP Families: IPv4
IP: 10.101.124.39
IPs: 10.101.124.39
LoadBalancer Ingress: 192.168.56.201
Port: <unset> 80/TCP
TargetPort: 8080/TCP
NodePort: <unset> 31116/TCP
Endpoints: 10.98.16.177:8080,10.98.16.178:8080,10.98.16.181:8080
Session Affinity: None
External Traffic Policy: Cluster
Events:
Type Reason Age From Message
---- ------ ---- ---- -------
Normal IPAllocated 44s metallb-controller Assigned IP ["192.168.56.201"]
[root@k8smaster 05]# k get svc
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
guestbook ClusterIP 10.101.209.250 <none> 80/TCP 23h
guestbook-loadbalancer LoadBalancer 10.101.124.39 192.168.56.201 80:31116/TCP 2m41s
guestbook-nodeport NodePort 10.105.204.19 <none> 80:30123/TCP 4h54m
kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 24h
[root@k8smaster 05]# curl http://10.101.124.39
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="/common.css" rel="stylesheet">
<link href="/guestbook.css" rel="stylesheet">
<title>방명록 (K8S)</title>
</head>
<body>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="memo">
HealthCheck : This is v1 running in pod guestbook-7nbrc (10.98.16.178)
</p>
</li>
</ul>
</div>
<h4 class="g-top">방명록 v1(정환열)</h4>
<div class="top-img">
<img src="/bg-guestbook.jpg">
</div>
<form action="/" method="post" id="frm" enctype="multipart/form-data">
<div class="g-cont">
<ul>
<li class="name"><input name="name" type="text" maxlength="20" placeholder="이름" class="form-control"></li>
<li class="msg"><textarea name="content" maxlength="200" placeholder="내용을 입력해주세요" class="form-control" rows="3"></textarea></li>
<li>파일첨부<input type="file" name="uploadingFile"></li>
</ul>
<p class="btn btn-lg" onclick="document.getElementById('frm').submit();">방명록 남기기</p>
</div>
</form>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="name">최유진</p>
<p class="date">2024-09-25 03:43:41</p>
<p class="memo">방명록</p>
첨부파일 : <a href="/downloadFile/null"></a>
</li>
</ul>
</div>
</body>
[root@k8smaster 05]# curl http://10.101.124.39
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<link href="/common.css" rel="stylesheet">
<link href="/guestbook.css" rel="stylesheet">
<title>방명록 (K8S)</title>
</head>
<body>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="memo">
HealthCheck : This is v1 running in pod guestbook-6dxw7 (10.98.16.146)
</p>
</li>
</ul>
</div>
<h4 class="g-top">방명록 v1(정환열)</h4>
<div class="top-img">
<img src="/bg-guestbook.jpg">
</div>
<form action="/" method="post" id="frm" enctype="multipart/form-data">
<div class="g-cont">
<ul>
<li class="name"><input name="name" type="text" maxlength="20" placeholder="이름" class="form-control"></li>
<li class="msg"><textarea name="content" maxlength="200" placeholder="내용을 입력해주세요" class="form-control" rows="3"></textarea></li>
<li>파일첨부<input type="file" name="uploadingFile"></li>
</ul>
<p class="btn btn-lg" onclick="document.getElementById('frm').submit();">방명록 남기기</p>
</div>
</form>
<div class="guestbook list displaynone" style="display: block;">
<ul class="cont">
<li>
<p class="name">최유진</p>
<p class="date">2024-09-25 03:43:41</p>
<p class="memo">방명록</p>
첨부파일 : <a href="/downloadFile/null"></a>
</li>
</ul>
</div>
</body>
-> 로컬에서 연결되는 것을 확인
| <미션> 서비스 리소스 생성 1. 디폴트로 생성 --> curl명령 또는 k8snode1에서 확인 2. nodeport 방식으로 서비스 생성 --> curl 명령을 통해 cluster IP 접속 / 로컬호스트 IP로 접속 (100/101:30123) 3. LoadBalancer 타입 생성 --> external IP 로 로컬 호스트에서 접속 테스트, nodeport 방식으로 접속 테스트, cluster IP로 접속 테스트 |
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