[kubernetes] Kubernetes에서 Ingress 와 Tomcat 연동

개요

구성환경

 

1. Tomcat 이미지 다운로드

shell> docker pull tomcat:8.5.53

2. 배치 생성

shell> kubectl apply -f tomcatproject1-deployment.yaml

- tomcatproject1-deployment.yaml

apiVersion: apps/v1 kind: Deployment metadata:   name: tomcatproject1-deployment   labels:     app: tomcatproject1 spec:   replicas: 1   selector:     matchLabels:       app: tomcatproject1   template:     metadata:       labels:         app: tomcatproject1     spec:       containers:       - name: tomcatproject1         image: tomcat:8.5.53         env:         - name: JAVA_OPTS           value: "-Xms512m -Xmx512m"         ports:         - containerPort: 8080         volumeMounts:         - name: projectvol1           mountPath: /usr/local/tomcat/webapps           readOnly: false       volumes:       - name : projectvol1         hostPath:           path: /var/lib/tomcat

3. 서비스 생성

shell> kubectl expose deploy tomcatproject1-deployment --type=LoadBalancer

4. ingress 작성

shell> kubectl apply -f ingress-sample.yaml

- ingress-sample.yaml

apiVersion: extensions/v1beta1 kind: Ingress metadata:   name: hoya-com-tomcat-ingress   annotations: spec:   rules:   - host: www.hoya.com     http:       paths:       - path: /         backend:           serviceName: tomcatproject1-deployment           servicePort: 8080

5. 어플리케이션 배포

예시) apache-tomcat-8.5.54.tar.gz 파일의 webapps 디렉토리 아래의 examples 폴더를 로컬 파일시스템의 /var/lib/tomcat 폴더로 복사

shell> tar zxvf apache-tomcat-8.5.54.tar.gz shell> cd apache-tomcat-8.5.54/ shell> cd webapps/ shell> cp -rP examples/ /var/lib/tomcat/

6. 테스트

shell> curl http://www.hoya.com/examples/