TL;DR
ex.
/deployment/config
/daemonset/config
/pod/config
etc...
Dockerfile
FROM frolvlad/alpine-glibc:alpine-3.9
###########################################################################
# variables:
###########################################################################
ENV JAVA_VERSION=8 \
JAVA_UPDATE=201 \
JAVA_BUILD=09 \
JAVA_PATH=42970487e3af4f5aa5bca3f542482c60 \
JAVA_HOME="/usr/lib/jvm/default-jvm" \
MYSQL_CONNECTOR_JAVA_VERSION=5.1.40
###########################################################################
# default:
###########################################################################
RUN apk add --no-cache tzdata bash dumb-init
###########################################################################
# jdk:
###########################################################################
RUN apk add --no-cache --virtual=build-dependencies wget ca-certificates unzip && \
cd "/tmp" && \
wget --header "Cookie: oraclelicense=accept-securebackup-cookie;" \
"http://download.oracle.com/otn-pub/java/jdk/${JAVA_VERSION}u${JAVA_UPDATE}-b${JAVA_BUILD}/${JAVA_PATH}/jdk-${JAVA_VERSION}u${JAVA_UPDATE}-linux-x64.tar.gz" && \
tar -xzf "jdk-${JAVA_VERSION}u${JAVA_UPDATE}-linux-x64.tar.gz" && \
mkdir -p "/usr/lib/jvm" && \
mv "/tmp/jdk1.${JAVA_VERSION}.0_${JAVA_UPDATE}" "/usr/lib/jvm/java-${JAVA_VERSION}-oracle" && \
ln -s "java-${JAVA_VERSION}-oracle" "$JAVA_HOME" && \
ln -s "$JAVA_HOME/bin/"* "/usr/bin/" && \
rm -rf "$JAVA_HOME/"*src.zip && \
wget --header "Cookie: oraclelicense=accept-securebackup-cookie;" \
"http://download.oracle.com/otn-pub/java/jce/${JAVA_VERSION}/jce_policy-${JAVA_VERSION}.zip" && \
unzip -jo -d "${JAVA_HOME}/jre/lib/security" "jce_policy-${JAVA_VERSION}.zip" && \
rm "${JAVA_HOME}/jre/lib/security/README.txt" && \
apk del build-dependencies && \
rm "/tmp/"*
###########################################################################
# Install mysql client & mysql-connector-java for hivemetastore
###########################################################################
RUN apk add --no-cache --no-progress mysql-client && \
apk add --no-cache --virtual=build-dependencies wget ca-certificates tar && \
wget -q -O - http://dev.mysql.com/get/Downloads/Connector-J/mysql-connector-java-${MYSQL_CONNECTOR_JAVA_VERSION}.tar.gz | tar -xzf - -C /tmp && \
mv /tmp/mysql-connector-java-${MYSQL_CONNECTOR_JAVA_VERSION}/mysql-connector-java-${MYSQL_CONNECTOR_JAVA_VERSION}-bin.jar ${JAVA_HOME}/lib && \
apk del build-dependencies && \
rm -rf /tmp/mysql-connector-java-${MYSQL_CONNECTOR_JAVA_VERSION}
ENV app_dir /opt/apps
WORKDIR ${app_dir}
COPY ./build/libs/test.jar .
COPY ./src/main/resources/log4j2.xml .
COPY ./src/main/resources/application.yml .
EXPOSE ####
COPY docker-entrypoint.sh /docker-entrypoint.sh
ENTRYPOINT ["/docker-entrypoint.sh"]
CMD ["java", "-jar", "-Dserver.port=####", "-Dlog4j.configurationFile=log4j2.xml", "test.jar"]
docker-entrypoint.sh
#!/usr/bin/dumb-init /bin/bash
set -e
if [ "${1:0:1}" = '-' ]; then
set -- java "@"
fi
exec "$@"
configmap.yml
apiVersion: v1
kind: ConfigMap
metadata:
name: application-yml
data:
application.yml: |+
server:
port: ####
datasource:
testCommonDb:
protocol: jdbc:mysql
host: 127.0.0.1
port: 3306
driverClassName: com.mysql.jdbc.Driver
database: ${ENV:dev}_test
username: ${MYSQL_USERNAME}
password: ${MYSQL_PASSWORD}
## NG!!!
・ ・ ・
command: ['java', '-jar', '-Dserver.port=####', '-Dlog4j.configurationFile=log4j2.xml', '-Dspring.config.location="file:/opt/apps/config/application.yml"', 'test.jar']
・ ・ ・
volumeMounts:
- name: application-yml-volume
mountPath: "/opt/apps/config"
readOnly: true
・ ・ ・
- name: application-yml-volume
configMap:
name: application-yml
## OK!
・ ・ ・
command: ['java', '-jar', '-Dserver.port=####', '-Dlog4j.configurationFile=log4j2.xml', '-Dspring.config.location="file:/deployments/config/application.yml"', 'test.jar']
・ ・ ・
volumeMounts:
- name: application-yml-volume
mountPath: "/deployments/config"
readOnly: true
・ ・ ・
- name: application-yml-volume
configMap:
name: application-yml
Ref. --Je me suis référé aux paramètres ici. https://dzone.com/articles/configuring-spring-boot-on-kubernetes-with-configm --Spring Boot sur Kubernetes: étude de cas Yahoo! Zubatoku #jjug_ccc https://www.slideshare.net/techblogyahoo/spring-boot-on-kubernetes-yahoo-jjugccc
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