Files
sayit.helpdesk/Dockerfile

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Docker

# 1단계: 에이전트 다운로드
FROM alpine:3.20 AS otel
ARG OTEL_VERSION=2.21.0
RUN apk add --no-cache curl && \
curl -fL \
https://github.com/open-telemetry/opentelemetry-java-instrumentation/releases/download/v${OTEL_VERSION}/opentelemetry-javaagent.jar \
-o /opentelemetry-javaagent.jar
# 2단계: Tomcat 이미지
FROM tomcat:9.0-jdk17-temurin
# non-root 계정 생성 (UID/GID 1000:1000)
RUN groupadd -g 1000 job && \
useradd -u 1000 -g 1000 -m job
# Tomcat 디렉토리 권한을 1000:1000 으로 변경
RUN chown -R 1000:1000 /usr/local/tomcat
ENV TZ=Asia/Seoul \
OTEL_SERVICE_NAME=sayis_service \
OTEL_EXPORTER_OTLP_ENDPOINT=http://192.168.100.203:4317 \
OTEL_EXPORTER_OTLP_PROTOCOL=grpc \
OTEL_RESOURCE_ATTRIBUTES="deployment.environment=prod" \
JAVA_TOOL_OPTIONS="-javaagent:/opt/opentelemetry-javaagent.jar"
# 타임존 적용
RUN ln -sf /usr/share/zoneinfo/Asia/Seoul /etc/localtime
# 에이전트 복사
COPY --from=otel /opentelemetry-javaagent.jar /opt/opentelemetry-javaagent.jar
# 기존 앱 제거
RUN rm -rf /usr/local/tomcat/webapps/*
# Maven 빌드된 WAR 복사 (target/sayis.war 기준)
COPY target/sayis.war /usr/local/tomcat/webapps/ROOT.war
# 이후부터는 1000:1000 계정으로 동작
USER 1000:1000
EXPOSE 8080
CMD ["catalina.sh","run"]