feat: add Dockerfile

Dockerfile

@@ -0,0 +1,14 @@
+# ============================================================
+# Dockerfile — violin-auth（for drone in kubernetes）
+# ============================================================
+FROM ccr.ccs.tencentyun.com/kona_jdk/kona-jdk:17
+
+# set timezone
+ENV TZ=Asia/Shanghai LANG=C.UTF-8
+
+WORKDIR /app
+COPY target/violin-auth-*.jar /app/app.jar
+
+USER 1000
+
+ENTRYPOINT ["sh", "-c", "exec java $JAVA_OPTS -jar /app/app.jar"]