调整docker配置

jeecgboot-vue3/Dockerfile

@@ -2,6 +2,12 @@ FROM nginx
 MAINTAINER 229230041@qq.com
 VOLUME /tmp
 ENV LANG en_US.UTF-8
+RUN curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \
+&& echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list  \
+&& apt update \
+&& apt install yarn \
+    && yarn install \
+    && yarn build
 RUN echo "server {  \
                       listen       80; \
                       location   /shop-api/ { \