chore(test): optimization Dockerfile.test

Author: duanhongyi

rootfs/Dockerfile.test

@@ -3,13 +3,8 @@ FROM python:3.7-alpine
 COPY requirements.txt /app/requirements.txt
 COPY dev_requirements.txt /app/dev_requirements.txt
 
-RUN apk update \
-  && apk add postgresql==12.3-r2
-
 ENV PGDATA /var/lib/postgresql/12
-RUN mkdir -p /run/postgresql $PGDATA \
-  && chown -R postgres:postgres /run/postgresql $PGDATA \
-  && apk add --update --virtual .build-deps \
+RUN apk add --update --virtual .build-deps \
     postgresql-dev \
     gcc \
     libffi-dev \
@@ -31,7 +26,9 @@ RUN mkdir -p /run/postgresql $PGDATA \
     su-exec \
     bash \
     shadow \
-    postgresql \
+    postgresql==12.3-r2 \
+  && mkdir -p /run/postgresql $PGDATA \
+  && chown -R postgres:postgres /run/postgresql $PGDATA \
   && apk del .build-deps \
   && su-exec postgres initdb -D $PGDATA
 
@@ -40,3 +37,4 @@ COPY . /app
 WORKDIR /app
 CMD ["/app/bin/boot"]
 EXPOSE 8000
+