fix for api test files being owned by root on linux

apitester4/Dockerfile

@@ -1,11 +1,18 @@
 
 FROM maven:3.8-jdk-11
 
+ARG USERNAME=apitester
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+
+RUN groupadd --gid $USER_GID $USERNAME \
+    && useradd --create-home --no-log-init --uid $USER_UID --gid $USER_GID -m $USERNAME
+
 ADD . /opt/apitester
-RUN cd /opt/apitester && mvn clean package
+RUN chown -R apitester:apitester /opt/apitester
 
+RUN cd /opt/apitester && mvn clean package
 RUN find opt/apitester
 
 
 
-

docker-compose.yml

@@ -64,7 +64,7 @@ services:
       volumes:
         - ${OLS4_APITEST_OUTDIR:-./to_be_filled_by_script_outdir}:/mnt/out:rw
         - ${OLS4_APITEST_COMPAREDIR:-./to_be_filled_by_script_comparedir}:/mnt/compare:rw
-      command: ["bash", "-c", "java -jar /opt/apitester/target/apitester-1.0-SNAPSHOT-jar-with-dependencies.jar --url http://ols4-backend:8080 --outDir /mnt/out --compareDir /mnt/compare > /mnt/out/apitester4.log"]
+      command: ["bash", "-c", "chown -R apitester:apitester /mnt && su -c \"java -jar /opt/apitester/target/apitester-1.0-SNAPSHOT-jar-with-dependencies.jar --url http://ols4-backend:8080 --outDir /mnt/out --compareDir /mnt/compare > /mnt/out/apitester4.log\" apitester"]
       depends_on:
         - ols4-backend
       links: