diff --git a/Dockerfile b/Dockerfile
index 9bc9e48..8459d58 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -8,8 +8,8 @@ LABEL author="tier-packaging@internet2.edu <tier-packaging@internet2.edu>" \
 
 ARG GROUPER_CONTAINER_VERSION
 
-ENV GROUPER_VERSION=4.1.3 \
-    GROUPER_CONTAINER_VERSION=4.1.4 \
+ENV GROUPER_VERSION=4.1.5 \
+    GROUPER_CONTAINER_VERSION=4.1.5 \
     JAVA_HOME=/usr/lib/jvm/java-17-amazon-corretto \
     PATH=$PATH:$JAVA_HOME/bin \
     GROUPER_HOME=/opt/grouper/grouperWebapp/WEB-INF
diff --git a/Dockerfile_centos b/Dockerfile_centos
new file mode 100644
index 0000000..7bcd655
--- /dev/null
+++ b/Dockerfile_centos
@@ -0,0 +1,59 @@
+FROM i2incommon/grouper:4.1.5 as grouperContainer
+
+FROM centos:centos7
+
+COPY --from=grouperContainer /opt /opt
+COPY --from=grouperContainer /usr/local/bin /usr/local/bin
+
+
+LABEL author="tier-packaging@internet2.edu <tier-packaging@internet2.edu>" \
+      Vendor="TIER" \
+      ImageType="Grouper" \
+      ImageName=$imagename \
+      ImageOS=centos7
+
+ARG GROUPER_CONTAINER_VERSION
+
+ENV GROUPER_VERSION=4.1.5 \
+    GROUPER_CONTAINER_VERSION=4.1.5 \
+    JAVA_HOME=/usr/lib/jvm/java-17-amazon-corretto \
+    PATH=$PATH:$JAVA_HOME/bin \
+    GROUPER_HOME=/opt/grouper/grouperWebapp/WEB-INF
+
+#  net-tools curl mlocate strace telnet man vim rsyslog cron httpd mod_ssl cronie
+
+RUN rm -fr /var/cache/yum/* && yum clean all && yum -y install --setopt=tsflags=nodocs epel-release \ 
+    && yum update -y \
+    && yum install -y logrotate python3-pip rsync sudo patch supervisor wget tar unzip dos2unix file net-tools curl mlocate logrotate strace telnet man vim rsyslog cronie httpd mod_ssl findutils \
+    && pip3 install --upgrade setuptools \
+    && yum clean -y all \
+    && groupadd -r tomcat \
+    && useradd -r -m -s /sbin/nologin -g tomcat tomcat
+
+# Install Corretto Java JDK
+#Corretto download page: https://docs.aws.amazon.com/corretto/latest/corretto-8-ug/downloads-list.html
+
+# Install Corretto Java JDK (newer more arch independent way)
+RUN rpm --import https://yum.corretto.aws/corretto.key \
+    && curl -L -o /etc/yum.repos.d/corretto.repo https://yum.corretto.aws/corretto.repo \
+    && yum install -y java-17-amazon-corretto-devel
+
+RUN /opt/container_files/docker-build-bin/containerDockerfileInstallPermissions.sh tomcat root
+
+# testing container
+# docker build -f Dockerfile_centos -t mygrouper
+# see output with  
+# DOCKER_BUILDKIT=0 docker build --progress=plain -t mygrouper .
+# docker run --detach --name mygrouper mygrouper:latest
+# docker exec -it mygrouper bash
+# docker run --detach -e GROUPER_SELF_SIGNED_CERT=true -e GROUPER_MAX_MEMORY='3g' -e GROUPER_RUN_SHIB_SP=false -e GROUPERSYSTEM_QUICKSTART_PASS=pass -e GROUPER_UI_GROUPER_AUTH=true -e GROUPER_DATABASE_URL=jdbc:postgresql://host.docker.internal:5433/grouper -e GROUPER_DATABASE_USERNAME=grouper -e GROUPER_DATABASE_PASSWORD=pass -e GROUPER_AUTO_DDL_UPTOVERSION='v4.*.*' -e GROUPER_UI_CONFIGURATION_EDITOR_SOURCEIPADDRESSES='0.0.0.0/0' -e GROUPER_START_DELAY_SECONDS=10 --publish 8081:8080  -e GROUPER_RUN_APACHE=false --name mygrouper mygrouper:latest ui
+
+
+
+WORKDIR /opt/grouper/grouperWebapp/WEB-INF/
+EXPOSE 80 443
+HEALTHCHECK NONE
+
+ENTRYPOINT ["/usr/local/bin/entrypoint.sh"]
+#ENTRYPOINT ["ping"]
+#CMD ["google.com"]