diff --git a/test/Dockerfile-centos8 b/test/Dockerfile-centos8
new file mode 100644
index 0000000..15c14d6
--- /dev/null
+++ b/test/Dockerfile-centos8
@@ -0,0 +1,20 @@
+FROM centos:centos8
+
+# Note this image uses drill, does not have dig or nslookup installed
+
+# Update and install required software
+RUN yum -y update
+RUN yum -y install epel-release
+RUN yum -y install git curl bind-utils wget which nginx
+
+WORKDIR /root
+RUN mkdir /etc/nginx/pki
+RUN mkdir /etc/nginx/pki/private
+COPY ./test/test-config/nginx-ubuntu-no-ssl /etc/nginx/conf.d/default.conf
+COPY ./test/test-config/nginx-centos7.conf /etc/nginx/nginx.conf
+
+# BATS (Bash Automated Testings)
+RUN git clone https://github.com/bats-core/bats-core.git /bats-core
+RUN git clone https://github.com/bats-core/bats-support /bats-support
+RUN git clone https://github.com/bats-core/bats-assert /bats-assert
+RUN /bats-core/install.sh /usr/local
diff --git a/test/restart-nginx b/test/restart-nginx
index e62433d..4dc8af0 100755
--- a/test/restart-nginx
+++ b/test/restart-nginx
@@ -3,7 +3,7 @@
 if [ "$GETSSL_OS" = "alpine" ]; then
     killall -HUP nginx >&3-
     sleep 5
-elif [ "$GETSSL_OS" == "centos7" ]; then
+elif [[ "$GETSSL_OS" == "centos"[78] ]]; then
     pgrep nginx | head -1 | xargs kill -HUP
     sleep 5
 else
diff --git a/test/test_helper.bash b/test/test_helper.bash
index fafad5c..9358619 100644
--- a/test/test_helper.bash
+++ b/test/test_helper.bash
@@ -72,7 +72,7 @@ if [[ -f /usr/bin/supervisord && -f /etc/supervisord.conf ]]; then
     if [[ ! $(pgrep supervisord) ]]; then
         /usr/bin/supervisord -c /etc/supervisord.conf >&3-
     fi
-elif [ "$GETSSL_OS" == "centos7" ]; then
+elif [[ "$GETSSL_OS" == "centos"[78] ]]; then
     if [ -z "$(pgrep nginx)" ]; then
         nginx >&3-
     fi