Add dockerfile for testing

testing.Dockerfile

@@ -0,0 +1,33 @@
+# syntax = docker/dockerfile:1.3-labs
+FROM registry.access.redhat.com/ubi8/ubi
+
+RUN <<EOF cat >> /etc/yum.repos.d/mongo.repo
+[mongodb-org]
+name=MongoDB Repository
+baseurl=https://repo.mongodb.org/yum/redhat/8/mongodb-org/4.4/x86_64/
+gpgcheck=1
+enabled=1
+gpgkey=https://www.mongodb.org/static/pgp/server-4.4.asc
+EOF
+
+RUN set -eux \
+    && dnf makecache \
+	&& dnf install -yq mongodb-org-server golang \
+    && dnf clean all
+
+WORKDIR /root/mongox
+
+ENV GOPATH=/root/go
+
+COPY go.mod .
+COPY go.sum .
+
+RUN set -eux \
+    && go mod download
+
+COPY mongox-testing mongox-testing
+COPY mongox mongox
+
+CMD set -eux \
+    && nohup mongod --dbpath $(mktemp -d) \
+    & go test -timeout 30s -v ./...