Add dockerfile for testing

README.md

@@ -1 +1,21 @@
-mongox-go-driver
+# mongox-go-driver
+
+## testing locally
+
+reqs:
+- mongodb v4.0 or newer run on localhost
+- golang v1.13 or newer
+
+test it by calling go tests
+```sh
+$ go test ./...
+```
+
+## testing by using dockerfile
+
+reqs:
+- docker with buildkit
+
+```sh
+$ DOCKER_BUILDKIT=1 docker build -t mongox-testing -f testing.Dockerfile .
+```

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 ./...