add dockerfile for running tests

Author: bdattoma

images/tests/Dockerfile

@@ -0,0 +1,21 @@
+# Use the official Go image as a base image
+FROM golang:1.21
+
+# Set the working directory inside the container
+WORKDIR /distributed-workloads
+
+# Copy the go mod and sum files
+COPY go.mod go.sum ./
+
+# Download all dependencies
+RUN go mod download && \
+    go install gotest.tools/gotestsum@latest
+    # go install github.com/jstemmer/go-junit-report/v2@latest
+
+WORKDIR /distributed-workloads/tests
+
+# Copy the source from the current directory to the working directory inside the container
+COPY tests/ .
+
+# Command to run the tests
+ENTRYPOINT [ "gotestsum"]