Added test environment

Dockerfile-test

@@ -0,0 +1,16 @@
+FROM node:20.13.1-alpine3.19 as build
+WORKDIR /app/src
+COPY package*.json ./
+RUN apk update
+RUN apk add yarn
+RUN yarn install --frozen-lockfile --no-progress
+COPY . ./
+RUN yarn build --configuration test
+
+FROM node:20.13.1-alpine3.19
+RUN addgroup -S k8s-group && adduser -S k8s-user -G k8s-group
+USER root
+WORKDIR /usr/app
+COPY --from=build /app/src/dist/swiss-client/ ./
+CMD node server/server.mjs
+EXPOSE 4000