IllegalState Previous attempts to find a Docker environme when trying to build a simple docker image

Hi,
I'm new in using Testcontainers. I tried to use testcontainers 1.16.2 in order to test database integration segments of my app.
The test are working fine when I try the following command:
mvn clean install

but when I'm creating a docker image using the following dockerFile, I'll get IllegalState Previous attempts to find a Docker environme. error.

`
FROM maven:3.8-jdk-11-slim as builder
MAINTAINER Hossein Shemshadi

ENV DOCKER_HOST=tcp://host.docker.internal:2375

COPY src /app/src/
COPY pom.xml /app/

RUN mvn -f /app/pom.xml clean package

FROM openjdk:11.0.6-jre-slim-buster

COPY --from=builder /app/target/agent-matcher-0.0.1-SNAPSHOT.jar /app/agent-matcher-0.0.1-SNAPSHOT.jar
EXPOSE 8090
ENTRYPOINT ["java", "-jar", "/app/agent-matcher-0.0.1-SNAPSHOT.jar"]
`

the error stacktrace is provided below:
[INFO ] 2021-11-09 15:54:04.798/UTC [cluster-ClusterId{value='618a999cca27a43b9470170a', description='null'}-localhost:27017] cluster - Exception in monitor thread while connecting to server localhost:27017 com.mongodb.MongoSocketOpenException: Exception opening socket at com.mongodb.internal.connection.SocketStream.open(SocketStream.java:70) ~[mongodb-driver-core-4.2.3.jar:?] at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:143) ~[mongodb-driver-core-4.2.3.jar:?] at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.lookupServerDescription(DefaultServerMonitor.java:188) [mongodb-driver-core-4.2.3.jar:?] at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:144) [mongodb-driver-core-4.2.3.jar:?] at java.lang.Thread.run(Thread.java:829) [?:?] Caused by: java.net.ConnectException: Connection refused (Connection refused) at java.net.PlainSocketImpl.socketConnect(Native Method) ~[?:?] at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399) ~[?:?] at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242) ~[?:?] at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224) ~[?:?] at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[?:?] at java.net.Socket.connect(Socket.java:609) ~[?:?] at com.mongodb.internal.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:107) ~[mongodb-driver-core-4.2.3.jar:?] at com.mongodb.internal.connection.SocketStream.initializeSocket(SocketStream.java:79) ~[mongodb-driver-core-4.2.3.jar:?] at com.mongodb.internal.connection.SocketStream.open(SocketStream.java:65) ~[mongodb-driver-core-4.2.3.jar:?] ... 4 more

Start with the Dockerfile, especially the Maven builder stage and its DOCKER_HOST setting, then inspect pom.xml and the integration tests under src. Reproduce both mvn clean install and the Docker image build, and determine why the Docker build cannot find or connect to the required Docker environment; done means the image build completes with the tests passing.