Why is the image not being built from the Dockerfile?

Question

Java

I got the jar via mvn install in target and after that created a simple dockerfile, this is what it looks like

FROM openjdk:11
VOLUME /tmp
COPY target/minikube-0.0.1-SNAPSHOT.jar app.jar
EXPOSE 8080
ENTRYPOINT ["java", "-jar", "app.jar"]

but when I try to run it from idea it gives me the following

Sending build context to Docker daemon...
[> ] 8.192kB
Failed to deploy ' Dockerfile: Dockerfile': Error while executing Request{method=POST, path=/v1.40/build?t=dennisKingsman%2Flucky-app&rm=true , body=com.intel[email protected]47f2f19b, bodyBytes=null, hijackedInput=null, headers={accept=application/json, Content-Type=application/tar, encoding=gzip}}

How to fix this error and what is causing it?
Before that, I deployed oracle DB in a container, but the connection to it fell off due to a timeout due to a proxy, so I had to create a daemon.json file in the docker folder and write the following in it

{
    "userland-proxy": false
}

maybe it has something to do with the error in which it crashes when

Sending build context to Docker daemon...

?

Answer 1

in the settings of the dockerfile, I specified the name of the tag with the uppercase, you can’t do this, so the assembly fell, after fixing everything worked out