Docker --build-arg property for extension container-image-docker

[haraldatbmw]

Describe the bug
Using the extension container-image-docker there is no way to pass dockers --build-arg.
My docker build (Dockerfile.jvm) fails because I'm behind a proxy and during build internet connectivity is needed (RUN microdnf install ...).

I need run the docker build like docker build --build-arg http_proxy=http://localhost:3128 --build-arg https_proxy=http://localhost:3128 ...

Expected behavior
The extension has a property inside application.properties to be able to configure dockers build-arg.

Actual behavior
No configuration option

To Reproduce
Steps to reproduce the behavior:

1. Add extension container-image-docker to pom.xml
2. Be sure to be behind a proxy
3. Let the extension do your docker build.

Environment (please complete the following information):

• Output of uname -a or ver: Microsoft Windows [Version 10.0.17134.1488]
• Output of java -version:
  openjdk version "11.0.6" 2020-01-14 LTS
  OpenJDK Runtime Environment Zulu11.37+17-CA (build 11.0.6+10-LTS)
  OpenJDK 64-Bit Server VM Zulu11.37+17-CA (build 11.0.6+10-LTS, mixed mode)
• GraalVM version (if different from Java):
• Quarkus version or git rev: 1.5.0.CR1
• Build tool (ie. output of mvnw --version or gradlew --version): Apache Maven 3.6.3 (cecedd343002696d0abb50b32b541b8a6ba2883f)

[haraldatbmw]

cc @geoand

[geoand]

#9678 introduces that ability.

By just adding:

quarkus.docker.build-args.http_proxy=http://localhost:3128
quarkus.docker.build-args.https_proxy=http://localhost:3128

the docker command would now be something like:

docker build -f /tmp/test/src/main/docker/Dockerfile.jvm --build-arg http_proxy=http://localhost:3128 --build-arg https_proxy=http://localhost:3128 -t group/test:1.0-SNAPSHOT /tmp/test