Generate settings.xml if MAVEN_MIRROR_URL is set

[tolusha]

Signed-off-by: Anatoliy Bazko abazko@redhat.com

What does this PR do?

Generates /home/theia/.m2/settings.xml if MAVEN_MIRROR_URL is set.

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0
                      https://maven.apache.org/xsd/settings-1.0.0.xsd">
  <mirrors>
    <mirror>
      <url>${env.MAVEN_MIRROR_URL}</url>
      <mirrorOf>external:*</mirrorOf>
    </mirror>
  </mirrors>
</settings>

What issues does this PR fix or reference?

eclipse-che/che#14391

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-theia" docker image: maxura/che-theia:429

[tolusha]

@benoitf
Could you validate the PR ?

[benoitf]

@tolusha why do we have M2 settings in theia endpoint ? it's not related to any programming language

[benoitf]

Probably you're requiring like /entrypoint.sh including optional like /before-start.sh and include that file in the java endpoint containers ?

[tolusha]

@benoitf
I've updated the PR

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-theia" docker image: maxura/che-theia:429

[che-bot]

E2E Happy path tests of Eclipse Che Single User on K8S (minikube v1.1.1) has been successful:

• build details
• "che-theia" docker image: maxura/che-theia:429