Hi, glad you are asking how to make sure that a caching server is used:
https://github.com/apache/bigtop/blob/8c323c4f12534508b6ffb45603db7cbf6e0a145f/build.gradle#L477 <https://github.com/apache/bigtop/blob/8c323c4f12534508b6ffb45603db7cbf6e0a145f/build.gradle#L477> The gradle task "configure-nexus“ is configuring $HOME/.m2/settings.xml file for maven to download for instance maven central via nexus instead of downloading from maven central directly. However this will only work for maven, not handling gradle or ivy builds AFAIK. Best Olaf > Am 19.02.2022 um 14:23 schrieb Luca Toscano <[email protected]>: > > Hi everybody, > > I have one doubt related to Nexus, namely when it is used. I tried to > check [1] as random example, and I see that we trigger at some point > the configure-nexus gradle code, but when the debuild script kicks in, > I see stuff like: > > + mvn clean install -DskipTests -Dhadoop.version=3.2.2 > -Dmaven.buildNumber.revisionOnScmFailure=v2.4.1 -Phadoop-3 -Pyarn > -Dmaven.repo.local=/var/lib/jenkins/.m2/repository > > Is the mvn command launched inside debuild using the nexus cache? > > Luca > > ---- > [1] > https://ci.bigtop.apache.org/view/Packages/job/Bigtop-trunk-packages/COMPONENTS=alluxio,OS=debian-11/lastBuild/consoleFull > > On Thu, Feb 17, 2022 at 9:48 PM Olaf Flebbe <[email protected]> wrote: >> >> Hi everyone, >> >> Yesterday Luca Toscano and me had a call to look into improving the >> situation of artifact downloads by caching . >> >> I was a bit surprised that the „nexus“ code is still in place and still seem >> to work somehow. >> >> Since having a repository server (a specialized proxy for maven repos) is >> technically a much cleaner solution than messing with the .m2/repository >> maven cache -- since it can be shared across architectures and os and even >> support more built tools -- I would like to step back from my proposal to >> use docker volumes to share the raw m2 cache between instances. >> >> What need to be done is to either update to a current version of nexus or >> switch to a different maven proxy which can be setup , updated and >> configured more easily. >> >> I asked a search machine for alternatives and tripped over this project >> https://github.com/jenkins-x/bucketrepo >> which promises to be a low-footprint minimal replacement for nexus, which >> could even use S3 as a backing store. >> >> There was a configuration example for nginx as well : >> https://github.com/lkiesow/weblog.lkiesow.de/blob/master/20170413-nginx-as-fast-maven-repository-proxy.md >> >> Best >> Olaf
