Previously we had a single monolith in GitLab repository and we used to build project in Jenkins using Jenkinsfile.
Now we are migrating it into multiple microservices and all reside in same GitLab repository. Is it possible to create pipelines for this type of setup or do we need to have each microservice in separate repository. If it is possible please point me to appropriate resources.
Each microservice can have its own Jenkinsfile, you have to tell to the Jenkins job the path of the Jenkinsfile if it is not located at the root path.
In your pipeline configuration job choose "Pipeline script from SCM" and set the "Script Path".
To only checkout the microservice you need, you can use in the "SCM" then "Additional Behaviours" the "Check out to a sub-directory" (then if the Jenkinsfile is now at the pseudo root path, you won't need to change the default "Script Path").
Yes it is possible to create pipelines to build/test/deploy from a single repository.
Use Declarative Pipeline in Jenkins.
You can have your microservices separated in different directories in a single repo and can build them all using a single pipeline using the stages & dir() option in Jenkinsfile. We're building close to 15 components from a single pipeline and push it to it's relevant artifactory from the same job. You can build non-dependent microservice components parallely too.
Documentation --> Jenkins Pipeline,Jenkinsfile
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I have multiple repositories which require a cd pipeline and all the repositories have their own jenkinsfile with same name. I have configured one jenkins pipeline for all the repositories by adding multiple repositories in "pipeline script from SCM" section.
When any of the repository is updated the pipeline triggers but it uses jenkinsfile of the first repository mentioned in the list of repos.
Is their anyway we can change this behaviour and make the Jenkins job run Jenkinsfile from a repository which triggered the build.
This can be done by shared library https://www.jenkins.io/doc/book/pipeline/shared-libraries/
https://www.tutorialworks.com/jenkins-shared-library/
You can define various logic and functions to manage multiple repositories and their variables.
Also, try to make generic script which can behave based on the supplied parameters.
I've only been working with Jenkins so far. We have configured a Multibranch Pipeline job to automatically build and test software. The tasks are written in Groovy and stored as Jenkinsfile in the root directory of our git repository.
Recently, we have decided to add another mechanism to automatically generate documentation. The generation of documentation (but this could be any other task) has been realized using GitLab CI.
Both pipelines are practically independent - and both are triggered by a git commit/push. What I do not understand is: why and how is the Jenkins pipeline execution associated with the GitLab CI pipeline? In the following screenshot a new column "External" appears - representing the Jenkins pipeline job.
That's not really a big issue. But as both pipelines should be independent - the results of the runs should not influence each other. However, it seems that when the Jenkins job fails, i.e. "External", the GitLab CI pipeline also fails:
Is there a way to better decouple those pipelines, i.e. let them fail or succeed individually?
This is because the Gitlab Branch Source Plugin automatically notify Gitlab about then Jenkins pipeline status. This allow you to see the result of a build directly in Gitlab. If you want to have only the result of the Gitlab CI pipeline in Gitlab, you can disable this feature :
Additional Traits:
These traits can be selected by selecting Add in
the Behaviours section.
[...]
Skip pipeline status notifications - Disable notifying GitLab server
about the pipeline status.
[...]
So in yout Gitlab group, just go the Configure > Projects > Gitlab Group > Add and select Skip pipeline status notifications.
why and how is the Jenkins pipeline execution associated with the GitLab CI pipeline? In the following screenshot a new column "External" appears - representing the Jenkins pipeline job.
In general, "External" statuses are created using the commit build status API -- Jenkins uses this API to report the Jenkins pipeline build status to GitLab CI.
This external status for Jenkins appears in your GitLab pipeline because you have configured your Jenkins server/project to report build statuses to GitLab or you have setup a webhook integration with Jenkins in GitLab (note these may be set at the group level or by an administrator, not necessarily the project level)
To remove this from your pipeline, you should disable any existing integration configurations and setup your Jenkins project independently of any GitLab integration. e.g. using git polling to trigger jenkins builds and remove any updateGitlabCommitStatus calls in your groovy scripts / build stages.
I am working on micro-service base Jenkins pipeline. There is similar code pattern / structure in Bitbucket repository for Java and angular based code. Can I manage multiple repositories with single pipeline with dynamic approach which can provide filter option (like AJAX in java) in drop down like I can get more than one repositories in drop down option and I can select any repository, based on this repository, I can get branches from this repository in next drop down and I can execute Jenkins pipeline.
Do we have any Jenkins plugin which can provides filter option for Bitbucket repositories in Jenkins.
Presently I am using Git parameter option in Jenkins pipeline (Build with parameter) and then created several pipelines.
Are you saying that you want a job in which you can select a repository and then select a branch from that repository and hit GO and build that branch of that repo? If this is the case then the answer is no.
You would have one Job per repository, and if that job is a multibranch pipeline then you would be able to select the branch to build from there.
You can enable all the repos and branches to use the "same" pipeline that you then submit parameters to using a Shared Library
I have a multibranch pipeline job where I specify a custom location of Jenkinsfile. Is there a way to retrieve the path of this Jenkinsfile from the pipeline?
Here's what I want to achieve: I have a single git repository that consists of multiple projects (monorepo). Each project has its own Jenkins multibranch pipeline build, they only differ in the name and path to Jenkinsfile. These projects build Docker images and I would like to standardize the Docker image naming by following the project path, which is the directory of Jenkinsfile. At the moment I add the name manually in the Jenkinsfile but I think it would be better if I can just retrieve this information from Jenkins.
I am having Jenkins in one server and my build server is different. How to point build server in Jenkins pipeline so that my application will build in build server
Using grade and java.
Do we need to use node('Build 1') inside stage?
Suggest me some sample code please.
In Jenkins, your build server called slave machine or Jenkins nodes, which you need
Firstly add this "buildserver" into Jenkins nodes in advance, then you will get node name (or label them like ubuntu-buildserver), see one jenkins distributed build blog
Secondly in scripted pipeline you specify/reference this name in node
node("ubuntu-buildserver")
If you use declarative pipeline, check syntax#agent part.
It is similar for other global configuration like credentialsId, you need define those parameters in jenkins and refer to use them in your pipeline script.