I have a Jenkins build which basically does the following:
1) svn update
2) mvn clean install
3) run some custom deploy script
How do configure this job to skip step 2) if there are no changed files in SVN?
I don't need to rebuild the WAR if nothing changed.
I thought that this is what the "incremental build" checkbox is for, but that didn't work.
Thank you!
Addd Polling on SVN. WHich will trigger build only if there is a change
In your build configuration, under "Build Triggers" add a Poll Scm. If you want Jenkins to check for changes every minute type * * * * * in the schedule box. Otherwise, use the blue question mark next to the schedule box to help you with cron syntax.
Related
I'm using TeamCity 9.1.7
We have 3 git repos, and they all need to create build.
But, I need to run extra tests if certain of these 3 repos has changes.
I'm using command line in build steps like:
if [%env.VAR% == 'foo']
then
action 1
action 2
fi
Is there any variable which can tell me that only certain of my repos was changed? Or is there any other ways to detect that?
You should set up one more build configuration with spearate triggering rules. Use "copy" build configuration action on project settings page.
I am trying to create a deploy job in Jenkins for my Spring Boot - Maven project. These are the steps i have followed until now:
Click New Item
Give a name, and choose Maven project
Configuration page opens
In Source Code Management, i have given my Git repository URL
In Build section under Goals and options i have written "spring-boot:run"
Saved and applied
Now when i click "Build Now", it checks out the project, builds and deploys. But the job does not end. This is the last line in the console output screen:
: Started Application in 4.737 seconds (JVM running for 16.297)
What is my problem? I need a simple step by step guidance since i do not have any Jenkins experience.
EDIT: I do not know what post build action is which is mentioned in the other post. I need a simple step by step guidance since i do not have any Jenkins experience.
The job doesn't end because your application is up and running on embeeded Tomcat. It's normal behaviour and you should be able to use your application at this point.
If you want to make another build, you should stop current build before starting a new one. To do this automaticaly (e.g. when your master branch is changed) you can create another one job.
Example of a job that triggers build of a main job:
Create a 'Freestyle project' in Jenkins;
Fill 'Source Code Management': your Repository URL and Credentials, Branches to build - */master;
Fill 'Build Triggers': select 'Poll SCM' and type H/2 * * * * in 'Shedule' to poll repository every 2 minutes;
Fill 'Build': add build step 'Execute shell' and type next commands to stop current build and start a new one (don't forget to replace JENKINS_URL and JOB_NAME with your values) -
curl -X POST http://JENKINS_URL/job/JOB_NAME/lastBuild/stop;
curl -X POST http://JENKINS_URL/job/JOB_NAME/build;
Save your job :)
I think that if you are going to deploy the spring-boot application in another server different to jenkins server you need to build your app mvn clean package and to move the jar created from jenkins server to the new server then you can use another step to start the app using java -jar myapp.jar. But, if you are going to deploy in tomcat server then you can use tomcat-api to deploy remotely.
For now I have a batch file with commands for update projects using svn and calling maven 'clean install'. How to create some job in Jenkins for similar actions?
Should I write it to ant file (sorry if it's stupid idea, I've just heard about it but I don't know what is it exactly and what can I do with this) or there is other way?
Thanks
Like arghtype suggested, you need to be using Jenkin's own Source Code Management by configuring SVN as SCM source and supplying credentials as part of Maven build job.
If you have to use your own local working copy, you are organizing it wrong, you will lose on all the benefits of having Jenkins manage SVN changes, and in the end, this organization will give you more unsolvable problems in the future. Think about the advice people are giving here and come with up a reason why you need to have a local workspace outside of Jenkins management on a Jenkins build machine. My only guess is: your Jenkins and Development machine are the same. That again is not how it should be organized. Jenkins is a CI-server, not a personal build "automator".
Regardless, if you still want to do what you say.
What you think you want
Create a new Freestyle job
Under Build Steps, click Add build step
Select Execute Windows batch command
Write your batch execute command in there. Your working directory will be Jenkins's $WORKSPACE, so change your path accordingly to where you want to run it.
But with the above configuration, you might have as well put the batch file under windows scheduler... You are not really using Jenkins with the above.
What you should do instead
Create a new maven2/3 build job
Under Source Code Management, select Subversion
Under Repository URL enter the remote SVN repo (i.e. http://your.svnsever.com/path/to/project)
Under Build, enter your Root POM location (this will be relative to the location of your SVN checkout, so if your POM is under http://your.svnserver.com/path/to/project/maven/pom.xml, then enter maven/pom.xml.
Under Goals and options, enter clean install
Click Save
The Source Code Management section will take care of setting up a local workspace and checkout the repository into that workspace. By default, every time a new build is triggered, it will run svn update on that workspace for you.
The Maven Build step will take care of running your Maven, however note that it is configured to use default ~/.m2/repository location. If your local maven repo needs to be different, change this under Jenkins Global Configuration
Create a new job.
In Source Management choose Subversion, specify your repo and credentials.
Add a new build step - maven build, specify your maven goals ('clean install').
Jenkins is a CI(contiounus integration) server. It can be used to generate scheduled builds of ant or maven based projects. It can also start building projects by some triggering event such as a commit to SCM (git, svn, mercurial,...)connected to it. You really have to read its documentation to get a better understanding. It has nice tutorials.
How can I make Jenkins do the following?
Checkout trunk/ from SVN, then build configurations Debug and Release using CMake, without having duplicate jobs for the configurations.
Took me a while to figure this out. Here's how I managed to do it.
Create a free-style job "Checkout". This job is going to do all the stuff that doesn't depend on the configuration type (Debug/Release).
Under "Source Code Management" select Subversion
Fill in the Repository URL. Probably a good idea to make it point to /trunk.
Set Local module dir to "." (no quotes)
As Check-out Strategy "Emulate clean" is nice
Build trigger Poll SCM, set Schedule to "5 * * * *" to check every 5 minutes.
Now under Advanced Project Options check 'Use custom workspace' and set the dir to e.g. "c:/src". We don't want Jenkins to use its internal workspace, because we want other jobs to be able to access the source.
Under Build add the following Windows batch command, which is used to clean the build dir. For some reason, CMake doesn't provide a way to do this.
cd c:\
rmdir /S /Q build
mkdir build
cd build
cmake --version
rem optionally: svn info c:\src
cmake -G "Visual Studio 10" c:\src
Create another job "Build", this time make it a "multi-configuration" job. This job is going to run for each configuration (Debug/Release).
First, set the Build Triggers to build after job "Checkout"
Now under Configuration Matrix add an axis "configuration" with values "Debug Release" (whitespace = separator). Unfortunately, the CMake builder plugin for Jenkins doesn't work with multi-configuration jobs. We can't even use cmake --build, because it always builds the Debug configuration. To build, we have to use another batch script:
cd c:\build
call "%ProgramFiles(x86)%\Microsoft Visual Studio 10.0\VC\vcvarsall.bat"
msbuild ALL_BUILD.vcxproj /verbosity:minimal /maxcpucount:1 /property:Configuration=%configuration%
If you want to build the entire solution, specify the .sln file instead of ALL_BUILD.vcxproj. If you only want to build a specific project, use
msbuild <solution>.sln /target:<project>
Use Jenkins Matrix job. Define one of the axes as build_mode with values Debug and Release. You then run CMake that will create both configurations for the compilation tool you'll be using (XCode, gcc, VisualStudio, etc.). You can then use build_mode as if it were an environment variable and pass it to build steps that do actual compilation.
When using the Visual Studio generator you can pass the configuration to build to the cmake --build-command:
cmake --build . --config Release
cmake --build . --config Debug
See also the CMake docs.
After using Jenkins for a while now, I found that you should use as few jobs as possible if you want to reuse the source directory.
The default setup in Jenkins is that each build uses a different directory as its workspace. Which implies that you do a complete SVN checkout every build. Which takes forever.
If you want to use the same source directory for every build, you have to worry about synchronization: Only one build at a time. As far as I know, Jenkins has no built-in means of synchronization. The only way is to only use one executor. Even then you can't control the way the executor chooses its next job.
Let's say job "SVN update" triggers job "Build". Someone starts "SVN update #33", which is supposed to trigger "Build #33". If, however, Jenkins' "Poll SCM" feature schedules "SVN update" #34 in the meantime, I haven't found a way to tell it that "Build #33" must run before "SVN update #34". So you might end up with "SVN update #34" running before "Build #33", and everything fails. Unless you manually disable the polling job. And remind yourself to re-enable it afterwards, of course.
Anyways. After using Jenkins for two years, I change my answer to: Never use multiple jobs that share resources (like the source dir), and bake all the logic into shell scripts (for loop over configurations).
I'm setting up Jenkins for the first time and running into an issue where Jenkins does not appear to even attempt to execute the Ant task I've specified.
I've defined my JDK and Ant installations under Manage Jenkins.
I've setup my Job to Invoke Ant using the Targets 'war-all'
Whether I force a build or wait for it to naturally execute after the next commit, there is nothing in the Build Console Output about attempting to execute the ant task.
Here is a sample Console Output:
Any ideas as to why it might not be executing would be appreciated. Also tips on how I can find more logging from Jenkins which might provide clues as to why it is not executing would be helpful. I'm not sure what Logger I might specify or even then where the logging information is written on the file system.
The problem was that I was selecting "Build multi-configuration project" as the type of my job. When I select "Build a free-style software project" as my job type the Ant task will execute after the SVN update.
Looks like your svn doesn't see any changes and therefor is not re-building the module.
Try deleting the workspace and re-trigger the build, or change the check-out strategy to 'Always check out a fresh copy'.
I faced the same problem when upgraded to 1.417 from 1.413.
The combobox "Ant version" disappeared from "Invoke ant" build step. It should be here.
I just downgraded to 1.413 and continue to work.
So, the answer is - you should specify "Ant version" in project settings. But you cannot do it in 1.417.
It seems like Jenkins doesn't like when you create a job before configuring JDK. If that happens, job will never work properly. So, for me the solution was:
Delete job.
Configure JDK
Re-create job.
Probably the same problem may arise when job's JDK is deleted.
In my case,ant default target was not being picked up from build.xml so I had to explicitly mention the target in jenkins option.
I resolved this by changing the jdk to default and then again switched to what was set earlier.This is a workaround but not sure how this resolved.