Environment variable retrieve from NAnt script is not recognize in Jenkins nant build step - jenkins

In my nant script I retrieve my environment variable in this way:
property name="ProjectSolutionPath" value="${environment::get-variable('MAIN_PROJECT_PATH')}"
but when I run it through jenkins using nant as build step I got an error like this.
Expression: ${environment::get-variable('MAIN_PROJECT_PATH')}
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Environment variable "MAIN_PROJECT_PATH" does not exist.
Is there configuration for this? so that Jenkins will recognize environment variables access by my nant script?
Help is greatly appreciated.

Make sure you define this environment variable in "System variables".
Since the Jenkins process usually runs as "NT AUTHORITY\SYSTEM" user, the environment variables associated with your user account do not get appended to the env-vars of the process.
I've seen this answer on how to add env-vars to a Jenkins build (though I don't like spawning a cmd line process), if you do not want to use sys-env-vars.

Related

How to set environment variables used by docker container using Bamboo

I am using Bamboo for building and deploying my docker container. My code uses environment variables. I am using a shell script to set values of those variables with those values being hardcoded in .sh file. Ideally, I would like the values for those environment variables to be passed through bamboo variables. One option is to generate a shell script during bamboo build plan and call that shell script from startup file. Is there any better option to set system environment variables using bamboo variables?
When adding the Docker task in the Plan configuration, you have the option to pass environment variables.
For example, if your Dockerfile has ENV variable test_db_pass you should pass in the Docker task field "Container environment variables" the following: test_db_pass=${bamboo.test_db_pass}
It is possible to define either plan or global variables in Bamboo.
You can then use them in you build.
It's in the documentation :
https://confluence.atlassian.com/bamboo/defining-plan-variables-289276859.html

Jenkins - How to read the environment variables in groovy post build step

I am trying to read the environment variables in Groovy Postbuild step. I am able to read the values of parameters passed to builds but unable to read the values of parameters which are set in one of my Execute Windows batch command.
In one example of my Execute Windows batch command I do this:
SET custom_param=myValue
if I use ${custom_param} in other jenkins steps/jobs, it gets my value. So I am sure it has the value. I just can't get it in groovy script
I have tried followings to do so, none of them have worked:
manager.envVars['custom_param']
build.buildVariableResolver.resolve('custom_param')
build.getEnvironment(listener).get('custom_param')
Any help here would be great
(Assuming you're not running your script in groovy sandbox)
Try the bellow:
build = Thread.currentThread().executable
String jobName = build.project.getName()
job = Hudson.instance.getJob(jobName)
my_env_var = job.getLastBuild().getEnvironment()["YOUR_ENV_VAR"]
Groovy Post build step run as separate process. It has access to environment as normal JVM process.
You could use EnvInject plugin as a a build step. Subsequent steps in build will able to read this via normal environment access (System.env in your groovy script)
When you set some custom variables in your "Windows command batch" step, these variables are available only during this Jenkins step.
Once Jenkins move on the next step, your variables are lost...
If you want to set some variables permanently, you can try to use the SETX command:
What is the difference between setx and set in environment variables in Windows?

setting Environment from a file in Jenkins

My question is there any way to set up environment variables from a file during Jenkins build. I have a file called .xyz which has env variables.
I know there is a jenkins plugin but can we do it inside the execute shell box in jenkins??
I tried . .xyz but that doesn't work!
Thanks in advance
If you want to do it from inside Execute Shell step, you've got to write a shell script that will read the file line by line and add them to environment variables.
Assuming your properties file is of format:
var=value
A very basic version of the script would be:
while read line; do
export $line
done <your_props_file_name
The problem is, these variables will only be retained for the duration of that "Execute Shell" build step. Once you move to a different Build step or Post-build step (within the same job), they will be gone. This is Jenkins's cleanup by design.
That's why there is that EnvInject plugin, it takes care of maintaining the environment variables between the build steps.

Preserve environment variables in Jenkins between Windows build commands

I am trying to set up Jenkins to continually check out and build code and verify that the code is compilable.
Our build system works like this: we have several different .bat files that set up environment variables for different build configurations, and then we execute gmake to actually build the code.
When I created Jenkins job, in Build part of the job I set up two "Execute windows batch command" commands: one that calls the script to set up env. variables, and gmake to build it.
Problem is, when gmake step runs, all environment variables are forgotten. How can I prevent env. variables from being cleared?
Tx
What if you set it up to call only one bat file instead? That one file can then call the two you're currently calling with Jenkins.

How to get the jobname from jenkins

Is there a way to get the jobname for the current build in jenkins and pass it as a parameter to an ant build script?
Jenkins sets some environment variables such as JOB_NAME (see here) for more details on the variables set.
You can then access these in ant via ${env.JOB_NAME}.
Edit: There's also a little howto for environment variables on the same page here.
A similar issue, I was looking for job name for shell script.
In the 'Execute shell' > 'Command' textbox,
both the below worked for me:
echo $JOB_NAME
echo "$JOB_NAME"
You may set special variable for that based on global variable. Simple:
THEJOB="${JOB_NAME.substring(JOB_NAME.lastIndexOf('/') + 1, JOB_NAME.length())}"
Now $THEJOB is your job name
If you can run any Job, you can easily go to the Build section of that job and go to environment variables and see all the information there.
Nowadays there is an environment variable JOB_BASE_NAME which contains the last component of JOB_NAME.
For example: if JOB_NAME contains Cool_Jobs/Very_Cool_Jobs/The_Coolest then JOB_BASE_NAME will just contain The_Coolest

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