Is there any plugin available for Jenkins which provides a key-value store option for Jenkins?
The plugin which's functionality is close to that is the credentials plugin.
The goal is to have a plugin which stores global configuration parameters and this parameters are available to Jenkins jobs.
Go to Manage jenkins -> Configure System -> Global Properties -> Environment Variables:
Check the box and Click on ADD
Enter Key-value and Save
To access the variable simply ${<Your-key>}
Could the enthronement variables fit your need?
They are like regular shell variable.
If you are using the pipeline you can define it this way:
environment {
VAR = 'your_value'
}
and use it later in your build.
This is explained there: https://jenkins.io/doc/pipeline/tour/environment/
If you are writing your pipeline from the UI, you can add a 'source' step in your build step.
source your_environnement_setting
test='Hello'
And then the variables can simply be used like any shell var:
echo $test
If you have variables that you do not know in advance, but you know when you are triggering your job, you can also use the parametrized plugin:
https://wiki.jenkins.io/display/JENKINS/Parameterized+Build
Related
I have two jobs which are pipelined, I want to send the BUILD_NUMBER info of upstream job to downstream.
The main point is we shouldn't trigger the downstream project. Triggering of downstream project should be manual.
Whenever I trigger the downstream job it need to get the latest BUILD_NUMBER of the upstream.
How can I do this?
Use environment inject plugin in the second job
As mentioned by #VnoC in the first job write the buildnumber in the properties file like below
echo "last_build_number = ${BUILD_NUMBER}"> ../Common.properties
Mention in the inject enviornement variable the same property file path for the secod job (Path is repective to the active workspace so keeping it in a common location)
Now is the second job you can access the variable like $last_build_number
You could set an environment variable, which will then be read by the next job with WithEnv(${last_build_number}) {...}.
That is not ideal since this is listed as an anti-pattern in Top 10 Best Practices for Jenkins Pipeline Plugin
While you can edit some settings in the env global variable, you should use the withEnv syntax instead.
Why? because the env variable is global, changing it directly is discouraged as it changes the environment globally, so the withEnv syntax is recommended.
Still, in your case, that could be an acceptable workaround.
environment {
last_build_number = ${BUILD_NUMBER}
}
I thought first to write it in a file, but the feature of reading parameters from a file is still pending (JENKINS-27413).
We do a lot of Jenkins System Groovy Scripts to check our Jenkins configuration for things, such as someone allowing Anonymous access when they shouldn't. But there are times when we want to flag a job to be ignored in these self-audits.
My thought was to set an Environment Variable via the EnvInject plugin. But I can't see where you can use the Groovy System Scripts to get these values?
Anyone know how to do this? Alternatives to this method would also be helpfull.
You can use obtain the environmental variables from a System Groovy Script using the following:
def myVar = build.getEnvironment(listener).get('JOB_NAME')
println "JOB_NAME = " + myVar
A custom plugin we wrote for an older version of Jenkins uses an EnvironmentContributingAction to provide environment variables to the execution so they could be used in future build steps and passed as parameters to downstream jobs.
While attempting to convert our build to workflow, I'm having trouble accessing these variables:
node {
// this step queries an API and puts the results in
// environment variables called FE1|BE1_INTERNAL_ADDRESS
step([$class: 'SomeClass', parameter: foo])
// this ends up echoing 'null and null'
echo "${env.FE1_INTERNAL_ADDRESS} and ${env.BE1_INTERNAL_ADDRESS}"
}
Is there a way to access the environment variable that was injected? Do I have to convert this functionality to a build wrapper instead?
EnvironmentContributingAction is currently limited to AbstractBuilds, which WorkflowRuns are not, so pending JENKINS-29537 which I just filed, your plugin would need to be modified somehow. Options include:
Have the builder add a plain Action instead, then register an EnvironmentContributor whose buildEnvironmentFor(Run, …) checks for its presence using Run.getAction(Class).
Switch to a SimpleBuildWrapper which defines the environment variables within a scope, then invoke it from Workflow using the wrap step.
Depend on workflow-step-api and define a custom Workflow Step with comparable functionality but directly returning a List<String> or whatever makes sense in your context. (code sample)
Since PR-2975 is merged, you are able to use new interface:
void buildEnvVars(#Nonnull Run<?, ?> run, #Nonnull EnvVars env, #CheckForNull Node node)
It will be used by old type of builds as well.
I am using an Environment Variable so that that it can be modified and Recipient List will consume that environment variable.
So this value is passed as a build parameter:
Followed to that I am modifying it. Just as an example:
Now I am accessing this value in the recipient list:
Unfortunately Jenkins is not able to get this new value. It is using the old value. How this behavior can be fixed?
We need to use the EnvInject Plugin. One of the features is a build step that allows you to "inject" parameters into the build job from a settings file.
Create a property for the email list in the env.properties file:
echo "email_list=`dummy#test.com`"> env.properties
It will create the properties file in the job workspace directory.
env.properties
In Recipient list access this variable using the following:
"$email_list"
Is it possible to define a new build parameter/ENV variable in a build step so it was available in the next one?
Let's say I have 2 different "Execute shell" steps and want in the second step access the variable defined in the first one.
PS: the value for the variable is set in runtime - read from 3rd party resource, so I cannot harcode it, thus need to set it from the shell script.
The plugin EnvInject will do that for you.
It can be configured as pre-SCM step or as build steps. Put it in between your two existing build steps.
Update
In your case, it may be easier to just read the value of the "3rd party" file as part of your second build step:
var=$(<3rdpartyfile.txt)
After the above line, the contents of your 3rdpartyfile.txt will be available in environment variable var. You can now use $var as you would any other variable
You can also use something like
stage('stage-1') {
steps {
script{
env.variable = ${value};
}
}
}
Now you can use the variable env.variable throughout the pipeline