Powershell script in declarative jenkins pipeline - powershell

Question

I am using environment credential to get the username and password. When I echo them they are printed perfectly as ****.
The next comes the powershell commands, when I run them separately, all the commands works perfectly. But through Jenkins pipeline it throws me the following error:
groovy.lang.MissingPropertyException: No such property: psw for class: groovy.lang.Binding
Can anyone explain is this correct way to incorporate powershell in Jenkins pipeline?
environment {
CREDENTIAL = credentials('Test')
}
stage('Deployment') {
steps {
echo "$CREDENTIAL_USR"
echo "$CREDENTIAL_PSW"
powershell """($psw = ConvertTo-SecureString -String $CREDENTIAL_PSW -AsPlainText -Force)"""
powershell """($mySecureCreds = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $CREDENTIAL_USR, $psw -Verbose)"""
powershell """(Set-Item WSMan:/localhost/Client/TrustedHosts -Value "*" -Force)"""
powershell """($session = New-PSSession -ComputerName "192.111.111.111" -Credential $mySecureCreds)"""

Answer 1

In case someone is here, and still trying to figure out what is the issue. I will share the solution that worked for me.
Use escaping before variable "$" sign in multi-line string.
powershell ("""
\$psw = ConvertTo-SecureString -String \$CREDENTIAL_PSW -AsPlainText -Force
\$mySecureCreds = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList \$CREDENTIAL_USR, \$psw -Verbose
Set-Item WSMan:/localhost/Client/TrustedHosts -Value "*" -Force
\$session = New-PSSession -ComputerName "192.111.111.111" -Credential \$mySecureCreds
""")

Answer 2

You can easily run multiline powershell commands in jenkins pipeline like this. Example, if you want to login to azure using service principal, you'll do something like below:
powershell '''
$pass = ConvertTo-SecureString your_client_secret -AsPlainText –Force
$cred = New-Object -TypeName pscredential –ArgumentList your_client_id, $pass
Login-AzureRmAccount -Credential $cred -ServicePrincipal –TenantId your_tenant_id
-vaultName "eusdevmbe2keyvault" -name "normalizedcontainername").SecretValueText
'''
Check here for reference https://jenkins.io/blog/2017/07/26/powershell-pipeline/

Answer 3

At the moment you're running each line in its own powershell process, so the results of the line before are not available to the next command.
I think you just need to move the script into a multi-line string:
powershell ("""
$psw = ConvertTo-SecureString -String $CREDENTIAL_PSW -AsPlainText -Force
$mySecureCreds = New-Object -TypeName System.Management.Automation.PSCredential -ArgumentList $CREDENTIAL_USR, $psw -Verbose
Set-Item WSMan:/localhost/Client/TrustedHosts -Value "*" -Force
$session = New-PSSession -ComputerName "192.111.111.111" -Credential $mySecureCreds
""")