如何在詹金斯管道中使用参数化构建？

Question

I am having these lines in my Jenkinsfile:

   parameters {
    string(name: 'DATABASE', defaultValue: 'jenkinsdatabase', 
    description: 'The name of the database')
}

(...)

Now I want to use the value of ${params.DATABASE} in a step of a stage eg

sh 'mysql --user ${USER} -p${PASSWORD} --host ${HOST} -e "DROP DATABASE IF EXISTS ${params.DATABASE};CREATE DATABASE ${params.DATABASE} DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_general_ci; commit;";export GRADLE_OPTS="-Xms1536m -Xmx1536m"'

But this ends with a exeception: Bad substitution

Can anybody help me?

Answer 1

Your sh script body uses single quotes around it.

sh '...'

Since these are single quotes, string interpolation will not occur. This means that all of your $ strings will use the shell variable substitution instead of the Groovy substitution. You are getting a Bad substitution in the shell because the shell won't be able to substitute ${params.DATABASE} because that is an invalid shell substitution.

params is a Groovy variable, so switching your single quotes to double quotes will perform string interpolation of the variables.

sh "..."