Jenkins 文件 : illegal string body character after dollar sign; solution: either escape a literal dollar sign "\$5" or bracket the value expression

Question

我的管道在 Jenkinsfile 的 sh """元素处失败。知道哪里出了问题吗？

    stage('Install dependencies') {
                when { expression { return params.dependencies } } }
        steps {
            sh """
              apt-get update
                            apt-get install -y openssh-server net-tools inetutils-ping python-pip rubygems
                            apt-get install -y \
                                apt-transport-https \
                                ca-certificates \
                                curl \
                                gnupg2 \
                                software-properties-common

                            curl -fsSL https://download.docker.com/linux/debian/gpg | apt-key add -

                            add-apt-repository \
                               "deb [arch=amd64] https://download.docker.com/linux/debian \
                               $(lsb_release -cs) \
                               stable"

                            apt-get update
                            apt-get install -y docker-ce docker-ce-cli containerd.io
                            curl -L "https://github.com/docker/compose/releases/download/1.23.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
                            chmod +x /usr/local/bin/docker-compose
                            gem install serverspec pygmy
            """
        }
    }

错误信息是:

WorkflowScript: 35: illegal string body character after dollar sign;
solution: either escape a literal dollar sign "\$5" or bracket the value expression "${5}" @ line 35, column 17.

Answer 1

替换双引号 """带单引号 ''' .

sh '''
    apt-get update 
    //...
'''

每当 Groovy 看到 $在双引号内，它将此字符串视为 GString并且做 string interpolation .但是，就您而言，字符 $不用于插值的上下文中并且它失败。或者，您可以逃避 \$但切换到单引号字符串更有意义。