Merge pull request 'Auto pull root certificate and key from Jenkins vault' (#33) from dev into master

Reviewed-on: https://remvpn.olssonul.com/IaC/rproxy/pulls/33

Jenkinsfile

@@ -41,9 +41,13 @@ pipeline {
             }
             steps {
                 script {
-                    def userInput = input message: 'Upload RootCA certificate and key', parameters: [base64File(name: 'rootca'), base64File(name: 'rootca_key')]
-                    writeFile(file: 'roles/rproxy/files/RootCA.crt', text: new String(userInput['rootca'].decodeBase64()))
-                    writeFile(file: 'roles/rproxy/files/RootCA.key', text: new String(userInput['rootca_key'].decodeBase64()))
+                    withCredentials([
+                            file(credentialsId: "ROOTCA_CERT", variable: "rootca"),
+                            file(credentialsId: "ROOTCA_KEY", variable: "rootca_key")
+                        ]) {
+                        sh(script: "cp ${rootca} roles/gitlab/files/RootCA.crt", returnStdout: false)
+                        sh(script: "cp ${rootca_key} roles/gitlab/files/RootCA.key", returnStdout: false)
+                    } 
                 }
             }
         }