issue when loading the yaml or yamls in different formats.

jenkins.yml

clouds:
  - kubernetes:
      containerCapStr: "40"
      credentialsId: "kube"
      jenkinsTunnel: "jenkins-discovery.default.svc.cluster.local:50000"
      jenkinsUrl: "http://jenkins-ui.default.svc.cluster.local:8080"
      maxRequestsPerHostStr: "32"
      name: "kubernetes"
      namespace: "default"
      serverUrl: "https://private"
      skipTlsVerify: true
      templates:
        - name: "test-template"
          namespace: "default"
          label: "test"
          yaml: |
                ---
                apiVersion: v1
                kind: Pod
                metadata:
                  name: dind
                spec:
                  containers:
                    - name: builder
                      image: docker:18.06.1-git
                      imagePullPolicy: Always
                      command: ['cat']
                      tty: true
                      env:
                      - name: DOCKER_HOST
                        value: tcp://localhost:2375
                    - name: dind
                      image: docker:18.06.1-dind
                      securityContext:
                        privileged: true
                      volumeMounts:
                        - name: dind-storage
                          mountPath: /var/lib/docker
                  volumes:
                    - name: dind-storage
                      emptyDir: {}