In Google Kubernetes Engine I created a POC cluster for our company which worked flawlessly. But now, when I try to create our production environment I cannot seem to get the imagesPullSecrets to work, it's the exact same credentials as in the POC, Same helm chart and the exact same regcred yaml file.

Yet i keep getting the classical:

Back-off pulling image "registry.company.co/frontend/company-web/upload": ImagePullBackOff 

• Pulling manually on the node works with the same credentials as those that i supplied in the imagesPullSecret
• I've tried defining the imagesPullSecret both on a chart level and on the Service Account
• I've verified the secret format and directly copied the credentials there when trying the manual pulls
• GKE picks up regcred and shows it in the deployment

Regcred generated by kubectl create secret docker-registry regcred --docker-server="registry.company.co" --docker-username="gitlab" --docker-password="[PASSWORD]"

regcred secret

kind: Secret
apiVersion: v1
metadata:
  name: regcred
  namespace: default
data:
  .dockerconfigjson: eyJhdXRocyI6eyJyZWdpc3RyeS5jb21wYW55LmNvIjp7InVzZXJuYW1lIjoiZ2l0bGFiIiwicGFzc3dvcmQiOiJbUkVEQUNURURdIiwiYXV0aCI6IloybDBiR0ZpT2x0QmJITnZJRkpsWkdGamRHVmtYUT09In19fQ==
type: kubernetes.io/dockerconfigjson

Service Account

kind: ServiceAccount
apiVersion: v1
metadata:
  name: default
  namespace: default
secrets:
  - name: default-token-jktj5
imagePullSecrets:
  - name: regcred

Deployment.yaml

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
    name: nfs-server
spec:
    replicas: 1
    selector:
        matchLabels:
            role: nfs-server
    template:
        metadata:
            labels:
                role: nfs-server
        spec:
            containers:
                - name: nfs-server
                  image: gcr.io/google_containers/volume-nfs:latest
                  ports:
                      - name: nfs
                        containerPort: 2049
                      - name: mountd
                        containerPort: 20048
                      - name: rpcbind
                        containerPort: 111
                  securityContext:
                      privileged: true
                  volumeMounts:
                      - mountPath: /exports
                        name: mypvc
            initContainers:
                - name: init-volume-perms
                  imagePullPolicy: Always
                  image: alpine
                  command: ["/bin/sh", "-c"]
                  args: ["mkdir /mnt/company-logos; mkdir /mnt/uploads; chown -R 1337:1337 /mnt"]
                  volumeMounts:
                      - mountPath: /mnt
                        name: mypvc
                - name: company-web-uploads
                  image: registry.company.co/frontend/company-web/uploads
                  imagePullPolicy: Always
                  volumeMounts:
                      - mountPath: /var/lib/company/web/uploads
                        subPath: uploads
                        name: mypvc
                - name: company-logos
                  image: registry.company.co/backend/pdf-service/company-logos
                  imagePullPolicy: Always
                  volumeMounts:
                      - mountPath: /var/lib/company/shared/company-logos
                        subPath: company-logos
                        name: mypvc
            volumes:
                - name: mypvc
                  gcePersistentDisk:
                      pdName: gke-nfs-disk
                      fsType: ext4

I've looked around, following different guides from the ground up to no success.

So I'm at a total loss as to what to do.

Default namespace all around