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Exposing CDI Upload Proxy

The purpose of this document is to show how to expose CDI Upload Proxy service in a production environment.

Prerequesites

You have a Kubernetes cluster up and running with CDI installed.

In order to upload data to your cluster, the cdi-uploadproxy service must be accessible from outside the cluster. This can be achieved using Ingress (Kubernetes) or Route (Openshift).

Kubernetes

Before starting to work with Ingress resource, you will need to setup an Ingress Controller. Simply creating the resource will take no affect. There are number of Ingress controllers you can choose from.

Create Ingress for the upload proxy:

cat <<EOF | kubectl apply -f -
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: cdi-uploadproxy-ingress
  namespace: cdi
  annotations:
    nginx.org/ssl-services: "cdi-uploadproxy"
    ingress.kubernetes.io/ssl-passthrough: "true"
    nginx.ingress.kubernetes.io/secure-backends: "true"
    nginx.ingress.kubernetes.io/proxy-body-size: "0"
spec:
  rules:
    # change to a valid FQDN in your organization
  - host: cdi-uploadproxy.example.com
    http:
      paths:
      - backend:
          service:
            name: cdi-uploadproxy
            port:
              number: 443
  tls:
  - hosts:
    # change to a valid FQDN in your organization
    - cdi-uploadproxy.example.com
EOF

Openshift

Using router wildcard certificate and generated hostname with reencrypt route:

oc get cm -n cdi cdi-uploadproxy-signer-bundle -o=jsonpath="{.data['ca-bundle\.crt']}" > tls.crt && \
oc create route reencrypt -n cdi --service=cdi-uploadproxy --dest-ca-cert=tls.crt && \
rm tls.crt

Using your own key/cert with passthrough route

oc delete secret -n cdi cdi-uploadproxy-server-cert && \
oc create secret tls -n cdi cdi-uploadproxy-server-cert --key tls.key --cert tls.crt && \
oc create route passthrough -n cdi --service=cdi-uploadproxy && \
oc delete pod -n cdi -l cdi.kubevirt.io=cdi-uploadproxy

Upload an Image

Assuming you completed the steps in Upload document execute the following to upload the image:

curl -v -H "Authorization: Bearer $TOKEN" --data-binary @tests/images/cirros-qcow2.img https://cdi-uploadproxy.example.com/v1alpha1/upload