Basic Authentication

This example shows how to add authentication in a Ingress rule using a secret that contains a file generated with htpasswd. It's important the file generated is named auth (actually - that the secret has a key data.auth), otherwise the ingress-controller returns a 503.

$ htpasswd -c auth foo
New password: <bar>
New password:
Re-type new password:
Adding password for user foo
$ kubectl create secret generic basic-auth --from-file=auth
secret "basic-auth" created
$ kubectl get secret basic-auth -o yaml
apiVersion: v1
data:
  auth: Zm9vOiRhcHIxJE9GRzNYeWJwJGNrTDBGSERBa29YWUlsSDkuY3lzVDAK
kind: Secret
metadata:
  name: basic-auth
  namespace: default
type: Opaque
echo "
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: ingress-with-auth
  annotations:
    # type of authentication
    nginx.ingress.kubernetes.io/auth-type: basic
    # name of the secret that contains the user/password definitions
    nginx.ingress.kubernetes.io/auth-secret: basic-auth
    # message to display with an appropriate context why the authentication is required
    nginx.ingress.kubernetes.io/auth-realm: 'Authentication Required - foo'
spec:
  rules:
  - host: foo.bar.com
    http:
      paths:
      - path: /
        backend:
          serviceName: http-svc
          servicePort: 80
" | kubectl create -f -
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