diff --git a/admin/README.md b/admin/README.md
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--- a/admin/README.md
+++ b/admin/README.md
@@ -10,6 +10,60 @@ the various directories and in the `.gitlab-ci.yml` configuration file.
 
 ## K3s - Kubekorner
 
+### Nginx Ingress Controller
+
+At the time of writing, K3s comes with the traefik ingress controller
+with a version less than 2.0. It is our (geosphere project) that this
+controller is buggy and doesn't handle HTTPS certificates in an expected
+way. We've chosen to uninstalled the traefik controller and instead install
+the nginx ingress controller. It is possible in the future that newer versions
+of traefik (2.3+ is availabe but not supported by k3s) will not have the issues
+we've run into. It is also possible nginx will be used by K3s as an alternative
+ingress option.
+
+The [k3s FAQ](https://rancher.com/docs/k3s/latest/en/faq/) includes the
+following:
+
+```bash
+How can I use my own Ingress instead of Traefik?
+Simply start K3s server with --disable traefik and deploy your ingress.
+```
+
+After further research we discovered that additional steps may be required:
+
+See https://github.com/rancher/k3s/issues/1160#issuecomment-561572618
+
+```bash
+For the record and future me, this is what needs to be done to disable Traefik during initial setup:
+
+    Remove traefik helm chart resource: kubectl -n kube-system delete helmcharts.helm.cattle.io traefik
+    Stop the k3s service: sudo service k3s stop
+    Edit service file sudo nano /etc/systemd/system/k3s.service and add this line to ExecStart:
+
+    --no-deploy traefik \
+
+    Reload the service file: sudo systemctl daemon-reload
+    Remove the manifest file from auto-deploy folder: sudo rm /var/lib/rancher/k3s/server/manifests/traefik.yaml
+    Start the k3s service: sudo service k3s start
+```
+
+Note the above `--no-deploy` flag is deprecated and `--disable` should be used.
+
+Alternatively, k3s could be updated completely with the `--disable traefik` flag added:
+
+```bash
+curl -sfL https://get.k3s.io | INSTALL_K3S_EXEC="server --no-deploy traefik --write-kubeconfig-mode 644" sh
+```
+
+Then nginx can be installed by following the instructions and settings
+described here:
+https://github.com/kubernetes/ingress-nginx/tree/master/charts/ingress-nginx
+
+```bash
+helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
+helm install ingress-nginx ingress-nginx/ingress-nginx --set controller.metrics.enabled=true
+```
+
 ### Local Path Configuration
 
 When running on a K3S-based (rancher) cluster like the one currently running