I used the following command to install ArgoCD in Kubernetes cluster. Kubernetes cluster is not managed I installed it using Kubespray.

helm install argocd argo/argo-cd 
  --version 7.4.1 
  --values values.yaml 
  --namespace argocd --create-namespace

Here is my pods:

NAME                                                READY   STATUS    RESTARTS   AGE
argocd-application-controller-0                     1/1     Running   0          45m
argocd-applicationset-controller-5459747bc5-xpks2   1/1     Running   0          45m
argocd-dex-server-8f8ffb668-7xwnd                   1/1     Running   0          45m
argocd-notifications-controller-64b68b9d74-fzmw9    1/1     Running   0          45m
argocd-redis-655c4c8b69-mwdtk                       1/1     Running   0          45m
argocd-repo-server-6c7f57d88c-gq4wr                 1/1     Running   0          45m
argocd-server-656fd4d94c-rbqsg                      1/1     Running   0          45m

Here is my ingress:

NAME            CLASS    HOSTS              ADDRESS   PORTS   AGE
argocd-server   <none>   argocd.arman.com             80      45m

And its configuration:

apiVersion: v1
items:
- apiVersion: networking.k8s.io/v1
  kind: Ingress
  metadata:
    annotations:
      meta.helm.sh/release-name: argocd
      meta.helm.sh/release-namespace: argocd
    creationTimestamp: "2024-08-11T04:08:49Z"
    generation: 1
    labels:
      app.kubernetes.io/component: server
      app.kubernetes.io/instance: argocd
      app.kubernetes.io/managed-by: Helm
      app.kubernetes.io/name: argocd-server
      app.kubernetes.io/part-of: argocd
      app.kubernetes.io/version: v2.12.0
      helm.sh/chart: argo-cd-7.4.1
    name: argocd-server
    namespace: argocd
    resourceVersion: "559682"
    uid: 074ea38c-a635-441d-aae8-6cdf3740e8da
  spec:
    rules:
    - host: argocd.arman.com
      http:
        paths:
        - backend:
            service:
              name: argocd-server
              port:
                number: 80
          path: /
          pathType: Prefix
  status:
    loadBalancer: {}
kind: List
metadata:
  resourceVersion: ""

And this is my Services:

NAMESPACE        NAME                                 TYPE           CLUSTER-IP      EXTERNAL-IP       PORT(S)                      AGE
argocd           argocd-applicationset-controller     ClusterIP      10.233.46.4     <none>            7000/TCP                     48m
argocd           argocd-dex-server                    ClusterIP      10.233.13.214   <none>            5556/TCP,5557/TCP            48m
argocd           argocd-redis                         ClusterIP      10.233.7.225    <none>            6379/TCP                     48m
argocd           argocd-repo-server                   ClusterIP      10.233.48.118   <none>            8081/TCP                     48m
argocd           argocd-server                        ClusterIP      10.233.46.102   <none>            80/TCP,443/TCP               48m
cert-manager     cert-manager                         ClusterIP      10.233.11.128   <none>            9402/TCP                     18h
cert-manager     cert-manager-webhook                 ClusterIP      10.233.23.198   <none>            443/TCP                      18h
default          kubernetes                           ClusterIP      10.233.0.1      <none>            443/TCP                      2d18h
ingress-nginx    ingress-nginx-controller             LoadBalancer   10.233.27.40    192.168.230.216   80:32583/TCP,443:31565/TCP   16h
ingress-nginx    ingress-nginx-controller-admission   ClusterIP      10.233.40.13    <none>            443/TCP                      16h
kube-system      coredns                              ClusterIP      10.233.0.3      <none>            53/UDP,53/TCP,9153/TCP       2d18h
metallb-system   metallb-webhook-service              ClusterIP      10.233.20.253   <none>            443/TCP                      18h

I set the IP of argocd.arman.com to 192.168.230.216 in /etc/hosts but when I try to connect to Argocd, nginx gaves me 404

however I am able to connect to it using port forward:

kubectl -n argocd port-forward svc/argocd-server 8000:80

If more information is needed let me know.