remove unused custom values

.github/workflows/k8s_tests.yaml

@@ -30,9 +30,6 @@ jobs:
 
       - name: Install yq
         run: sudo snap install yq
-
-      - name: Configure dns naming
-        run: ./k8s/scripts/configure_for_tests.sh 
 
       - name: deploy arlas
         run: ./k8s/scripts/start.sh 

docs/docs/arlas_exploration_stack_helm.md

@@ -56,15 +56,7 @@ The default storage class of the cluster might have a `delete` reclaim policy. F
 
 ### Configuration
 
-Most of the configuration should be done by setting values for the charts. Default values are set in the `values.yaml` files of the various charts. The `k8s/charts/arlas-stack/values_template.yaml` file is a __template__ that contains the values for a coherent stack deployment. If you need to change values, __do not modify directly this template file__. Instead, create a file in the project root directory named `custom_values.yaml` and set there the values you want to overwrite. Bellow is an example:
-
-```yaml
-global: 
-  dnsDomain: &arlasAppDnsDomain site.mydomain.io
-  elasticDnsDomain: &arlasAppElasticDnsDomain elastic.mydomain.k8s
-  minioDnsDomain: &arlasAppMinioDnsDomain minio.mydomain.k8s
-  keycloakDnsDomain: &arlasAppKeycloakDnsDomain keycloak.mydomain.k8s
-```
+Most of the configuration should be done by setting values for the charts. Default values are set in the `values.yaml` files of the various charts. 
 
 IMPORTANT: the passwords must be configured before the first install of the chart!
 
@@ -144,8 +136,6 @@ Four services are exposed with an ingress:
 - `apisix`, which serves ARLAS and AIAS, default DNS is `site.arlas.k8s`
 - `minio`, which serves as the object store, default DNS is `minio.arlas.k8s`
 
-These DNS names can be changed in `custom_values.yaml` with the model in `k8s/charts/arlas-stack/values.yaml`.
-
 In a test environment, you will need to link the ingress external IP with the domain names of the services. You can for instance add them in /etc/hosts:
 
 ```