feat: ✨ add support of experimental-v3.0 unstable version

EXAMPLES.md

@@ -610,3 +610,15 @@ spec:
     name: release-name-traefik
   maxReplicas: 3
 ```
+
+# Use latest build of Traefik v3 from master
+
+An experimental build of Traefik Proxy is available on a specific repository.
+
+It can be used with those _values_:
+
+```yaml
+image:
+  repository: traefik/traefik
+  tag: experimental-v3.0
+```

traefik/templates/requirements.yaml

@@ -1,3 +1,6 @@
-{{- if semverCompare "<3.0.0-0" (include "imageVersion" $) }}
-  {{- fail "ERROR: This version of the Chart only supports Traefik Proxy v3" -}}
+{{- $version := include "imageVersion" $ }}
+{{- if (ne $version "experimental-v3.0") }}
+  {{- if (semverCompare "<3.0.0-0" $version) }}
+    {{- fail "ERROR: This version of the Chart only supports Traefik Proxy v3" -}}
+  {{- end }}
 {{- end }}

traefik/tests/requirements-config_test.yaml

@@ -9,4 +9,10 @@ tests:
     asserts:
       - failedTemplate:
           errorMessage: "ERROR: This version of the Chart only supports Traefik Proxy v3"
-
+  - it: should pass when trying to use this Chart with Traefik Proxy v3 experimental
+    set:
+      image:
+        repository: traefik/traefik
+        tag: experimental-v3.0
+    asserts:
+      - notFailedTemplate: {}