feat(Traefik Proxy): add abortOnPluginFailure field

Author: bmagic

traefik/VALUES.md

@@ -62,6 +62,7 @@ Kubernetes: `>=1.22.0-0`
 | deployment.terminationGracePeriodSeconds | int | `60` | Amount of time (in seconds) before Kubernetes will send the SIGKILL signal if Traefik does not shut down |
 | env | list | See _values.yaml_ | Additional Environment variables to be passed to Traefik's binary |
 | envFrom | list | `[]` | Environment variables to be passed to Traefik's binary from configMaps or secrets |
+| experimental.abortOnPluginFailure | bool | `false` | Defines whether all plugins must be loaded successfully for Traefik to start |
 | experimental.kubernetesGateway.enabled | bool | `false` | Enable traefik experimental GatewayClass CRD |
 | experimental.plugins | object | `{}` | Enable traefik experimental plugins |
 | extraObjects | list | `[]` | Extra objects to deploy (value evaluated as a template)  In some cases, it can avoid the need for additional, extended or adhoc deployments. See #595 for more details and traefik/tests/values/extra.yaml for example. |

traefik/templates/_podtemplate.tpl

@@ -448,6 +448,9 @@
           - "--experimental.plugins.{{ $pluginName }}.moduleName={{ $plugin.moduleName }}"
           - "--experimental.plugins.{{ $pluginName }}.version={{ $plugin.version }}"
           {{- end }}
+          {{- if and (semverCompare ">=3.2.1-0" $version) (.Values.experimental.abortOnPluginFailure)}}
+          - "--experimental.abortonpluginfailure={{ .Values.experimental.abortOnPluginFailure }}"
+          {{- end }}
           {{- if .Values.providers.kubernetesCRD.enabled }}
           - "--providers.kubernetescrd"
            {{- if .Values.providers.kubernetesCRD.labelSelector }}

traefik/tests/deployment-config_test.yaml

@@ -201,6 +201,14 @@ tests:
             - --providers.kubernetesingress.ingressendpoint.publishedservice=NAMESPACE/RELEASE-NAME-traefik
             - --entryPoints.websecure.http.tls=true
             - --log.level=INFO
+  - it: should have abortOnPluginFailure, when enabled
+    set:
+      experimental:
+        abortOnPluginFailure: true
+    asserts:
+      - contains:
+          path: spec.template.spec.containers[0].args
+          content: "--experimental.abortonpluginfailure=true"
   - it: should have http redirections enabled, when enabled with redirectTo
     set:
       ports:

traefik/values.schema.json

@@ -149,6 +149,9 @@
         },
         "experimental": {
             "properties": {
+                "abortOnPluginFailure": {
+                    "type": "boolean"
+                },
                 "kubernetesGateway": {
                     "properties": {
                         "enabled": {

traefik/values.yaml

@@ -120,6 +120,8 @@ core:  # @schema additionalProperties: false
 
 # Traefik experimental features
 experimental:
+  # -- Defines whether all plugins must be loaded successfully for Traefik to start
+  abortOnPluginFailure: false
   # -- Enable traefik experimental plugins
   plugins: {}
   # demo: