fix(traefik) Fix arguments to fix metrics (#7827)

**Description**
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Please include a summary of the change and which issue is fixed. Please
also include relevant motivation and context. List any dependencies that
are required for this change.
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⚒️ Fixes  # <!--(issue)-->

The _args template did not handle the standard metrics question and thus
the `--metrics.prometheus.entrypoint=metrics` was not passed to traefik,
resulting in 404 errors in prometheus.

**⚙️ Type of change**

- [ ] ⚙️ Feature/App addition
- [x] 🪛 Bugfix
- [ ] ⚠️ Breaking change (fix or feature that would cause existing
functionality to not work as expected)
- [ ] 🔃 Refactor of current code

**🧪 How Has This Been Tested?**
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Please describe the tests that you ran to verify your changes. Provide
instructions so we can reproduce. Please also list any relevant details
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Run `helm template --namespace=ix-traefik --set
metrics.main.enabled=true .` in the charts directory. Check that `args`
for the traefik pods contains

- "--entryPoints.metrics.address=:9180/tcp"
- "--metrics.prometheus=true"
- "--metrics.prometheus.entrypoint=metrics"

**📃 Notes:**
<!-- Please enter any other relevant information here -->

**✔️ Checklist:**

- [x] ⚖️ My code follows the style guidelines of this project
- [x] 👀 I have performed a self-review of my own code
- [ ] #️⃣ I have commented my code, particularly in hard-to-understand
areas
- [ ] 📄 I have made corresponding changes to the documentation
- [ ] ⚠️ My changes generate no new warnings
- [ ] 🧪 I have added tests to this description that prove my fix is
effective or that my feature works
- [x] ⬆️ I increased versions for any altered app according to semantic
versioning

**➕ App addition**

If this PR is an app addition please make sure you have done the
following.

- [ ] 🪞 I have opened a PR on
[truecharts/containers](https://github.com/truecharts/containers) adding
the container to TrueCharts mirror repo.
- [ ] 🖼️ I have added an icon in the Chart's root directory called
`icon.png`

---

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---------

Signed-off-by: Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl>
Co-authored-by: Kjeld Schouten-Lebbing <kjeld@schouten-lebbing.nl>

charts/enterprise/traefik/Chart.yaml

@@ -23,7 +23,7 @@ sources:
   - https://github.com/traefik/traefik-helm-chart
   - https://traefik.io/
 type: application
-version: 17.0.12
+version: 17.0.13
 annotations:
   truecharts.org/catagories: |
     - network

charts/enterprise/traefik/templates/_args.tpl

@@ -24,25 +24,29 @@ args:
   {{- end }}
   - "--api.dashboard=true"
   - "--ping=true"
-  {{- if .Values.metrics }}
-  {{- if .Values.metrics.datadog }}
+  {{- if .Values.traefikMetrics }}
+  {{- if .Values.traefikMetrics.datadog }}
   - "--metrics.datadog=true"
-  - "--metrics.datadog.address={{ .Values.metrics.datadog.address }}"
+  - "--metrics.datadog.address={{ .Values.traefikMetrics.datadog.address }}"
   {{- end }}
-  {{- if .Values.metrics.influxdb }}
+  {{- if .Values.traefikMetrics.influxdb }}
   - "--metrics.influxdb=true"
-  - "--metrics.influxdb.address={{ .Values.metrics.influxdb.address }}"
-  - "--metrics.influxdb.protocol={{ .Values.metrics.influxdb.protocol }}"
+  - "--metrics.influxdb.address={{ .Values.traefikMetrics.influxdb.address }}"
+  - "--metrics.influxdb.protocol={{ .Values.traefikMetrics.influxdb.protocol }}"
   {{- end }}
-  {{- if .Values.metrics.prometheus }}
+  {{- if .Values.traefikMetrics.statsd }}
+  - "--metrics.statsd=true"
+  - "--metrics.statsd.address={{ .Values.traefikMetrics.statsd.address }}"
+  {{- if or .Values.traefikMetrics.prometheus }}
   - "--metrics.prometheus=true"
   - "--metrics.prometheus.entrypoint=metrics"
   {{- end }}
-  {{- if .Values.metrics.statsd }}
-  - "--metrics.statsd=true"
-  - "--metrics.statsd.address={{ .Values.metrics.statsd.address }}"
   {{- end }}
   {{- end }}
+  {{- if or .Values.metrics.main.enabled }}
+  - "--metrics.prometheus=true"
+  - "--metrics.prometheus.entrypoint=metrics"
+  {{- end }}
   {{- if .Values.providers.kubernetesCRD.enabled }}
   - "--providers.kubernetescrd"
   {{- end }}

charts/enterprise/traefik/values.yaml

@@ -144,8 +144,6 @@ globalArguments:
 # All available options available on https://docs.traefik.io/reference/static-configuration/cli/
 ## Use curly braces to pass values: `helm install --set="additionalArguments={--providers.kubernetesingress.ingressclass=traefik-internal,--log.level=DEBUG}"`
 additionalArguments:
-  - "--metrics.prometheus"
-  - "--ping"
   - "--serverstransport.insecureskipverify=true"
   - "--providers.kubernetesingress.allowexternalnameservices=true"