[stable/traefik] Allow enabling traefik access logs (#1302)

* Added `accessLogs` section for traefik config

* Update Traefik chart README

* Fix typos and format consistency issues

* Increment Traefik chart minor version

stable/traefik/Chart.yaml

@@ -1,6 +1,6 @@
 apiVersion: v1
 name: traefik
-version: 1.6.0
+version: 1.7.0
 appVersion: 1.3.1
 description: A Traefik based Kubernetes ingress controller with Let's Encrypt support
 keywords:

stable/traefik/README.md

@@ -119,6 +119,9 @@ The following tables lists the configurable parameters of the Traefik chart and
 | `gzip.enabled`                  | Whether to use gzip compression                                      | `true`                                    |
 | `kubernetes.namespaces`         | List of Kubernetes namespaces to watch                               | All namespaces                            |
 | `kubernetes.labelSelector`      | Valid Kubernetes ingress label selector to watch (e.g `realm=public`)| No label filter                           |
+| `accessLogs.enabled`            | Whether to enable Traefik's access logs                              | `false`                                   |
+| `accessLogs.filePath`           | The path to the log file. Logs to stdout if omitted                  | None                                      |
+| `accessLogs.format`             | What format the log entries should be in. Either `common` or `json`  | `common`                                  |
 
 Specify each parameter using the `--set key=value[,key=value]` argument to `helm install`. For example:
 

stable/traefik/templates/configmap.yaml

@@ -47,6 +47,13 @@ data:
     labelselector = {{ .Values.kubernetes.labelSelector | quote }}
       {{- end}}
     {{- end}}
+    {{- if .Values.accessLogs.enabled }}
+    [accessLogs]
+    {{- if .Values.accessLogs.filePath }}
+    filePath = "{{ .Values.accessLogs.filePath }}"
+    {{- end}}
+    format = "{{ .Values.accessLogs.format }}"
+    {{- end}}
     {{- if .Values.acme.enabled }}
     [acme]
     email = "{{ .Values.acme.email }}"

stable/traefik/values.yaml

@@ -49,6 +49,11 @@ service:
   #   key: value
 gzip:
   enabled: true
+accessLogs:
+  enabled: false
+  ## Path to the access logs file. If not provided, Traefik defaults it to stdout.
+  # filePath: ""
+  format: common  # choices are: common, json
 # Kubernetes ingress filters
 #kubernetes:
 #  namespaces: