Support Accept-Encoding header weights with Compress middleware

docs/content/middlewares/http/compress.md

@@ -214,3 +214,44 @@ http:
   [http.middlewares.test-compress.compress]
     minResponseBodyBytes = 1200
 ```
+
+### `defaultEncoding`
+
+_Optional, Default=""_
+
+`defaultEncoding` specifies the default encoding if the `Accept-Encoding` header is not in the request or contains a wildcard (`*`).
+
+There is no fallback on the `defaultEncoding` when the header value is empty or unsupported.
+
+```yaml tab="Docker & Swarm"
+labels:
+  - "traefik.http.middlewares.test-compress.compress.defaultEncoding=gzip"
+```
+
+```yaml tab="Kubernetes"
+apiVersion: traefik.io/v1alpha1
+kind: Middleware
+metadata:
+  name: test-compress
+spec:
+  compress:
+    defaultEncoding: gzip
+```
+
+```yaml tab="Consul Catalog"
+- "traefik.http.middlewares.test-compress.compress.defaultEncoding=gzip"
+```
+
+```yaml tab="File (YAML)"
+http:
+  middlewares:
+    test-compress:
+      compress:
+        defaultEncoding: gzip
+```
+
+```toml tab="File (TOML)"
+[http.middlewares]
+  [http.middlewares.test-compress.compress]
+    defaultEncoding = "gzip"
+```

docs/content/reference/dynamic-configuration/docker-labels.yml

@@ -18,6 +18,7 @@
 - "traefik.http.middlewares.middleware05.circuitbreaker.recoveryduration=42s"
 - "traefik.http.middlewares.middleware05.circuitbreaker.responsecode=42"
 - "traefik.http.middlewares.middleware06.compress=true"
+- "traefik.http.middlewares.middleware06.compress.defaultencoding=foobar"
 - "traefik.http.middlewares.middleware06.compress.excludedcontenttypes=foobar, foobar"
 - "traefik.http.middlewares.middleware06.compress.includedcontenttypes=foobar, foobar"
 - "traefik.http.middlewares.middleware06.compress.minresponsebodybytes=42"

docs/content/reference/dynamic-configuration/file.toml

@@ -143,6 +143,7 @@
         excludedContentTypes = ["foobar", "foobar"]
         includedContentTypes = ["foobar", "foobar"]
         minResponseBodyBytes = 42
+        defaultEncoding = "foobar"
     [http.middlewares.Middleware07]
       [http.middlewares.Middleware07.contentType]
         autoDetect = true

docs/content/reference/dynamic-configuration/file.yaml

@@ -152,6 +152,7 @@ http:
           - foobar
           - foobar
         minResponseBodyBytes: 42
+        defaultEncoding: foobar
     Middleware07:
       contentType:
         autoDetect: true

docs/content/reference/dynamic-configuration/kubernetes-crd-definition-v1.yml

@@ -825,6 +825,11 @@ spec:
                   This middleware compresses responses before sending them to the client, using gzip compression.
                   More info: https://doc.traefik.io/traefik/v3.0/middlewares/http/compress/
                 properties:
+                  defaultEncoding:
+                    description: DefaultEncoding specifies the default encoding if
+                      the `Accept-Encoding` header is not in the request or contains
+                      a wildcard (`*`).
+                    type: string
                   excludedContentTypes:
                     description: |-
                       ExcludedContentTypes defines the list of content types to compare the Content-Type header of the incoming requests and responses before compressing.

docs/content/reference/dynamic-configuration/kv-ref.md

@@ -21,6 +21,7 @@ THIS FILE MUST NOT BE EDITED BY HAND
 | `traefik/http/middlewares/Middleware05/circuitBreaker/fallbackDuration` | `42s` |
 | `traefik/http/middlewares/Middleware05/circuitBreaker/recoveryDuration` | `42s` |
 | `traefik/http/middlewares/Middleware05/circuitBreaker/responseCode` | `42` |
+| `traefik/http/middlewares/Middleware06/compress/defaultEncoding` | `foobar` |
 | `traefik/http/middlewares/Middleware06/compress/excludedContentTypes/0` | `foobar` |
 | `traefik/http/middlewares/Middleware06/compress/excludedContentTypes/1` | `foobar` |
 | `traefik/http/middlewares/Middleware06/compress/includedContentTypes/0` | `foobar` |

docs/content/reference/dynamic-configuration/traefik.io_middlewares.yaml

@@ -183,6 +183,11 @@ spec:
                   This middleware compresses responses before sending them to the client, using gzip compression.
                   More info: https://doc.traefik.io/traefik/v3.0/middlewares/http/compress/
                 properties:
+                  defaultEncoding:
+                    description: DefaultEncoding specifies the default encoding if
+                      the `Accept-Encoding` header is not in the request or contains
+                      a wildcard (`*`).
+                    type: string
                   excludedContentTypes:
                     description: |-
                       ExcludedContentTypes defines the list of content types to compare the Content-Type header of the incoming requests and responses before compressing.