Implement customizable minimum body size for compress middleware

docs/content/middlewares/http/compress.md

@@ -60,7 +60,7 @@ http:
 
     Responses are compressed when the following criteria are all met:
 
-    * The response body is larger than `1400` bytes.
+    * The response body is larger than the configured minimum amount of bytes (default is `1024`).
     * The `Accept-Encoding` request header contains `gzip`.
     * The response is not already compressed, i.e. the `Content-Encoding` response header is not already set.
 
@@ -122,3 +122,55 @@ http:
   [http.middlewares.test-compress.compress]
     excludedContentTypes = ["text/event-stream"]
 ```
+
+### `minResponseBodyBytes`
+
+`minResponseBodyBytes` specifies the minimum amount of bytes a response body must have to be compressed.
+
+The default value is `1024`, which should be a reasonable value for most cases.
+
+Responses smaller than the specified values will not be compressed.
+
+```yaml tab="Docker"
+labels:
+  - "traefik.http.middlewares.test-compress.compress.minresponsebodybytes=1200"
+```
+
+```yaml tab="Kubernetes"
+apiVersion: traefik.containo.us/v1alpha1
+kind: Middleware
+metadata:
+  name: test-compress
+spec:
+  compress:
+    minResponseBodyBytes: 1200
+```
+
+```yaml tab="Consul Catalog"
+- "traefik.http.middlewares.test-compress.compress.minresponsebodybytes=1200"
+```
+
+```json tab="Marathon"
+"labels": {
+  "traefik.http.middlewares.test-compress.compress.minresponsebodybytes": 1200
+}
+```
+
+```yaml tab="Rancher"
+labels:
+  - "traefik.http.middlewares.test-compress.compress.minresponsebodybytes=1200"
+```
+
+```yaml tab="File (YAML)"
+http:
+  middlewares:
+    test-compress:
+      compress:
+        minResponseBodyBytes: 1200
+```
+
+```toml tab="File (TOML)"
+[http.middlewares]
+  [http.middlewares.test-compress.compress]
+    minResponseBodyBytes = 1200
+```

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

@@ -13,6 +13,7 @@
 - "traefik.http.middlewares.middleware04.circuitbreaker.expression=foobar"
 - "traefik.http.middlewares.middleware05.compress=true"
 - "traefik.http.middlewares.middleware05.compress.excludedcontenttypes=foobar, foobar"
+- "traefik.http.middlewares.middleware05.compress.minresponsebodybytes=42"
 - "traefik.http.middlewares.middleware06.contenttype.autodetect=true"
 - "traefik.http.middlewares.middleware07.digestauth.headerfield=foobar"
 - "traefik.http.middlewares.middleware07.digestauth.realm=foobar"

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

@@ -122,6 +122,7 @@
     [http.middlewares.Middleware05]
       [http.middlewares.Middleware05.compress]
         excludedContentTypes = ["foobar", "foobar"]
+        minResponseBodyBytes = 42
     [http.middlewares.Middleware06]
       [http.middlewares.Middleware06.contentType]
         autoDetect = true

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

@@ -128,6 +128,7 @@ http:
         excludedContentTypes:
         - foobar
         - foobar
+        minResponseBodyBytes: 42
     Middleware06:
       contentType:
         autoDetect: true

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

@@ -15,6 +15,7 @@
 | `traefik/http/middlewares/Middleware04/circuitBreaker/expression` | `foobar` |
 | `traefik/http/middlewares/Middleware05/compress/excludedContentTypes/0` | `foobar` |
 | `traefik/http/middlewares/Middleware05/compress/excludedContentTypes/1` | `foobar` |
+| `traefik/http/middlewares/Middleware05/compress/minResponseBodyBytes` | `42` |
 | `traefik/http/middlewares/Middleware06/contentType/autoDetect` | `true` |
 | `traefik/http/middlewares/Middleware07/digestAuth/headerField` | `foobar` |
 | `traefik/http/middlewares/Middleware07/digestAuth/realm` | `foobar` |

docs/content/reference/dynamic-configuration/marathon-labels.json

@@ -13,6 +13,7 @@
 "traefik.http.middlewares.middleware04.circuitbreaker.expression": "foobar",
 "traefik.http.middlewares.middleware05.compress": "true",
 "traefik.http.middlewares.middleware05.compress.excludedcontenttypes": "foobar, foobar",
+"traefik.http.middlewares.middleware05.compress.minresponsebodybytes": "42",
 "traefik.http.middlewares.middleware06.contenttype.autodetect": "true",
 "traefik.http.middlewares.middleware07.digestauth.headerfield": "foobar",
 "traefik.http.middlewares.middleware07.digestauth.realm": "foobar",

docs/content/reference/dynamic-configuration/traefik.containo.us_middlewares.yaml

@@ -101,6 +101,8 @@ spec:
                     items:
                       type: string
                     type: array
+                  minResponseBodyBytes:
+                    type: integer
                 type: object
               contentType:
                 description: ContentType middleware - or rather its unique `autoDetect`