Add HTTP Provider

* feat: add HTTP provider implementation

* refactor: add SetDefaults and struct tag for the new file parser

* feat: add TLS configuration property

* refactor: rework HTTP provider implementation

* feat: provide config only once if fetched config is unchanged

* style: lint

* ui: add HTTP provider icon

* tests: simplify and fix integration test

* docs: add reference config for file

* docs: move http reference config for file

Co-authored-by: Daniel Tomcej <daniel.tomcej@gmail.com>

docs/content/reference/static-configuration/cli-ref.md

@@ -486,6 +486,33 @@ Load dynamic configuration from a file.
 `--providers.file.watch`:  
 Watch provider. (Default: ```true```)
 
+`--providers.http`:  
+Enable HTTP backend with default settings. (Default: ```false```)
+
+`--providers.http.endpoint`:  
+Load configuration from this endpoint.
+
+`--providers.http.pollinterval`:  
+Polling interval for endpoint. (Default: ```5```)
+
+`--providers.http.polltimeout`:  
+Polling timeout for endpoint. (Default: ```5```)
+
+`--providers.http.tls.ca`:  
+TLS CA
+
+`--providers.http.tls.caoptional`:  
+TLS CA.Optional (Default: ```false```)
+
+`--providers.http.tls.cert`:  
+TLS cert
+
+`--providers.http.tls.insecureskipverify`:  
+TLS insecure skip verify (Default: ```false```)
+
+`--providers.http.tls.key`:  
+TLS key
+
 `--providers.kubernetescrd`:  
 Enable Kubernetes backend with default settings. (Default: ```false```)
 

docs/content/reference/static-configuration/env-ref.md

@@ -486,6 +486,33 @@ Load dynamic configuration from a file.
 `TRAEFIK_PROVIDERS_FILE_WATCH`:  
 Watch provider. (Default: ```true```)
 
+`TRAEFIK_PROVIDERS_HTTP`:  
+Enable HTTP backend with default settings. (Default: ```false```)
+
+`TRAEFIK_PROVIDERS_HTTP_ENDPOINT`:  
+Load configuration from this endpoint.
+
+`TRAEFIK_PROVIDERS_HTTP_POLLINTERVAL`:  
+Polling interval for endpoint. (Default: ```5```)
+
+`TRAEFIK_PROVIDERS_HTTP_POLLTIMEOUT`:  
+Polling timeout for endpoint. (Default: ```5```)
+
+`TRAEFIK_PROVIDERS_HTTP_TLS_CA`:  
+TLS CA
+
+`TRAEFIK_PROVIDERS_HTTP_TLS_CAOPTIONAL`:  
+TLS CA.Optional (Default: ```false```)
+
+`TRAEFIK_PROVIDERS_HTTP_TLS_CERT`:  
+TLS cert
+
+`TRAEFIK_PROVIDERS_HTTP_TLS_INSECURESKIPVERIFY`:  
+TLS insecure skip verify (Default: ```false```)
+
+`TRAEFIK_PROVIDERS_HTTP_TLS_KEY`:  
+TLS key
+
 `TRAEFIK_PROVIDERS_KUBERNETESCRD`:  
 Enable Kubernetes backend with default settings. (Default: ```false```)
 

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

@@ -205,6 +205,16 @@
       cert = "foobar"
       key = "foobar"
       insecureSkipVerify = true
+  [providers.http]
+    endpoint = "foobar"
+    pollInterval = 42
+    pollTimeout = 42
+    [providers.http.tls]
+      ca = "foobar"
+      caOptional = true
+      cert = "foobar"
+      key = "foobar"
+      insecureSkipVerify = true
 
 [api]
   insecure = true

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

@@ -225,6 +225,16 @@ providers:
       cert: foobar
       key: foobar
       insecureSkipVerify: true
+  http:
+    endpoint: foobar
+    pollInterval: 42
+    pollTimeout: 42
+    tls:
+      ca: foobar
+      caOptional: true
+      cert: foobar
+      key: foobar
+      insecureSkipVerify: true
 api:
   insecure: true
   dashboard: true