feat: implement basic rate limiting by ip address

.env.sample

@@ -249,3 +249,12 @@ WRITE_TIMEOUT=0s
 #
 # https://doc.traefik.io/traefik/reference/install-configuration/entrypoints/#opt-forwardedHeaders-trustedIPs
 #TRUSTED_IPS="['10.13.12.1']" # 10.13.12.1 is an example
+
+## Rate limits
+# You can enable universal rate limits by setting RATE_LIMIT_EVERYTHING
+# to true, otherwise each app needs to export their own middleware labels.
+#
+# https://doc.traefik.io/traefik/reference/routing-configuration/http/middlewares/ratelimit/
+#RATE_LIMIT_EVERYTHING=false
+#RATE_LIMIT_AVERAGE=100
+#RATE_LIMIT_BURST=200

abra.sh

@@ -1,4 +1,4 @@
-export TRAEFIK_YML_VERSION=v36
-export FILE_PROVIDER_YML_VERSION=v13
+export TRAEFIK_YML_VERSION=v37
+export FILE_PROVIDER_YML_VERSION=v14
 export ENTRYPOINT_VERSION=v5
 export ANUBIS_YML_VERSION=v1

file-provider.yml.tmpl

@@ -22,6 +22,11 @@ http:
       basicAuth:
         usersFile: "/run/secrets/usersfile"
     {{ end }}
+    ip-rate-limit:
+      rateLimit:
+        average: {{ or (env "RATE_LIMIT_AVERAGE") "100" }}
+        burst: {{ or (env "RATE_LIMIT_BURST") "200" }}
+        period: "1s"
     security:
       headers:
         frameDeny: true
@@ -70,4 +75,4 @@ tls:
   certificates:
     - certFile: /run/secrets/ssl_cert
       keyFile: /run/secrets/ssl_key
-  {{ end }}
+  {{ end }}

traefik.yml.tmpl

@@ -51,6 +51,10 @@ entrypoints:
 {{ if ne (env "TRUSTED_IPS") "" }}
     forwardedHeaders:
       trustedIPs: {{ env "TRUSTED_IPS" }}
+{{ end }}
+{{ if eq (env "RATE_LIMIT_EVERYTHING") "true" }}
+    middlewares:
+      - "ip-rate-limit@file"
 {{ end }}
     transport:
       respondingTimeouts: