Make Keycloak optional

.envrc.sample

@@ -1,5 +1,17 @@
-export DOMAIN=traefik.swarm.autonomic.zone
-export FILE_PROVIDER_YML_VERSION=v1
-export LETS_ENCRYPT_ENV=staging
+export SERVICE=traefik
 export STACK_NAME=traefik
+
+export DOMAIN=traefik.example.com
+export LETS_ENCRYPT_ENV=production
+
+# export DASHBOARD_ENABLED=true
+# WARN, INFO etc.
+export LOG_LEVEL=WARN
+
 export TRAEFIK_YML_VERSION=v1
+
+## Enable Keycloak
+#export COMPOSE_FILE="compose.yml:compose.keycloak.yml"
+#export FILE_PROVIDER_ENABLED=1
+## Options for file-provider / Keycloak SSO
+#export FILE_PROVIDER_YML_VERSION=v1

compose.keycloak.yml

@@ -0,0 +1,18 @@
+---
+version: "3.8"
+
+services:
+  traefik:
+    configs:
+      - source: file_provider_yml
+        target: /etc/traefik/file-provider.yml
+    deploy:
+      labels:
+        - "traefik.http.routers.traefik.middlewares=keycloak@file"
+    environment:
+      - FILE_PROVIDER_ENABLED
+
+configs:
+  file_provider_yml:
+    name: ${STACK_NAME}_file_provider_yml_${FILE_PROVIDER_YML_VERSION}
+    file: file-provider.yml

compose.yml

@@ -15,8 +15,6 @@ services:
     configs:
       - source: traefik_yml
         target: /etc/traefik/traefik.yml
-      - source: file_provider_yml
-        target: /etc/traefik/file-provider.yml
     networks:
       - proxy
     environment:
@@ -39,7 +37,6 @@ services:
         - "traefik.http.routers.traefik.entrypoints=web-secure"
         - "traefik.http.routers.traefik.tls.certresolver=${LETS_ENCRYPT_ENV}"
         - "traefik.http.routers.traefik.service=api@internal"
-        - "traefik.http.routers.traefik.middlewares=keycloak@file"
 
 networks:
   proxy:
@@ -50,9 +47,6 @@ configs:
     name: ${STACK_NAME}_traefik_yml_${TRAEFIK_YML_VERSION}
     file: traefik.yml
     template_driver: golang
-  file_provider_yml:
-    name: ${STACK_NAME}_file_provider_yml_${FILE_PROVIDER_YML_VERSION}
-    file: file-provider.yml
 
 volumes:
   letsencrypt:

traefik.yml

@@ -8,8 +8,10 @@ providers:
     exposedByDefault: false
     network: proxy
     swarmMode: true
+  {{ if eq (env "FILE_PROVIDER_ENABLED") "1" }}
   file:
     filename: /etc/traefik/file-provider.yml
+  {{ end }}
 
 api:
   dashboard: {{ env "DASHBOARD_ENABLED" }}