static_websites: Allow setting a custom certresolver per website

This patch will allow specifying a specific certresolver for a website and will otherwise choose the default as defined by the respective variable.

roles/static_websites/defaults/main.yml

@@ -21,14 +21,15 @@
 # The install location (where to put the docker-compose.yml)
 static_websites_install_location: /srv/static_websites
 
-# The certresolver to use by traefik for this domain
-static_websites_traefik_certresolver: letsencrypt_http
+# The default certresolver to use by traefik for the domain if none is specified
+static_websites_default_traefik_certresolver: letsencrypt_http
 
 # List of all static websites that should be deployed
 # Available fields:
 #  WEBSITENAME: - The name of the website/entry
 #    image - docker image, can include a tag
 #    domain - domain that is published by traefik
+#    certresolver - specify traefik cert resolver (optional)
 #    hsts: - HSTS advanced settings (optional)
 #      preloaded - enable preloaded header
 #      subdomains - enable all subdomains header

roles/static_websites/templates/docker-compose.yml

@@ -42,7 +42,7 @@ services:
       - "traefik.http.routers.static_websites_{{ key }}.rule=Host(`{{ value.domain }}`) && PathPrefix(`/`)"
       - "traefik.http.routers.static_websites_{{ key }}.entrypoints=websecure"
       - "traefik.http.routers.static_websites_{{ key }}.tls=true"
-      - "traefik.http.routers.static_websites_{{ key }}.tls.certresolver={{ static_websites_traefik_certresolver }}"
+      - "traefik.http.routers.static_websites_{{ key }}.tls.certresolver={{ value.certresolver | default(static_websites_default_traefik_certresolver) }}"
       - "traefik.http.routers.static_websites_{{ key }}.middlewares=static_websites_{{ key }},compress"
       - "traefik.http.middlewares.static_websites_{{ key }}.headers.sslredirect=true"
       - "traefik.http.middlewares.static_websites_{{ key }}.headers.stsSeconds=63072000"