add certificate to all routes with same domainname

fixes #14

libexec/get_certificate

@@ -6,18 +6,13 @@ set -euo pipefail
 
 DOMAINNAME="$1"
 SELFLINK="$2"
-keyfile_="$(keyfile "$DOMAINNAME")"
 certfile_="$(certfile "$DOMAINNAME")"
-fullchainfile_="$(fullchainfile "$DOMAINNAME")"
 
 pidfile=$LETSENCRYPT_DATADIR/get_certificate.pid
 
 get_old_certificate() {
-    if ! [ -f "$certfile_" ] || ! [ -f "$keyfile_" ] || ! [ -f "$fullchainfile_" ]
-    then
-        get_certs_from_route "$DOMAINNAME" "$SELFLINK"\
-	    || echo "no old certificate found"
-    fi
+    get_certs_from_route "$DOMAINNAME" "$SELFLINK"\
+    || echo "no old certificate found"
 }
 
 check_api_key() {
@@ -65,6 +60,11 @@ setup_well_known_route() {
     return 1
 }
 
+routes_with_domain() {
+    local tmpl='.items[].metadata.selfLink'
+    get_routes "$(domain_selector "$DOMAIN")" | jq -er "$tmpl"
+}
+
 # Try to get lock
 exec 201>"$pidfile"
 flock -x 201
@@ -77,5 +77,7 @@ else
     setup_well_known_route
     trap cleanup_well_known_route EXIT
     get_new_certificate "$DOMAINNAME"
-    add_certificate_to_route "$DOMAINNAME" "$SELFLINK"
+    for selflink_ in $(routes_with_domain); do
+        add_certificate_to_route "$DOMAINNAME" "$selflink_"
+    done
 fi