allow specification of additional domains with https support (#164)

README.md

@@ -117,6 +117,7 @@ You can read [the article](https://medium.com/@BtcpayServer/hosting-btcpay-serve
 `btcpay-setup.sh` will use the following environment variables:
 
 * `BTCPAY_HOST`: The hostname of your website (eg. `btcpay.example.com`)
+* `BTCPAY_ADDITIONAL_HOSTS`: Optional, specify additional domains to your BTCPayServer with https support if enabled. (eg. example2.com,example3.com)
 * `REVERSEPROXY_HTTP_PORT`: The public port the reverse proxy binds to for HTTP traffic (default: 80)
 * `REVERSEPROXY_HTTPS_PORT`: The public port the reverse proxy binds to for HTTPS traffic (default: 443)
 * `REVERSEPROXY_DEFAULT_HOST`: Optional, if using a reverse proxy nginx, specify which website should be presented if the server is accessed by its IP.

btcpay-setup.sh

@@ -97,6 +97,7 @@ Environment variables:
     BTCPAYGEN_DOCKER_IMAGE: Allows you to specify a custom docker image for the generator (Default: btcpayserver/docker-compose-generator)
     BTCPAY_IMAGE: Allows you to specify the btcpayserver docker image to use over the default version. (Default: current stable version of btcpayserver)
     BTCPAY_PROTOCOL: Allows you to specify the external transport protocol of BTCPayServer. (Default: https)
+    BTCPAY_ADDITIONAL_HOSTS: Allows you to specify additional domains to your BTCPayServer with https support if enabled. (eg. example2.com,example3.com)
 Add-on specific variables:
     LIBREPATRON_HOST: If libre patron is activated with opt-add-librepatron, the hostname of your libre patron website (eg. librepatron.example.com)
     WOOCOMMERCE_HOST: If woocommerce is activated with opt-add-woocommerce, the hostname of your woocommerce website (eg. store.example.com)
@@ -142,7 +143,7 @@ while (( "$#" )); do
   esac
 done
 
-# If start does not have a value, stophere
+# If start does not have a value, stop here
 if ! [[ "$START" ]]; then
     display_help
     return
@@ -160,6 +161,10 @@ if [[ -z "$BTCPAYGEN_CRYPTO1" ]]; then
     fi
 fi
 
+if [ ! -z "$BTCPAY_ADDITIONAL_HOSTS" ] && [[ "$BTCPAY_ADDITIONAL_HOSTS" == *[';']* ]]; then 
+    echo "$BTCPAY_ADDITIONAL_HOSTS should be separated by a , not ;"
+    return;
+fi
 ######### Migration: old pregen environment to new environment ############
 if [[ ! -z $BTCPAY_DOCKER_COMPOSE ]] && [[ ! -z $DOWNLOAD_ROOT ]] && [[ -z $BTCPAYGEN_OLD_PREGEN ]]; then
     echo "Your deployment is too old, you need to migrate by following instructions on this link https://github.com/btcpayserver/btcpayserver-docker/tree/master#i-deployed-before-btcpay-setupsh-existed-before-may-17-can-i-migrate-to-this-new-system"
@@ -178,6 +183,7 @@ fi
 : "${REVERSEPROXY_DEFAULT_HOST:=none}"
 : "${ACME_CA_URI:=https://acme-v01.api.letsencrypt.org/directory}"
 : "${BTCPAY_PROTOCOL:=https}"
+: "${BTCPAY_ADDITIONAL_HOSTS:=}"
 : "${REVERSEPROXY_HTTP_PORT:=80}"
 : "${REVERSEPROXY_HTTPS_PORT:=443}"
 
@@ -229,6 +235,7 @@ echo "
 Parameters passed:
 BTCPAY_PROTOCOL:$BTCPAY_PROTOCOL
 BTCPAY_HOST:$BTCPAY_HOST
+BTCPAY_ADDITIONAL_HOSTS:$BTCPAY_ADDITIONAL_HOSTS
 REVERSEPROXY_HTTP_PORT:$REVERSEPROXY_HTTP_PORT
 REVERSEPROXY_HTTPS_PORT:$REVERSEPROXY_HTTPS_PORT
 REVERSEPROXY_DEFAULT_HOST:$REVERSEPROXY_DEFAULT_HOST

docker-compose-generator/docker-fragments/btcpayserver-nginx.yml

@@ -7,10 +7,10 @@ services:
       # NGINX settings
       VIRTUAL_NETWORK: nginx-proxy
       VIRTUAL_PORT: 49392
-      VIRTUAL_HOST: ${BTCPAY_HOST}
+      VIRTUAL_HOST: ${BTCPAY_HOST},${BTCPAY_ADDITIONAL_HOSTS}
       VIRTUAL_HOST_NAME: "btcpay"
       SSL_POLICY: Mozilla-Modern 
 
       # Let's encrypt settings
-      LETSENCRYPT_HOST: ${BTCPAY_HOST}
+      LETSENCRYPT_HOST: ${BTCPAY_HOST},${BTCPAY_ADDITIONAL_HOSTS}
       LETSENCRYPT_EMAIL: ${LETSENCRYPT_EMAIL:-<no value>}

docker-compose-generator/docker-fragments/nginx.yml

@@ -15,7 +15,7 @@ services:
       - "nginx_certs:/etc/nginx/certs:ro"
   nginx-gen:
     restart: unless-stopped
-    image: btcpayserver/docker-gen:0.7.5
+    image: btcpayserver/docker-gen:0.7.6
     container_name: nginx-gen
     environment:
       DEFAULT_HOST: ${REVERSEPROXY_DEFAULT_HOST:-none}

helpers.sh

@@ -70,6 +70,7 @@ touch $BTCPAY_ENV_FILE
 echo "
 BTCPAY_PROTOCOL=$BTCPAY_PROTOCOL
 BTCPAY_HOST=$BTCPAY_HOST
+BTCPAY_ADDITIONAL_HOSTS=$BTCPAY_ADDITIONAL_HOSTS
 BTCPAY_ANNOUNCEABLE_HOST=$BTCPAY_ANNOUNCEABLE_HOST
 REVERSEPROXY_HTTP_PORT=$REVERSEPROXY_HTTP_PORT
 REVERSEPROXY_HTTPS_PORT=$REVERSEPROXY_HTTPS_PORT