Customers can view and cancel their booking through a link in the e-mail. Fixes #18

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

deploy/.env.example

@@ -6,6 +6,10 @@ REZERVATOR_PREFIX=rezervator
 # Image the customer containers are started from
 REZERVATOR_IMAGE=rezervator:latest
 
+# Time zone of the customers. Bookings are made in local time, and the application compares
+# them with its clock (today's date, the deadline for cancelling a booking).
+REZERVATOR_TZ=Europe/Prague
+
 # Reverse proxy in front of the customer containers:
 #   traefik  runs as a container of this stack, routes by domain, can issue certificates itself
 #   nginx    the nginx already installed on this host. Every customer container listens on

deploy/README.md

@@ -144,6 +144,10 @@ This creates the database and its role, writes `customers/alpha/config.toml` wit
 
 An optional third argument sets the sender address of e-mails (default `noreply@<domain>`).
 
+The config gets `public_url = 'https://<domain>'`, the address used for links in e-mails (the page where a customer can view and cancel a booking). Customers created before this setting existed have no `public_url`; their links use the address of the request, which is fine behind Traefik or an nginx server block of the domain. Add the line to `customers/<name>/config.toml` and run `upgrade <name>` if you want it explicit.
+
+Containers run in the time zone set by `REZERVATOR_TZ` in `.env` (default `Europe/Prague`). It takes effect when a container is created, that is on `add`, `upgrade` and `restore`.
+
 `./rezervator.sh list` shows all customers, their ports and the state of their containers.
 
 ## Upgrading

deploy/config.template.toml

@@ -8,6 +8,8 @@ key = '@SESSION_KEY@'
 [network]
 bind_ip = '0.0.0.0'
 port = 3000
+# Address for links in e-mails (the page where a customer can view and cancel a booking)
+public_url = 'https://@DOMAIN@'
 
 [database]
 user = '@DB_USER@'

deploy/rezervator.sh

@@ -64,6 +64,7 @@ load_env() {
     NETWORK="$PREFIX"
     CUSTOMER_MAX_CONNECTIONS="${CUSTOMER_MAX_CONNECTIONS:-5}"
     BASE_PORT="${BASE_PORT:-3100}"
+    TIME_ZONE="${REZERVATOR_TZ:-Europe/Prague}"
 
     case "$PROXY" in traefik|nginx) ;; *) die "REZERVATOR_PROXY must be traefik or nginx" ;; esac
     case "$POSTGRES" in container|host) ;; *) die "REZERVATOR_POSTGRES must be container or host" ;; esac
@@ -230,6 +231,8 @@ run_container() {
         --network "$NETWORK"
         --volume "$CUSTOMERS_DIR/$name/config.toml:/app/config/config.toml:ro"
         --volume "$(volume_name "$name"):/app/data"
+        # Times of bookings are local times; the deadline for cancelling is compared with the clock
+        --env "TZ=$TIME_ZONE"
         --label "rezervator.stack=$PREFIX"
         --label "rezervator.customer=$name"
         --label "rezervator.domain=$domain"
@@ -392,6 +395,7 @@ SQL
         -e "s|@DB_PORT@|$PG_PORT|" \
         -e "s|@MAX_CONNECTIONS@|$CUSTOMER_MAX_CONNECTIONS|" \
         -e "s|@MAIL_FROM@|$mail_from|" \
+        -e "s|@DOMAIN@|$domain|" \
         "$DEPLOY_DIR/config.template.toml" > "$dir/config.toml"
     # The directory is closed to other users; the application in the container must be able to read the file
     chmod 644 "$dir/config.toml"