Add a per setup unique machine-id (#257)

* add mount for machine-id
* services should check the availability of the machine id before starting
* add a note to the readme
* add new mounts to the multiserver example
* add dockerize to kweb
* fix meet demo

web/Dockerfile

@@ -22,6 +22,11 @@ ENV KWEBD_DNS_KDAV="kopano_kdav"
 ENV KWEBD_DNS_GRAPI="kopano_grapi"
 ENV KWEBD_DNS_ICAL="kopano_ical"
 
+ENV DOCKERIZE_VERSION v0.6.1
+RUN wget https://github.com/jwilder/dockerize/releases/download/$DOCKERIZE_VERSION/dockerize-alpine-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
+    && tar -C /usr/local/bin -xzvf dockerize-alpine-linux-amd64-$DOCKERIZE_VERSION.tar.gz \
+    && rm dockerize-alpine-linux-amd64-$DOCKERIZE_VERSION.tar.gz
+
 COPY wrapper.sh /usr/local/bin
 COPY kweb.cfg /etc/kweb.cfg
 

web/wrapper.sh

@@ -2,4 +2,9 @@
 
 set -e
 
+# services need to be aware of the machine-id
+dockerize \
+	-wait file:///etc/machine-id \
+	-wait file:///var/lib/dbus/machine-id
+
 exec kwebd caddy -conf /etc/kweb.cfg -agree