persistence included

Dockerfile

@@ -12,13 +12,15 @@ RUN \
   apt update && \
   apt install -y mariadb-client openssl libwebsockets8 && \
   groupadd -r -g $MOSQ_GID $MOSQ_USER && \
-  useradd -m -r -u $MOSQ_UID -g $MOSQ_USER $MOSQ_USER
+  useradd -m -r -u $MOSQ_UID -g $MOSQ_USER $MOSQ_USER && \
+  mkdir -p /opt/data  
 
 
 COPY opt/ /opt
 COPY etc/ /opt/etc
 
 VOLUME /opt/etc
+VOLUME /opt/data
 EXPOSE 1883/tcp
 EXPOSE 8883/tcp
 EXPOSE 9001/tcp

mosquitto-start.sh

@@ -1,9 +1,11 @@
 #!/bin/bash
 
 IMAGE=registry.gitlab.com/wolutator/mosquitto-with-auth:latest
-VOLUME=mosquitto-config
+VOLUME_CONFIG=mosquitto-config
+VOLUME_DATA=mosquitto-data
 
-docker volume inspect $VOLUME > /dev/null || docker volume create $VOLUME
+docker volume inspect $VOLUME_CONFIG > /dev/null || docker volume create $VOLUME_CONFIG
+docker volume inspect $VOLUME_DATA > /dev/null || docker volume create $VOLUME_DATA
 
 docker pull $IMAGE
 
@@ -13,7 +15,8 @@ docker run \
   -p1883:1883 \
   -p8883:8883 \
   -p9001:9001 \
-  -v $VOLUME:/opt/etc/mosquitto \
+  -v $VOLUME_CONFIG:/opt/etc/mosquitto \
+  -v $VOLUME_DATA:/opt/data \
   --link mariadb \
   --name mosquitto \
   $IMAGE

mosquitto.conf-sample

@@ -1,6 +1,7 @@
 log_dest stdout
 
-persistence false
+persistence true
+persistence_location /opt/data/
 
 listener 1883
 protocol mqtt

readme.md

@@ -23,12 +23,15 @@ All logging is send to `stdout`, so it can be inspected using `docker logs -f <m
 
 To start the container a script is provided, which might need to adjusted to the actual environment:
 
+
     #!/bin/bash
 
     IMAGE=registry.gitlab.com/wolutator/mosquitto-with-auth:latest
-    VOLUME=mosquitto-config
+    VOLUME_CONFIG=mosquitto-config
+    VOLUME_DATA=mosquitto-data
 
-    docker volume inspect $VOLUME > /dev/null || docker volume create $VOLUME
+    docker volume inspect $VOLUME_CONFIG > /dev/null || docker volume create $VOLUME_CONFIG
+    docker volume inspect $VOLUME_DATA > /dev/null || docker volume create $VOLUME_DATA
 
     docker pull $IMAGE
 
@@ -38,18 +41,23 @@ To start the container a script is provided, which might need to adjusted to the
         -p1883:1883 \
         -p8883:8883 \
         -p9001:9001 \
-    -v $VOLUME:/opt/etc/mosquitto \
+        -v $VOLUME_CONFIG:/opt/etc/mosquitto \
+        -v $VOLUME_DATA:/opt/data \
         --link mariadb \
         --name mosquitto \
         $IMAGE
 
+
+
 The container expects the main configuration file in the root of the volume named `mosquitto.conf`.
 
 A very simple configuration, only supporting MQTT on port 1883 is:
 
+
     log_dest stdout
 
-    persistence false
+    persistence true
+    persistence_location /opt/data/
 
     listener 1883
     protocol mqtt
@@ -69,6 +77,7 @@ A very simple configuration, only supporting MQTT on port 1883 is:
     auth_opt_mysql_userquery SELECT pw FROM users WHERE username = ?
     auth_opt_mysql_aclquery SELECT topic FROM acls WHERE username = ? AND (rw & ?) != 0
 
+
 The original readme of the mosquitto-go-auth plugin proposes a different acl query. However, that one didn't work for me.
 Maybe the meaning of the access attribute handed over from mosquitto core to the plugin has been changed in between.
 Actually, it appears to me that the meaning of this attribute has to be interpreted bitwise: Bit0 (1) is read access, Bit1 (2) is write access (publish), Bit0 and Bit1 (3) is readwrite access and Bit2 (4) is subscribe access. Write access is obviously and verified be test publish and subscribe access is also obviously subscribe. Currently I don't know what is meant be read access. For this reason I'm using a bitwise operation in the acl query. I set the rw column for those users who should have read-only access to 5 (1&4), for users who should only publish to 2 and for those ones who should read and write to 7 (1&2&4).