feat(containers): set mqtt bind address to make broker accessible fro…

…m containers

layers/containers.toml

@@ -4,10 +4,15 @@ parent = "tedge-rugpi-core/tedge"
 recipes = [
     "tedge-rugpi-core/defaults",
     "tedge-rugpi-core/docker",
+    "tedge-config",
 ]
 
 [parameters."core/apt-cleanup"]
 autoremove = true
 
 [parameters."core/rugpi-ctrl"]
 rugpi_admin = true  # Enable Rugpi Admin.
+
+[parameters."tedge-config"]
+# Allow containers to reach the MQTT broker on the host
+mqtt_bind_address = "0.0.0.0"

recipes/tedge-config/recipe.toml

@@ -0,0 +1,6 @@
+description = "thin-edge.io custom configuration"
+priority = 10_000
+dependencies = ["tedge-rugpi-core/defaults"]
+
+[parameters]
+mqtt_bind_address = { default = "" }

recipes/tedge-config/steps/00-install.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+set -e
+
+if [ -n "$RECIPE_PARAM_MQTT_BIND_ADDRESS" ]; then
+    echo "Setting mqtt.bind.address to $RECIPE_PARAM_MQTT_BIND_ADDRESS" >&2
+    tedge config set mqtt.bind.address "$RECIPE_PARAM_MQTT_BIND_ADDRESS"
+fi