feat: docker entrypoint takes env variables for config

Author: nampereira

Dockerfile

@@ -2,14 +2,12 @@ FROM python:3
 
 WORKDIR /usr/src/app
 
-COPY requirements.txt ./
+COPY . .
+
 RUN pip install --no-cache-dir -r requirements.txt
-RUN git clone https://github.com/SilverLineFramework/libsilverline.git
-COPY libsilverline/requirements.txt ./
+WORKDIR /usr/src/app/libsilverline
 RUN pip install --no-cache-dir -r requirements.txt
 
-COPY . .
-
 WORKDIR /usr/src/app
 
 RUN chmod +x wait-for-it.sh

docker-entrypoint.sh

@@ -1,4 +1,23 @@
 #!/bin/bash
 
-make migrate
-python manage.py runserver 0.0.0.0:8000
+config_file=${RTCONF_CONF_FILE:-config.json}
+echo "Config file: "$config_file
+pwd_file=$(grep '"pwd"' $config_file | cut -d'"' -f 4)
+echo "Pwd file   : "$pwd_file
+
+if [[ ! -z "${RTCONF_PWD_FILE_CONTENTS}" ]]; then
+  echo "Creating mqtt_pwd.txt from env."
+  echo ${RTCONF_PWD_FILE_CONTENTS} > $pwd_file
+fi
+
+for key in $(tail -n +2 config.json | head -n -1 | cut -d':' -f1 | sed 's/\"//g')
+do
+  conf_key=RTCONF_`echo $key | tr '[:lower:]' '[:upper:]'`
+  if [[ ! -z "${!conf_key}" ]]; then
+    echo  "Replacing conf: "${conf_key}:${!conf_key}
+    sed -i "s/\"$key\"\:.*/\"$key\"\:${!conf_key},/" $config_file
+  fi 
+done 
+
+#make migrate
+#python manage.py runserver 0.0.0.0:8000