[update] update Dockerfile

- mojor update of Dockerfile
- reverted location of simulate_fail.json file for simulating errors, e.g. to test sending e-mails

Dockerfile

@@ -1,11 +1,38 @@
 FROM python:3
 
-WORKDIR /usr/src/app
+# metadata
+LABEL maintainer="Kasper D. Fischer <kasper.fischer@rub.de>"
+LABEL version="0.2-docker"
+LABEL description="Docker image for the survBot application"
 
-COPY requirements.txt ./
+# install required system packages
-RUN pip install --no-cache-dir -r requirements.txt
 RUN apt update && apt install -y bind9-host iputils-ping
 
-COPY . .
+# create user and group
+RUN groupadd -r survBot && useradd -r -g survBot survBot
 
+# change working directory
+WORKDIR /usr/src/app
+
+# install required python packages
+RUN --mount=type=bind,source=requirements.txt,target=/tmp/requirements.txt \
+    pip install --no-cache-dir --requirement /tmp/requirements.txt
+
+# switch to user survBot
+USER survBot
+
+# copy application files
+COPY survBot.py utils.py write_utils.py LICENSE README.md ./
+
+# copy configuration files
+VOLUME /usr/src/app/conf
+COPY parameters.yaml mailing_list.yaml simulate_fail.json conf/
+RUN ln -s conf/simulate_fail.json simulate_fail.json
+
+# copy www files
+VOLUME /usr/src/app/www
+COPY logo.png stylesheets/desktop.css stylesheets/mobile.css www/
+RUN ln -s www/index.html survBot_out.html
+
+# run the application
 CMD [ "python", "./survBot.py", "-html", "www", "-parfile", "conf/parameters.yaml" ]

survBot.py

@@ -704,7 +704,7 @@ class StationQC(object):
             return 'active'
         return False
 
-    def _simulated_error_check(self, key, fname='conf/simulate_fail.json'):
+    def _simulated_error_check(self, key, fname='simulate_fail.json'):
         if not os.path.isfile(fname):
             return
         with open(fname) as fid: