Fix and add test for /tmp issue (#30 #31).

debian.Dockerfile

@@ -8,11 +8,10 @@ RUN apt-get update && apt-get dist-upgrade -yqq && \
 	mkdir -p /opt/JDownloader/libs && \
 	wget -O /opt/JDownloader/JDownloader.jar --user-agent="https://hub.docker.com/r/plusminus/jdownloader2-headless/" http://installer.jdownloader.org/JDownloader.jar && \
 	java -Djava.awt.headless=true -jar /opt/JDownloader/JDownloader.jar && \
-	mkdir -p /tmp/ && \
+	mkdir -p /tmp/ && chmod 1777 /tmp &&\
 	wget -O /tmp/su-exec.tar.gz https://github.com/ncopa/su-exec/archive/v0.2.tar.gz && \
 	cd /tmp/ && tar -xf su-exec.tar.gz && cd su-exec-0.2 && make && cp su-exec /usr/bin &&\
-	apt-get purge -yqq wget make gcc && apt-get autoremove -yqq && cd / && rm -rf tmp
-
+	apt-get purge -yqq wget make gcc && apt-get autoremove -yqq && cd / && rm -rf /tmp/*
 # Beta sevenzipbindings and entrypoint
 COPY common/* /opt/JDownloader/
 RUN chmod +x /opt/JDownloader/entrypoint.sh

goss.yaml

@@ -14,6 +14,10 @@ file:
     mode: "0664"
     filetype: file
     contains: []
+  /tmp:
+    exists: true
+    mode: "1777"
+    filetype: directory
 package:
   ffmpeg:
     installed: true