Add end-to-end Test

- Add an infrastructur to run local e2e tests.
- Add some tests.

docker/MTAContainerFile

@@ -57,27 +57,6 @@ RUN apt-get update -yqq && \
   openssl \
   sq
 
-RUN adduser --shell /bin/bash --disabled-password --gecos "" user && \
-  mkdir -p /home/user/ && \
-  usermod -a -G sudo user && \
-  chown -R user:user /home/user
-
-RUN adduser --shell /bin/bash --disabled-password --gecos "" alice && \
-  mkdir -p /home/alice/ && \
-  chown -R alice:alice /home/alice
-
-RUN adduser --shell /bin/bash --disabled-password --gecos "" bob && \
-  mkdir -p /home/bob/ && \
-  chown -R bob:bob /home/bob
-
-RUN adduser --shell /bin/bash --disabled-password --gecos "" carol && \
-  mkdir -p /home/carol/ && \
-  chown -R carol:carol /home/carol
-
-RUN adduser --shell /bin/bash --disabled-password --gecos "" dave && \
-  mkdir -p /home/dave/ && \
-  chown -R dave:dave /home/dave
-
 RUN adduser --shell /bin/bash --disabled-password --gecos "" hockeypuck
 
 COPY mta_provision/ /

docker/README.md

@@ -26,6 +26,6 @@ The mapped binary will be started, alongside `postfix` and `hockeypuck`.
 
 ```
 $ docker run -ti --rm \
-  --mount type=bind,src=$(pwd)/target/release,dst=/opt/husk/mapped/
+  --mount type=bind,src=$(pwd),dst=/opt/husk/mapped/
   localhost/mta bash -c "/usr/bin/prepare.sh && bash -i"
 ```

docker/mta_provision/usr/bin/prepare.sh

@@ -7,8 +7,8 @@ echo "127.0.0.1 " $(hostname) > /etc/hosts
 echo "127.0.0.2 example.com" >> /etc/hosts
 
 ## build milter
-if [ -f /opt/husk/mapped/husk ] ; then
-  HUSK_BIN=/opt/husk/mapped/husk
+if [ -f /opt/husk/mapped/Cargo.toml ] ; then
+  HUSK_BIN=/opt/husk/mapped/target/release/husk
 else 
   cd /opt/husk
   git clone https://gitlab.com/husk-project/husk-milter.git