Use a logfile per user during regression tests

Author: cyrilst

test/centos-image/Dockerfile

@@ -10,9 +10,9 @@ RUN set -ex \
 RUN set -ex \
 	&& useradd centos \
 	&& install -d -m0755 -o centos -g centos /home/centos/.ssh \
-	&& useradd -G centos user1 \
+	&& useradd user1 \
 	&& install -d -m0755 -o user1 -g user1 /home/user1/.ssh \
-	&& useradd -g user1 -G centos user2 \
+	&& useradd -g user1 user2 \
 	&& install -d -m0755 -o user2 -g user1 /home/user2/.ssh
 
 # Copy centos public key to root authorized_keys

test/centos-image/gateway.sh

@@ -27,7 +27,7 @@ yum -y install RPMS/x86_64/sshproxy*.rpm
 cat <<EOF >/etc/sshproxy/sshproxy.yaml
 ---
 debug: true
-log: /tmp/sshproxy.log
+log: /tmp/sshproxy-{user}.log
 
 etcd:
     endpoints: