Avoid creating new admin user

Utilize the existing admin user created by init steps and start the
run_tests container with that user.

Change-Id: Ie85637846a6f1b650907089480749bf1bd9086e6

test/docker/run.sh

diff --git a/test/docker/run.sh b/test/docker/run.sh
index 75b9b3a..5f9b412 100755
--- a/test/docker/run.sh
+++ b/test/docker/run.sh
@@ -57,12 +57,12 @@
 
 run_task_plugin_tests() {
     docker-compose "${COMPOSE_ARGS[@]}" up --detach
-    docker-compose "${COMPOSE_ARGS[@]}" exec -T --user=gerrit_admin run_tests \
+    docker-compose "${COMPOSE_ARGS[@]}" exec -T --user=admin run_tests \
         '/task/test/docker/run_tests/start.sh'
 }
 
 retest() {
-    docker-compose "${COMPOSE_ARGS[@]}" exec -T --user=gerrit_admin \
+    docker-compose "${COMPOSE_ARGS[@]}" exec -T --user=admin \
         run_tests task/test/docker/run_tests/start.sh retest
     RESULT=$?
     cleanup

test/docker/run_tests/Dockerfile

diff --git a/test/docker/run_tests/Dockerfile b/test/docker/run_tests/Dockerfile
index 06691e1..58eb6c8 100755
--- a/test/docker/run_tests/Dockerfile
+++ b/test/docker/run_tests/Dockerfile
@@ -2,7 +2,7 @@
 
 ARG UID=1000
 ARG GID=1000
-ENV USER gerrit_admin
+ENV USER admin
 ENV USER_HOME /home/$USER
 ENV RUN_TESTS_DIR task/test/docker/run_tests
 ENV WORKSPACE $USER_HOME/workspace
@@ -21,6 +21,6 @@
 RUN chmod 400 "$USER_HOME"/.ssh/id_rsa
 RUN chmod 400 "$USER_HOME"/.ssh/id_rsa.pub
 RUN git config --global user.name "Gerrit Admin"
-RUN git config --global user.email "gerrit_admin@localdomain"
+RUN git config --global user.email "admin@example.com"
 
 ENTRYPOINT ["tail", "-f", "/dev/null"]

test/docker/run_tests/start.sh

diff --git a/test/docker/run_tests/start.sh b/test/docker/run_tests/start.sh
index 1d31d0b..2cc3df2 100755
--- a/test/docker/run_tests/start.sh
+++ b/test/docker/run_tests/start.sh
@@ -19,8 +19,8 @@
 echo "Creating a default user account ..."
 
 cat "$USER_HOME"/.ssh/id_rsa.pub | ssh -p 29418 -i /server-ssh-key/ssh_host_rsa_key \
-  "Gerrit Code Review@$GERRIT_HOST" suexec --as "admin@example.com" -- gerrit create-account \
-     --ssh-key - --email "gerrit_admin@localdomain"  --group "Administrators" "gerrit_admin"
+    "Gerrit Code Review@$GERRIT_HOST" suexec --as "admin@example.com" -- gerrit set-account \
+    admin --add-ssh-key -
 
 is_plugin_loaded "task" || die "Task plugin is not installed"