Fix bug 1709 - Adding non-root user to run Keystone

Change-Id: I2a9dadb36039fa3b2e61c8c055a4f86e5c3fd172
Signed-off-by: sousaedu <eduardo.sousa@canonical.com>
(cherry picked from commit 9d1d0c13292004487f57c7fd1ed8fb23d604725a)
diff --git a/docker/Keystone/Dockerfile b/docker/Keystone/Dockerfile
index e81a7b5..95738fd 100644
--- a/docker/Keystone/Dockerfile
+++ b/docker/Keystone/Dockerfile
@@ -20,9 +20,9 @@
 
 EXPOSE 5000
 
-WORKDIR /keystone
+WORKDIR /app
 
-COPY scripts/start.sh /keystone/start.sh
+COPY scripts/start.sh /app/start.sh
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get update && \
     DEBIAN_FRONTEND=noninteractive apt-get upgrade -y && \
@@ -56,6 +56,31 @@
 RUN pip3 install -U pip==21.3.1 && \
     pip3 install python-ldap==3.2.0 ldappool==3.0.0 python-openstackclient==5.7.0
 
+# Creating the user for the app
+RUN groupadd -g 1000 appuser && \
+    useradd -u 1000 -g 1000 -d /app appuser && \
+    usermod -a -G keystone appuser && \
+    usermod -a -G adm appuser && \
+    chown -R appuser:appuser /app && \
+    chown root:keystone /etc/keystone && \
+    chmod 770 /etc/keystone && \
+    chown root:keystone /etc/ssl/certs && \
+    chmod 770 /etc/ssl/certs && \
+    chown root:keystone /etc/apache2/apache2.conf && \
+    chmod 664 /etc/apache2/apache2.conf && \
+    sed -i 's/Listen 80/Listen 8080/g' /etc/apache2/ports.conf && \
+    chown root:keystone /var/spool && \
+    chmod 775 /var/spool && \
+    chmod 770 /var/log/apache2 && \
+    chmod 660 /var/log/apache2/* && \
+    chmod 770 /var/log/keystone && \
+    chown root:keystone /var/run/apache2 && \
+    chmod 775 /var/run/apache2 && \
+    mkdir -p /etc/sudoers.d && \
+    echo "%appuser ALL= NOPASSWD: /sbin/service apache2 *" > /etc/sudoers.d/appuser
+
+USER appuser
+
 # database
 ENV DB_HOST                 keystone-db
 ENV DB_PORT                 3306