Add credential keys setup

Same as "keystone_mamage credential_setup"

Change-Id: I8bf71402905c2c0de72a002cffa5ca6eef3609e6

docker/keystone/Dockerfile.j2

@@ -14,13 +14,13 @@ RUN apt-get install -y --no-install-recommends \
 
 RUN useradd --user-group keystone \
     && /var/lib/microservices/venv/bin/pip install --upgrade /keystone \
-    && mkdir -p /etc/keystone/fernet-keys /var/www/cgi-bin/keystone /var/log/apache2 /home/keystone \
+    && mkdir -p /etc/keystone/fernet-keys /etc/keystone/credential-keys /var/www/cgi-bin/keystone /var/log/apache2 /home/keystone \
     && cp -r /keystone/etc/* /etc/keystone/ \
     && cp /var/lib/microservices/venv/bin/keystone-wsgi-admin /var/www/cgi-bin/keystone/admin \
     && cp /var/lib/microservices/venv/bin/keystone-wsgi-public /var/www/cgi-bin/keystone/public \
     && touch /etc/keystone/fernet-keys/.placeholder \
     && chown -R keystone: /etc/keystone /var/www/cgi-bin/keystone /var/log/apache2 /home/keystone \
-    && chmod -R 500 /etc/keystone/fernet-keys
+    && chmod -R 500 /etc/keystone/fernet-keys /etc/keystone/credential-keys
 
 COPY daemon.sh /usr/local/bin/daemon.sh
 COPY keystone_sudoers /etc/sudoers.d/keystone_sudoers

service/files/credential-key.j2

@@ -0,0 +1 @@
+{{ keystone.credential_key }}

service/files/defaults.yaml

@@ -19,6 +19,7 @@ configs:
 
     # 100% random default
     fernet_key: "ZAabsQIXsSW7Ez52UZRqUXDz87y9+R+mbxVZ38gRmjg="
+    credential_key: "2jjLrgOLvI-wj7g-8058SSCw0-ZnL4Ghg5cLuBirxL8="
 
   openstack:
     user_password: password

service/keystone.yaml

@@ -48,7 +48,6 @@ service:
                    --bootstrap-admin-url http://{{ address('keystone') }}:{{ keystone.admin_port.cont }}
                    --bootstrap-public-url {{ address('keystone', keystone.public_port, external=True, with_scheme=True) }}
                    --bootstrap-internal-url http://{{ address('keystone') }}:{{ keystone.public_port.cont }}
-
       daemon:
         dependencies:
           - memcached
@@ -56,6 +55,7 @@ service:
           - keystone-conf
           - wsgi-keystone-conf
           - fernet-key
+          - credential-key
         command: daemon.sh
       post:
         - name: keystone-create-project
@@ -72,3 +72,8 @@ files:
   fernet-key:
     path: /etc/keystone/fernet-keys/1
     content: fernet-key.j2
+  credential-key:
+    path: /etc/keystone/credential-keys/1
+    content: credential-key.j2
+    perm: "0600"
+    user: keystone