diff --git a/roles/sso/tasks/main.yml b/roles/sso/tasks/main.yml
index 4e3efb3..01613b5 100644
--- a/roles/sso/tasks/main.yml
+++ b/roles/sso/tasks/main.yml
@@ -118,3 +118,6 @@
     tags: status
 
   - include: post-install.yml
+    vars:
+      sso_route_name: "{{ route.stdout }}"
+    tags: post-install
diff --git a/roles/sso/tasks/post-install.yml b/roles/sso/tasks/post-install.yml
index 3052fc5..0d66739 100644
--- a/roles/sso/tasks/post-install.yml
+++ b/roles/sso/tasks/post-install.yml
@@ -1,6 +1,43 @@
 ---
+  
+  # TODO : URLENCODE
+  - name: Authenticate to RH-SSO using the service account
+    command: curl --insecure --silent --data "grant_type=password&client_id={{ sso_default_client_id }}&username={{ sso_service_username }}&password={{ sso_service_password }}" https://{{ sso_route_name }}/auth/realms/{{ sso_realm }}/protocol/openid-connect/token
+    register: response
+    changed_when: false
 
-# TODO Steps :
-# - register a client
-# - use that client to authenticate (openid connect password flow)
-# - use the REST APIs to administer RH-SSO
+  - name: Extract the access_token
+    set_fact:
+      access_token: '{{ response.stdout |from_json |json_query("access_token") }}'
+
+  - debug: msg="access_token = {{ access_token }}"
+
+  - name: Create an Initial Access Token in RH-SSO
+    command: 'curl --silent --insecure -H "Authorization: Bearer {{ access_token }}" -X POST --data ''{{ sso_initial_access_token_request |to_json }}'' -H ''Content-Type: application/json'' https://{{ sso_route_name }}/auth/admin/realms/{{ sso_realm }}/clients-initial-access'
+    register: response
+
+  - name: Extract the Initial Access Token from the RH-SSO response
+    set_fact:
+      initial_access_token: '{{ response.stdout |from_json |json_query("token") }}'
+
+  - debug: msg="initial_access_token = {{ initial_access_token }}"
+
+  - name: Get the current Realm configuration
+    command: 'curl --insecure --silent -H "Authorization: Bearer {{ access_token }}" https://{{ sso_route_name }}/auth/admin/realms/{{ sso_realm }}'
+    register: response
+
+  - name: Change the Realm configuration to extend the token lifetimes (see variable sso_default_realm_settings)
+    set_fact:
+      realm_config: '{{ response.stdout |from_json |combine(sso_default_realm_settings) }}'
+
+  - name: Update the Realm configuration
+    command: 'curl --insecure --silent -o /dev/null -w "%{http_code}" -H "Authorization: Bearer {{ access_token }}" -X PUT -d ''{{ realm_config|to_json }}'' -H "Content-Type: application/json" https://{{ sso_route_name }}/auth/admin/realms/{{ sso_realm }}'
+    register: response
+    failed_when: response.stdout != "204"
+
+  # TODO : check why the password don't work
+  - name: Create the Demo User
+    command: 'curl --insecure --silent -o /dev/null -w "%{http_code}" -H "Authorization: Bearer {{ access_token }}" -X POST -d ''{{ sso_demo_user|to_json }}'' -H "Content-Type: application/json" https://{{ sso_route_name }}/auth/admin/realms/{{ sso_realm }}/users'
+    register: response
+    failed_when: response.stdout != "201" and response.stdout != "409" # ie. "Created" or "AlreadyExists"
+    changed_when: response.stdout == "201"
diff --git a/roles/sso/vars/main.yml b/roles/sso/vars/main.yml
index 9dc4c1b..856f9d8 100644
--- a/roles/sso/vars/main.yml
+++ b/roles/sso/vars/main.yml
@@ -17,3 +17,27 @@
   sso_service_username: cli
   sso_retries: 30
   sso_delay: 5
+  sso_default_client_id: admin-cli
+  sso_initial_access_token_request:
+    count: 1000
+    expiration: 31557600 # a year expressed in seconds
+  sso_default_realm_settings:
+    notBefore: 3600 # Allow a clock skew of 1 hour
+    accessTokenLifespan: 86400 # 1 day
+    accessTokenLifespanForImplicitFlow: 86400 # 1 day
+    ssoSessionIdleTimeout: 86400 # 1 day
+    ssoSessionMaxLifespan: 86400 # 1 day
+    accessCodeLifespan: 86400 # 1 day
+    accessCodeLifespanUserAction: 86400 # 1 day
+    accessCodeLifespanLogin: 86400 # 1 day
+    registrationAllowed: true
+    rememberMe: true
+  sso_demo_user:
+    username: jdoe
+    firstName: John
+    lastName: Doe
+    enabled: true
+    credentials:
+      # Currently, password don't work. TODO: investigate why
+      - type: password
+        value: hackthis