diff --git a/cmdb-api/api/commands/click_cmdb.py b/cmdb-api/api/commands/click_cmdb.py
index 8bf2f51..a3049b4 100644
--- a/cmdb-api/api/commands/click_cmdb.py
+++ b/cmdb-api/api/commands/click_cmdb.py
@@ -22,6 +22,8 @@ from api.lib.perm.acl.cache import AppCache
 from api.lib.perm.acl.resource import ResourceCRUD
 from api.lib.perm.acl.resource import ResourceTypeCRUD
 from api.lib.perm.acl.role import RoleCRUD
+from api.lib.perm.acl.user import UserCRUD
+from api.models.acl import App
 from api.models.acl import ResourceType
 from api.models.cmdb import CI
 from api.models.cmdb import CIRelation
@@ -91,7 +93,9 @@ def init_cache():
 @click.command()
 @with_appcontext
 def init_acl():
-    app_id = AppCache.get('cmdb').id
+    _app = AppCache.get('cmdb') or App.create(name='cmdb')
+    app_id = _app.id
+
     # 1. add resource type
     for resource_type in ResourceTypeEnum.all():
         try:
@@ -135,3 +139,59 @@ def init_acl():
                                             RoleEnum.CMDB_READ_ALL,
                                             ResourceTypeEnum.RELATION_VIEW,
                                             [PermEnum.READ])
+
+
+@click.command()
+@click.option(
+    '-u',
+    '--user',
+    help='username'
+)
+@click.option(
+    '-p',
+    '--password',
+    help='password'
+)
+@click.option(
+    '-m',
+    '--mail',
+    help='mail'
+)
+@click.option(
+    '--is_admin',
+    is_flag=True
+)
+@with_appcontext
+def add_user(user, password, mail, is_admin):
+    """
+    create a user
+
+    is_admin: default is False
+
+    Example:  flask add-user -u <username> -p <password> -m <mail>  [--is_admin]
+    """
+    assert user is not None
+    assert password is not None
+    assert mail is not None
+    print((user, password, is_admin))
+    UserCRUD.add(username=user, password=password, email=mail, is_admin=is_admin)
+
+
+@click.command()
+@click.option(
+    '-u',
+    '--user',
+    help='username'
+)
+@with_appcontext
+def del_user(user):
+    """
+    delete a user
+
+    Example:  flask del-user -u <username>
+    """
+    assert user is not None
+    from api.models.acl import User
+
+    u = User.get_by(username=user, first=True, to_dict=False)
+    u and UserCRUD.delete(u.uid)
diff --git a/cmdb-api/api/lib/perm/acl/user.py b/cmdb-api/api/lib/perm/acl/user.py
index 778a852..47ad6b1 100644
--- a/cmdb-api/api/lib/perm/acl/user.py
+++ b/cmdb-api/api/lib/perm/acl/user.py
@@ -38,13 +38,22 @@ class UserCRUD(object):
         existed = User.get_by(username=kwargs['username'], email=kwargs['email'])
         existed and abort(400, "User <{0}> is already existed".format(kwargs['username']))
 
+        is_admin = kwargs.pop('is_admin', False)
         kwargs['nickname'] = kwargs.get('nickname') or kwargs['username']
         kwargs['block'] = 0
         kwargs['key'], kwargs['secret'] = cls._gen_key_secret()
 
         user = User.create(**kwargs)
 
-        RoleCRUD.add_role(user.username, uid=user.uid)
+        role = RoleCRUD.add_role(user.username, uid=user.uid)
+
+        if is_admin:
+            from api.lib.perm.acl.cache import AppCache
+            from api.lib.perm.acl.role import RoleRelationCRUD
+            admin_r = Role.get_by(name='admin', first=True, to_dict=False) or \
+                      RoleCRUD.add_role('admin', AppCache.get('cmdb').id, True)
+
+            RoleRelationCRUD.add(admin_r.id, role.id)
 
         return user
 
@@ -75,11 +84,14 @@ class UserCRUD(object):
 
     @classmethod
     def delete(cls, uid):
-        if uid == g.user.uid:
+        if hasattr(g, 'user') and uid == g.user.uid:
             return abort(400, "You cannot delete yourself")
 
         user = User.get_by(uid=uid, to_dict=False, first=True) or abort(404, "User <{0}> does not exist".format(uid))
 
         UserCache.clean(user)
 
-        user.soft_delete()
+        for i in Role.get_by(uid=uid, to_dict=False):
+            i.delete()
+
+        user.delete()
diff --git a/cmdb-api/migrations/README b/cmdb-api/migrations/README
new file mode 100644
index 0000000..98e4f9c
--- /dev/null
+++ b/cmdb-api/migrations/README
@@ -0,0 +1 @@
+Generic single-database configuration.
\ No newline at end of file
diff --git a/cmdb-api/migrations/alembic.ini b/cmdb-api/migrations/alembic.ini
new file mode 100644
index 0000000..f8ed480
--- /dev/null
+++ b/cmdb-api/migrations/alembic.ini
@@ -0,0 +1,45 @@
+# A generic, single database configuration.
+
+[alembic]
+# template used to generate migration files
+# file_template = %%(rev)s_%%(slug)s
+
+# set to 'true' to run the environment during
+# the 'revision' command, regardless of autogenerate
+# revision_environment = false
+
+
+# Logging configuration
+[loggers]
+keys = root,sqlalchemy,alembic
+
+[handlers]
+keys = console
+
+[formatters]
+keys = generic
+
+[logger_root]
+level = WARN
+handlers = console
+qualname =
+
+[logger_sqlalchemy]
+level = WARN
+handlers =
+qualname = sqlalchemy.engine
+
+[logger_alembic]
+level = INFO
+handlers =
+qualname = alembic
+
+[handler_console]
+class = StreamHandler
+args = (sys.stderr,)
+level = NOTSET
+formatter = generic
+
+[formatter_generic]
+format = %(levelname)-5.5s [%(name)s] %(message)s
+datefmt = %H:%M:%S
diff --git a/cmdb-api/migrations/env.py b/cmdb-api/migrations/env.py
new file mode 100644
index 0000000..79b8174
--- /dev/null
+++ b/cmdb-api/migrations/env.py
@@ -0,0 +1,96 @@
+from __future__ import with_statement
+
+import logging
+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool
+
+from alembic import context
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+fileConfig(config.config_file_name)
+logger = logging.getLogger('alembic.env')
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+from flask import current_app
+config.set_main_option(
+    'sqlalchemy.url', current_app.config.get(
+        'SQLALCHEMY_DATABASE_URI').replace('%', '%%'))
+target_metadata = current_app.extensions['migrate'].db.metadata
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline():
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url, target_metadata=target_metadata, literal_binds=True
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online():
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+
+    # this callback is used to prevent an auto-migration from being generated
+    # when there are no changes to the schema
+    # reference: http://alembic.zzzcomputing.com/en/latest/cookbook.html
+    def process_revision_directives(context, revision, directives):
+        if getattr(config.cmd_opts, 'autogenerate', False):
+            script = directives[0]
+            if script.upgrade_ops.is_empty():
+                directives[:] = []
+                logger.info('No changes in schema detected.')
+
+    connectable = engine_from_config(
+        config.get_section(config.config_ini_section),
+        prefix='sqlalchemy.',
+        poolclass=pool.NullPool,
+    )
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata,
+            process_revision_directives=process_revision_directives,
+            **current_app.extensions['migrate'].configure_args
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()
diff --git a/cmdb-api/migrations/script.py.mako b/cmdb-api/migrations/script.py.mako
new file mode 100644
index 0000000..2c01563
--- /dev/null
+++ b/cmdb-api/migrations/script.py.mako
@@ -0,0 +1,24 @@
+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision = ${repr(up_revision)}
+down_revision = ${repr(down_revision)}
+branch_labels = ${repr(branch_labels)}
+depends_on = ${repr(depends_on)}
+
+
+def upgrade():
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade():
+    ${downgrades if downgrades else "pass"}