diff --git a/foxnut/db/sqlalchemy/models.py b/foxnut/db/sqlalchemy/models.py
new file mode 100644
index 0000000..5616f23
--- /dev/null
+++ b/foxnut/db/sqlalchemy/models.py
@@ -0,0 +1,273 @@
+"""
+SQLAlchemy models for baremetal compute service.
+"""
+
+try:
+    import simplejson as json
+except ImportError:
+    import json
+from sqlalchemy.ext.hybrid import hybrid_property
+from sqlalchemy import Table, Column
+from sqlalchemy import Integer, String, DateTime, Boolean, Enum, Text
+from sqlalchemy import ForeignKey, TypeDecorator
+from sqlalchemy.ext import mutable
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import relationship, validates
+from sqlalchemy.sql import func
+
+
+SERVER_STATUS = Enum('null', 'shelving', 'shelved', 'building', 'builded', 'checking', 'checked',
+                     'deploying', 'deployed', 'testing', 'product')
+
+Base = declarative_base()
+
+
+user_role_table = Table('user_role_relation', Base.metadata,
+                        Column('user_uuid', String(36), ForeignKey('users.uuid')),
+                        Column('role_uuid', String(36), ForeignKey('roles.uuid')))
+
+role_server_table = Table('role_server_relation', Base.metadata,
+                          Column('role_uuid', String(36), ForeignKey('roles.uuid')),
+                          Column('server_uuid', String(36), ForeignKey('servers.uuid')))
+
+role_command_table = Table('role_command_relation', Base.metadata,
+                           Column('role_uuid', String(36), ForeignKey('roles.uuid')),
+                           Column('command_uuid', String(36), ForeignKey('command_aliases.uuid')))
+
+
+class JsonEncodedDict(TypeDecorator):
+    impl = String
+
+    def process_bind_param(self, value, dialect):
+        return json.dumps(value)
+
+    def process_result_value(self, value, dialect):
+        return json.loads(value)
+
+
+mutable.MutableDict.associate_with(JsonEncodedDict)
+
+
+class VenusBase():
+    uuid = Column(String(36), primary_key=True)
+    name = Column(String(16))
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+    deleted_at = Column(DateTime(32))
+    deleted = Column(Boolean, default=0)
+    comment = Column(Text, default='')
+
+
+class ProductBase(VenusBase):
+    vendor = Column(String(16))
+    model = Column(String(32))
+    status = Column(Enum('active', 'error'), default='active')
+
+
+class DataCenter(Base, VenusBase):
+    __tablename__ = 'datacenters'
+    location = Column(String(64))
+    racks = relationship('Rack', back_populates='datacenter')
+
+    @hybrid_property
+    def sub_resources(self):
+        return {'racks': self.racks}
+
+
+class Rack(Base, VenusBase):
+    __tablename__ = 'racks'
+    dc_uuid = Column(String(36), ForeignKey('datacenters.uuid'), nullable=False)
+    height = Column(Integer)
+    electricity = Column(Integer)
+    rack_limit = Column(Integer)
+    datacenter = relationship('DataCenter', back_populates='racks')
+    servers = relationship('Server', back_populates='rack')
+    switches = relationship('Switch', back_populates='rack')
+
+    @hybrid_property
+    def sub_resources(self):
+        return {'servers': self.servers, 'switches': self.switches}
+
+
+class Server(Base, ProductBase):
+    """Represents a bare metal server"""
+    __tablename__ = 'servers'
+    domain = Column(String(64))
+    power_status = Column(Boolean, default=True)
+    sn = Column(String(32), unique=True)
+    cpu_model = Column(String(32))
+    cpu_count = Column(Integer)
+    mem_total = Column(Integer)
+    raid_model = Column(String(32))
+    system = Column(String(16))
+    rack_layer = Column(String(8))
+    role = Column(String(10))
+    ipmi_ip = Column(String(64))
+    ipmi_netmask = Column(String(64))
+    ipmi_gateway = Column(String(64))
+    mgm_ip = Column(String(64))
+    mgm_mac = Column(String(64))
+    mgm_netmask = Column(String(64))
+    mgm_gateway = Column(String(64))
+    raid_conf = Column(JsonEncodedDict(1000))
+    launched_at = Column(DateTime(32))
+    rack_uuid = Column(String(36), ForeignKey('racks.uuid'))
+    dc_uuid = Column(String(36), ForeignKey('datacenters.uuid'))
+    build_state = Column(Enum('building', 'unbuild', 'absent'))
+    state = Column(SERVER_STATUS)
+    rack = relationship('Rack', back_populates='servers')
+    roles = relationship('Role', secondary=role_server_table, back_populates='servers')
+    disks = relationship('Disk', back_populates='server')
+    ports = relationship('ServerPort', back_populates='server')
+
+    @hybrid_property
+    def sub_resources(self):
+        return {'ports': self.ports, 'disks': self.disks}
+
+
+class Switch(Base, ProductBase):
+    """Represents a switch."""
+    __tablename__ = 'switches'
+    name = Column(String(64), unique=True)
+    power_status = Column(Boolean, default=True)
+    sn = Column(String(32), unique=True)
+    rack_layer = Column(String(8))
+    role = Column(String(10))
+    mgm_ip = Column(String(64))
+    mgm_mac = Column(String(64))
+    launched_at = Column(DateTime(32))
+    rack_uuid = Column(String(36), ForeignKey('racks.uuid'))
+    dc_uuid = Column(String(36), ForeignKey('datacenters.uuid'))
+    rack = relationship('Rack', back_populates='switches')
+    ports = relationship('SwitchPort', back_populates='switch')
+
+    @hybrid_property
+    def sub_resources(self):
+        return {'ports': self.ports}
+
+
+class Disk(Base, ProductBase):
+    """Represents a disk."""
+    __tablename__ = 'disks'
+    server_uuid = Column(String(36), ForeignKey('servers.uuid'))
+    wwn = Column(String(64), unique=True)
+    disk_type = Column(Enum('SSD', 'HDD'))
+    total_gb = Column(Integer)
+    support_discard = Column(String(8))
+    server = relationship('Server', back_populates='disks')
+
+
+class ServerPort(Base, ProductBase):
+    """Represents a network port."""
+    __tablename__ = 'server_ports'
+    server_uuid = Column(String(36), ForeignKey('servers.uuid'), nullable=False)
+    switch_port_uuid = Column(String(36), ForeignKey('switch_ports.uuid'))
+    mac_addr = Column(String(64), unique=True)
+    ip_addr = Column(String(64))
+    netmask = Column(String(64))
+    vlan = Column(String(64))
+    vlan_type = Column(String(64))
+    speed = Column(Integer)
+    switch_port = relationship('SwitchPort', uselist=False, back_populates='server_port')
+    server = relationship('Server', back_populates='ports', lazy='subquery')
+
+    @hybrid_property
+    def sub_resources(self):
+        self.server
+        return {'switch_port': self.switch_port}
+
+
+class SwitchPort(Base, ProductBase):
+    """Represents a network port."""
+    __tablename__ = 'switch_ports'
+    switch_uuid = Column(String(36), ForeignKey('switches.uuid'), nullable=False)
+    mac_addr = Column(String(64), unique=True)
+    ip_addr = Column(String(64))
+    netmask = Column(String(64))
+    vlan = Column(String(64))
+    vlan_type = Column(String(64))
+    speed = Column(Integer)
+    server_port = relationship('ServerPort', uselist=False, back_populates='switch_port')
+    switch = relationship('Switch', back_populates='ports', lazy='subquery')
+
+    @hybrid_property
+    def sub_resources(self):
+        self.switch
+        return {'server_port': self.server_port}
+
+
+class User(Base, VenusBase):
+    __tablename__ = 'users'
+    name = Column(String(32), unique=True, nullable=False)
+    user_type = Column(Enum('ldap', 'normal'), default='normal')
+    password = Column(String(100))
+    is_active = Column(Boolean, default=True)
+    roles = relationship('Role', secondary=user_role_table, back_populates='users')
+
+    @hybrid_property
+    def sub_resources(self):
+        self.roles
+        return {'roles': self.roles}
+
+
+class Role(Base, VenusBase):
+    __tablename__ = 'roles'
+    name = Column(String(32), unique=True, nullable=False)
+    commands = Column(Text)
+    users = relationship('User', secondary=user_role_table, back_populates='roles')
+    servers = relationship('Server', secondary=role_server_table, back_populates='roles')
+    command_aliases = relationship('CommandAlias', secondary=role_command_table, back_populates='roles')
+
+    @hybrid_property
+    def sub_resources(self):
+        self.command_aliases
+        return {'command_aliases': self.command_aliases}
+
+    @validates('name')
+    def convert_upper(self, key, value):
+        return value.upper()
+
+
+class CommandAlias(Base, VenusBase):
+    __tablename__ = 'command_aliases'
+    name = Column(String(32), unique=True, nullable=False)
+    commands = Column(Text, nullable=False)
+    roles = relationship('Role', secondary=role_command_table, back_populates='command_aliases')
+
+    @validates('name')
+    def convert_upper(self, key, value):
+        return value.upper()
+
+
+class Domain(Base, VenusBase):
+    __tablename__ = 'domains'
+    deployed_at = Column(DateTime(32))
+    deployment_manager = Column(String(50))
+    published_at = Column(DateTime(32))
+    state = Column(Enum('null', 'deploying', 'testing', 'product'))
+    put = Column(JsonEncodedDict(1000))
+    port_conf = Column(JsonEncodedDict(1000))
+    raid_conf = Column(JsonEncodedDict(1000))
+    networks = relationship('Network', back_populates='domain')
+
+    @hybrid_property
+    def sub_resources(self):
+        return {'networks': self.networks}
+
+
+class Network(Base, VenusBase):
+    __tablename__ = 'networks'
+    domain_uuid = Column(String(36), ForeignKey('domains.uuid'))
+    type_ = Column('type', String(32))
+    ip_range = Column(String(32))
+    gateway = Column(String(32))
+    netmask = Column(String(32))
+    domain = relationship('Domain', back_populates='networks')
+
+
+class Tag(Base, VenusBase):
+    __tablename__ = 'tags'
+    name = Column(String(32))
+    type_ = Column('type', String(32))
+    resource_type = Column(String(32))
+    resource_uuid = Column(String(36))