[Update]更新迁移文档

docs/installation.rst

@@ -11,3 +11,4 @@
    setup_by_optimization
    start_automatically
    upgrade
+   migration

docs/migration.rst

+服务迁移
+-------------
+
+对 Jumpserver 服务进行迁移, 只需要备份 数据库 和 jumpserver 目录即可
+
+1. 备份数据到新的服务器
+
+.. code-block:: shell
+
+    # 导出 jumpserver 数据库到新的服务器
+    $ mysqldump -uroot -p jumpserver > /opt/jumpserver.sql
+    # 把 jumpserver.sql 拷贝到新的服务器 /opt 目录
+    # 复制 Jumpserve 目录到新的服务器 /opt 目录
+
+2. 配置新服务器 (注意 mysql-server 的版本要与旧服务器一致)
+
+.. code-block:: shell
+
+    $ localedef -c -f UTF-8 -i zh_CN zh_CN.UTF-8
+    $ export LC_ALL=zh_CN.UTF-8
+    $ echo 'LANG="zh_CN.UTF-8"' > /etc/locale.conf
+
+    $ yum -y install wget gcc epel-release git
+
+    $ yum -y install mariadb mariadb-devel mariadb-server
+    $ yum -y install redis
+
+    $ systemctl enable redis
+    $ systemctl enable mariadb
+    $ systemctl start redis
+    $ systemctl start mariadb
+
+    $ mysql -uroot
+    > create database jumpserver default charset 'utf8';
+    > grant all on jumpserver.* to 'jumpserver'@'127.0.0.1' identified by 'weakPassword';
+    > use jumpserver;
+    > source /opt/jumpserver.sql;
+    > quit
+
+    $ yum -y install python36 python36-devel
+
+    $ cd /opt
+    $ python3.6 -m venv py3
+    $ source /opt/py3/bin/activate
+
+    $ cd /opt/jumpserver/requirements
+    $ yum -y install $(cat rpm_requirements.txt)
+    $ pip install --upgrade pip setuptools
+    $ pip install -r requirements.txt
+
+3. 修改配置文件
+
+.. code-block:: shell
+
+    $ cd /opt/jumpserver
+    $ vi conf.py
+    # 把数据库和 redis 信息修改并保存
+
+4. 启动 jumpserver
+
+.. code-block:: shell
+
+    $ ./jms start all
+
+5. 其他组件参考安装文档重新设置即可