• gitlab4.0->5.0->6.0->7.14->8.0->8.2升级


    参考官方文档:

    https://gitlab.com/gitlab-org/gitlab-ce/tree/master/doc/update

    本地服务器为4.0.1版本

     1)4.0.1->4.1

    sudo service gitlab stop

    cd /home/gitlab/gitlab/

    sudo -u gitlab -H git fetch   ===>获取最新代码

    sudo -u gitlab -H git stash

    sudo -u gitlab -H git checkout 4-1-stable

    sudo -u gitlab -H vim Gemfile

    修改内容为:modernizr  改为modernizr-rails  版本 2.7.1

    Gemfile.lock同样修改

    注册mysql gem:

    sudo -u gitlab -H bundle install --without development test postgres

    sudo -u gitlab -H bundle exec rake db:migrate RAILS_ENV=production

    sudo mv /etc/init.d/gitlab /etc/init.d/gitlab.old

    sudo curl --location --output /etc/init.d/gitlab https://raw.github.com/gitlabhq/gitlab-recipes/4-1-stable/init.d/gitlab

    sudo chmod +x /etc/init.d/gitlab

    cp /home/gitlab/gitlab/lib/hooks/post-receive /home/git/.gitolite/hooks/common/post-receive

    chown git:git  /home/git/.gitolite/hooks/common/post-receive

    检查信息:

    sudo -u gitlab -H bundle exec rake gitlab:check RAILS_ENV=production

    service gitlab start

    2) 4.1->4.2

    停止gitlab  nginx: service gitlab stop  ,service nginx stop

    cd /home/gitlab/gitlab/   

    sudo -u gitlab -H git fetch  

    sudo -u gitlab -H git stash

    sudo -u gitlab -H git checkout 4-2-stable

    sudo -u gitlab -H vim Gemfile

    修改内容为:modernizr  改为modernizr-rails  版本 2.7.1

    Gemfile.lock也修改

    # Run a bundle install without deployment to generate the new Gemfile

    sudo -u gitlab -H bundle install --without development test postgres --no-deployment

    ====》报rake版本低,

    gem install rake -v '10.0.3'

    gem uninstall rake -v '0.9.2.2'

    重新执行命令

    # Install libs (with deployment this time)
    sudo -u gitlab -H bundle install --without development test postgres --deployment

    # update db
    sudo -u gitlab -H bundle exec rake db:migrate RAILS_ENV=production

    检查状态:

    sudo -u gitlab -H bundle exec rake gitlab:check RAILS_ENV=production

    重启gitlab  nginx服务

    如果报错:

    解决方案:

    sudo -u gitlab -H bundle exec rake gitlab:satellites:create RAILS_ENV=production

    3)4.2->5.0

    3.1)停止nginx gitlab:

    service nginx stop && service gitlab stop

    3.2)#add bash to git user:

    sudo chsh -s /bin/bash git

    3.3)#git clone gitlab-shell

    cd /home/git/

    sudo -u git -H git clone https://github.com/gitlabhq/gitlab-shell.git /home/git/gitlab-shell

    3.4)#set up gitlab-shell

    sudo chown git:git -R /home/git/repositories/

    sudo su git

    cd /home/git/gitlab-shell

    git checkout v1.1.0

    cp config.yml.example config.yml

    vim config.yml

    修改内容如下:注意IP后面要有/作为结尾  格式 https://IP/  不是http  ,如果这里选择https 需要设置ssl

    我选择http  

    ./support/rewrite-hooks.sh

    ruby -v   #ruby版本要在1.9

    exit

    3.5)#Copy GitLab instance to git user

    sudo cp -R /home/gitlab/gitlab /home/git/gitlab

    sudo chown git:git -R /home/git/gitlab

    sudo rm -rf /home/gitlab/gitlab-satellites

    #if exists

    sudo rm /tmp/gitlab.socket   ====>我验证时该文件不存在

    3.6)#Update GitLab to recent version

    cd /home/git/gitlab

    sudo -u git -H cp config/gitlab.yml config/gitlab.yml.old

    sudo -u git -H git fetch

    sudo -u git -H git stash

    sudo -u git -H git checkout 5-0-stable

     sudo -u git -H cp config/gitlab.yml.example config/gitlab.yml

    sudo -u git -H vim config/gitlab.yml   修改内容如下:

    sudo -u git -H vim Gemfile

    修改如下:

    同理修改Gemfile.lock 

    sudo -u git -H bundle install --without development test postgres --no-deployment

     ====>这步如果出现输入密码也不行的问题

    解决方案: root权限下 bundle install --without development test postgres --no-deloyment 再次执行上述命令

    sudo -u git -H bundle install --without development test postgres --deployment

    sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

    sudo -u git -H bundle exec rake gitlab:shell:setup RAILS_ENV=production

    sudo -u git -H bundle exec rake gitlab:shell:build_missing_projects RAILS_ENV=production

    sudo -u git -H mkdir -p /home/git/gitlab-satellites

    sudo -u git -H bundle exec rake gitlab:satellites:create RAILS_ENV=production

    sudo -u git -H bundle exec rake gitlab:wiki:migrate RAILS_ENV=production

    # check permissions for /home/git/.ssh/
    sudo -u git -H chmod 700 /home/git/.ssh
    sudo -u git -H chmod 600 /home/git/.ssh/authorized_keys

    # check permissions for /home/git/gitlab/
    sudo chown -R git /home/git/gitlab/log/
    sudo chown -R git /home/git/gitlab/tmp/
    sudo chmod -R u+rwX  /home/git/gitlab/log/
    sudo chmod -R u+rwX  /home/git/gitlab/tmp/
    sudo -u git -H mkdir -p /home/git/gitlab/tmp/pids/
    sudo chmod -R u+rwX  /home/git/gitlab/tmp/pids

     3.7)#Update init.d script and Nginx config

    # init.d
    sudo rm /etc/init.d/gitlab
    sudo curl --location --output /etc/init.d/gitlab https://raw.github.com/gitlabhq/gitlab-recipes/5-0-stable/init.d/gitlab
    sudo chmod +x /etc/init.d/gitlab

    # unicorn
    sudo -u git -H cp /home/git/gitlab/config/unicorn.rb /home/git/gitlab/config/unicorn.rb.old
    sudo -u git -H cp /home/git/gitlab/config/unicorn.rb.example /home/git/gitlab/config/unicorn.rb

    # Nginx
    # Replace path from '/home/gitlab/' to '/home/git/'
    sudo vim /etc/nginx/sites-enabled/gitlab   ==>或者直接修改nginx.conf
    sudo service nginx restart

    3.8)启动gitlab

    sudo service gitlab start

    # check if unicorn and sidekiq started
    # If not try to logout, also check replaced path from '/home/gitlab/' to '/home/git/'
    # in Nginx, unicorn, init.d etc
    ps aux | grep unicorn
    ps aux | grep sidekiq

    3.9)检查注册

    sudo -u git -H /home/git/gitlab-shell/bin/check

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

     3.10)清除旧版本

    sudo userdel -r gitlab

    cd /home/git

    sudo -u git -H vim .profile ===>清除内容

    sudo rm -R bin
    sudo rm -Rf gitolite
    sudo rm -R .gitolite
    sudo rm .gitolite.rc
    sudo rm -f gitlab.pub
    sudo rm projects.list

    sudo service gitlab stop
    cd /home/git/gitlab
    sudo rm -R tmp
    sudo -u git -H mkdir tmp
    sudo chmod -R u+rwX  tmp/

    sudo -u git -H mkdir tmp/pids/
    sudo chmod -R u+rwX  tmp/pids/

    sudo reboot

    启动gitlab :

    /usr/local/bin/redis-server && service nginx start & service gitlab start

    检查运行状况:

    cd /home/git/gitlab

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

     4)5.0->5.1

    4.1)停止gitlab  nginx服务

    service gitlab stop && service nginx stop

    4.2)获取最新的code

    cd /home/git/gitlab
    sudo -u git -H git fetch
     sudo -u git -H git stash

    sudo -u git -H git checkout 5-1-stable

    4.3)更新gitlab-shell

    cd /home/git/gitlab-shell

    sudo -u git -H git fetch

    sudo -u git -H git stash

    sudo -u git -H git checkout v1.3.0

    sudo -u git -H mv config.yml config.yml.old

    sudo -u git -H cp config.yml.example config.yml

    sudo -u git -H vi config.yml  ===>修改url   gitlab_url: "http://10.2.177.35/"

    4.4)Install libs, migrations

    cd /home/git/gitlab

    sudo rm tmp/sockets/gitlab.socket

    sudo -u git -H cp config/puma.rb.example config/puma.rb

    sudo -u git -H vim Gemfile  ====>修改`gem "modernizr-rails", "2.7.1"``

    sudo -u git -H bundle install --without development test postgres --no-deployment

    ===》出现输入密码不起作用,解决方案之前一样:

    root权限执行bundle 在执行该命令

    ===》

    sudo -u git -H bundle install --without development test postgres --deployment

    sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

    sudo -u git -H bundle exec rake migrate_merge_requests RAILS_ENV=production

    sudo -u git -H bundle exec rake assets:precompile RAILS_ENV=production

    4.5)更新启动脚本

    sudo rm /etc/init.d/gitlab

    sudo curl --location --output /etc/init.d/gitlab https://raw.github.com/gitlabhq/gitlab-recipes/5-1-stable/init.d/gitlab

    sudo chmod +x /etc/init.d/gitlab

    4.6)更改MySQL权限

    登陆MySQL

    GRANT LOCK TABLES ON `gitlabhq_production`.* TO 'gitlab'@'localhost';

    flush privileges;

    quit;

    4.7)检查注册信息   

    service nginx start   ===>nginx要先于gitlab启动,否则会报错

    service gitlab start

    sudo -u git -H /home/git/gitlab-shell/bin/check

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

     5)5.1->5.2

    备份:

    cd /home/git/gitlab

    sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production

    停止服务:

    service gitlab stop && service nginx stop

    更新代码:

    cd /home/git/gitlab
    sudo -u git -H git fetch

    sudo -u git -H git stash
    sudo -u git -H git checkout 5-2-stable

    更新gitlab-shell

    cd /home/git/gitlab-shell
    sudo -u git -H git fetch
    sudo -u git -H git checkout v1.4.0

    更新lib等

    cd /home/git/gitlab

    sudo -u git -H vim Gemfile  ===》`gem "modernizr-rails", "2.7.1"``

    sudo -u git -H bundle install --without development test postgres --no-deployment

    sudo -u git -H bundle install --without development test postgres --deployment

    sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

    sudo -u git -H bundle exec rake assets:precompile RAILS_ENV=production

    更新config文件

    vim /home/git/gitlab/config/gitlab.yml   ===>我的host是IP ,所以不用修改

    vim home/git/gitlab/config/puma.rb     ====>我才用默认

    更新启动脚本

    cd /home/git/gitlab
    sudo rm /etc/init.d/gitlab
    sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab
    sudo chmod +x /etc/init.d/gitlab

    清理uploads目录

    cd /home/git/gitlab
    sudo -u git -H mkdir public/uploads
    sudo chmod -R u+rwX  public/uploads

    启动应用:

    service gitlab start

    service nginx restart

    信息检查:

    sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

    6)5.2->5.4

    备份:

    cd /home/git/gitlab
    sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production

    停止服务:

    sudo service gitlab stop

    更新代码:

    cd /home/git/gitlab
    sudo -u git -H git fetch
    sudo -u git -H git checkout 5-4-stable

    更新gitlab-shell:

    cd /home/git/gitlab-shell
    sudo -u git -H git fetch
    sudo -u git -H git checkout v1.7.9

    更新lib等:

    cd /home/git/gitlab

    sudo -u git -H vim Gemfile ===>gem "modernizr-rails", "2.7.1"

    sudo -u git -H bundle install --without development test postgres --no-deployment

    sudo -u git -H bundle install --without development test postgres --deployment

    sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

    #sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

    sudo -u git -H bundle exec rake assets:precompile RAILS_ENV=production

    更新config文件:

    vim /home/git/gitlab/config/gitlab.yml   ===》不改,原因同上  host没变

    vim /home/git/gitlab/config/puma.rb    ===》不改

    更新启动脚本:

    sudo rm /etc/init.d/gitlab
    sudo curl --location --output /etc/init.d/gitlab https://raw.github.com/gitlabhq/gitlabhq/5-4-stable/lib/support/init.d/gitlab
    sudo chmod +x /etc/init.d/gitlab

    启动服务:

    sudo service gitlab start
    sudo service nginx restart

    检查运行状态:

    sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

    7)5.4->6.0

    备份:

    cd /home/git/gitlab
    sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production

    停止服务:

    sudo service gitlab stop

    获取新代码:

    cd /home/git/gitlab
    sudo -u git -H git fetch

    sudo -u git -H git stash
    sudo -u git -H git checkout 6-0-stable

    更新gitlab-shell

    cd /home/git/gitlab-shell
    sudo -u git -H git fetch
    sudo -u git -H git checkout v1.7.9

    安装额外依赖包

    yum install python-docutils

    更新lib等:

    cd /home/git/gitlab

    sudo -u git -H vim Gemfile  ===》`gem "modernizr-rails", "2.7.1"``

    Gemfile.lock也要修改

    sudo -u git -H bundle install --without development test postgres --no-deployment

    sudo -u git -H bundle install --without development test postgres --deployment

    sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production
    sudo -u git -H bundle exec rake migrate_groups RAILS_ENV=production
    sudo -u git -H bundle exec rake migrate_global_projects RAILS_ENV=production
    sudo -u git -H bundle exec rake migrate_keys RAILS_ENV=production
    sudo -u git -H bundle exec rake migrate_inline_notes RAILS_ENV=production
    sudo -u git -H bundle exec rake gitlab:satellites:create RAILS_ENV=production

    sudo -u git -H bundle exec rake cache:clear RAILS_ENV=production

    sudo -u git -H bundle exec rake assets:clean RAILS_ENV=production
    sudo -u git -H bundle exec rake assets:precompile RAILS_ENV=production

    更新config文件

    vim /home/git/gitlab/config/gitlab.yml

    vim /home/git/gitlab/config/unicorn.rb

    更新启动脚本

    sudo rm /etc/init.d/gitlab
    sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab
    sudo chmod +x /etc/init.d/gitlab

    启动脚本

    sudo service gitlab start
    sudo service nginx restart

    运行检查:

    sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

    8)6.0->7.14md

    //git stash

    8.1)停止服务:

    service gitlab stop

    8.2)更新ruby==>2.1.6

    mkdir /tmp/ruby && cd /tmp/ruby

    wget https://cache.ruby-lang.org/pub/ruby/2.1/ruby-2.1.6.tar.gz

    tar zxvf ruby-2.1.6.tar.gz

    cd ruby-2.1.6
    ./configure --disable-install-rdoc
    make
    sudo make install

    sudo gem install bundler --no-ri --no-rdoc

    8.3)获取新代码

    cd /home/git/gitlab
    sudo -u git -H git fetch --all
    sudo -u git -H git checkout -- db/schema.rb

    sudo -u git -H git checkout 7-14-stable

    8.4)安装额外包

    yum install logrotate cmake krb5-devel nodejs pkg-config  ===>pkg-config不知道redhat包名是上面,which pkg-config显示有输出,代表安装了

    8.5)设置redis

    由于已经安装了redis,修改配置

    sudo cp /etc/redis/redis.conf /etc/redis/redis.conf.orig

    sed 's/^port .*/port 0/' /etc/redis/redis.conf.orig | sudo tee /etc/redis/redis.conf

    echo 'unixsocket /var/run/redis/redis.sock' | sudo tee -a /etc/redis/redis.conf

    sudo sed -i '/# unixsocketperm/ s/^# unixsocketperm.*/unixsocketperm 0775/' /etc/redis/redis.conf

    sudo service redis-server restart

    sudo usermod -aG redis git

    ############如果没有在/etc/redis/下发现redis.conf

    自己重新拷贝,创建目录即可

    cp /opt/redis-xxx/utils/redis_init_script /etc/init.d/redisd

    chmod +x /etc/init.d/redisd     ===>之后可以使用service redisd start 启动服务

    vim /etc/init.d/redisd  ===>修改redis 的相关信息  如redis config的名字等

    mkdir /etc/redis  

    cp /opt/redis-xxx/redis.conf   /etc/redis/redis.conf

    ############

    sudo -u git -H cp config/resque.yml.example config/resque.yml

    sudo -u git -H editor config/resque.yml  ====》默认不用修改

    sudo -u git -H sed -i 's|^  # socket.*|  socket: /var/run/redis/redis.sock|' /home/git/gitlab-shell/config.yml

    8.6)更新gitlab-shell

    cd /home/git/gitlab-shell
    sudo -u git -H git fetch
    sudo -u git -H git checkout v2.6.5

    8.7)更新lib

    cd /home/git/gitlab

    sudo -u git -H bundle install --without development test postgres --deployment

    ====>报Downloading gollum-lib-4.0.2 revealed dependencies not in the API or the lockfile (rouge (~> 1.7.4))

    解决方案:修改rouge 版本为1.7.4 ===》修改  Gemfile.lock文件

    sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production VERSION=20130909132950

    sudo -u git -H bundle exec rake migrate_iids RAILS_ENV=production

    sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

    sudo -u git -H bundle exec rake assets:clean assets:precompile cache:clear RAILS_ENV=production

    sudo chmod u+rwx,g+rx,o-rwx /home/git/gitlab-satellites

    sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab

    8.8)更新config文件

    检查 /home/git/gitlab/config/gitlab.yml   /home/git/gitlab/config/unicorn.rb /home/git/gitlab-shell/config.yml 三个文件的配置

    sudo -u git -H cp config/initializers/rack_attack.rb.example config/initializers/rack_attack.rb

    sudo cp lib/support/logrotate/gitlab /etc/logrotate.d/gitlab

    8.9)检查nginx配置

    检查nginx.conf配置  ====》可以不用改

    检查tmp/uploads目录是否存在==》存在

    8.10)启动服务检查运行状态

    sudo service gitlab start
    sudo service nginx restart

    cd /home/git/gitlab
    sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production  ===》如果报错

    检查/home/git/gitlab-shell/config.yml中关于redis的路径/端口/IP是否与redis实际一致===》我的问题是redis-cli路径不对

     9)7.14->8.0 

    要求git版本>2.2      ====>符合要求跳过

    sudo service gitlab stop

    cd /home/git/gitlab
    sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production

    sudo -u git -H git fetch --all
    sudo -u git -H git checkout -- db/schema.rb

    sudo -u git -H git checkout 8-0-stable

    cd /home/git/gitlab-shell
    sudo -u git -H git fetch
    sudo -u git -H git checkout v2.6.5

    #######安装go

    cd /opt/

    wget http://storage.googleapis.com/golang/go1.5.linux-amd64.tar.gz

    sudo tar -C /usr/local -xzf go1.5.linux-amd64.tar.gz

    sudo ln -sf /usr/local/go/bin/{go,godoc,gofmt} /usr/local/bin/

    rm -rf go1.5.linux-amd64.tar.gz

    ######安装gitlab-git-http-server

    cd /home/git
    sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-git-http-server.git
    cd gitlab-git-http-server
    sudo -u git -H git checkout 0.2.14
    sudo -u git -H make

     cd /home/git/gitlab

    sudo -u git tee -a config/unicorn.rb <<EOF
    listen "127.0.0.1:8080", :tcp_nopush => true
    EOF

    cd /home/git/gitlab
    sudo -u git -H cp config/secrets.yml.example config/secrets.yml
    sudo -u git -H chmod 0600 config/secrets.yml

    cd /home/git/gitlab

    vim Gemfile  Gemfile.lock 把rouge版本改成1.7.4

    sudo -u git -H bundle install --without postgres development test --deployment

    sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

    sudo -u git -H bundle exec rake assets:clean assets:precompile cache:clear RAILS_ENV=production

    sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab

    ###########修改配置文件

    更新日志 cp lib/support/logrotate/gitlab /etc/logrotate.d/gitlab

    更新nginx文件 

    cp lib/supportinx/gitlab /etcinx/conf.d/gitlab.conf   
    修改如下:

    cp config/gitlab.yml.example config/gitlab.yml   ====》参考旧版本修改
      
     

    git 路径按照实际修改即可

    cp config/database.yml.mysql config/database.yml    ===》以往如前,初心不改  修改账户密码
     
    cd /home/git/gitlab-shell
    cp config.yml.example config.yml     ====>按照实际修改
     

    重启ngnx  gitlab 服务

    检查运行状态

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production    =====》实在不想写了,重复次数太多了
     
    sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production

     10)8.0->8.2升级

    停止服务: sudo service gitlab stop

    备份:

    cd /home/git/gitlab
    sudo -u git -H bundle exec rake gitlab:backup:create RAILS_ENV=production

     获取最新代码:

    sudo -u git -H git fetch --all

    sudo -u git -H git checkout -- db/schema.rb

    sudo -u git -H git stash

    sudo -u git -H git checkout 8-2-stable

    更新gitlab-shell

    cd /home/git/gitlab-shell

    sudo -u git -H git fetch

    sudo -u git -H git checkout v2.6.8

    安装gitworkshore

    cd /home/git
    sudo -u git -H git clone https://gitlab.com/gitlab-org/gitlab-workhorse.git
    cd gitlab-workhorse
    sudo -u git -H git checkout 0.4.2
    sudo -u git -H make

    重置lib等目录

    cd /home/git/gitlab

    sudo -u git -H bundle install --without postgres development test --deployment

     sudo -u git -H bundle exec rake db:migrate RAILS_ENV=production

     sudo -u git -H bundle exec rake assets:clean assets:precompile cache:clear RAILS_ENV=production

     sudo cp lib/support/init.d/gitlab /etc/init.d/gitlab

    修改配置文件

    cp config/gitlab.yml.example config/gitlab.yml

    vim config/gitlab.yml   

    =====>修该host

    cp lib/support/nginx/gitlab  /etc/nginx/conf.d/gitlab8_2.conf

    vim /etc/nginx/conf.d/gitlab8_2.conf

    ===>

     

    启动服务&状态检查

    sudo service gitlab start

    sudo service nginx restart

    sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production

    sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production

  • 相关阅读:
    C++ istringstream总结
    C++各数据类型的最值
    AcWing 机器人跳跃问题 二分
    蓝桥杯 矩形面积交
    蓝桥杯 完美的代价
    蓝桥杯 数的读法
    国内 镜像 下载
    redis的pipline使用
    MySQL额外操作
    sql强化演练( goods 表练习)
  • 原文地址:https://www.cnblogs.com/zy1234567/p/9940282.html
Copyright © 2020-2023  润新知