Rubyonrails 我的 Ruby on Rails Web API 的 Docker 映像未在服务器上构建，因为它未与 ruby​​gems.org 连接

我构建了一个Docker映像来运行用于GA4咨询的Web API.它在我的开发机器上运行得很好，但在生产环境(Centos 7服务器)上，它无法构建映像并返回以下错误:

[+] Building 202.3s (8/10)                                       docker:default
 => [internal] load .dockerignore                                          0.0s
 => => transferring context: 2B                                            0.0s
 => [internal] load build definition from dockerfile                       0.0s
 => => transferring dockerfile: 308B                                       0.0s
 => [internal] load metadata for docker.io/library/ruby:3.1.2              0.3s
 => [1/6] FROM docker.io/library/ruby:3.1.2@sha256:7681a3d37560dbe8ff7d0a  0.0s
 => [internal] load build context                                          0.0s
 => => transferring context: 3.65kB                                        0.0s
 => CACHED [2/6] WORKDIR /app                                              0.0s
 => CACHED [3/6] COPY Gemfile Gemfile.lock ./                              0.0s
 => ERROR [4/6] RUN gem install bundler:2.2.28                           201.8s
------
 > [4/6] RUN gem install bundler:2.2.28:
121.3 ERROR:  Could not find a valid gem 'bundler' (= 2.2.28), here is why:
121.3           Unable to download data from https://rubygems.org/ - SocketError: Failed to open TCP connection to rubygems.org:443 (getaddrinfo: Temporary failure in name resolution) (https://rubygems.org/specs.4.8.gz)
------
dockerfile:7
--------------------
   5 |     COPY Gemfile Gemfile.lock ./
   6 |
   7 | >>> RUN gem install bundler:2.2.28
   8 |     RUN bundle install
   9 |
--------------------
ERROR: failed to solve: process "/bin/sh -c gem install bundler:2.2.28" did not complete successfully: exit code: 2

我的Dockerfile:

FROM ruby:3.1.2

WORKDIR /app

COPY Gemfile Gemfile.lock ./

RUN gem install bundler
RUN bundle install

COPY . .

EXPOSE 3000

CMD ["rails", "server", "-b", "0.0.0.0"]`

运行该命令时:

docker build -t api .

我得到了前面的错误.