我可以使用哪个 linux 发行版 docker 映像连接到 MySQL v8.0.12？
Which linux distro docker image I can use to connect to MySQL v8.0.12?
我有一个安装了 docker 的 redhat 服务器
我想创建一个 docker 图像，我想在其中使用 MySQL 运行 django，但问题是 django 无法连接到 MySQL 服务器（远程服务器）。
我收到以下错误：
Plugin caching_sha2_password could not be loaded: /usr/lib/x86_64-linux-gnu/mariadb19/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory
我用谷歌搜索了一下，发现图书馆不支持 'caching_sha2_password'。
谁能建议我哪个发行版有支持 'caching_sha2_password' 的库？
提前致谢。
P.S。
我无权访问 MySQL 服务器，因此服务器端的任何更改都不在我手中。
更新：
Docker 文件：
FROM python:3.7.4-stretch
COPY code/ /code/
WORKDIR /code
RUN apt-get update
RUN apt-get -y upgrade
RUN pip install -r requirements.txt
EXPOSE 8000
RUN python manage.py migrate
CMD python manage.py runserver
错误：
Step 8/9 : RUN python manage.py migrate
---> Running in a907f2d6dce6
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 197, in connect
self.connection = self.get_new_connection(conn_params)
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 233, in get_new_connection
return Database.connect(**conn_params)
File "/usr/local/lib/python3.7/site-packages/MySQLdb/__init__.py", line 84, in Connect
return Connection(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/MySQLdb/connections.py", line 179, in __init__
super(Connection, self).__init__(*args, **kwargs2)
MySQLdb._exceptions.OperationalError: (2059, "Authentication plugin 'caching_sha2_password' cannot be loaded: /usr/lib/x86_64-linux-gnu/mariadb18/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory")
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python3.7/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python3.7/site-packages/django/core/management/__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python3.7/site-packages/django/core/management/base.py", line 328, in run_from_argv
self.execute(*args, **cmd_options)
File "/usr/local/lib/python3.7/site-packages/django/core/management/base.py", line 366, in execute
self.check()
File "/usr/local/lib/python3.7/site-packages/django/core/management/base.py", line 395, in check
include_deployment_checks=include_deployment_checks,
File "/usr/local/lib/python3.7/site-packages/django/core/management/commands/migrate.py", line 63, in _run_checks
issues = run_checks(tags=[Tags.database])
File "/usr/local/lib/python3.7/site-packages/django/core/checks/registry.py", line 72, in run_checks
new_errors = check(app_configs=app_configs)
File "/usr/local/lib/python3.7/site-packages/django/core/checks/database.py", line 10, in check_database_backends
issues.extend(conn.validation.check(**kwargs))
File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/validation.py", line 9, in check
issues.extend(self._check_sql_mode(**kwargs))
File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/validation.py", line 13, in _check_sql_mode
with self.connection.cursor() as cursor:
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 260, in cursor
return self._cursor()
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 236, in _cursor
self.ensure_connection()
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.7/site-packages/django/db/utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 197, in connect
self.connection = self.get_new_connection(conn_params)
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 233, in get_new_connection
return Database.connect(**conn_params)
File "/usr/local/lib/python3.7/site-packages/MySQLdb/__init__.py", line 84, in Connect
return Connection(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/MySQLdb/connections.py", line 179, in __init__
super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (2059, "Authentication plugin 'caching_sha2_password' cannot be loaded: /usr/lib/x86_64-linux-gnu/mariadb18/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory")
The command '/bin/sh -c python manage.py migrate' returned a non-zero code: 1
Requirement.txt:
django==3.0.4
django-environ==0.4.5
bcrypt==3.1.7
mysqlclient==1.4.6
psycopg2==2.8.4
PyMySQL==0.9.3
哦，不要在您的构建中包含您的 python manage.py migrate。首先，你还没有在那里设置数据库。迁移应该在容器启动时完成。你可以使用 ENTRYPOINT.. 我会给你一个好的 django Dockerfile 的例子
Dockerfile
FROM python:3.8.0
WORKDIR /usr/src/app
EXPOSE 8000
# Install vim, enable compilemessages and m2crypto
RUN apt-get update && \
apt-get install vim -y
COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt
COPY . .
ENTRYPOINT ["/usr/src/app/entrypoint.sh"]
entrypoint.sh
#!/bin/bash
# run makemigrate until database is already available, useful on first time setup
# as makemigrate comes first before creating the default 'db, password and user'
until python manage.py makemigrations && python manage.py migrate
do
echo "Try again"
done &
python manage.py runserver
对于上面的 Dockerfile
- 为什么我要为 requirements.txt 和我的所有文件 (.)
单独复制一份
- 请注意，我使用
COPY . . 这是因为我的 Dockerfile 位于我的 manage.py 所在的 django 中
我成功了！
正如@danblack 在评论中建议的那样，我要求数据库团队将身份验证插件从 caching_sha2_password 更改为 mysql_native_password。
截至 2020 年 3 月，我们没有支持 caching_sha2_password 身份验证插件的库。
还要感谢 Dean Christian Armada 更正了我的 Dockerfile。
我有一个安装了 docker 的 redhat 服务器 我想创建一个 docker 图像，我想在其中使用 MySQL 运行 django，但问题是 django 无法连接到 MySQL 服务器（远程服务器）。 我收到以下错误：
Plugin caching_sha2_password could not be loaded: /usr/lib/x86_64-linux-gnu/mariadb19/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory
我用谷歌搜索了一下，发现图书馆不支持 'caching_sha2_password'。 谁能建议我哪个发行版有支持 'caching_sha2_password' 的库？ 提前致谢。
P.S。 我无权访问 MySQL 服务器，因此服务器端的任何更改都不在我手中。 更新：
Docker 文件：
FROM python:3.7.4-stretch
COPY code/ /code/
WORKDIR /code
RUN apt-get update
RUN apt-get -y upgrade
RUN pip install -r requirements.txt
EXPOSE 8000
RUN python manage.py migrate
CMD python manage.py runserver
错误：
Step 8/9 : RUN python manage.py migrate
---> Running in a907f2d6dce6
Traceback (most recent call last):
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 197, in connect
self.connection = self.get_new_connection(conn_params)
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 233, in get_new_connection
return Database.connect(**conn_params)
File "/usr/local/lib/python3.7/site-packages/MySQLdb/__init__.py", line 84, in Connect
return Connection(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/MySQLdb/connections.py", line 179, in __init__
super(Connection, self).__init__(*args, **kwargs2)
MySQLdb._exceptions.OperationalError: (2059, "Authentication plugin 'caching_sha2_password' cannot be loaded: /usr/lib/x86_64-linux-gnu/mariadb18/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory")
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "manage.py", line 22, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python3.7/site-packages/django/core/management/__init__.py", line 401, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python3.7/site-packages/django/core/management/__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/usr/local/lib/python3.7/site-packages/django/core/management/base.py", line 328, in run_from_argv
self.execute(*args, **cmd_options)
File "/usr/local/lib/python3.7/site-packages/django/core/management/base.py", line 366, in execute
self.check()
File "/usr/local/lib/python3.7/site-packages/django/core/management/base.py", line 395, in check
include_deployment_checks=include_deployment_checks,
File "/usr/local/lib/python3.7/site-packages/django/core/management/commands/migrate.py", line 63, in _run_checks
issues = run_checks(tags=[Tags.database])
File "/usr/local/lib/python3.7/site-packages/django/core/checks/registry.py", line 72, in run_checks
new_errors = check(app_configs=app_configs)
File "/usr/local/lib/python3.7/site-packages/django/core/checks/database.py", line 10, in check_database_backends
issues.extend(conn.validation.check(**kwargs))
File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/validation.py", line 9, in check
issues.extend(self._check_sql_mode(**kwargs))
File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/validation.py", line 13, in _check_sql_mode
with self.connection.cursor() as cursor:
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 260, in cursor
return self._cursor()
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 236, in _cursor
self.ensure_connection()
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.7/site-packages/django/db/utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 220, in ensure_connection
self.connect()
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/base/base.py", line 197, in connect
self.connection = self.get_new_connection(conn_params)
File "/usr/local/lib/python3.7/site-packages/django/utils/asyncio.py", line 26, in inner
return func(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/django/db/backends/mysql/base.py", line 233, in get_new_connection
return Database.connect(**conn_params)
File "/usr/local/lib/python3.7/site-packages/MySQLdb/__init__.py", line 84, in Connect
return Connection(*args, **kwargs)
File "/usr/local/lib/python3.7/site-packages/MySQLdb/connections.py", line 179, in __init__
super(Connection, self).__init__(*args, **kwargs2)
django.db.utils.OperationalError: (2059, "Authentication plugin 'caching_sha2_password' cannot be loaded: /usr/lib/x86_64-linux-gnu/mariadb18/plugin/caching_sha2_password.so: cannot open shared object file: No such file or directory")
The command '/bin/sh -c python manage.py migrate' returned a non-zero code: 1
Requirement.txt:
django==3.0.4
django-environ==0.4.5
bcrypt==3.1.7
mysqlclient==1.4.6
psycopg2==2.8.4
PyMySQL==0.9.3
哦，不要在您的构建中包含您的 python manage.py migrate。首先，你还没有在那里设置数据库。迁移应该在容器启动时完成。你可以使用 ENTRYPOINT.. 我会给你一个好的 django Dockerfile 的例子
Dockerfile
FROM python:3.8.0
WORKDIR /usr/src/app
EXPOSE 8000
# Install vim, enable compilemessages and m2crypto
RUN apt-get update && \
apt-get install vim -y
COPY requirements.txt requirements.txt
RUN pip install -r requirements.txt
COPY . .
ENTRYPOINT ["/usr/src/app/entrypoint.sh"]
entrypoint.sh
#!/bin/bash
# run makemigrate until database is already available, useful on first time setup
# as makemigrate comes first before creating the default 'db, password and user'
until python manage.py makemigrations && python manage.py migrate
do
echo "Try again"
done &
python manage.py runserver
对于上面的 Dockerfile
- 为什么我要为 requirements.txt 和我的所有文件 (.) 单独复制一份
- 请注意，我使用
COPY . .这是因为我的 Dockerfile 位于我的 manage.py 所在的 django 中
我成功了！
正如@danblack 在评论中建议的那样，我要求数据库团队将身份验证插件从 caching_sha2_password 更改为 mysql_native_password。 截至 2020 年 3 月，我们没有支持 caching_sha2_password 身份验证插件的库。
还要感谢 Dean Christian Armada 更正了我的 Dockerfile。