linux - docker (撰写): connection refused without sudo

Question

一切都很好，直到“某事”。在那个“东西”之后，我可以使用 docker和 docker-compose与 sudo但没有它 docker将无限期挂起，docker-compose将返回连接堆栈跟踪。
不起作用:

运行docker没有 sudo 会无限期地挂起。通过导出 DOCKER_HOST=tcp://127.0.0.1:2375 暂时修复.

docker-compose没有 sudo 返回 connection refused .这不是连接到特定容器，而是连接到所有基本命令，例如 docker-compose ps .

用户属于 docker 的证明团体:

kretyn@junk$ groups kretyn
kretyn : kretyn adm cdrom sudo dip plugdev lpadmin lxd sambashare docker

解决方案提示
我激活了一个指向现有但非事件主机的 docker 上下文。删除该上下文并取消设置 DOCKER_HOST允许 docker命令才能正常工作。这是一个惊喜，因为我在写这个问题之前重新安装(清除了我能找到的所有东西)docker。
删除上下文是不够的。 Docker Compose 需要显式 docker context use default否则它不会明白的。 docker-compose ps 的问题仍然存在。 docker-compose 上的堆栈跟踪

kretyn@junk$ docker-compose ps
Traceback (most recent call last):
  File "urllib3/connection.py", line 159, in _new_conn
  File "urllib3/util/connection.py", line 84, in create_connection
  File "urllib3/util/connection.py", line 74, in create_connection
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "urllib3/connectionpool.py", line 670, in urlopen
  File "urllib3/connectionpool.py", line 392, in _make_request
  File "http/client.py", line 1255, in request
  File "http/client.py", line 1301, in _send_request
  File "http/client.py", line 1250, in endheaders
  File "http/client.py", line 1010, in _send_output
  File "http/client.py", line 950, in send
  File "urllib3/connection.py", line 187, in connect
  File "urllib3/connection.py", line 171, in _new_conn
urllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPConnection object at 0x7f762c4e3e20>: Failed to establish a new connection: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "requests/adapters.py", line 439, in send
  File "urllib3/connectionpool.py", line 726, in urlopen
  File "urllib3/util/retry.py", line 446, in increment
urllib3.exceptions.MaxRetryError: HTTPConnectionPool(host='127.0.0.1', port=2375): Max retries exceeded with url: /version (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f762c4e3e20>: Failed to establish a new connection: [Errno 111] Connection refused'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "docker/api/client.py", line 214, in _retrieve_server_version
  File "docker/api/daemon.py", line 181, in version
  File "docker/utils/decorators.py", line 46, in inner
  File "docker/api/client.py", line 237, in _get
  File "requests/sessions.py", line 543, in get
  File "requests/sessions.py", line 530, in request
  File "requests/sessions.py", line 643, in send
  File "requests/adapters.py", line 516, in send
requests.exceptions.ConnectionError: HTTPConnectionPool(host='127.0.0.1', port=2375): Max retries exceeded with url: /version (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f762c4e3e20>: Failed to establish a new connection: [Errno 111] Connection refused'))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "docker-compose", line 3, in <module>
  File "compose/cli/main.py", line 80, in main
  File "compose/cli/main.py", line 189, in perform_command
  File "compose/cli/command.py", line 60, in project_from_options
  File "compose/cli/command.py", line 152, in get_project
  File "compose/cli/docker_client.py", line 41, in get_client
  File "compose/cli/docker_client.py", line 170, in docker_client
  File "docker/api/client.py", line 197, in __init__
  File "docker/api/client.py", line 221, in _retrieve_server_version
docker.errors.DockerException: Error while fetching server API version: HTTPConnectionPool(host='127.0.0.1', port=2375): Max retries exceeded with url: /version (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f762c4e3e20>: Failed to establish a new connection: [Errno 111] Connection refused'))
[46145] Failed to execute script docker-compose

版本/构建
Linux 发行版

kretyn@junk$ uname -a
Linux junk 5.8.0-43-generic #49~20.04.1-Ubuntu SMP Fri Feb 5 09:57:56 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

docker

kretyn@junk$ sudo docker system info
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  app: Docker App (Docker Inc., v0.9.1-beta3)
  buildx: Build with BuildKit (Docker Inc., v0.5.1-docker)

Server:
 Containers: 9
  Running: 8
  Paused: 0
  Stopped: 1
 Images: 44
 Server Version: 20.10.3
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: true
 Logging Driver: json-file
 Cgroup Driver: cgroupfs
 Cgroup Version: 1
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 269548fa27e0089a8b8278fc4fc781d7f65a939b
 runc version: ff819c7e9184c13b7c2607fe6c30ae19403a7aff
 init version: de40ad0
 Security Options:
  apparmor
  seccomp
   Profile: default
 Kernel Version: 5.8.0-43-generic
 Operating System: Ubuntu 20.04.2 LTS
 OSType: linux
 Architecture: x86_64
 CPUs: 12
 Total Memory: 15.29GiB
 Name: meland
 ID: 3PE6:4AWU:LGRR:HOBJ:XUCJ:ER4H:ZEF5:MWUJ:COEG:WPK5:YH2U:FKUF
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

WARNING: No blkio weight support
WARNING: No blkio weight_device support

docker 组成

kretyn@junk$ sudo docker-compose version
docker-compose version 1.28.0, build d02a7b1a
docker-py version: 4.4.1
CPython version: 3.9.0
OpenSSL version: OpenSSL 1.1.1d  10 Sep 2019

Answer 1

问题是死了context入口。
解决方案
删除了名为 remote 的死上下文使用 docker context rm remote .
即使 docker context ls指向default默认情况下，必须执行 docker context use default以便正确更新上下文。
作为部分修复，我之前设置了 DOCKER_HOST至tcp://127.0.0.1:2375 .更新上下文后，必须取消设置 env 变量，即 unset DOCKER_HOST .
惰性命令，假设上下文 remote :

$ docker context rm remote
$ docker context use default
$ unset DOCKER_HOST

背景
有一个 remote基于 ssh 端点的上下文。我的 ssh 配置设置为名称指向我的域，但最近删除了它背后的主机。
有趣的是，我已经“修复”了一段时间，其中一个步骤是从我的本地 Ubuntu 主机中彻底清除 docker，包括 apt , /var/lib/docker , /etc/docker和 ~/.local/ 中的随机脚本. context ，然而，没有被清理。