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[英]Unable to run docker within the container. Cannot connect to the Docker daemon at unix:///var/run/docker.sock
[英]Docker — Cannot connect to the Docker daemon at unix:///var/run/docker.sock
我在Ubuntu中通過Nix安裝了Docker 17.12.0-ce
( Linux uplink 4.13.0-36-generic #40~16.04.1-Ubuntu SMP Fri Feb 16 23:25:58 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
),但是每次我嘗試執行任何Docker命令時,它都會告訴我: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
。
這就是我做的:
$ nix-env --install --prebuilt-only docker-17.12.0-ce
$ nix-env -q
docker-17.12.0-ce
go-1.9.4
hugo-0.32.2
kotlin-1.2.21
nix-1.11.16
nodejs-8.9.4
openjdk-8u172b02
openjdk-9.0.4-b11
$ docker version
Client:
Version: 17.12.0-ce
API version: 1.35
Go version: go1.9.4
Git commit: 486a48d2701493bb65385788a291e36febb44ec1
Built: Thu Feb 15 13:56:40 2018
OS/Arch: linux/amd64
Experimental: false
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
$ docker ps -a
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
我閱讀了Linux的安裝后步驟 (盡管這在某種程度上不適用於Nix軟件包)並繼續添加了一個docker
用戶和所有這些東西......但仍然沒有。
我知道這個問題有很多答案 - 我已經嘗試了幾個“解決方案”......但是還沒有運氣。
在非NixOS發行版上安裝軟件包時,不會設置服務(如守護程序)。 服務由NixOS模塊創建,因此它們需要NixOS。
例如,在Docker的情況下,守護進程是通過設置systemd服務創建的。 NixOS 模塊的片段如下所示:
...
options.virtualisation.docker = {
enable =
mkOption {
type = types.bool;
default = false;
description =
''
This option enables docker, a daemon that manages
linux containers. Users in the "docker" group can interact with
the daemon (e.g. to start or stop containers) using the
<command>docker</command> command line tool.
'';
};
...
systemd.services.docker = {
wantedBy = optional cfg.enableOnBoot "multi-user.target";
environment = proxy_env;
serviceConfig = {
ExecStart = [
""
''
${cfg.package}/bin/dockerd \
--group=docker \
--host=fd:// \
--log-driver=${cfg.logDriver} \
${optionalString (cfg.storageDriver != null) "--storage-driver=${cfg.storageDriver}"} \
${optionalString cfg.liveRestore "--live-restore" } \
${cfg.extraOptions}
''];
ExecReload=[
""
"${pkgs.procps}/bin/kill -s HUP $MAINPID"
];
};
...
您可以在其他發行版上完成等效操作,但您必須手動創建服務和配置文件。
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