Início / unix / Perguntas / 509110
Accepted
Tim
Asked: 2019-03-28 17:49:35 +0800 CST

Como posso instalar um pacote em um contêiner do Docker Ubuntu?

  • 772

Eu uso a imagem padrão do Ubuntu Docker baixada. Eu quero encontrar as interfaces de rede e endereços IP em seu contêiner , então gostaria de instalar o pacote que contém ifconfig, mas por que falho? Obrigado.

$ sudo docker run  ubuntu apt update

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

Get:1 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Get:2 http://security.ubuntu.com/ubuntu bionic-security/universe amd64 Packages [160 kB]
Get:3 http://archive.ubuntu.com/ubuntu bionic InRelease [242 kB]
Get:4 http://security.ubuntu.com/ubuntu bionic-security/restricted amd64 Packages [5436 B]
Get:5 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages [361 kB]
Get:6 http://archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:7 http://security.ubuntu.com/ubuntu bionic-security/multiverse amd64 Packages [3910 B]
Get:8 http://archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:9 http://archive.ubuntu.com/ubuntu bionic/main amd64 Packages [1344 kB]
Get:10 http://archive.ubuntu.com/ubuntu bionic/multiverse amd64 Packages [186 kB]
Get:11 http://archive.ubuntu.com/ubuntu bionic/universe amd64 Packages [11.3 MB]    
Get:12 http://archive.ubuntu.com/ubuntu bionic/restricted amd64 Packages [13.5 kB]
Get:13 http://archive.ubuntu.com/ubuntu bionic-updates/restricted amd64 Packages [10.8 kB]
Get:14 http://archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [955 kB]
Get:15 http://archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [725 kB]
Get:16 http://archive.ubuntu.com/ubuntu bionic-updates/multiverse amd64 Packages [6968 B]
Get:17 http://archive.ubuntu.com/ubuntu bionic-backports/universe amd64 Packages [3659 B]
Get:18 http://archive.ubuntu.com/ubuntu bionic-backports/main amd64 Packages [942 B]
Fetched 15.6 MB in 27s (571 kB/s)
Reading package lists...
Building dependency tree...
Reading state information...
5 packages can be upgraded. Run 'apt list --upgradable' to see them.

e

$ sudo docker run  ubuntu apt upgrade

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

Reading package lists...
Building dependency tree...
Reading state information...
Calculating upgrade...
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

e

$ sudo docker run -it ubuntu  apt install net-tools
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package net-tools
docker package-management

1 respostas

  1. Best Answer

    Cada docker runcomando executa um contêiner separado, para que os efeitos de seus comandos não persistam para o próximo docker run:

    Execute um processo em um novo contêiner. docker runinicia um processo com seu próprio sistema de arquivos, sua própria rede e sua própria árvore de processos isolada.

    Você precisa combinar todos os seus comandos:

    docker run -it ubuntu /bin/sh -c 'apt update && apt upgrade -y && apt install -y net-tools'

    adicionando quaisquer comandos que você deseja executar net-tools.

    Pode valer a pena escrever um Dockerfileem vez disso.

    • 2

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