docker - 如何使用 dockerfile 添加用户？

Question

如何使用 Dockerfile 添加用户 - 以下操作不起作用。

USER vault
WORKDIR /usr/local/bin/vault

我的完整 Dockerfile:

FROM alpine:3.4
RUN apk update && apk add curl unzip
RUN useradd -ms /bin/bash vault

USER vault
WORKDIR /usr/local/bin/vault
ADD /vault.hcl /etc/vault/vault.hcl

RUN curl -SL https://releases.hashicorp.com/vault/0.5.0/vault_0.5.0_linux_amd64.zip > vault.zip
RUN unzip vault.zip -d /usr/local/bin && rm vault.zip

Answer 1

使用 useradd 而不是它的交互式 adduser 来添加用户。

RUN useradd -ms /bin/bash  vault

以下命令不会创建用户。

USER vault
WORKDIR /usr/local/bin/vault

它将使用 vault 用户

请引用 Dockerfile User Documentation

The USER instruction sets the user name or UID to use when running the image and for any RUN, CMD and ENTRYPOINT instructions that follow it in the Dockerfile.

注意:确保 bash 是默认 shell。

如果默认 shell 是 /bin/sh 你可以这样做:

RUN ln -sf /bin/bash /bin/sh
RUN useradd -ms /bin/bash  vault