docker - 在安装全局模块后在 Docker 中找不到模块

Question

我创建了一个简单的 Dockerfile 来全局安装一些节点工具。

FROM node:10.9.0
RUN npm -g config set user root
RUN npm -g install --unsafe-perm merge-yaml
RUN mkdir -p /workDirectory
WORKDIR /workDirectory

构建图像我希望 merge-yaml 将在任何路径上可用(全局)

docker build -t  thisisme/devtools .

但是使用 as exec 找不到命令

docker run --rm -it -v ${PWD}:/workDirectory thisisme/devtools merge-yaml

docker: Error response from daemon: oci runtime error: container_linux.go:247: starting container process caused "exec: \"merge-yaml\": executable file not found in $PATH".

如果我进入容器并验证模块未全局添加:

docker run --rm -it  thisisme/devtools /bin/bash
root@e77027bb2f57:/workDirectory# merge-yaml
bash: merge-yaml: command not found

我确定我做错了，因为在交互模式下全局安装并且不起作用(如我所料)

root@e77027bb2f57:/workDirectory# npm install -g merge-yaml
+ merge-yaml@1.1.0
updated 1 package in 0.584s
root@e77027bb2f57:/workDirectory# merge-yaml
bash: merge-yaml: command not found
root@e77027bb2f57:/workDirectory# 

提前致谢

Answer 1

如果你想使用命令行，那么你应该安装merge-yaml-cli反而。
Dockerfile:

FROM node:10.9.0
RUN npm -g config set user root
RUN npm -g install --unsafe-perm merge-yaml-cli
RUN mkdir -p /workDirectory
WORKDIR /workDirectory

构建镜像后，merge-yaml 将可用:

user@term:~/work $ docker run --rm -it quentin/test merge-yaml
Usage: /usr/local/bin/merge-yaml <options>

Options:
  -i, --inputs  Input files specified as glob file patterns   [array] [required]
  -o, --output  Output file                                  [string] [required]

Examples:
  /usr/local/bin/merge-yaml -i one.yml two/*.yml -o out.yml

Missing required arguments: i, o