如何从 dockerfile 启动 mongodb [英] How to start mongodb from dockerfile

问题描述

我正在构建一个 dockerfile.但是我遇到了一个问题.它说:

I'm building a dockerfile. But I meet a problem. It says that :

/bin/sh: 1: mongod: 未找到

/bin/sh: 1: mongod: not found

我的 dockerfile:

My dockerfile:

FROM mongo:latest
FROM node

RUN mongod

COPY . .
RUN node ./scripts/import-data.js

这是 docker build 时发生的情况:

Here is what happen when docker build:

Sending build context to Docker daemon  829.5MB
Step 1/8 : FROM rabbitmq
 ---> e8261c2af9fe
Step 2/8 : FROM portainer/portainer
 ---> 00ead811e8ae
Step 3/8 : FROM docker.elastic.co/elasticsearch/elasticsearch:6.5.1
 ---> 32f93c89076d
Step 4/8 : FROM mongo:latest
 ---> 5976dac61f4f
Step 5/8 : FROM node
 ---> b074182f4154
Step 6/8 : RUN mongod
 ---> Running in 0a4b66a77178
/bin/sh: 1: mongod: not found
The command '/bin/sh -c mongod' returned a non-zero code: 127

有什么想法吗?

推荐答案

问题是您使用了两个 FROM 指令，称为 多阶段构建.最终图像将基于不包含 mongo 数据库的 node 图像.

The problem is that you are using two FROM instructions, which is referred to as a multi-stage build. The final image will be based on the node image that doesn't contain the mongo database.

* 编辑 *

这里有更多关于正在发生的事情的细节:

here are more details about what is happening:

来自 mongo:latest

FROM mongo:latest

• 基础镜像是 mongo:latest

来自节点

• 现在基础镜像是node:latest.上一张图片只是站在那里...
• now the base image is node:latest. The previous image is just standing there...

运行 mongod

复制..

运行节点./scripts/import-data.js

RUN node ./scripts/import-data.js

• 现在您在基于 node(不包含 mongo)的最终图像中运行 mongod 和其他命令
• now you run mongod and the other commands in your final image that is based on node (which doesn't contain mongo)

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