• Install Npm In Docker Container
• Npm Install Not Working In Docker Container
• Docker Install Npm In Container Store

Prior to 8.7.0 and 6.11.4 the docker images overrode the default npm log level from warn to info. However due to improvements to npm and new Docker patterns (e.g. Multi-stage builds) the working group reached a consensus to revert the log level to npm defaults. If you need more verbose output, please use one of the following methods to change. Docker Image Installation (x64 only) Alternatively, you can install and run a Docker image within a Docker container. The first installation may take a long time to complete, but further updates will be much faster.

There are some situation where you want to copy files to and from a docker container so that we will have data accessabile in host system or within the container.

This can be achieved through multiple ways as listed below.

1. Through docker cp command
2. Through docker volumes

We will learn these two methods with some examples and explanations.

How to use docker cp command

Syntax:

Usage: docker cp [OPTIONS] CONTAINER:SRC_PATH DEST_PATH

docker cp [OPTIONS] SRC_PATH CONTAINER:DEST_PATH

So ‘docker cp’ command is similar to scp command.

Example: For copying a file(in this case a chef-server deb file) from the container we can use below command

First list available docker containers in your host:

Note: We can not retrieve files from a dead/exited docker container, your docker container need to be in running state.

Example output of “docker ps”

So my docker container is docker_chef-server and the file is chef-server* is located in /

Install Npm In Docker Container

Docker cp example to copy file from container to host machine.

Copy files using docker volumes

Docker volumes is nothing but a share between host machine and docker contain for persistent data. This is heavily used to make data persistent across container life cycle. If you have docker volumes attached to a container we can just use cp command to copy files from docker containers.

See if your container have volumes attached, we can use below.

Step1: Get container ID from ps from where you want to get file. This id is useful for inspecting the docker container properties.

docker ps

Output:

From the above output I can say my local folder which is mounted on docker is /Users/surendraanne/mymount.

To copy a file from docker container location /root/test, we have to just copy from my local directory/Users/surendraanne/mymount on host machine.

Output:

Please share if you know any other methods to copy files to and from docker container

Npm Install Not Working In Docker Container

Docker Install Npm In Container Store

• Docker: How to copy files to/from docker container - June 30, 2020
• Anisble: ERROR! unexpected parameter type in action: