Install packages in Alpine docker

Question

How do I write Dockerfile commands to install the following in alpine docker image:

1. software-properties-common
2. openjdk-8-jdk
3. python3
4. nltk
5. Flask

Solution

The equivalent of apt or apt-get in Alpine is apk

A typical Dockerfile will contain, for example:

RUN apk add --no-cache wget

--no-cache is the equivalent to: apk add wget && rm -rf /var/cache/apk/*

or, before the --no-cache option was available:

RUN apk update && apk add wget

Alpine rm -rf /var/cache/apk/* has the Debian equivalent rm -rf /var/lib/apt/lists/*.

See the Alpine comparison with other distros for more details.

Comments

[jww]

Stack Overflow is a site for programming and development questions. This question appears to be off-topic because it is not about programming or development. See What topics can I ask about here in the Help Center. Perhaps Super User or Unix & Linux Stack Exchange would be a better place to ask.

[PaulNUK]

This is on topic as its a programming question about writing docker files.

[thaJeztah]

Recent versions of alpine also allow you to use the --no-cache option; using that option, no /var/cache files are created, and it will automatically run update. So the equivalent to your example would be apk add --no-cache wget

[thaJeztah]

Also upvoted to compensate for the mysterious down vote :)