blog

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Docker

Get Docker CE for Ubuntu(16.04)

install-docker-based-on-ubuntu-16.04.sh

Build the app

Dockerfile app.py requirements.txt

We are ready to build the app. Make sure you are still at the top level of your new directory. Here’s what ls should show:

peter@peter-VirtualBox:~/work/src/blog/code_for_post/docker/friendlyhello$ ll
total 20
drwxrwxr-x 2 peter peter 4096 9月  15 16:43 ./
drwxrwxr-x 3 peter peter 4096 9月  15 16:42 ../
-rw-rw-r-- 1 peter peter  665 9月  15 16:34 app.py
-rw-rw-r-- 1 peter peter  482 9月  15 16:33 Dockerfile
-rw-rw-r-- 1 peter peter   12 9月  15 16:34 requirements.txt

Now run the build command. This creates a Docker image, which we’re going to tag using -t so it has a friendly name.

docker build -t friendlyhello .

Where is your built image? It’s in your machine’s local Docker image registry:

docker images

Reference

Containers