Docktorino is a real-time continuous testing tool for your docker builds, helping you containerize with confidence!
When building Docker images it is sometimes tricky to assert the image behavior, for example, whether the contents of the image you built is correct, or that commands can execute correctly inside your container ( maybe you forgot to set your binary's PATH).
Docktrino makes these types of assertions easy to define when building your Docker images. It then listens to your Docker builds and triggers these tests on the spot to notify you if you have done something wrong, or if your container image is misbehaving.
Check blog post here.
To get started with Docktorino, you can download the corresponding binary for your OS (Darwin, Linux, Windows) from the releases section. Or you can clone this repository and build the project locally.
You need to install make and Go on your system before proceeding.
git clone https://github.com/zanetworker/docktorino.git
cd docktorino
# build docktorino binary if you have go installed
make OS=<darwin|linux|windows> install
# execute docktorino for command overview
docktorino
# build docktorino binary
make OS=<darwin|linux|windows> dry
# execute docktorino command for overview
./docktorinoThe binary is available on the releases section of this repo. Please note that it has been only tested on OSX.
Docktorino uses project Dockument to fetch important information about the image in questions, in particularly, testing info. an Example Dockerfile would look as follows:
FROM golang:alpine as builder
### Describe container tests based on container structure tests from google!
LABEL api.TEST.command=""\
api.TEST.command.name="go version"\
api.TEST.command.command="go"\
api.TEST.command.args="version"\
api.TEST.command.expectedOutput="go version"
# Add file and check it's contents!
LABEL api.TEST.fileExistence=""\
api.TEST.fileExistence.name="Dockumentation Check"\
api.TEST.fileExistence.path="/dockumentation.md"\
api.TEST.fileExistence.shouldExist="true"\
api.TEST.fileExistence.permissions=""
ADD dockumentation.md /dockumentation.md
# Assert that environment variables are correctly defined!
LABEL api.TEST.metadata=""\
api.TEST.metadata.env="GOPATH=/go,PATH=/go/bin:/usr/local/go/bin:$PATH"\
api.TEST.metadata.exposedPorts=""\
api.TEST.metadata.volumes=""\
api.TEST.metadata.cmd=""\
api.TEST.metadata.workdir=""
ENV PATH /go/bin:/usr/local/go/bin:$PATH
ENV GOPATH /go
This Dockerfile defines three tests:
- Command test to check the output of
go version. - a FileExistence tests to make sure that a document we add to the image is where it should be.
- a metadata tests to make sure that Environment variables are correctly defined within the image.
These tests styles are based on the GCP container-structure-tests project tests.
Currently there is only one command available, this command starts Docktorino for the image of choice. For example docktorino -i "repo/image:tag" will start listening for new builds for "repo/image:tag" and trigger the tests defined in the Dockerfile.
Usage:
docktorino start [flags]
Flags:
-h, --help help for start
-i, --image string the image you wish to trigger tests for
-q, --quiet quiet surpress output
-v, --verbose verbose testing output
Global Flags:
--home string location of your docktorino config. Overrides $DOCKTORINO_HOME (default "/Users/adelias/.Docktorino"
For a complete demo please check this demo video:
Please read CONTRIBUTING.md for details on our code of conduct, and the process for submitting pull requests to us.
See also the list of contributors who participated in this project.
This project is licensed under the Apache License - see the LICENSE file for details