chentex/random-logger repository overview

⁠random-logger

Docker image for a random log generator, based on Alpine Linux.

⁠What is this?

This image will execute a container which will generate four random log messages:

• 2018-03-02T22:33:27-06:00 ERROR something happened in this execution.
• 2018-03-02T22:33:27-06:00 INFO takes the value and converts it to string.
• 2018-03-02T22:33:27-06:00 WARN variable not in use.
• 2018-03-02T22:33:27-06:00 DEBUG first loop completed.

⁠Why this Image?

I've had the necessity to create a random logger to test log configurations with containers, this helped me out to do it easily.

⁠What is inside of this repo?

In this git repository you will find the docker image definitions for the random Logger for Alpine Linux

• Dockerfile -> Contains image definition.
• entrypoint.sh -> Shell code to generate log messages.

⁠How do I use this image?

To use this image you must do as follows:

# you can use tags latest
docker pull chentex/random-logger:latest

# use different intervals to print logs every random(100, 400) milliseconds
docker run chentex/random-logger:latest 100 400

# use the third parameter so limit the number of loglines (after generating the lines the container will stop).
# if not set it runs infinite
docker run chentex/random-logger:latest 100 400 100

# to run the image just execute
docker run -d chentex/random-logger:latest

You will have now a docker container running and generating log messages, locate it running:

docker ps

You can see the logs using this command

docker logs <- container-id ->

⁠How do I build this images?

First things first, you can find these docker images in chentex/random-logger but you can also build a specific version on your own, you only need:

• docker
• git

Clone this repo

git clone https://github.com/chentex/random-logger.git

Go to the folder in your terminal and type this:

# cd into folder
cd random-logger
# Then build the new image
docker build -f Dockerfile .

If you want to tag your image use the following command

docker build -f Dockerfile -t yourbase/yourname:version .

For more on docker build reference to the Documentation⁠

You can get the source from the image in the Repository⁠