docker hub description updater

By specifying the login data for hub.docker.com you can update the short and long description of a docker repository.

Usage

Several options are available to update the descriptions. Either based on Markdown files or as a normal string, which is passed as argument when calling. The examples below describe two ways, the binary and container based way.

Example 1: Update full description of the repository with a Markdown file

dhdu \
  -user=<username> \
  -password=<password> \
  -namespace=<namespace> \
  -repository=<repository> \
  -full-description-file=./README.md

docker run \
  --rm \
  --volume $(pwd):/workspace \
    volkerraschek/dhdu \
      -user=<username> \
      -password=<password> \
      -namespace=<namespace> \
      -repository=<repository> \
      -full-description-file=./README.md

Example 2: Update full description of the repository over an argument

dhdu -user=<username> \
     -password=<password> \
     -namespace=<namespace> \
     -repository=<repository> \
     -full-description="My awesome description"

docker run \
  --rm \
  --volume $(pwd):/workspace \
    volkerraschek/dhdu \
      -user=<username> \
      -password=<password> \
      -namespace=<namespace> \
      -repository=<repository> \
      -full-description="My awesome description"

Compiling the source code

There are two different ways to compile dhdu from scratch. The easier ways is to use the pre-defined container image in the Makefile, which has included all dependancies to compile dhdu. Alternatively, if all dependencies are met, dhdu can also be compiled without the container image. Both variants are briefly described.

Compiling the source code via container image

To compile dhdu via container image it's necessary, that a container runtime is installed. In the Makefile is predefined docker, but it's can be also used podman. Execute make container-run/dhdu to start the compiling process.

make container-run/dhdu

Compiling the source code without container image

Make sure you have installed go >= v1.12. Execute make dhdu to compile dhdu without a container-image. There should be a similar output as when compiling dhdu via the container image.

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