Docker Tag Yoinker

Sometimes, you just want to yoink the latest tag of a docker image, but :latest is too Basic for you.

dty (docker-tag-yoinker) is here to help.

Simply set up a config file, and the binary will auto-yoink the latest tag that satisfies your rules.

Example

TOML Config:

image = "sourcegraph/server"
blacklist = ["insiders", "rc"]

This will pull the latest tag from https://hub.docker.com/r/sourcegraph/server/tags that doesn't have "insiders" or "rc" in it and print it to STDOUT.

Usage in shell scripts.

export TAG=$(dty -config sourcegraph.toml)
docker run --name sourcegraph \
      --restart=always -d --publish 8220:7080 --publish 2633:2633 \
      --volume ~/.sourcegraph/config:/etc/sourcegraph  \
      --volume ~/.sourcegraph/data:/var/opt/sourcegraph  \
      sourcegraph/server:$TAG \

This can be run inside a cron job, wired up to https://healthchecks.io/ or equivalent.