dtags

dtags is a small binary retrieves a list of Docker repositories and Docker Image tags from various Docker registries.

Supported repositories

Name	URL	Tag List	Search
Docker Hub	https://index.docker.io	Y	Y
quay.io	https://quay.io	Y	Y
Google Container Registry	https://gcr.io	Y	N
Elastic Docker Registry	https://docker.elastic.co	Y	N
GitHub Container Registry	https://ghcr.io	Y	N
Amazon ECR Public Registry	https://public.ecr.aws	N	N

.. and many more that supports Docker Registry API v2 (https://docs.docker.com/registry/spec/api/)

Installation

Binary files

You can download binary files from release.

Homebrew

brew install bskim45/dtags/dtags

Install directly

# Installed to $HOME/.dtags/bin/dtags by default
$ curl -sfL https://raw.githubusercontent.com/bskim45/dtags/master/scripts/get.sh | sh -s

for additional options, run curl -sfL https://raw.githubusercontent.com/bskim45/dtags/master/scripts/get.sh | sh -s -- -h

Now, add $HOME/.dtags/bin to your $PATH.

Replace ~/.bash_profile according to your favorite shell. (~/.zshrc or ~/.bashrc)

echo 'export PATH="$HOME/.dtags/bin:$PATH"' >> ~/.bash_profile

Go

Please make sure your go/bin is in your $PATH. Mostly, Go bin path is ~/go/bin (MacOS/Linux), or %HOME%\go\bin (Windows). Also, you can find go binary path by $(go env GOPATH)/bin.

go get github.com/bskim45/dtags

Usage

$ dtags help

For those who are big fan of docker (also available in quay.io/bskim45/dtags):

$ docker run -it --rm bskim45/dtags tags bskim45/dtags
latest
1.0.0
...

Listing Tags

# official library images
# this is equivalent to 'dtags tags library/ubuntu'
$ dtags tags ubuntu
...
20.04
19.10
19.04
18.04
16.04
...

# normal repo, only last 5 tags (default 100)
$ dtags tags bskim45/helm-kubectl-jq -n 5
3.0.3
latest
3.0.2
3.0.1
3.0.0
...

# quay.io
$ dtags tags quay.io/bitnami/nginx -n 5
latest
1.16.1
1.16
1.16.1-debian-10-r13
1.16-debian-10

# gcr.io
$ dtags tags gcr.io/google_containers/busybox
latest
1.27.2
1.27
1.24

# elastic docker registry
$ dtags tags docker.elastic.co/elasticsearch/elasticsearch -n 5
master-SNAPSHOT
8.0.0-SNAPSHOT
7.x-SNAPSHOT
7.7.0-SNAPSHOT
7.6.0-SNAPSHOT

Search repository

# search against docker hub
$ dtags search
python
circleci/python
...

# search against quay.io
$ dtags search nginx --endpoint quay.io
kubernetes-ingress-controller/nginx-ingress-controller
bitnami/nginx
...

Contributing

This is my very first project written in Go. Please feel free to suggest any improvements.

License

This project are released under the MIT License