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How can I list all tags for a Docker image on a remote registry?

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时光取名叫无心
时光取名叫无心 2020-12-04 04:46

How can I list all tags of a Docker image on a remote Docker registry using the CLI (preferred) or curl?

Preferably without pulling all versions from the remote regi

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  • 有刺的猬
    2020-12-04 05:04

    You can also use this scrap :

    # vim /usr/sbin/docker-tags

    & Append Following (as it is):

    #!/bin/bash
im="$1"
[[ -z "$im" ]] && { echo -e '\e[31m[-]\e[39m Where is the image name ??' ; exit ; }
[[ -z "$(echo "$im"| grep -o '/')" ]] && { link="https://hub.docker.com/r/library/$im/tags/" ; } || { link="https://hub.docker.com/r/$im/tags/" ; }
resp="$(curl -sL "$link")"
err="$(echo "$resp" | grep -o 'Page Not Found')"
if [[ ! -z "$err" ]] ; then
    echo -e "\e[31m[-]\e[39m No Image Found with name => [ \e[32m$im\e[39m ]"
    exit
else
    tags="$(echo "$resp"|sed  -e 's|}|\n|g' -e 's|{|\n|g'|grep '"result"'|sed -e 's|,|\n|g'|cut -d '[' -f2|cut -d ']' -f1|sed  '/"tags":/d'|sed -e 's|"||g')"
    echo -e "\e[32m$tags\e[39m"
fi

    Make it Executable :

    # chmod 755 /usr/sbin/docker-tags

    Then Finally Try By :

    $ docker-tags testexampleidontexist
   [-] No Image Found with name => [ testexampleidontexist ]

$ docker search ubuntu

$ docker-tags teamrock/ubuntu
   latest

    [ Hope you are aware of $ & # before running any command ]

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  • 爱一瞬间的悲伤
    2020-12-04 05:04

    I have done this thing when I have to implement a task in which if user somehow type the wrong tag then we have to give the list of all the tag present in the repo(Docker repo) present in the register. So I have code in batch Script.

    <html>
<pre style="background-color:#bcbbbb;">
@echo off

docker login --username=xxxx --password=xxxx
docker pull %1:%2

IF NOT %ERRORLEVEL%==0 (
echo "Specified Version is Not Found "
echo "Available Version for this image is :"
for /f %%i in (' curl -s -H "Content-Type:application/json" -X POST -d "{\"username\":\"user\",\"password\":\"password\"}" https://hub.docker.com/v2/users/login ^|jq -r .token ') do set TOKEN=%%i
curl -sH "Authorization: JWT %TOKEN%" "https://hub.docker.com/v2/repositories/%1/tags/" | jq .results[].name
)
</pre>
</html>

    So in this we can give arguments to out batch file like: 

    Dockerfile java version7

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  • 一个人的身影
    2020-12-04 05:08

    The Docker Registry API has an endpoint to list all tags.

    Looks like Tutum has a similar endpoint, as well as a way to access via tutum-cli.

    With the tutum-cli, try the following:

    tutum tag list <uuid>
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  • 盖世英雄少女心
    2020-12-04 05:11

    I got the answer from here . Thanks a lot! :)

    Just one-line-script:(find all the tags of debian)

    wget -q https://registry.hub.docker.com/v1/repositories/debian/tags -O -  | sed -e 's/[][]//g' -e 's/"//g' -e 's/ //g' | tr '}' '\n'  | awk -F: '{print $3}'

    UPDATE Thanks for @degelf's advice. Here is the shell script.

    #!/bin/bash

if [ $# -lt 1 ]
then
cat << HELP

dockertags  --  list all tags for a Docker image on a remote registry.

EXAMPLE: 
    - list all tags for ubuntu:
       dockertags ubuntu

    - list all php tags containing apache:
       dockertags php apache

HELP
fi

image="$1"
tags=`wget -q https://registry.hub.docker.com/v1/repositories/${image}/tags -O -  | sed -e 's/[][]//g' -e 's/"//g' -e 's/ //g' | tr '}' '\n'  | awk -F: '{print $3}'`

if [ -n "$2" ]
then
    tags=` echo "${tags}" | grep "$2" `
fi

echo "${tags}"

    You can just create a new file name, dockertags, under /usr/local/bin (or add a PATH env to your .bashrc/.zshrc), and put that code in it. Then add the executable permissions(chmod +x dockertags).

    Usage:

    dockertags ubuntu ---> list all tags of ubuntu

    dockertags php apache ---> list all php tags php containing 'apache'

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  • 礼貌的吻别
    2020-12-04 05:11

    To view all available tags in a browser:

    https://registry.hub.docker.com/v1/repositories/<username>/<image_name>/tags

    i.e. https://hub.docker.com/r/localstack/localstack/tags

    Or, you can get a json response using this endpoint:

    https://registry.hub.docker.com/v1/repositories/localstack/localstack/tags

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  • 無奈伤痛
    2020-12-04 05:11

    You can list all the tags with skopeo and jq for json parsing through cli.

    skopeo --override-os linux inspect docker://httpd | jq '.RepoTags'

    [
  "2-alpine",
  "2.2-alpine",
  "2.2.29",
  "2.2.31-alpine",
  "2.2.31",
  "2.2.32-alpine",
  "2.2.32",
  "2.2.34-alpine",
  "2.2.34",
  "2.2",
  "2.4-alpine",
  "2.4.10",
  "2.4.12",
  "2.4.16",
  "2.4.17",
  "2.4.18",
  "2.4.20",
  "2.4.23-alpine",
  "2.4.23",
  "2.4.25-alpine",
  "2.4.25",
  "2.4.27-alpine",
  "2.4.27",
  "2.4.28-alpine",
  "2.4.28",
  "2.4.29-alpine",
  "2.4.29",
  "2.4.32-alpine",
  "2.4.32",
  "2.4.33-alpine",
  "2.4.33",
  "2.4.34-alpine",
  "2.4.34",
  "2.4.35-alpine",
  "2.4.35",
  "2.4.37-alpine",
  "2.4.37",
  "2.4.38-alpine",
  "2.4.38",
  "2.4.39-alpine",
  "2.4.39",
  "2.4.41-alpine",
  "2.4.41",
  "2.4.43-alpine",
  "2.4.43",
  "2.4",
  "2",
  "alpine",
  "latest"
]

    For external registries:

    skopeo --override-os linux inspect --creds username:password docker://<registry-url>/<repo>/<image> | jq '.RepoTags'

    Note: --override-os linux is only needed if you are not running on a linux host. For example, you'll have better results with it if you are on MacOS.

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