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

Question

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 registry  I just want to list the tags

User · Answer

You can list all the tags with skopeo and jq for json parsing through cli   skopeo --override-os linux inspect docker   httpd   jq   RepoTags        quot 2-alpine quot      quot 2 2-alpine quot      quot 2 2 29 quot      quot 2 2 31-alpine quot      quot 2 2 31 quot      quot 2 2 32-alpine quot      quot 2 2 32 quot      quot 2 2 34-alpine quot      quot 2 2 34 quot      quot 2 2 quot      quot 2 4-alpine quot      quot 2 4 10 quot      quot 2 4 12 quot      quot 2 4 16 quot      quot 2 4 17 quot      quot 2 4 18 quot      quot 2 4 20 quot      quot 2 4 23-alpine quot      quot 2 4 23 quot      quot 2 4 25-alpine quot      quot 2 4 25 quot      quot 2 4 27-alpine quot      quot 2 4 27 quot      quot 2 4 28-alpine quot      quot 2 4 28 quot      quot 2 4 29-alpine quot      quot 2 4 29 quot      quot 2 4 32-alpine quot      quot 2 4 32 quot      quot 2 4 33-alpine quot      quot 2 4 33 quot      quot 2 4 34-alpine quot      quot 2 4 34 quot      quot 2 4 35-alpine quot      quot 2 4 35 quot      quot 2 4 37-alpine quot      quot 2 4 37 quot      quot 2 4 38-alpine quot      quot 2 4 38 quot      quot 2 4 39-alpine quot      quot 2 4 39 quot      quot 2 4 41-alpine quot      quot 2 4 41 quot      quot 2 4 43-alpine quot      quot 2 4 43 quot      quot 2 4 quot      quot 2 quot      quot alpine quot      quot latest quot     For external registries  skopeo --override-os linux inspect --creds username password docker    lt registry-url gt   lt repo gt   lt image gt    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

User · Answer

If you want to use the docker registry v2 API  it lists tags by pages  To list all the tags of an image  you may would like to add a large page size parameter to the url  e g   curl -L -s  https   registry hub docker com v2 repositories library centos tags page size 1024  jq    results     name

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Get all tags from Docker Hub  this command uses the command-line JSON processor jq to select the tag names from the JSON returned by the Docker Hub Registry  the quotes are removed with tr   Replace library with the Docker Hub user name  debian with the image name   curl -s  https   registry hub docker com v2 repositories library debian tags     jq -r    results     name

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The Docker V2 API requires an OAuth bearer token with the appropriate claims  In my opinion  the official documentation is rather vague on the topic  So that others don t go through the same pain I did  I offer the below docker-tags function   The most recent version of docker-tags can be found in my GitHubGist    List Docker Image Tags using bash     The docker-tags function has a dependency on jq   If you re playing with JSON  you likely already have it      usr bin env bash docker-tags         arr             for item in    arr           do         tokenUri  https   auth docker io token          data   service registry docker io   scope repository  item pull           token    curl --silent --get --data-urlencode   data 0   --data-urlencode   data 1    tokenUri   jq --raw-output   token            listUri  https   registry-1 docker io v2  item tags list          authz  Authorization  Bearer  token          result    curl --silent --get -H  Accept  application json  -H  Authorization  Bearer  token   listUri   jq --raw-output               echo  result     done     Example  docker-tags  microsoft nanoserver   microsoft dotnet   library mongo   library redis    Admittedly  docker-tags makes several assumptions  Specifically  the OAuth request parameters are mostly hard coded  A more ambitious implementation would make an unauthenticated request to the registry and derive the OAuth parameters from the unauthenticated response

User · Answer

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  lt  lt  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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Here s a Powershell script I wrote for Windows  Handles v1 and v2 repos   Get-DockerImageVersions ps1   param      Parameter  Mandatory  true   ImageName     Parameter  Mandatory  false   RegistryURL    if    RegistryURL        RegistryURL    https   registry hub docker com v1 repositories      list      if   RegistryURL -like   v2          list     list      URL     RegistryURL  ImageName tags list   write-debug  URL  resp   Invoke-WebRequest -UseBasicParsing  URL   ConvertFrom-Json  if   RegistryURL -like   v2          tags    resp   select tags    tags tags   else      tags    resp   select name    tags name

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You can also use this scrap      vim  usr sbin docker-tags     amp  Append Following  as it is       bin bash im   1     -z   im      amp  amp    echo -e   e 31m -  e 39m Where is the image name       exit        -z    echo   im   grep -o           amp  amp    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   gt     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   gt    testexampleidontexist      docker search ubuntu    docker-tags teamrock ubuntu    latest     Hope you are aware of    amp    before running any command

User · Answer

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  lt uuid gt

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As of Docker Registry V2  a simple GET suffice   GET  v2  lt name gt  tags list   See docs for more

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curl -u  lt username gt   lt password gt  https    your registry v2  image name tags list -s -o -         tr -d       tr -d       sed -e  s       g  -e  s    g  -e  s    g          awk -F    print  3     sed -e  s    n g    You can use it if your env has no  jq

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I ve managed to get it working using curl  curl -u  lt username gt   lt password gt  https   myrepo example v1 repositories  lt username gt   lt image name gt  tags  Note that image name should not contain user details etc  For example if you re pushing image named myrepo example username x then image name should be x

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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    lt html gt   lt pre style  background-color  bcbbbb   gt   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    lt  pre gt   lt  html gt    So in this we can give arguments to out batch file like  Dockerfile java version7

User · Answer

You can use  skopeo inspect docker    lt REMOTE REGISTRY gt  --authfile  lt PULL SECRET gt    jq  RepoTags

User · Answer

Building on Yan Foto s answer  the v2 api   I created a simple Python script to list the tags for a given image   Usage     docker-registry-list py alpine   Output        name    library alpine      tags          2 6        2 7        3 1        3 2        3 3        3 4        3 5        3 6        3 7        edge        latest

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See CLI utility  https   www npmjs com package docker-browse  Allows enumeration of tags and images   docker-browse tags  lt image gt  will list all tags for the image  e g  docker-browse tags library alpine  docker-browse images will list all images in the registry  Not currently available for index docker io   You may connect it to any registry  including your private one  so long as it supports Docker Registry HTTP API V2

User · Answer

In powershell 5 1  I have a simple list docker image tags ps1 script like this    CmdletBinding    param        Parameter Mandatory    true        string       image     url    https   registry hub docker com v1 repositories  0  tags  -f  image  Invoke-WebRequest  url    ConvertFrom-Json   Write-Output   Then I can grep for 4 7 tags like this     list docker image tags ps1 microsoft dotnet-framework         name -match  4 7

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If folks want to read tags from the RedHat registry at https   registry redhat io v2 then the steps are      example nodejs-12 image IMAGE STREAM nodejs-12 REDHAT REGISTRY API  https   registry redhat io v2 rhel8  IMAGE STREAM    Get an oAuth token based on a service account username and password https   access redhat com articles 3560571 TOKEN   curl --silent -u   REGISTRY USER    REGISTRY PASSWORD   https   sso redhat com auth realms rhcc protocol redhat-docker-v2 auth service docker-registry amp client id curl amp scope repository rhel pull     jq --raw-output   token     Grab the tags wget -q --header  Accept  application json  --header  Authorization  Bearer  TOKEN  -O -   REDHAT REGISTRY API tags list    jq -r    tags        If you want to compare what you have in your local openshift registry against what is in the upstream registry redhat com then here is a complete script

User · Answer

You can achieve by running on terminal this   curl -L -s  https   registry hub docker com v2 repositories library mysql tags     jq     grep name   Also  if you don t have jq you have to install it by   sudo apt-get install jq

User · Answer

If the JSON parsing tool  jq is available  wget -q https   registry hub docker com v1 repositories debian tags -O -         jq -r      name

User · Answer

To view all available tags in a browser   https   registry hub docker com v1 repositories  lt username gt   lt image name gt  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

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

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