docker login private registry

Generate User and Password for Private Docker Registry

Execute openssl from folder : /mnt/d/localhub

Run the Docker Registry

Verify registry container started

Verify private registry login using user and password from STEP 1

Test the use of your private registry

Postman confirmation that vir_report is now in your private registry – YAY!!!

Also verify they are available on the local file system

Also works via browser

*** GOTCHA ***

For some reason, the htpasswd file is not working, so I had to get the registry password from the container logs

curl https://earnhardt-docker.duckdns.org/v2/_catalog
** Notice how Authorization is needed even with curl **
{"errors":[{"code":"UNAUTHORIZED","message":"authentication required","detail":[{"Type":"registry","Class":"","Name":"catalog","Action":"*"}]}]}

# You need to get the password from the container logs
# Here are two possible ways to get container logs:
1. From boomer-unraid:

   ssh root@boomer-unraid
   docker logs $(docker ps|grep registry|awk {'print $1'}) 2>&1|grep password|sed 's/.*password=/password=/g'"

   password="OXjyjUiyA**************zabkJFs" user=docker

2. From windows:
   
   plink -ssh root@boomer-unraid "docker logs $(docker ps|grep registry|awk {'print $1'}) 2>&1|grep password|sed 's/.*password=/password=/g'"

   -| Password:
   - Keyboard-interactive authentication prompts from server: ------------------
   -Access granted. Press Return to begin session.
   - End of keyboard-interactive prompts from server ---------------------------
   password="OXjyjUiyA*********zabkJFs" user=docker

--------------------------------------------------------------------------------
# Check the login:
docker login https://earnhardt-docker.duckdns.org
Username: docker
Password: OXjyjUiyA*********zabkJFs
Login Succeeded

# Use with curl:
curl -u docker:OXjyjUiyAVZXPSgdeJPLZr_Mw3PEGvUpXtShzabkJFs https://earnhardt-docker.duckdns.org/v2/_catalog
{"repositories":["adhoc/vir_report","earnhardt/ps-perl","wordpress"]}
--------------------------------------------------------------------------------

* windows: get_docker-regpass.cmd

Working Examples:
1. Get list of repositories
    curl -u docker:OXjyjUiyA**************zabkJFs https://earnhardt-docker.duckdns.org/v2/_catalog
    {"repositories":["adhoc/vir_report","earnhardt/ps-perl","wordpress"]}

2. Show tags for repository
    curl -u docker:OXjyjUiyA**************zabkJFs -X GET https://earnhardt-docker.duckdns.org/v2/wordpress/tags/list
    {"name":"wordpress","tags":["latest"]}

    curl -u docker:OXjyjUiyA**************zabkJFs -X GET https://earnhardt-docker.duckdns.org/v2/earnhardt/ps-perl/tags/list
    {"name":"earnhardt/ps-perl","tags":["v1"]}

    curl -u docker:OXjyjUiyA**************zabkJFs -X GET https://earnhardt-docker.duckdns.org/v2/adhoc/vir_report/tags/list
    {"name":"adhoc/vir_report","tags":["latest"]}

3. Pull a repository from registry
    docker pull earnhardt-docker.duckdns.org/earnhardt/ps-perl:v1
    v1: Pulling from earnhardt/ps-perl
    25ac27cfe874: Pull complete
    4705e5604283: Pull complete
    b1b1a3da7d3f: Pull complete
    d747e8313c8a: Pull complete
    53d9ee195005: Pull complete
    Digest: sha256:e927042e82e8af2b1425708354f5d918be8b909f1a4445f8fa1207cae666c73f
    Status: Downloaded newer image for earnhardt-docker.duckdns.org/earnhardt/ps-perl:v1
    earnhardt-docker.duckdns.org/earnhardt/ps-perl:v1

4. List the images
   docker images
   REPOSITORY                                       TAG           IMAGE ID       CREATED         SIZE
   earnhardt-docker.duckdns.org/earnhardt/ps-perl   v1            e927042e82e8   4 years ago     201MB

5. Extract image:
   docker save earnhardt-docker.duckdns.org/earnhardt/ps-perl:v1 --output earnhardt_ps-perl_v1.tar
   # Check for output:
   E:\work\myDocker>ls
   Volume in drive E is New Volume
   Volume Serial Number is 647D-66FE
   Directory of E:\work\myDocker
   03/17/2025  02:47 PM    <DIR>          .
   03/14/2025  12:07 PM    <DIR>          ..
   03/17/2025  02:47 PM        51,981,312 earnhardt_ps-perl_v1.tar