Photo by Aron Yigin on Unsplash Something you can likely conclude from my previous articles is that I prefer using the command line interface whenever possible. Admittedly, there have been times where I have worked even harder to use the command line. One such occasion was my introduction to , in which we used Visual Studio Code and the terminal to run the . R article R script It would have been much easier to use something like RStudio , which we did for graphs, but nothing wrong with learning a little command line now and then. In case you are new to Docker or need a refresher, it is a containerization tool. The goal of containers is a form of the “divide and conquer” concept. Usually, you would just use the stand-alone interface. However, I found that Docker also supports a command-line interface. What was difficult to find was any range of documentation on it. In fact, there was very little. With that in mind, I figured I would mess around with the commands and jot down my findings in hopes someone may find them useful in the future. As an important note, Hub-Tool is more experimental at this point in time, but still worth a look. Installing Docker Hub-Tool Before we can start, we will need to install the . hub-tool This is assuming you already have a Docker account and have Docker installed as well. Navigate to Github for the Hub-Tool download: Download the package for your system. In my case, it is the for Linux. Once downloaded, unzip the tar file. Now that it is unzipped, we can go navigate to the directory via the command line. While in the directory, we can run the help to see our options. amd64 hub-tool ./hub-tool --help Note, before getting started anywhere else, we will need to log onto our Docker account. Running other commands will throw an error asking for an account. We can log in by using the following: ./hub-tool login Now we can go down the line and learn about each option. To gain information about the account, such as the owner’s name, the plan, the limits, joined date, etc., use the following command: ./hub-tool account info For the rate-limiting information on the account, use the following: ./hub-tool account rate-limiting Next down the list is the help feature, which we previously used. Just note that instead of “ — help”, you could instead simply use “help” for the list of commands. The next command on the list was login, which we also used. Next, logout, which we will use at the end. On the list after logout is org. ./hub-tool org Org is used to list the organizations. To list the basics, use the ls command like such: ./hub-tool org ls To list something more specific, you can use “org members” or “org teams”. To do so you would use commands such as: ./hub-tool org members <MemberName> Or: ./hub-tool org teams <TeamName> Because I have none set up currently, there is nothing to search for. The next thing we can do is list the repositories: ./hub-tool repo As you can see, we can first list our repositories: ./hub-tool repo ls Another option is we can remove a repository with the following: ./hub-tool repo rm <RepositoryName> I will not run this for now, as I have none that I want to delete for now. The next command we can review is how to manage tags: ./hub-tool tag We can now list the tags for a repository. You will need the name of the repository to review: ./hub-tool tag ls <RepositoryName> Next with tags, we can inspect those in a repository. This includes data such as where it manifests, the configuration, and the layers. This one will not include a screenshot, as it includes private paths and information. ./hub-tool tag inspect <RepositoryName> As well as the others we previously used, we can also use the remove command with the repository name. ./hub-tool tag rm <RepositoryName> Next, there is a token command, where we can manage the personal access tokens: ./hub-tool token We will first need to create a token: ./hub-tool token create With a token created, we can review them using a list: ./hub-tool token ls Next, we can inspect the specifics on that token: ./hub-tool token inspect <TokenName> As we saw the active was true, we could deactivate the token if desired: ./hub-tool token deactivate <TokenName> If we do want the token reactivated, we can also do that using a similar command: ./hub-tool token activate <TokenName> Like with everything else, we could also use the remove option when the token is no longer needed. This action takes username authentication as well. ./hub-tool token rm <TokenName> Another option is the version option. It will display the version of Docker, as well as the Git commit: ./hub-tool version Note, you could use “- -version” instead of “version. The final option is the logout option: ./hub-tool logout Conclusion Although this list is inclusive, it is not entirely detailed and contains only brief overviews of each option. However, I feel it brings a little more clarity to options that do not have a variety of documentation. I hope you found my examples and summaries useful. Even though the Docker interface is strong and useful, for managing repositories I could see myself this CLI again. Although there are not very many options currently, I enjoyed diving in and learning more about the Docker Until next time, cheers! Hub-tool. References: https://www.docker.com/blog/docker-hub-experimental-cli-tool/ https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-16-04 https://www.docker.com/resources/what-container https://www.infoworld.com/article/3204171/what-is-docker-the-spark-for-the-container-revolution.html https://github.com/docker/hub-tool/releases This article was first published here.

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Ship With the Docker Hub CLI Tool

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