Have Fun Claim Control your Docker Image with Portus! Chapter 1

This article is a translated article from my article in openSUSE.id about Portus installation. So, in this article, i will write it in english.

So, before you learning about portus, you should know about docker and docker registry concept.

Docker Distribution (also known as Docker Registry) is a storage and distribution solution for your Docker images. It is the backend behind the Docker Hub and its open source. The fact that it is open source means that you can have your own Docker Registry on your own servers. This is really interesting for lots of different reasons, but one main thing to consider is that it delegates authorization to an “authorization service”.

Meanwhile, Portus is an open source authorized services and user interface for controlling your docker image. It’s one of an amazing project who being developed by openSUSE container team because last year portus are officially got into one of openSUSE project in Google Summer of Code (GSoC). a main job of portus is being an authorization service for your Docker registry.

Portus can be the perfect choice for managing your on premise instance of Docker Registry because it’s possible to have a full control for your docker images. Also, you can specify authorization for your Docker image against your team, is it can be an owner, contributor or just a viewer.

System Requirements

Before you go to next step, you should know about system review like topology and operating system that used. So, i will install portus as bare metal system. It’s mean i will install it on openSUSE Leap 42.3. Docker registry (Docker distribution) will be installed in same machine with portus.

Actually, we can build portus and registry using docker compose or vagrant for automated installation. But, i prefer to install it in openSUSE Leap 42.3 directly using portusctl command because the installation is not difficult and easy to understand.

192.168.2.131 – Docker registry and Portus
192.168.2.132 – Client have docker for testing

As requirement in Portus Documentation, we must use docker v1.6 or above. So, we will use Virtualization:containers repo for docker 1.6 higher and portus repo

Installation

For the first time, make sure you have install openSUSE 42.3 server. Then update and refresh your repository :

zypper ref
zypper up

Then add obs repo for Virtualization:containers and portus repo :

zypper ar -f http://download.opensuse.org/repositories/Virtualization:/containers/openSUSE_Leap_42.3/Virtualization:containers.repo
zypper ar -f http://download.opensuse.org/repositories/Virtualization:/containers:/Portus/openSUSE_Leap_42.3/Virtualization:containers:Portus.repo
zypper ref

Then, install portus and it’s dependencies :

zypper in apache2 docker docker-distribution-registry portus rubygem-passenger-apache2

After installing those package, start backend service for portus such as apache2, mysql, docker and docker-registry.

systemctl start docker
systemctl start registry
systemctl start apache2
systemctl start mysql

Then, after system ready. We can build portus using portuscl command :

portusctl setup --local-registry --ssl-gen-self-signed-certs --ssl-organization="openSUSE Indonesia" --ssl-organization-unit="openSUSE Portus" --ssl-email=admin@opensuse.id --ssl-country=ID --ssl-city=Jakarta --ssl-state="Jakarta Timur" --email-from=admin@opensuse.id --email-reply-to=no-reply@opensuse.id --delete-enable true

The important option is “–local-registry –ssl-gen-self-signed-certs”, other command is only for optional. You can run portusctl setup with only two option above.

Then, wait until it finished….and Voillaaaaa…..

Navigate to: https://ipaddress to open portus WebUI. It will be redirecting you to Sign up an user for administrator.

Now, let’s have fun with portus. You can read for next chapter about manage and testing portus here “Have Fun Claim Control your Docker Image with Portus! Chapter 2” (soon).

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