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#Docker

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Docker is a software technology providing containers, promoted by the company Docker, Inc. Docker provides an additional layer of abstraction and automation of operating-system-level virtualization on Windows and Linux.

Hi Community!

New "Coding Talk" video is already on InterSystems Developers YouTube:

⏯ How to Enable Docker and VSCode to Your InterSystems IRIS Solution

https://www.youtube.com/embed/tlnoxcGzNJg
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Discussion
· Sep 22, 2022
Testing MergeCPF feature

For quite some time InterSystems IRIS supports such thing as Merging CPF. So, with help of this it should be possible to define only desired changes in configuration. And get them applied even with vanilla Docker image.

And I though it could be useful when used with Dockerfile. Use this way to configure IRIS during docker build instead of using Installer manifest.

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Welcome dear members of the Community to the presentation and first article of a small project that will demonstrate the capabilities of InterSystems IRIS to provide full backup functionality for a web application developed in Angular. This article will be limited to presenting the concept as well as the InterSystems IRIS functionalities used in a general way, going into more detail in subsequent articles.

Welcome to QuinielaML!

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Windows Subsystem for Linux (WSL) is a feature of Windows that allows you to run a Linux environment on your Windows machine, without the need for a separate virtual machine or dual booting.

WSL is designed to provide a seamless and productive experience for developers who want to use both Windows and Linux at the same time**.

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¡Hi everybody!

As you likely are aware, the new version of InterSystems IRIS for Health (I4H) it's already available in Docker Hub. It's the Community version and is free and fully functional. There have been comments about it in other articles and posts,... so today I won't add anything about features. Here I want to explore "the mistery about the disappearance, or better, absence of our persistent data when we run a container with the durable option" (I didn't find a terrifying font to emphasize the thriller... post editor is not terrific for styling smiley ) .

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I asked the question in email and get answers from those colleagus.

Question:

I failed to change time zone on latest iris container(Ubuntu), because:

  • I am irisowner, no root password

  • There is no sudo command

I used to use below Dockfile setting to change time zone while creating a new docker image. However, those commands doesn’t work from non-root user.

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Article
· May 11, 2023 1m read
Moving Docker in Windows

During my repeated testing with Docker Desktop, I'm often short on disk space
nd need to clean it over and over as described earlier.
The main reason is the rather uncontrolled growth of ext4.vhdx
that is located on my C: drive by default.
So I decided to move this file to a large external disk.

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Hi Community!

You're very welcome to watch a new video on InterSystems Developers YouTube, recorded in a new format called "Coding Talks":

Developing with Docker and InterSystems IRIS Community Edition

https://www.youtube.com/embed/L77K9oAgexQ
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Hi Developers!

As you know the concept of ObjectScript Package Manager consists of ZPM client - client application for IRIS which helps you to install packages from the registry. And the code which works "on the other side" is ZPM Registry - server which hosts packages and exposes API to submit, list and install it. Now when you install the ZPM client it installs packages from community package registry, which si hosted on pm.community.intersystems.com

But what if you want your own registry? E.g. you produce different software packages for your clients and you want to distribute it via private registry? Also, you may want to use your own registry to deploy solutions with different combinations of packages.

Is it possible? The answer is YES! You can have it if you deploy ZPM registry on your server with InterSystems IRIS.

To make it happen you would need to set up your own registry server.

How to do that?

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Article
· May 13, 2023 2m read
a virgin Jupyter-Notebook

Following one package from the last contest I met a strange problem.
There was the requirement to install jupyter-notebook
I work on Windows and there was some old Python installed
No big surprise: Installation of jupyter-notebook failed
Therefore, the latest version of Python was installed fast.

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Hi Developers!

InterSystems Package Manager (ZPM) is a great thing, but it is even better if you don't need to install it but can use immediately.

There are several ways how to do this and here is one approach of having IRIS container with ZPM built with dockerfile.

I've prepared a repository which has a few lines in dockerfile which perform the download and install the latest version of ZPM.

Add these lines to your standard dockerfile for IRIS community edition and you will have ZPM installed and ready to use.

To download the latest ZPM client:

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Announcement
· Dec 7, 2019
QEWD-baseline

Hot on the heels of the QEWD-JSdb announcement, QEWD-baseline provides a ready-to-run baseline environment for developing REST APIs.

The QEWD-baseline repository (https://github.com/robtweed/qewd-baseline) includes a fully-detailed tutorial on how to build RESY APIs using QEWD and the QEWD-JSdb database (running of course on IRIS).

https://github.com/robtweed/qewd-baseline/blob/master/REST.md

Included in the tutorial is:

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To prepare a migration to IRIS I use Docker images.
The (aged) application is built around Caché Terminal
And on Windows, IRIS uses the same ctelnetd.exe as Caché.

In my Docker installation, Telnet Settings are just grayed out in SMP.
and my Terminal can't 'connect.
Port mapping is OK and verified with TCP

Working from the console in Docker with the whole set of ESC and
screen formatting is not acceptable.
We tried WebTerminal but there is just no Partition behind as in Terminal.

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Hi Community,

The new video from Global Summit 2019 is already on InterSystems Developers YouTube:

⏯ The Value of Developing with Containers

https://www.youtube.com/embed/4-Vsb-MdJMw
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Hi Community!

Please welcome the new video on InterSystems Developers YouTube:

⏯ Get InterSystems IRIS from the Docker Store

https://www.youtube.com/embed/guTiFXELt8E
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Hi Developers,

New Coding Talk, recorded by @Evgeny Shvarov, is available on InterSystems Developers YouTube:

🎯 Creating REST API with InterSystems IRIS, ObjectScript and Docker

https://www.youtube.com/embed/5_R7dLKLbS8
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Hello,

I've always worked with typical web applications (a bunch of code files that sit in a server that connects to an RDS). Now our team is responsible for different IRIS for Health environments. We are currently working to set up the local dev environment and this is the current scenario:

* IRIS for Health local development server is running in a container

* Developers are using VSCode with the objectScript plugin

* GitHub as a version control system for the code and configuration.

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Trying to make some scripts to do some IRIS initialization during startup, I noticed that iris start and particularly stop takes too much time, and it starts to many processes in the background.

nostu is mostly useless for system initialization but could help in some scenarios, such as setup passwords, but it is still too slow

irisowner@4ea1bfb50b7f:~$ time iris start iris nostu
Starting IRIS
Using 'iris.cpf' configuration file

Starting Control Process
Global buffer setting requires attention.  Auto-selected 25% of total memory.
Allocated 7417MB shared memory
6002MB global buffers, 600MB routine buffers
Creating a WIJ file to hold 99 megabytes of data
InterSystems IRIS is started in single user mode.
To log into InterSystems IRIS, type:
    iris session IRIS -B

real    0m0.513s
user    0m0.090s
sys     0m0.207s

For instance, I have no idea why it starts so many AUX processes, even during NOSTU. With a normal start with no extra volumes attached, just plain start, I see no reasons to have so many AUX processes as well.

2011 pts/0    S      0:00 /usr/irissys/bin/irisdb -s/usr/irissys/mgr/ -w/usr/irissys/mgr/ -cc -B -Enostu -C/usr/irissys/iris.cpf*IRIS
 2052 pts/0    S      0:00 /usr/irissys/bin/irisdb WD                                                                                 
 2053 pts/0    S      0:00 /usr/irissys/bin/irisdb GC                                                                                 
 2054 pts/0    S      0:00 /usr/irissys/bin/irisdb JD                                                                                 
 2055 pts/0    S      0:00 /usr/irissys/bin/irisdb AUX2                                                                               
 2056 pts/0    S      0:00 /usr/irissys/bin/irisdb AUX1                                                                               
 2057 pts/0    S      0:00 /usr/irissys/bin/irisdb AUX5                                                                               
 2058 pts/0    S      0:00 /usr/irissys/bin/irisdb AUX7                                                                               
 2059 pts/0    S      0:00 /usr/irissys/bin/irisdb AUX4                                                                               
 2060 pts/0    S      0:00 /usr/irissys/bin/irisdb AUX3                                                                               
 2061 pts/0    S      0:00 /usr/irissys/bin/irisdb AUX6                                                                               
 2062 pts/0    S      0:00 /usr/irissys/bin/irisdb DBXD

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Hi Developers!

Recently we published on Docker Hub images for InterSystems IRIS Community Edition and InterSystems IRIS Community for Health containers.

What is that?

There is a repository that publishes it, and in fact, it is the same container IRIS Community Edition containers you have on official InterSystems listing which have the pre-loaded ObjectScript Package Manager (ZPM) client.

So if you run this container with IRIS CE or IRIC CE for Health you can immediately start using ZPM and install packages from Community Registry or any others.

What does this mean for you?

It means, that anyone can deploy any of your InterSystems ObjectScript application in 3 commands:

  • run IRIS container;
  • open terminal;
  • install your application as ZPM package.

It is safe, fast and cross-platform.

It's really handy if you want to test a new interesting ZPM package and not harm any of your systems.

Suppose, you have docker-desktop installed. You can run the image, which wiil pull the latest container if you don't have it locally:

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OAuth server to be deployed on the IRIS learning cloud platform. Clients - one on the other instance of the learning IRIS server, the other client locally on my computer in the container docker.

Both clients get a seemingly correct link (through ##class(%SYS.OAuth2.Authorization).GetAuthorizationCodeEndpoint()) to the login request form:

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