Decisions Container

Overview

Note:

Decisions can be hosted in containers only with version 8.0 and later.

This article provides comprehensive information on the hosting architecture, system prerequisites, platform restrictions, and any additional configurations needed when hosting a container.

Architecture Diagram

System Specifications

To ensure the platform runs smoothly in containers, the following system specifications must be met.

Container Image

Container images of version 8.0 and above have been published to Docker Hub and are publicly available.

For example, to pull the latest container image, use the following tag - decisionscore/platform:latest

Additional configurations

Below are changes needed for specific modules or features to utilize them for a container.

SAML Module

While configuring the SAML settings, it is important to add an X.509 Certificate in PEM format. If not added, an invalid certificate error will be thrown.

Convert Document Steps and WordToPdf module

The Convert Document Steps and the WordToPdf module use TrueType fonts to convert the fonts within the documents. TrueType Fonts are not loaded by default in containers. Thus, users have to volume map the font location to the /customfont folder. 

The Windows font can be found at C:\Windows\Fonts, and an easy and quick way to get TrueType fonts on a Linux system is to copy .TTF and .TTC files from the C:\Windows\Fonts to a new directory on the Linux environment and map the directory with /customfont.

Python Module

In order to use the Python module in containers, Decisions has included Python in the container image. The container will have the most up-to-date version of Python installed. The default path for Python in containers is at /usr/bin/python3.

After installing the Python module, users need to point to the Python Module Settings path to /usr/bin/python3.

External Form

Since the file path for a Linux operating system is case-sensitive, ensure that the JavaScript paths for the external Form have the correct casing.

Decisions Agents

The Download Agent button will not download the DecisionsAgent.msi in the container. To retrieve the .msi, it must be downloaded from the release site.

HL7 Module

The HL7 module requires extra ports to be opened and exposed. This can be done by running the Docker expose commands. Ports can be opened using the following command:

—expose=port_number

Afterward, the port can be published and mapped to the container. The following command does this.

-p portnumber:portnumber

Active Directory

Active Directory module might fail to pass authentication via LDAP to the Active Directory domain when run from Decisions Container (Linux Environment). To prevent authentication failure, follow these steps while setting up an AD server.

• Currently, containers can access all steps in the active directory module except for the Create user advanced and Set Password steps. For logging into a container using an AD account. The user must enter the domain name along with the username (domainName\userName).

• Ensure that you disable "Use No Login Prefix" in the server settings while adding the servers. Refer to the following image.

Related Articles

• Deploying Containers on Docker 

• Deploying Containers on Azure

• Deploying Containers on AWS

• Deploying Containers on GCP

• Deploying an AWS Kubernetes Cluster (EKS)

• Deploying an Azure Kubernetes Cluster (AKS)