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Kubernetes Installation Documentation:
https://kubernetes.io/docs/setup/
Kubectl Installation Documentation:
https://kubernetes.io/docs/tasks/tools/
Creating a kube-config Context using kubectl:
https://kubernetes.io/docs/tasks/access-application-cluster/configure-access-multiple-clusters/
Helm Installation Documentation:
https://helm.sh/docs/intro/install/
ModelOp DockerHub Repository:
https://hub.docker.com/u/modelop
Getting the Helm Charts
There are two methods for fetching the Helm Charts may be acquired from ModelOp , either by requesting a tar .gz tgz compressed file of the content of the Git repository where the Helm Charts reside chart from your ModelOp Account Executive or Sales Engineer, which will be delivered via bucket link.
Bring the ModelOp Center Helm Charts onto the workstation or the operating system with both the kubectl and helm utilities installed, as per the previous section.
From With the provided tar.gz file: tar -xvf helmmoc-installer.tar.gzDespite which method of retrieving the Helm Charts is chosen, the directory helm-installer will be created with a number of files and folders inside in the directory where the tar command is executed[version].tgz
This will create a directory named moc which contains the chart.
Configure Helm Charts
Before deploying an instance of ModelOp Center, choices need to be made in specific configuration files related to which services are deployed, which affects how ModelOp utilizes enterprise resources in a variety of fashions. Prior to understanding which files to modify, it is important to understand the directory structure of the Helm Charts, please read through the following items.
The "installer" directory moc directory is the chart itself, and contains all of the necessary files for installing using Helm.
Within the "installer" directory, the installer/The moc directory contains a scripts subdirectory, which contains a generatePullSecrets.sh script is that can be used to generate secrets within Kubernetes in order to allow the cluster to import images.
The installer/3.0-sccs-compat.yaml file contains certain default settings for a ModelOp Center v.3.0 installation which include SCCS (Spring Cloud Configuration Server) which is used as the backing configuration service for ModelOp services.
The installer/moc directory is a default configuration ModelOp Center deployment, using database pods to support the core application of ModelOp Center. It is suggested that a copy of this directory be made for every release that would need to be deployed. e.g. cp -R installer/moc installer/example-release
This directory can be referred to as an "environment", and each environment directory can be used to deploy any number of Helm "releases", which is the way Helm manages deployed applications to Kubernetes.
Within the copied directory, there are a number of files that are created, but at the root of the environment directory there are two primary files:
moc/starter/ directory contains a simple.yaml file that can serve as the starting point for customizing your MOC deployment via Helm. It is recommended that you copy this file outside the chart and add/modify configuration only in this file, leaving the contents of the moc directory untouched.
moc/values.yaml contains the bulk majority of the configurations that will need to be modified and made specific to the environment they are targeting. Please find information related to the values file here: https://helm.sh/docs/chart_best_practices/values/ . Again, it is not recommended that the values.yaml file be modified. Rather, the simple.yaml file should be filled out with whatever values you wish to override.
Chart.yaml contains details about what will describe the release once installed, it is a place to track details on what is deployed.
The my-config sccs directory contains all of the base yaml files that will be used by Spring Cloud Configuration Server to configure the ModelOp Center application.
Modifying the values.yaml file is necessary to tailor the installation to the targeted environment. The main section of values.yaml that should be modified is moc, which contains a number of key/values that need to be set to adjust the deployment to specific needs. Please refer both to the following documentation, with general guidelines on the sections, as well as the in-line comments that are part of the file itself.Please refer to the document Configuring values.yaml before proceeding to the section "Complete the Installation"
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Please only begin this section after having tailored the valuessimple.yaml file to the specific deployment needs.
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| Code Block |
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$ ./generatePullSecrets.sh --apply Enter username: modelopdevops Enter password: secret/modelop-regcreds created |
Update the contents of the simple.yaml file to reflect your desired version and namespace:
| Code Block |
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moc:
namespace: my-moc-namespace
version: "3.1" |
Assuming the Then trigger the installation by running the following command from the installer directory inside the helm-installer directory that was providedthat contains the moc directory:
helm install RELEASENAME DIRECTORY --set moc .version=DESIREDVERSION --namespace TARGETNAMESPACE -f 3.0-sccs-compat.simple.yaml
Whereby:
RELEASENAME = The name given to the release, tracked by Helm, which can be anything relevant to the deployment itself. e.g. "moc-dev-helm1" Please see the following documentation that describes the concept of a Helm Release: https://helm.sh/docs/intro/using_helm/#three-big-concepts DIRECTORY =
The directory moc in which the targeted Chart.yaml resides, no slashes necessary. e.g. "moc-dev"
DESIREDVERSION = The version of ModelOp Center desired for the Helm deployment. e.g. "3.0"
TARGETNAMESPACE = The namespace into which you would like to deploy ModelOp Center within your current context in Kubernetes.
Example command structure:
helm install moc-test-rel1 moc-test --set moc.version=3.0 --namespace moc-test-1 -f 3.0-sccs-compat.yaml
This example command assumes the existence of the directory %helm-installer/installer/moc-test which is a copy of the %helm-installer/installer/moc directory with all values changed to what is desired for the environmentthe above command is referencing the local moc subdirectory.
Output will resemble this example:
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