installer/

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Version: v0.5.0 Latest Latest
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Published: Aug 8, 2018 License: Apache-2.0

README

Installer

Installer is a tool for installing all Kyma components. The project is based on the Kubernetes operator pattern. It tracks changes of the Installation type instance of the custom resource. It also installs, uninstalls, and updates Kyma accordingly.

Prerequisites

  • Minikube 0.26.1
  • kubectl 1.9.0
  • Docker
  • jq

Development

Before each commit, use the before-commit.sh script to test your changes:

./before-commit.sh
Build a Docker image

Run the build.sh script to build a Docker image:

./scripts/build.sh
Run on Minikube
Run with local Kyma resources
export KYMA_PATH={PATH_TO_KYMA_SOURCES}

This environment variable is used to trigger shell scripts located in Kyma.

./scripts/run.sh --local --cr {PATH_TO_CR}

It will run Minikube, set up the installer, and install Kyma from local sources. If Minikube was started before, it will be restarted.

See the Custom Resource file section in this document to learn how to generate a Custom Resource file.

To track progress of the installation, run:

../../installation/scripts/is-installed.sh
Rerun without restarting Minikube

This scenario is useful when you want to reuse cached Docker images.

Run the following script to clear running Minikube:

../../installation/scripts/clean-up.sh

Execute the run.sh script with the --skip-minikube-start flag to rerun Kyma installation without stopping your Minikube:

./scripts/run.sh --skip-minikube-start
Update the Kyma cluster

Connect to the cluster that hosts your Kyma installation. Prepare the URL to the updated Kyma tar.gz package. Run the following command to edit the installation CR:

kubectl edit installation/{CR_NAME}

Change the url property in spec to {URL TO KYMA TAR GZ}. Trigger the update by overriding the action label in CR:

kubectl label installation/{CR_NAME} action=update --overwrite
Update the local Kyma installation

Prepare local changes in Kyma sources. Run the following command to copy the updated sources to the Installer Pod and trigger the update action:

../../installation/scripts/update.sh --local --cr-name {CR_NAME}

NOTE: You do not have to restart Minikube.

Uninstall Kyma

Run the following command to completely uninstall Kyma:

kubectl label installation/kyma-installation action=uninstall
Custom Resource file

The Custom Resource file for installer provides the basic information for Kyma installation.

The required properties iclude:

  • url which is the URL address to a Kyma charts package. Only tar.gz is supported and it is required for non-local installations only.
  • version which is the version of Kyma.
Generate the Custom Resource file for installer

Generate a Custom Resource file using the create-cr.sh script. It accepts the following arguments:

  • --output is a mandatory parameter which indicates the location of the Custom Resource output file.
  • --url is the URL to the Kyma package.
  • --version is the version of Kyma.

Example:

../../installation/scripts/create-cr.sh --output installer-cr.yaml --url {URL TO KYMA TAR GZ} --version 0.0.1

To run the installer with the Azure Broker enabled, specify the Azure credentials in the Custom Resource file. Edit the file by providing the following properties along with their values in the spec definition: az_subscription_id, az_tenant_id, az_client_id and az_client_secret.

Static overrides for cluster installations

You can define cluster-specific overrides for each root chart. In the cluster deployment scenario, the installer reads the cluster.yaml file in each root chart and appends its content to the overrides applied during the Helm installation.

Install selected components only

By default, this tool installs a predefined component package. If necessary, you can specify which components to install by customizing the component list located in the installation-config.yaml.tpl file. Available components:

  • cluster-prerequisites
  • cluster-essentials
  • istio
  • prometheus-operator
  • provision-bundles
  • dex
  • core
  • remote-environments

Directories

Path Synopsis
cmd
pkg
apis/installer/v1alpha1
Package v1alpha1 .
Package v1alpha1 .
apis/release/v1alpha1
Package v1alpha1 .
Package v1alpha1 .
client/clientset/versioned
This package has the automatically generated clientset.
This package has the automatically generated clientset.
client/clientset/versioned/fake
This package has the automatically generated fake clientset.
This package has the automatically generated fake clientset.
client/clientset/versioned/scheme
This package contains the scheme of the automatically generated clientset.
This package contains the scheme of the automatically generated clientset.
client/clientset/versioned/typed/installer/v1alpha1
This package has the automatically generated typed clients.
This package has the automatically generated typed clients.
client/clientset/versioned/typed/installer/v1alpha1/fake
Package fake has the automatically generated clients.
Package fake has the automatically generated clients.
client/clientset/versioned/typed/release/v1alpha1
This package has the automatically generated typed clients.
This package has the automatically generated typed clients.
client/clientset/versioned/typed/release/v1alpha1/fake
Package fake has the automatically generated clients.
Package fake has the automatically generated clients.
steps
Package steps contains implementation for all installation steps.
Package steps contains implementation for all installation steps.

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