Offline Installation of Kubeapps ¶
Table of Contents ¶
- Step 1. Download the Kubeapps chart
- Step 2. Mirror Kubeapps images
- Step 3. [Optional] Prepare an offline Package Repository
- Step 4. Install Kubeapps
Kubeapps provides a cloud-native solution to browse, deploy and manage the lifecycle of applications on a Kubernetes cluster. It is a one-time install that gives you many important benefits, including the ability to:
- browse and deploy packaged applications from public or private repositories
- customize deployments through an intuitive user interface
- upgrade, manage and delete the applications that are deployed in your Kubernetes cluster
- expose an API to manage your package repositories and your applications
This guide explains in detail how to install Kubeapps in an air-gapped environment.
To be able to able to install Kubeapps without an Internet connection, it’s necessary to:
- Kubernetes cluster (air-gapped).
- Pre-download the Kubeapps Helm chart.
- Mirror Kubeapps images so they are accessible within the cluster.
- [Optional] Have one or more offline Package Repositories.
Note: Internet connection is necessary at this point to download charts and images for an offline installation
Step 1. Download the Kubeapps chart ¶
First, download the tarball containing the Kubeapps chart from the publicly available repository maintained by Bitnami.
helm pull --untar https://charts.bitnami.com/bitnami/kubeapps-x.y.z.tgz helm dep update ./kubeapps
x.y.zmust be replaced by the latest version of the Kubeapps chart available at the Bitnami Chart Repository
Step 2. Mirror Kubeapps images ¶
To be able to install Kubeapps, it’s necessary to either have a copy of all the images that Kubeapps requires in each node of the cluster or push these images to an internal Docker registry that Kubernetes can access. You can obtain the list of images by checking the
of the chart. For example:
registry: docker.io repository: bitnami/nginx tag: 1.19.2-debian-10-r32
The list of images to download includes (could change in time):
For simplicity, in this guide, use a single-node cluster created with
Kubernetes in Docker (
, using a namespace called “kubeapps”. In this environment, the images have to be pre-loaded: - first, pull the images (
docker pull), - next load them into the cluster (
kind load docker-image).
docker pull bitnami/nginx:1.19.2-debian-10-r32 kind load docker-image bitnami/nginx:1.19.2-debian-10-r32
Note: tags must be updated according to the version of the images in the
In case you are using a private Docker registry, you need to re-tag the images and push them:
docker pull bitnami/nginx:1.19.2-debian-10-r32 docker tag bitnami/nginx:1.19.2-debian-10-r32 REPO_URL/bitnami/nginx:1.19.2-debian-10-r32 docker push REPO_URL/bitnami/nginx:1.19.2-debian-10-r32
Follow the same process for every image present in the values file.
Step 3. [Optional] Prepare an offline Package Repository ¶
By default, Kubeapps install the
bitnami Package Repository. Since, to sync that repository, it’s necessary to have an Internet connection, you will need to mirror it or create your repository (e.g. using Harbor) and configure it when installing Kubeapps.
For more information about how to create a private repository, follow this how-to guide .
Step 4. Install Kubeapps ¶
Now that you have everything pre-loaded in your cluster, it’s possible to install Kubeapps using the chart directory from the first step:
helm install kubeapps [OPTIONS] ./kubeapps
NOTE: If during step 2), you were using a private docker registry, it’s necessary to modify the global value used for the registry. This can be set by specifying
If this registry, additionally, needs an ImagePullSecret, specify it with