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Offline Install in a Standard Kubernetes Cluster

This page will guide you to install DCE Community package offline in a standard Kubernetes cluster, which is recommended in the production environment.

Preparation

  • Prepare a machine with internet access.

  • Prepare a Kubernetes cluster. For resources required, see Cluster Resources for Installing DCE Community.

    • Create a StorageClass and set it the default SC
    • Install CoreDNS in the cluster
    • If there is only one node in the cluster, make sure you have removed taints for that node

  • Install Dependencies.

    You must install certain versions of each dependency:

    • helm ≥ 3.11.1
    • skopeo ≥ 1.11.1
    • kubectl ≥ 1.25.6
    • yq ≥ 4.31.1

Download and install

  1. Find a machine with internet access and run the command below to download and extract the offline package (or download it from the download center):

    Take VERSION=v0.21.0 as an example.

    export VERSION=v0.21.0
wget https://qiniu-download-public.daocloud.io/DaoCloud_Enterprise/dce5/offline-community-$VERSION-amd64.tar
tar -xvf offline-community-$VERSION-amd64.tar

  2. Upload the extracted files to the K8s control plane node (Controller Node) and configure clusterConfig.yaml on that node.

    • For non-public cloud environments (VMs or physical machines), enable load balancing (Metallb) to avoid instability caused by NodePort due to changing node IPs. Carefully plan your network and set up 2 necessary VIPs. Here is a sample configuration:

      clusterConfig.yaml
      apiVersion: provision.daocloud.io/v1alpha3
kind: ClusterConfig
spec:
  loadBalancer:
    type: metallb
    istioGatewayVip: 10.6.229.10/32
    insightVip: 10.6.229.11/32
  fullPackagePath: absolute-path-of-the-offline-directory # (1)!
  imagesAndCharts: # (2)!
    type: external 
    externalImageRepo: your-external-registry # (3)!
    # externalImageRepoUsername: admin
    # externalImageRepoPassword: Harbor123456
      1. Path after extracting the offline package
      2. Container registry
      3. Container registry address, must be http or https

    • For public cloud environments that provide Kubernetes load balancing through a pre-configured Cloud Controller Manager, use the following sample configuration:

      clusterConfig.yaml
      apiVersion: provision.daocloud.io/v1alpha3
kind: ClusterConfig
spec:
  loadBalancer:
    type: cloudLB
  fullPackagePath: absolute-path-of-the-offline-directory # (1)!
  imagesAndCharts: # (2)!
    type: external
    externalImageRepo: your-external-registry # (3)!
    # externalImageRepoUsername: admin
    # externalImageRepoPassword: Harbor123456
      1. Path after extracting the offline package
      2. Container registry
      3. Container registry address, must be http or https

    • If using NodePort to expose the console (only recommended for PoC), use the following sample configuration:

      clusterConfig.yaml
      apiVersion: provision.daocloud.io/v1alpha3
kind: ClusterConfig
spec:
  loadBalancer:
    type: NodePort
  fullPackagePath: absolute-path-of-the-offline-directory # (1)!
  imagesAndCharts: # (2)!
    type: external 
    externalImageRepo: your-external-registry # (3)!
    # externalImageRepoUsername: admin
    # externalImageRepoPassword: Harbor123456
      1. Path after extracting the offline package
      2. Container registry
      3. Container registry address, must be http or https

  3. Install DCE 5.0.

    ./dce5-installer install-app -c clusterConfig.yaml

    Note

    • For clusterConfig.yaml file settings, refer to the previous step.
    • -z minimal install
    • -c specifies the cluster configuration file. You don't need to specify -c when using NodePort to expose the console.
    • -d enable debug mode
    • --serial specifies that all installation tasks are executed serially

  4. After the installation is complete, the command line will prompt that the installation is successful. Congratulations!

    Now you can use the default account and password (admin/changeme) to explore the new DCE 5.0 through the URL prompted on the screen!

    success

    Success

    It's recommended to write down the prompted URL for your next visit.

  5. Before fully explore the features of DCE 5.0, you need to apply for a license. The Community package is provided for free. All you need to do is to apply for a free license.

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