Decapod-bootstrap

This repo includes materials to bootstrap decapod controllers using app of apps pattern. Currently the following applications are bootstrapped by default.

• argo-cd
• argo-workflow

Prerequisite

• Postgresql Database

Installation

Clone repository

clone this repository that includes:

• value-override file for argocd installation, which contains initial (meta) project/app configurations
• actual manifest directory watched by the above meta apps, which contains actual decapod project and application configurations

$ git clone https://github.com/openinfradev/decapod-bootstrap

The repository structure looks as follows.

├── README.md
├── genereate_yamls.sh
├── argocd-install
│   └── values-override.yaml
├── argocd-apps-install
│   └── values-override.yaml
├── decapod-apps
│   ├── README.md
│   ├── argo-workflows.yaml
│   ├── db-secret-argo.yaml
└── decapod-projects
    ├── README.md
    └── decapod-controller.yaml

• genereate_yamls.sh: create YAML files for bootstrapping if you don't use the default decapod git repository in github.com/openinfradev

Directory contents

• argocd-install: value-override file for argocd helm chart, which contains configuration to create the following (meta) project and app.

  • meta-project 'decapod-projects'
  • meta-application 'decapod-apps'

• decapod-projects: directory for actual project manifest files. Once any manifest file is added, it's detected by 'decapod-projects' project, and created as argocd project.

• decapod-apps: directory for actual application manifest files. Once any manifest file is added, it's detected by 'decapod-apps' project, and created as argocd application.

Create namespaces

$ kubectl create ns argo

Install argo-cd using helm-chart /w value-override file

(chart location: https://artifacthub.io/packages/helm/argo/argo-cd)

$ helm repo add argo https://argoproj.github.io/argo-helm
$ helm install argo-cd argo/argo-cd --version 5.41.1 -f ./decapod-bootstrap/argocd-install/values-override.yaml -n argo
$ helm install argo-cd-apps argo/argo-cd-apps --version 1.3.0 -f ./decapod-bootstrap/argocd-apps-install/values-override.yaml -n argo

Once argocd and argocd-apps is installed, it creates the meta project and apps, which in turn, bootstraps actual decapod applications.

Watch for applications to bootstrap automatically

$ kubectl get pods -n argo
NAME                                                           READY   STATUS             RESTARTS   AGE
argo-cd-argocd-application-controller-7bc75f949c-svrnk         1/1     Running            0          5m34s
argo-cd-argocd-dex-server-7bd494f8b5-j5br5                     1/1     Running            0          5m34s
argo-cd-argocd-redis-6f696857c5-zmqfh                          1/1     Running            0          5m34s
argo-cd-argocd-repo-server-545455798b-st5x8                    1/1     Running            0          5m34s
argo-cd-argocd-server-6666cb7689-tswfr                         1/1     Running            0          5m34s
argo-workflows-operator-server-d7df65b99-gpx5q                 0/1     Running            0          4m21s
argo-workflows-operator-workflow-controller-598dfdd565-vrzg9   0/1     Running            0          4m21s