Table of Contents
- Introduction
- Clone Repository
- Create Local Kubernetes Cluster
- Git Repository Hierarchy
- Create App Of Everything Pattern
- Intall Argo CD Using Helm
- Demo With Sample Application
- Cleanup
This project aims to install a self-managed Argo CD using the App of App pattern. Full instructions and explanation can be found in the Medium article Self Managed Argo CD — App Of Everything.
Clone kurtburak/argocd repository to your local device.
git clone https://github.com/kurtburak/argocd.git
Intall kind.
brew install kind
Create local Kubernetes Cluster using kind
kind create cluster — name my-cluster
Check cluster is running and healthy
kubectl cluster-info — context kind-my-cluster
Kubernetes control plane is running at https://127.0.0.1:50589
KubeDNS is running at https://127.0.0.1:50589/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
To further debug and diagnose cluster problems, use ‘kubectl cluster-info dump’.
Folder structure below is used in this project. You are free to change it.
argocd/
├── argocd-appprojects # stores ArgoCD App Project's yaml files
├── argocd-apps # stores ArgoCD Application's yaml files
├── argocd-install # stores Argo CD installation files
│ ├── argo-cd # argo/argo-cd helm chart
│ └── values-override.yaml # custom values.yaml for argo-cd chart
Open argocd-install/values-override.yaml with your favorite editor and modify related values.
vi argocd-install/values-override.yaml
Or update it with your values.
cat << EOF > argocd-install/values-override.yaml
server:
configEnabled: true
config:
repositories: |
- type: git
url: https://github.com/kurtburak/argocd.git
- name: argo-helm
type: helm
url: https://argoproj.github.io/argo-helm
additionalApplications:
- name: argocd
namespace: argocd
destination:
namespace: argocd
server: https://kubernetes.default.svc
project: argocd
source:
helm:
version: v3
valueFiles:
- values.yaml
- ../values-override.yaml
path: argocd-install/argo-cd
repoURL: https://github.com/kurtburak/argocd.git
targetRevision: HEAD
syncPolicy:
syncOptions:
- CreateNamespace=true
- name: argocd-apps
namespace: argocd
destination:
namespace: argocd
server: https://kubernetes.default.svc
project: argocd
source:
path: argocd-apps
repoURL: https://github.com/kurtburak/argocd.git
targetRevision: HEAD
directory:
recurse: true
jsonnet: {}
syncPolicy:
automated:
selfHeal: true
prune: true
- name: argocd-appprojects
namespace: argocd
destination:
namespace: argocd
server: https://kubernetes.default.svc
project: argocd
source:
path: argocd-appprojects
repoURL: https://github.com/kurtburak/argocd.git
targetRevision: HEAD
directory:
recurse: true
jsonnet: {}
syncPolicy:
automated:
selfHeal: true
prune: true
additionalProjects:
- name: argocd
namespace: argocd
additionalLabels: {}
additionalAnnotations: {}
description: Argocd Project
sourceRepos:
- '*'
destinations:
- namespace: argocd
server: https://kubernetes.default.svc
clusterResourceWhitelist:
- group: '*'
kind: '*'
orphanedResources:
warn: false
EOF
Go to argocd directory.
cd argocd/argocd-install/
Intall Argo CD to argocd namespace using argo-cd helm chart overriding default values with values-override.yaml file. If argocd namespace does not exist, use --create-namespace parameter to create it.
helm install argocd ./argo-cd \
--namespace=argocd \
--create-namespace \
-f values-override.yaml
Wait until all pods are running.
kubectl -n argocd get pods
NAME READY STATUS RESTARTS
argocd-application-controller-bcc4f7584-vsbc7 1/1 Running 0
argocd-dex-server-77f6fc6cfb-v844k 1/1 Running 0
argocd-redis-7966999975-68hm7 1/1 Running 0
argocd-repo-server-6b76b7ff6b-2fgqr 1/1 Running 0
argocd-server-848dbc6cb4-r48qp 1/1 Running 0
Get initial admin password.
kubectl -n argocd get secrets argocd-initial-admin-secret \
-o jsonpath='{.data.password}' | base64 -d
Forward argocd-server service port 80 to localhost:8080 using kubectl.
kubectl -n argocd port-forward service/argocd-server 8080:80
Browse http://localhost:8080 and login with initial admin password.
Create an application project definition file called sample-project.
cat << EOF > argocd-appprojects/sample-project.yaml
apiVersion: argoproj.io/v1alpha1
kind: AppProject
metadata:
name: sample-project
namespace: argocd
spec:
clusterResourceWhitelist:
- group: '*'
kind: '*'
destinations:
- namespace: sample-app
server: https://kubernetes.default.svc
orphanedResources:
warn: false
sourceRepos:
- '*'
EOF
Push changes to your repository.
git add argocd-appprojects/sample-project.yaml
git commit -m "Create sample-project"
git push
Create a saple applicaiton definition yaml file called sample-app under argocd-apps.
cat << EOF >> argocd-apps/sample-app.yaml
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
name: sample-app
namespace: argocd
spec:
destination:
namespace: sample-app
server: https://kubernetes.default.svc
project: sample-project
source:
path: sample-app/
repoURL: https://github.com/kurtburak/argocd.git
targetRevision: HEAD
syncPolicy:
syncOptions:
- CreateNamespace=true
automated:
selfHeal: true
prune: true
EOF
Push changes to your repository.
git add argocd-apps/sample-app.yaml
git commit -m "Create application"
git push
Remove application and applicaiton project.
rm -f argocd-apps/sample-app.yaml
rm -f argocd-appprojects/sample-project.yaml
git rm argocd-apps/sample-app.yaml
git rm argocd-appprojects/sample-project.yaml
git commit -m "Remove app and project."
git push
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