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feat: restructure GitOps for multi-environment deployment

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- Add apps/myapp/base with deployment, service, httproute
- Add apps/myapp/overlays/staging (1 replica, 128Mi/256Mi, staging hostname)
- Add apps/myapp/overlays/production (2 replicas, 256Mi/512Mi, prod hostname)
- Remove old apps/sample-webapp structure

Structure follows folder-per-environment pattern with Kustomize overlays.
This commit is contained in:
Multi-Environment Setup
2026-02-01 22:48:59 +01:00
parent ad75d157a7
commit fc5c6de051
12 changed files with 125 additions and 62 deletions
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21
apps/myapp/base/deployment.yaml Normal file
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@@ -0,0 +1,21 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: myapp
labels:
app: myapp
managed-by: argocd
spec:
selector:
matchLabels:
app: myapp
template:
metadata:
labels:
app: myapp
spec:
containers:
- name: myapp
image: nginx:alpine
ports:
- containerPort: 80

19
apps/myapp/base/httproute.yaml Normal file
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@@ -0,0 +1,19 @@
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
name: myapp-route
labels:
app: myapp
managed-by: argocd
spec:
parentRefs:
- name: cluster-gateway
namespace: traefik-system
rules:
- matches:
- path:
type: PathPrefix
value: /
backendRefs:
- name: myapp
port: 80

3
apps/sample-webapp/kustomization.yaml → apps/myapp/base/kustomization.yaml
View File

@@ -1,6 +1,7 @@
apiVersion: kustomize.config.k8s.io/v1beta1 apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization kind: Kustomization
resources: resources:
- configmap.yaml
- deployment.yaml - deployment.yaml
- service.yaml - service.yaml
- httproute.yaml

7
apps/sample-webapp/service.yaml → apps/myapp/base/service.yaml
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@@ -1,14 +1,13 @@
apiVersion: v1 apiVersion: v1
kind: Service kind: Service
metadata: metadata:
name: sample-webapp name: myapp
namespace: sample
labels: labels:
app: sample-webapp app: myapp
managed-by: argocd managed-by: argocd
spec: spec:
selector: selector:
app: sample-webapp app: myapp
ports: ports:
- port: 80 - port: 80
targetPort: 80 targetPort: 80

17
apps/myapp/overlays/production/deployment-patch.yaml Normal file
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@@ -0,0 +1,17 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: myapp
spec:
replicas: 2
template:
spec:
containers:
- name: myapp
resources:
requests:
memory: "256Mi"
cpu: "200m"
limits:
memory: "512Mi"
cpu: "500m"

7
apps/myapp/overlays/production/httproute-patch.yaml Normal file
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@@ -0,0 +1,7 @@
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
name: myapp-route
spec:
hostnames:
- myapp.kube2.tricnet.de

15
apps/myapp/overlays/production/kustomization.yaml Normal file
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@@ -0,0 +1,15 @@
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: myapp-production
resources:
- ../../base
patches:
- path: deployment-patch.yaml
- path: httproute-patch.yaml
images:
- name: nginx
newTag: alpine

17
apps/myapp/overlays/staging/deployment-patch.yaml Normal file
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@@ -0,0 +1,17 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: myapp
spec:
replicas: 1
template:
spec:
containers:
- name: myapp
resources:
requests:
memory: "128Mi"
cpu: "100m"
limits:
memory: "256Mi"
cpu: "250m"

7
apps/myapp/overlays/staging/httproute-patch.yaml Normal file
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@@ -0,0 +1,7 @@
apiVersion: gateway.networking.k8s.io/v1
kind: HTTPRoute
metadata:
name: myapp-route
spec:
hostnames:
- staging.myapp.kube2.tricnet.de

15
apps/myapp/overlays/staging/kustomization.yaml Normal file
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@@ -0,0 +1,15 @@
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
namespace: myapp-staging
resources:
- ../../base
patches:
- path: deployment-patch.yaml
- path: httproute-patch.yaml
images:
- name: nginx
newTag: alpine

18
apps/sample-webapp/configmap.yaml
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@@ -1,18 +0,0 @@
apiVersion: v1
kind: ConfigMap
metadata:
name: sample-webapp-html
namespace: sample
labels:
app: sample-webapp
managed-by: argocd
data:
index.html: |
<!DOCTYPE html>
<html>
<head><title>Sample Web App</title></head>
<body>
<h1>Sample Web App</h1>
<p>Managed by Argo CD - GitOps is working!</p>
</body>
</html>

37
apps/sample-webapp/deployment.yaml
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@@ -1,37 +0,0 @@
apiVersion: apps/v1
kind: Deployment
metadata:
name: sample-webapp
namespace: sample
labels:
app: sample-webapp
managed-by: argocd
spec:
replicas: 2
selector:
matchLabels:
app: sample-webapp
template:
metadata:
labels:
app: sample-webapp
spec:
containers:
- name: nginx
image: nginx:alpine
ports:
- containerPort: 80
resources:
requests:
memory: "32Mi"
cpu: "10m"
limits:
memory: "64Mi"
cpu: "100m"
volumeMounts:
- name: html
mountPath: /usr/share/nginx/html
volumes:
- name: html
configMap:
name: sample-webapp-html