add blog

apps/blog-ahmza-com.yaml

@@ -0,0 +1,26 @@
+# CI publishes the static site image; this Application makes Git, rather than
+# a runner's kubeconfig, the source of truth for which image Kubernetes runs.
+apiVersion: argoproj.io/v1alpha1
+kind: Application
+metadata:
+  name: blog-ahmza-com
+  namespace: argocd
+  # No cascading-deletion finalizer during initial migration: removing this
+  # Application must not unexpectedly delete the public site's resources.
+spec:
+  project: default
+  source:
+    repoURL: https://tea.ahmza.com/ahmza.com/k8s-starter-pack.git
+    targetRevision: main
+    path: apps/blog-ahmza-com
+  destination:
+    server: https://kubernetes.default.svc
+    namespace: blog-ahmza-com
+  syncPolicy:
+    automated:
+      # Review the initial sync before allowing Git deletions to remove live
+      # resources. Enabling prune later is separate from cascading app deletion.
+      prune: false
+      selfHeal: true
+    syncOptions:
+      - CreateNamespace=true

apps/blog-ahmza-com/deployment.yaml

@@ -0,0 +1,78 @@
+# Hugo generates the complete site at image-build time. SWS serves only those
+# immutable files, with no writable content volume or Kubernetes API access.
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: blog
+  namespace: blog-ahmza-com
+spec:
+  replicas: 2
+  strategy:
+    type: RollingUpdate
+    rollingUpdate:
+      # Keep the existing site available while replacement Pods become ready.
+      maxUnavailable: 0
+      maxSurge: 1
+  selector:
+    matchLabels:
+      app: blog
+  template:
+    metadata:
+      labels:
+        app: blog
+    spec:
+      automountServiceAccountToken: false
+      topologySpreadConstraints:
+        - maxSkew: 1
+          topologyKey: kubernetes.io/hostname
+          # Ignore tainted control-plane nodes when balancing the two workers;
+          # otherwise a surge Pod could be blocked by an unusable third node.
+          nodeTaintsPolicy: Honor
+          whenUnsatisfiable: DoNotSchedule
+          labelSelector:
+            matchLabels:
+              app: blog
+      securityContext:
+        seccompProfile:
+          type: RuntimeDefault
+      containers:
+        - name: blog
+          # Bootstrap with the verified published amd64/arm64 index. CI updates
+          # this line to each build's digest, never a mutable latest tag.
+          # yamllint disable-line rule:line-length
+          image: tea.ahmza.com/ahmza/blog-ahmza-com@sha256:25dce7a45c8869879bbb6f056b3e4d18971c7da542255867ad83f1db26ffefc3
+          imagePullPolicy: IfNotPresent
+          ports:
+            - name: http
+              containerPort: 80
+              protocol: TCP
+          securityContext:
+            allowPrivilegeEscalation: false
+            readOnlyRootFilesystem: true
+            runAsNonRoot: true
+            # SWS does not declare USER in the image. An explicit unprivileged
+            # identity lets Kubernetes enforce runAsNonRoot safely.
+            runAsUser: 10001
+            runAsGroup: 10001
+            capabilities:
+              drop:
+                - ALL
+          readinessProbe:
+            httpGet:
+              path: /health
+              port: http
+            initialDelaySeconds: 2
+            periodSeconds: 10
+          livenessProbe:
+            httpGet:
+              path: /health
+              port: http
+            initialDelaySeconds: 5
+            periodSeconds: 30
+          resources:
+            requests:
+              cpu: 10m
+              memory: 16Mi
+            limits:
+              cpu: 250m
+              memory: 128Mi

apps/blog-ahmza-com/ingress.yaml

@@ -0,0 +1,27 @@
+# Share ingress-nginx at 10.10.60.12. DNS and any external Caddy/NetBird
+# hostname routing must also be pointed at this ingress before public cutover.
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: blog
+  namespace: blog-ahmza-com
+  annotations:
+    # Reuse the production DNS-01 issuer already used by the cluster's sites.
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+spec:
+  ingressClassName: nginx
+  tls:
+    - hosts:
+        - blog.ahmza.com
+      secretName: blog-tls
+  rules:
+    - host: blog.ahmza.com
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: blog
+                port:
+                  name: http

apps/blog-ahmza-com/namespace.yaml

@@ -0,0 +1,5 @@
+# Isolate the blog's lifecycle and access controls from unrelated applications.
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: blog-ahmza-com

apps/blog-ahmza-com/service.yaml

@@ -0,0 +1,15 @@
+# A stable in-cluster address for ingress-nginx; no extra MetalLB IP is needed.
+apiVersion: v1
+kind: Service
+metadata:
+  name: blog
+  namespace: blog-ahmza-com
+spec:
+  type: ClusterIP
+  selector:
+    app: blog
+  ports:
+    - name: http
+      port: 80
+      targetPort: http
+      protocol: TCP