first commit

2026-03-11 12:16:18 +01:00
commit eb46d77fe7
11 changed files with 412 additions and 0 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,21 @@
+# Secrets - never commit these
+*.secret.yaml
+*.secret.yml
+secrets/
+*.pem
+*.key
+
+# Local overrides
+values.local.yaml
+*.local.yaml
+
+# Editor files
+*.swp
+*.swo
+*~
+.idea/
+.vscode/
+
+# OS files
+.DS_Store
+Thumbs.db
--- a/README.md
+++ b/README.md
@@ -0,0 +1,58 @@
+# Kubernetes Configuration
+
+Cluster configuration for the roamflow k3s cluster.
+
+## Structure
+
+```
+kube-config/
+├── apps/                    # Application deployments
+│   ├── headlamp/           # Kubernetes dashboard
+│   └── ...
+├── infrastructure/          # Cluster infrastructure
+│   └── ...
+└── scripts/                 # Deployment scripts
+    └── deploy.sh
+```
+
+## Usage
+
+### Deploy a specific app
+```bash
+./scripts/deploy.sh headlamp
+```
+
+### Deploy all apps
+```bash
+./scripts/deploy.sh --all
+```
+
+## Cluster Access
+
+```bash
+# Start SSH tunnel
+ssh -f -N -L 6443:127.0.0.1:6443 roamflow-1
+
+# Use kubectl
+KUBECONFIG=~/.kube/config-roamflow kubectl get pods -A
+```
+
+## Apps
+
+| App | Namespace | Description | URL |
+|-----|-----------|-------------|-----|
+| headlamp | headlamp | Kubernetes dashboard | headlamp.duylai.duckdns.org |
+| gitea | gitea | Git hosting | gitea.duylai.duckdns.org |
+| vikunja | vikunja | Task management | tasks.duylai.duckdns.org |
+
+## Memory Configuration
+
+The following memory limits have been adjusted to prevent OOM kills:
+
+| Service | Limit | Request |
+|---------|-------|---------|
+| PostgreSQL (per pod) | 768Mi | 512Mi |
+| Pgpool | 512Mi | 384Mi |
+| Valkey | 192Mi | 128Mi |
+
+These are saved in `apps/gitea/values.yaml` for future upgrades.
--- a/apps/gitea/ingress.yaml
+++ b/apps/gitea/ingress.yaml
@@ -0,0 +1,24 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: gitea-ingress
+  namespace: gitea
+  annotations:
+    kubernetes.io/ingress.class: traefik
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+spec:
+  rules:
+    - host: gitea.duylai.duckdns.org
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: gitea-http
+                port:
+                  number: 3000
+  tls:
+    - hosts:
+        - gitea.duylai.duckdns.org
+      secretName: gitea-tls-secret
--- a/apps/gitea/kustomization.yaml
+++ b/apps/gitea/kustomization.yaml
@@ -0,0 +1,12 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: gitea
+
+resources:
+  - namespace.yaml
+  - ingress.yaml
+
+# Helm values are in values.yaml
+# Deploy with:
+# helm upgrade --install gitea gitea-charts/gitea -f values.yaml -n gitea --create-namespace
--- a/apps/gitea/namespace.yaml
+++ b/apps/gitea/namespace.yaml
@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: gitea
+  labels:
+    name: gitea
--- a/apps/gitea/values.yaml
+++ b/apps/gitea/values.yaml
@@ -0,0 +1,83 @@
+# Gitea Helm Values
+# Reference: https://gitea.com/gitea/helm-chart/
+
+# Gitea server configuration
+gitea:
+  config:
+    server:
+      DOMAIN: gitea.duylai.duckdns.org
+      ROOT_URL: https://gitea.duylai.duckdns.org/
+      SSH_DOMAIN: gitea.duylai.duckdns.org
+      SSH_LISTEN_PORT: 22
+      SSH_PORT: 30222
+
+# Service configuration
+service:
+  http:
+    type: ClusterIP
+    clusterIP: ""
+  ssh:
+    type: NodePort
+    nodePort: 30222
+
+# Persistence for Git data
+persistence:
+  enabled: true
+  create: true
+  claimName: gitea-shared-storage
+  size: 10Gi
+  accessModes:
+    - ReadWriteOnce
+  annotations:
+    helm.sh/resource-policy: keep
+
+# PostgreSQL HA configuration
+postgresql-ha:
+  enabled: true
+
+  postgresql:
+    # Number of PostgreSQL replicas (minimum 3 for HA)
+    replicaCount: 3
+
+    # Resource limits (fixed for OOM issues)
+    resources:
+      limits:
+        cpu: 375m
+        memory: 768Mi
+      requests:
+        cpu: 250m
+        memory: 512Mi
+
+    persistence:
+      size: 10Gi
+
+  pgpool:
+    enabled: true
+
+    # Resource limits (fixed for OOM issues)
+    resources:
+      limits:
+        cpu: 375m
+        memory: 512Mi
+      requests:
+        cpu: 250m
+        memory: 384Mi
+
+# Valkey (Redis) cluster configuration
+valkey-cluster:
+  cluster:
+    # Number of nodes (minimum 3 for cluster)
+    nodes: 3
+
+  # Resource limits
+  resources:
+    limits:
+      cpu: 150m
+      memory: 192Mi
+    requests:
+      cpu: 100m
+      memory: 128Mi
+
+# Disable single PostgreSQL (using HA version)
+postgresql:
+  enabled: false
--- a/apps/headlamp/ingress.yaml
+++ b/apps/headlamp/ingress.yaml
@@ -0,0 +1,26 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: headlamp-ingress
+  namespace: headlamp
+  annotations:
+    kubernetes.io/ingress.class: traefik
+    cert-manager.io/cluster-issuer: letsencrypt-prod
+    traefik.ingress.kubernetes.io/router.entrypoints: websecure
+    traefik.ingress.kubernetes.io/router.tls: "true"
+spec:
+  rules:
+    - host: headlamp.duylai.duckdns.org
+      http:
+        paths:
+          - path: /
+            pathType: Prefix
+            backend:
+              service:
+                name: headlamp
+                port:
+                  number: 80
+  tls:
+    - hosts:
+        - headlamp.duylai.duckdns.org
+      secretName: headlamp-tls
--- a/apps/headlamp/kustomization.yaml
+++ b/apps/headlamp/kustomization.yaml
@@ -0,0 +1,11 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+
+namespace: headlamp
+
+resources:
+  - namespace.yaml
+  - ingress.yaml
+
+# Helm values are in values.yaml
+# Use: helm upgrade --install headlamp headlamp/headlamp -f values.yaml -n headlamp
--- a/apps/headlamp/namespace.yaml
+++ b/apps/headlamp/namespace.yaml
@@ -0,0 +1,6 @@
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: headlamp
+  labels:
+    name: headlamp
--- a/apps/headlamp/values.yaml
+++ b/apps/headlamp/values.yaml
@@ -0,0 +1,43 @@
+# Headlamp Helm Values
+# Reference: https://artifacthub.io/packages/helm/headlamp/headlamp
+
+replicaCount: 1
+
+image:
+  repository: ghcr.io/headlamp-k8s/headlamp
+  tag: ""
+  pullPolicy: IfNotPresent
+
+# Service configuration
+service:
+  type: ClusterIP
+  port: 80
+
+# Ingress managed via kustomize (see ingress.yaml)
+ingress:
+  enabled: false
+
+# Resources
+resources:
+  limits:
+    cpu: 200m
+    memory: 256Mi
+  requests:
+    cpu: 100m
+    memory: 128Mi
+
+# Persistent volume for plugins
+persistentVolumeClaim:
+  enabled: false
+
+# Service account for cluster access
+serviceAccount:
+  create: true
+  annotations: {}
+
+# RBAC - give Headlamp full cluster access
+rbac:
+  create: true
+  clusterRole:
+    create: true
+    name: cluster-admin
--- a/scripts/deploy.sh
+++ b/scripts/deploy.sh
@@ -0,0 +1,122 @@
+#!/bin/bash
+# Deploy applications to the Kubernetes cluster
+
+set -e
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(dirname "$SCRIPT_DIR")"
+KUBECONFIG="${KUBECONFIG:-$HOME/.kube/config-roamflow}"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+log_info() {
+    echo -e "${GREEN}[INFO]${NC} $1"
+}
+
+log_warn() {
+    echo -e "${YELLOW}[WARN]${NC} $1"
+}
+
+log_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+# Ensure SSH tunnel is running
+ensure_tunnel() {
+    if ! pgrep -f "ssh.*6443.*roamflow-1" > /dev/null; then
+        log_info "Starting SSH tunnel..."
+        ssh -f -N -L 6443:127.0.0.1:6443 roamflow-1
+        sleep 1
+    fi
+}
+
+# Helm chart mappings: app -> (repo_name, repo_url, chart_name)
+declare -A HELM_CHARTS=(
+    ["headlamp"]="headlamp|https://headlamp-k8s.github.io/headlamp/|headlamp"
+    ["gitea"]="gitea-charts|https://dl.gitea.com/charts/|gitea"
+)
+
+# Add Helm repositories
+add_repos() {
+    log_info "Adding Helm repositories..."
+    for app in "${!HELM_CHARTS[@]}"; do
+        IFS='|' read -r repo_name repo_url chart_name <<< "${HELM_CHARTS[$app]}"
+        helm repo add "$repo_name" "$repo_url" 2>/dev/null || true
+    done
+    helm repo update
+}
+
+# Deploy a specific app
+deploy_app() {
+    local app=$1
+    local app_dir="$PROJECT_ROOT/apps/$app"
+
+    if [[ ! -d "$app_dir" ]]; then
+        log_error "App '$app' not found in $PROJECT_ROOT/apps/"
+        exit 1
+    fi
+
+    log_info "Deploying $app..."
+
+    # Apply namespace and other kustomize resources first
+    if [[ -f "$app_dir/kustomization.yaml" ]]; then
+        kubectl apply -k "$app_dir" --kubeconfig "$KUBECONFIG"
+    fi
+
+    # Deploy with Helm if values.yaml exists
+    if [[ -f "$app_dir/values.yaml" ]]; then
+        if [[ -n "${HELM_CHARTS[$app]}" ]]; then
+            IFS='|' read -r repo_name repo_url chart_name <<< "${HELM_CHARTS[$app]}"
+            helm upgrade --install "$app" "$repo_name/$chart_name" \
+                -f "$app_dir/values.yaml" \
+                -n "$app" \
+                --kubeconfig "$KUBECONFIG" \
+                --create-namespace
+        else
+            log_warn "No Helm chart configured for $app, skipping Helm deployment"
+        fi
+    fi
+
+    log_info "$app deployed successfully!"
+}
+
+# List available apps
+list_apps() {
+    echo "Available apps:"
+    for app_dir in "$PROJECT_ROOT/apps"/*/; do
+        if [[ -d "$app_dir" ]]; then
+            app_name=$(basename "$app_dir")
+            echo "  - $app_name"
+        fi
+    done
+}
+
+# Main
+main() {
+    ensure_tunnel
+    add_repos
+
+    if [[ "$1" == "--all" ]]; then
+        log_info "Deploying all apps..."
+        for app_dir in "$PROJECT_ROOT/apps"/*/; do
+            if [[ -d "$app_dir" ]]; then
+                app_name=$(basename "$app_dir")
+                deploy_app "$app_name"
+            fi
+        done
+    elif [[ "$1" == "--list" ]]; then
+        list_apps
+    elif [[ -n "$1" ]]; then
+        deploy_app "$1"
+    else
+        echo "Usage: $0 <app-name|--all|--list>"
+        list_apps
+        exit 1
+    fi
+}
+
+main "$@"