feat(homelab): start implementing route generation

nix/homelab/scripts/generate-chains.sh

@@ -6,6 +6,7 @@ NAMESPACES=(
   "home"
   "longhorn-system"
   "pihole-system"
+  "media"
 )
 
 OUTPUT_FILE="kustomize/traefik/chains.yaml"

nix/homelab/scripts/generate-routes.sh

@@ -0,0 +1,155 @@
+#!/usr/bin/env bash
+
+set -e
+
+# Route definitions: name:hostname:port:protocol:private
+# - name: service name (required)
+# - hostname: custom hostname, use '-' for default (name.lucalise.ca)
+# - port: service port (required)
+# - protocol: TCP (default) or UDP
+# - private: true/false (default false) - adds private-networks middleware
+ROUTES=(
+  "sonarr:-:8989:TCP:true"
+  "radarr:-:7878:TCP:true"
+  "prowlarr:-:9696:TCP:true"
+  "bazarr:-:6767:TCP:true"
+  "jellyfin:media:8096:TCP:false"
+  "home-assistant:-:8123:TCP:true"
+)
+
+DOMAIN="lucalise.ca"
+OUTPUT_DIR="kustomize/routes"
+
+generate_http_route() {
+  local name="$1"
+  local hostname="$2"
+  local port="$3"
+  local protocol="$4"
+  local private="$5"
+
+  if [[ -z "$hostname" || "$hostname" == "-" ]]; then
+    hostname="$name"
+  fi
+
+  if [[ -z "$protocol" ]]; then
+    protocol="TCP"
+  fi
+
+  if [[ -z "$private" ]]; then
+    private="false"
+  fi
+
+  local fqdn="${hostname}.${DOMAIN}"
+
+  local filters_section=""
+  if [[ "$private" == "true" ]]; then
+    filters_section="      - filters:
+          - type: ExtensionRef
+            extensionRef:
+              group: traefik.io
+              kind: Middleware
+              name: private-networks
+        backendRefs:"
+  else
+    filters_section="      - backendRefs:"
+  fi
+
+  cat <<EOF
+apiVersion: gateway.networking.k8s.io/v1
+kind: HTTPRoute
+metadata:
+  name: ${name}
+  namespace: media
+spec:
+  parentRefs:
+    - name: traefik-gateway
+      namespace: kube-system
+  hostnames:
+    - "${fqdn}"
+  rules:
+${filters_section}
+          - name: ${name}
+            port: ${port}
+EOF
+}
+
+write_kustomization() {
+  local kustomization_file="${OUTPUT_DIR}/../kustomization.yaml"
+  local temp_file=$(mktemp)
+
+  # Collect new route paths
+  local route_paths=()
+  for route in "${ROUTES[@]}"; do
+    IFS=':' read -r name _ _ _ _ <<< "$route"
+    route_paths+=("  - ./routes/${name}.yaml")
+  done
+
+  local in_resources=false
+  local resources_written=false
+  
+  while IFS= read -r line; do
+    # Detect resources section
+    if [[ "$line" == "resources:" ]]; then
+      in_resources=true
+      echo "$line" >> "$temp_file"
+      continue
+    fi
+
+    # If in resources section
+    if [[ "$in_resources" == true ]]; then
+      # Check if line is a resource entry (starts with "  - ")
+      if [[ "$line" =~ ^[[:space:]]*-[[:space:]] ]]; then
+        # Skip route entries, keep everything else
+        if [[ "$line" =~ \./routes/ ]]; then
+          continue
+        else
+          echo "$line" >> "$temp_file"
+        fi
+      else
+        # End of resources section - write new routes before moving on
+        if [[ "$resources_written" == false ]]; then
+          for route_path in "${route_paths[@]}"; do
+            echo "$route_path" >> "$temp_file"
+          done
+          resources_written=true
+        fi
+        in_resources=false
+        echo "$line" >> "$temp_file"
+      fi
+    else
+      echo "$line" >> "$temp_file"
+    fi
+  done < "$kustomization_file"
+
+  # If file ended while still in resources section, write routes now
+  if [[ "$in_resources" == true && "$resources_written" == false ]]; then
+    for route_path in "${route_paths[@]}"; do
+      echo "$route_path" >> "$temp_file"
+    done
+  fi
+
+  mv "$temp_file" "$kustomization_file"
+  echo "Updated ${kustomization_file} with ${#route_paths[@]} routes"
+}
+
+main() {
+  mkdir -p "${OUTPUT_DIR}"
+
+  for route in "${ROUTES[@]}"; do
+    IFS=':' read -r name hostname port protocol private <<< "$route"
+    
+    echo "Generating route for ${name}..."
+    
+    output_file="${OUTPUT_DIR}/${name}.yaml"
+    generate_http_route "$name" "$hostname" "$port" "$protocol" "$private" > "$output_file"
+    
+    echo "  -> ${output_file}"
+  done
+
+  echo ""
+  write_kustomization
+  echo ""
+  echo "Done! Generated ${#ROUTES[@]} routes."
+}
+
+main "$@"