Initial commit: Essential Oil Formula Cost Calculator

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# 精油配方计算器 - 部署文档
## 架构
- **前端**: 静态 HTML由 FastAPI 直接 serve
- **后端**: FastAPI + SQLite端口 8000
- **部署**: Kubernetes (k3s) on `oci.euphon.net`
- **域名**: https://oil.oci.euphon.net
- **TLS**: Traefik + Let's Encrypt (自动)
## 目录结构
```
├── backend/
│ ├── main.py # FastAPI 应用
│ ├── database.py # SQLite 数据库操作
│ ├── defaults.json # 默认精油和配方数据(首次启动时 seed
│ └── requirements.txt
├── frontend/
│ └── index.html # 前端页面
├── deploy/
│ ├── namespace.yaml
│ ├── deployment.yaml
│ ├── service.yaml
│ ├── pvc.yaml # 1Gi 持久卷,存放 SQLite 数据库
│ ├── ingress.yaml
│ ├── setup-kubeconfig.sh # 生成受限 kubeconfig 的脚本
│ └── kubeconfig # 受限 kubeconfig仅 oil-calculator namespace
├── Dockerfile
└── doc/deploy.md
```
## 首次部署
已完成,以下为记录。
```bash
# 1. SSH 到服务器
ssh fam@oci.euphon.net
# 2. 上传项目
scp oil-calc.tar.gz fam@oci.euphon.net:/tmp/
ssh fam@oci.euphon.net "mkdir -p ~/oil-calculator && cd ~/oil-calculator && tar xzf /tmp/oil-calc.tar.gz"
# 3. 构建并推送镜像
cd ~/oil-calculator
docker build -t registry.oci.euphon.net/oil-calculator:latest .
docker push registry.oci.euphon.net/oil-calculator:latest
# 4. 部署 k8s 资源
cd deploy
kubectl apply -f namespace.yaml
kubectl apply -f pvc.yaml
kubectl apply -f deployment.yaml
kubectl apply -f service.yaml
kubectl apply -f ingress.yaml
# 5. 需要 regcred 才能拉取私有镜像(从已有 ns 复制)
kubectl get secret regcred -n guitar -o yaml | sed 's/namespace: guitar/namespace: oil-calculator/' | kubectl apply -f -
```
## 更新部署
```bash
# 在本地打包上传
cd "/Users/hera/Hera DOCS/Projects/Essential Oil Formula Cost Calculator"
tar czf /tmp/oil-calc.tar.gz Dockerfile backend/ frontend/ deploy/
scp /tmp/oil-calc.tar.gz fam@oci.euphon.net:/tmp/
# SSH 到服务器构建并重启
ssh fam@oci.euphon.net
cd ~/oil-calculator && tar xzf /tmp/oil-calc.tar.gz
docker build -t registry.oci.euphon.net/oil-calculator:latest .
docker push registry.oci.euphon.net/oil-calculator:latest
kubectl rollout restart deploy/oil-calculator -n oil-calculator
```
或者使用受限 kubeconfig仅重启不含构建
```bash
KUBECONFIG=deploy/kubeconfig kubectl rollout restart deploy/oil-calculator
```
## 受限 Kubeconfig
文件位于 `deploy/kubeconfig`,权限范围:
- **Namespace**: `oil-calculator` only
- **ServiceAccount**: `oil-calculator-deployer`
- **权限**: pods, services, deployments, replicasets, ingresses, PVC, configmaps, secrets, pods/log 的完整 CRUD
- **无法**访问其他 namespace 或集群级资源
重新生成:`bash deploy/setup-kubeconfig.sh`
## K8s 配置要点
- **Ingress class**: `traefik`
- **TLS annotation**: `traefik.ingress.kubernetes.io/router.tls.certresolver: le`
- **镜像仓库**: `registry.oci.euphon.net`(需要 `regcred` secret
- **数据持久化**: PVC 挂载到 `/data`SQLite 数据库在 `/data/oil_calculator.db`
## API 端点
| Method | Path | 说明 |
|--------|------|------|
| GET | /api/oils | 所有精油列表 |
| POST | /api/oils | 添加/更新精油 |
| DELETE | /api/oils/{name} | 删除精油 |
| GET | /api/recipes | 所有配方列表 |
| POST | /api/recipes | 新增配方 |
| PUT | /api/recipes/{id} | 更新配方 |
| DELETE | /api/recipes/{id} | 删除配方 |
| GET | /api/tags | 所有标签 |
| POST | /api/tags | 新增标签 |
| DELETE | /api/tags/{name} | 删除标签 |