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ds2api/DEPLOY.en.md
2026-02-16 18:04:12 +08:00

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# DS2API Deployment Guide (Go)
Language: [中文](DEPLOY.md) | [English](DEPLOY.en.md)
This guide is aligned with the current Go codebase.
## Deployment Modes
- Local run: `go run ./cmd/ds2api`
- Docker: `docker-compose up -d`
- Vercel: serverless entry at `api/index.go`
- Linux service mode: systemd
## 0. Prerequisites
- Go 1.24+
- Node.js 20+ (only if you need to build WebUI locally)
- `config.json` or `DS2API_CONFIG_JSON`
## 1. Local Run
```bash
git clone https://github.com/CJackHwang/ds2api.git
cd ds2api
cp config.example.json config.json
# edit config.json
go run ./cmd/ds2api
```
Default port is `5001` (override with `PORT`).
Build WebUI if `/admin` reports missing assets:
```bash
./scripts/build-webui.sh
```
## 2. Docker Deployment
```bash
cp .env.example .env
# edit .env
docker-compose up -d
docker-compose logs -f
```
Rebuild after updates:
```bash
docker-compose up -d --build
```
Notes:
- `Dockerfile` uses multi-stage build (WebUI + Go binary)
- Container entry command is `/usr/local/bin/ds2api`
## 3. Vercel Deployment
- Serverless entry: `api/index.go`
- Rewrites and cache headers: `vercel.json`
- Legacy `builds` has been removed to avoid the `unused-build-settings` warning
Minimum environment variables:
- `DS2API_ADMIN_KEY`
- `DS2API_CONFIG_JSON` (raw JSON or Base64)
Optional:
- `VERCEL_TOKEN`
- `VERCEL_PROJECT_ID`
- `VERCEL_TEAM_ID`
- `DS2API_ACCOUNT_MAX_INFLIGHT` (per-account inflight limit, default `2`)
- `DS2API_ACCOUNT_CONCURRENCY` (alias of the same setting)
Recommended concurrency is computed dynamically as `account_count * per_account_inflight_limit` (default is `account_count * 2`).
After deploy, verify:
- `/healthz`
- `/v1/models`
- `/admin`
## 3.1 GitHub Release Automation
This repo includes `.github/workflows/release-artifacts.yml`:
- Triggers only on Release `published`
- Does not run on `push`
- Builds Linux/macOS/Windows archives and uploads them to Release Assets
- Generates `sha256sums.txt` for integrity checks
## 3.2 Vercel Build Troubleshooting
If you see an error like:
```text
Error: Command failed: go build -ldflags -s -w -o .../bootstrap .../main__vc__go__.go
```
it is usually caused by invalid Go build flag settings in Vercel
(`-ldflags` not passed as a single argument).
How to fix:
1. Open Vercel Project Settings -> Build and Development Settings
2. Clear custom Go Build Flags / Build Command (recommended)
3. If ldflags must be used, set `-ldflags=\"-s -w\"` so it is passed as one argument
4. Ensure `go.mod` uses a supported version (this repo uses `go 1.24`)
5. Redeploy (preferably with cache cleared)
Another common root cause (Go monorepo + `internal/`):
```text
... use of internal package ds2api/internal/server not allowed
```
This usually happens when the Vercel Go entrypoint imports `internal/...` directly.
This repo now avoids that by using a public bridge package: `api/index.go` -> `ds2api/app` -> `internal/server`.
## 4. Reverse Proxy (Nginx)
Disable buffering for SSE:
```nginx
location / {
proxy_pass http://127.0.0.1:5001;
proxy_http_version 1.1;
proxy_set_header Connection "";
proxy_buffering off;
proxy_cache off;
chunked_transfer_encoding on;
tcp_nodelay on;
}
```
## 5. systemd Example (Linux)
```ini
[Unit]
Description=DS2API (Go)
After=network.target
[Service]
Type=simple
WorkingDirectory=/opt/ds2api
Environment=PORT=5001
Environment=DS2API_CONFIG_PATH=/opt/ds2api/config.json
Environment=DS2API_ADMIN_KEY=admin
ExecStart=/opt/ds2api/ds2api
Restart=always
RestartSec=5
[Install]
WantedBy=multi-user.target
```
Common commands:
```bash
sudo systemctl daemon-reload
sudo systemctl enable ds2api
sudo systemctl start ds2api
sudo systemctl status ds2api
```
## 6. Post-Deploy Checks
```bash
curl -s http://127.0.0.1:5001/healthz
curl -s http://127.0.0.1:5001/readyz
curl -s http://127.0.0.1:5001/v1/models
```
If admin UI is required:
```bash
curl -s http://127.0.0.1:5001/admin
```