first commit: one-api base code + SAAS plan document

Dockerfile

@@ -0,0 +1,47 @@
+FROM --platform=$BUILDPLATFORM node:16 AS builder
+
+WORKDIR /web
+COPY ./VERSION .
+COPY ./web .
+
+RUN npm install --prefix /web/default & \
+    npm install --prefix /web/berry & \
+    npm install --prefix /web/air & \
+    wait
+
+RUN DISABLE_ESLINT_PLUGIN='true' REACT_APP_VERSION=$(cat ./VERSION) npm run build --prefix /web/default & \
+    DISABLE_ESLINT_PLUGIN='true' REACT_APP_VERSION=$(cat ./VERSION) npm run build --prefix /web/berry & \
+    DISABLE_ESLINT_PLUGIN='true' REACT_APP_VERSION=$(cat ./VERSION) npm run build --prefix /web/air & \
+    wait
+
+FROM golang:alpine AS builder2
+
+RUN apk add --no-cache \
+    gcc \
+    musl-dev \
+    sqlite-dev \
+    build-base
+
+ENV GO111MODULE=on \
+    CGO_ENABLED=1 \
+    GOOS=linux
+
+WORKDIR /build
+
+ADD go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+COPY --from=builder /web/build ./web/build
+
+RUN go build -trimpath -ldflags "-s -w -X 'github.com/songquanpeng/one-api/common.Version=$(cat VERSION)' -linkmode external -extldflags '-static'" -o one-api
+
+FROM alpine:latest
+
+RUN apk add --no-cache ca-certificates tzdata
+
+COPY --from=builder2 /build/one-api /
+
+EXPOSE 3000
+WORKDIR /data
+ENTRYPOINT ["/one-api"]