# rdev-api - Go API server for controlling claudebox pods
# v0.4 - API Server

# Build stage
FROM golang:1.23-alpine AS builder

WORKDIR /app

# Install git for go mod download
RUN apk add --no-cache git

# Copy go mod files first for layer caching
COPY go.mod go.sum ./
RUN go mod download

# Copy source code
COPY . .

# Build the binary
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags="-s -w" -o rdev-api ./cmd/rdev-api

# Runtime stage
FROM alpine:3.19

# Install kubectl for exec into pods
RUN apk add --no-cache ca-certificates curl \
    && curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl" \
    && chmod +x kubectl \
    && mv kubectl /usr/local/bin/

# Create non-root user
RUN adduser -D -g '' appuser

WORKDIR /app

# Copy binary from builder
COPY --from=builder /app/rdev-api .

# Use non-root user
USER appuser

# Expose port
EXPOSE 8080

# Health check
HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
    CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health || exit 1

# Run the server
ENTRYPOINT ["./rdev-api"]