# syntax=docker/dockerfile:1

# Stage 1: build the Go CLI from source
FROM golang:tip-alpine3.23 AS builder

WORKDIR /src

# Cache module downloads first
COPY go.mod go.sum ./
RUN go mod download

# Copy the rest of the source code
COPY . .

# Build the leetcode-go binary from the ctl package
RUN CGO_ENABLED=0 go build -mod=mod -o leetcode-go ./ctl

# Stage 2: minimal runtime image
FROM alpine:3.23

# Install certificates for TLS if needed by cobra/http clients
RUN apk --no-cache add ca-certificates

WORKDIR /app

# Copy the binary from builder
COPY --from=builder /src/leetcode-go ./leetcode-go

# Default command
ENTRYPOINT ["./leetcode-go"]
CMD ["help"]

Dockerfile
.dockerignore
**/*.md
**/*.yaml
**/*.yml
**/*.toml
**/*.go.map
**/*.log
**/*.tmp
**/testdata/**
**/website/public/**
**/website/static/**
.git
node_modules
vendor
*/vendor
*.exe
*.dll
*.so
**/*.test.go
**/*.test

ERROR: permission denied while trying to connect to the docker API at unix:///var/run/docker.sock

# --------------------------------------------
# LeetCode-Go CLI build container
# --------------------------------------------

# Stage 1: Builder
FROM golang:1.19-alpine AS builder

# Install build dependencies
RUN apk add --no-cache git

# Set working directory for module-aware build
WORKDIR /build

# Cache module downloads
COPY go.mod go.sum ./
RUN go mod download

# Copy all sources
COPY . .

# Build the leetcode-go CLI from the ctl package
RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 \
    go build -mod=mod -o leetcode-go ./ctl

# Stage 2: Runtime image
FROM alpine:3.20

# Install CA certs for TLS if needed
RUN apk add --no-cache ca-certificates

WORKDIR /root

# Copy the built binary from the builder
COPY --from=builder /build/leetcode-go /usr/local/bin/leetcode-go

RUN chmod +x /usr/local/bin/leetcode-go

ENTRYPOINT ["leetcode-go"]

**/*.md
**/testdata/**
**/.git
**/.github
vendor
node_modules
*.log
*.tmp
.DS_Store
website/public
website/content
website/static
website/themes
/tmp
*.out
*.exe

ERROR: permission denied while trying to connect to the docker API at unix:///var/run/docker.sock

# Build a production-ready binary for LeetCode-Go (cli) using a multi-stage build
# Stage 1: builder with full Go toolchain
FROM golang:tip-alpine3.23 AS builder

# Install git for module fetching if needed
RUN apk add --no-cache git

WORKDIR /build

# Pre-copy go.mod files to leverage layer caching
COPY go.mod go.sum ./
RUN go mod download

# Copy the full source tree
COPY . .

# Disable CGO for portability
ENV CGO_ENABLED=0

# Build the leetcode-go binary from the ctl package
RUN go build -mod=mod -o leetcode-go ./ctl

# Stage 2: runtime image
FROM alpine:3.23

# Install CA certificates for https requests
RUN apk add --no-cache ca-certificates

WORKDIR /root

# Copy the built binary from the builder
COPY --from=builder /build/leetcode-go /root/leetcode-go

# Ensure the binary is executable
RUN chmod +x /root/leetcode-go

ENTRYPOINT ["./leetcode-go"]

# Ignore common and large files
.git
.gitignore
node_modules
vendor
website/public
website/static
.DS_Store
*.log
*.tmp
*.bak

# Docker-related
Dockerfile
.dockerignore