50 lines
1.2 KiB
Docker
50 lines
1.2 KiB
Docker
# Build stage
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FROM golang:1.21-alpine AS builder
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WORKDIR /app
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# Install build dependencies
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RUN apk add --no-cache git ca-certificates
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# Copy all source files
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COPY . .
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# Remove any outdated/corrupted go.sum and let Go regenerate a pristine, valid one
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RUN rm -f go.sum && go mod tidy && go mod download
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# Build the application
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RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -o blogging-cms .
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# Runtime stage
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FROM alpine:latest
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WORKDIR /app
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# Receive PORT build arg from Coolify / Docker Compose (defaults to 8080 if unset)
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ARG PORT=8080
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# Set PORT environment variable for runtime, HEALTHCHECK, and Go application
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ENV PORT=${PORT}
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# Install runtime dependencies
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RUN apk add --no-cache ca-certificates tzdata
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# Copy built application
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COPY --from=builder /app/blogging-cms .
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# Copy templates and static files
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COPY templates ./templates
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COPY static ./static
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# Create non-root user
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RUN addgroup -g 1000 appuser && \
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adduser -D -u 1000 -G appuser appuser && \
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chown -R appuser:appuser /app
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USER appuser
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EXPOSE ${PORT}
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HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
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CMD wget --quiet --tries=1 --spider http://localhost:${PORT}/ || exit 1
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CMD ["./blogging-cms"] |