dokemon/Dockerfile.agent at main · masterivanic/dokemon · GitHub

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# syntax=docker/dockerfile:1

# Build the Go application
FROM --platform=$BUILDPLATFORM golang:latest AS build-stage

# Set default TARGETARCH if not provided (fallback to build platform)
ARG TARGETARCH
ARG TARGETOS=linux

# Install Docker CLI
RUN set -eux; \
    if [ -z "${TARGETARCH}" ]; then \
      case "$(uname -m)" in \
        x86_64) export TARGETARCH=amd64 ;; \
        aarch64) export TARGETARCH=arm64 ;; \
        armv7l) export TARGETARCH=arm ;; \
        *) echo "Unsupported architecture: $(uname -m)"; exit 1 ;; \
      esac; \
    fi; \
    case "${TARGETARCH}" in \
      amd64|x86_64) \
        curl -fsSLO "https://download.docker.com/linux/static/stable/x86_64/docker-28.1.1.tgz" \
        ;; \
      arm64|aarch64) \
        curl -fsSLO "https://download.docker.com/linux/static/stable/aarch64/docker-28.1.1.tgz" \
        ;; \
      arm) \
        curl -fsSLO "https://download.docker.com/linux/static/stable/armhf/docker-28.1.1.tgz" \
        ;; \
      *) \
        echo "Unsupported architecture: ${TARGETARCH}"; \
        exit 1 \
        ;; \
    esac; \
    tar xzvf "docker-28.1.1.tgz" --strip-components=1 -C /bin docker/docker; \
    rm "docker-28.1.1.tgz"

# Install Docker Compose
RUN set -eux; \
    if [ -z "${TARGETARCH}" ]; then \
      case "$(uname -m)" in \
        x86_64) export TARGETARCH=amd64 ;; \
        aarch64) export TARGETARCH=arm64 ;; \
        armv7l) export TARGETARCH=arm ;; \
        *) echo "Unsupported architecture: $(uname -m)"; exit 1 ;; \
      esac; \
    fi; \
    case "${TARGETARCH}" in \
      amd64|x86_64) \
        curl -fsSL "https://github.com/docker/compose/releases/download/v2.36.0/docker-compose-linux-x86_64" -o /bin/docker-compose \
        ;; \
      arm64|aarch64) \
        curl -fsSL "https://github.com/docker/compose/releases/download/v2.36.0/docker-compose-linux-aarch64" -o /bin/docker-compose \
        ;; \
      arm) \
        curl -fsSL "https://github.com/docker/compose/releases/download/v2.36.0/docker-compose-linux-armv7" -o /bin/docker-compose \
        ;; \
    esac; \
    chmod +x /bin/docker-compose

WORKDIR /app

COPY go.mod go.sum ./
RUN go mod download

COPY . ./

# Special handling for ARMv7 Go build
RUN if [ "${TARGETARCH}" = "arm" ]; then \
      export GOARCH=arm GOARM=7; \
    fi && \
    CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} go build -o /dokemon-agent ./cmd/agent

RUN mkdir -p /data

# Final image
FROM gcr.io/distroless/base-debian11

WORKDIR /

COPY --from=build-stage /dokemon-agent /dokemon-agent
COPY --from=build-stage /data /data
COPY --from=build-stage /bin/docker /bin/docker
COPY --from=build-stage /bin/docker-compose /bin/docker-compose

ENTRYPOINT ["/dokemon-agent"]