119 lines
4.0 KiB
Docker
119 lines
4.0 KiB
Docker
# Alpine-based MUSL static binary builder for C-Relay
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# Produces truly portable binaries with zero runtime dependencies
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FROM alpine:3.19 AS builder
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# Install build dependencies
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RUN apk add --no-cache \
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build-base \
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musl-dev \
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git \
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cmake \
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pkgconfig \
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autoconf \
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automake \
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libtool \
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openssl-dev \
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openssl-libs-static \
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zlib-dev \
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zlib-static \
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curl-dev \
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curl-static \
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sqlite-dev \
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sqlite-static \
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linux-headers \
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wget \
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bash
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# Set working directory
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WORKDIR /build
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# Build libsecp256k1 static (cached layer - only rebuilds if Alpine version changes)
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RUN cd /tmp && \
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git clone https://github.com/bitcoin-core/secp256k1.git && \
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cd secp256k1 && \
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./autogen.sh && \
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./configure --enable-static --disable-shared --prefix=/usr \
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CFLAGS="-fPIC" && \
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make -j$(nproc) && \
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make install && \
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rm -rf /tmp/secp256k1
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# Build libwebsockets static with minimal features (cached layer)
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RUN cd /tmp && \
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git clone --depth 1 --branch v4.3.3 https://github.com/warmcat/libwebsockets.git && \
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cd libwebsockets && \
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mkdir build && cd build && \
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cmake .. \
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-DLWS_WITH_STATIC=ON \
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-DLWS_WITH_SHARED=OFF \
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-DLWS_WITH_SSL=ON \
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-DLWS_WITHOUT_TESTAPPS=ON \
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-DLWS_WITHOUT_TEST_SERVER=ON \
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-DLWS_WITHOUT_TEST_CLIENT=ON \
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-DLWS_WITHOUT_TEST_PING=ON \
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-DLWS_WITH_HTTP2=OFF \
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-DLWS_WITH_LIBUV=OFF \
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-DLWS_WITH_LIBEVENT=OFF \
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-DLWS_IPV6=ON \
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-DCMAKE_BUILD_TYPE=Release \
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-DCMAKE_INSTALL_PREFIX=/usr \
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-DCMAKE_C_FLAGS="-fPIC" && \
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make -j$(nproc) && \
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make install && \
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rm -rf /tmp/libwebsockets
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# Copy only submodule configuration and git directory
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COPY .gitmodules /build/.gitmodules
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COPY .git /build/.git
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# Clean up any stale submodule references (nips directory is not a submodule)
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RUN git rm --cached nips 2>/dev/null || true
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# Initialize submodules (cached unless .gitmodules changes)
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RUN git submodule update --init --recursive
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# Copy nostr_core_lib source files (cached unless nostr_core_lib changes)
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COPY nostr_core_lib /build/nostr_core_lib/
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# Build nostr_core_lib with required NIPs (cached unless nostr_core_lib changes)
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# Disable fortification in build.sh to prevent __*_chk symbol issues
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# NIPs: 001(Basic), 006(Keys), 013(PoW), 017(DMs), 019(Bech32), 044(Encryption), 059(Gift Wrap - required by NIP-17)
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RUN cd nostr_core_lib && \
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chmod +x build.sh && \
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sed -i 's/CFLAGS="-Wall -Wextra -std=c99 -fPIC -O2"/CFLAGS="-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0 -Wall -Wextra -std=c99 -fPIC -O2"/' build.sh && \
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rm -f *.o *.a 2>/dev/null || true && \
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./build.sh --nips=1,6,13,17,19,44,59
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# Copy c-relay source files LAST (only this layer rebuilds on source changes)
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COPY src/ /build/src/
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COPY Makefile /build/Makefile
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# Build c-relay with full static linking (only rebuilds when src/ changes)
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# Disable fortification to avoid __*_chk symbols that don't exist in MUSL
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RUN gcc -static -O2 -Wall -Wextra -std=c99 \
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-U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0 \
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-I. -Inostr_core_lib -Inostr_core_lib/nostr_core \
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-Inostr_core_lib/cjson -Inostr_core_lib/nostr_websocket \
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src/main.c src/config.c src/dm_admin.c src/request_validator.c \
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src/nip009.c src/nip011.c src/nip013.c src/nip040.c src/nip042.c \
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src/websockets.c src/subscriptions.c src/api.c src/embedded_web_content.c \
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-o /build/c_relay_static_musl \
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nostr_core_lib/libnostr_core_x64.a \
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-lwebsockets -lssl -lcrypto -lsqlite3 -lsecp256k1 \
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-lcurl -lz -lpthread -lm -ldl
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# Strip binary to reduce size
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RUN strip /build/c_relay_static_musl
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# Verify it's truly static
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RUN echo "=== Binary Information ===" && \
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file /build/c_relay_static_musl && \
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ls -lh /build/c_relay_static_musl && \
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echo "=== Checking for dynamic dependencies ===" && \
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(ldd /build/c_relay_static_musl 2>&1 || echo "Binary is static") && \
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echo "=== Build complete ==="
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# Output stage - just the binary
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FROM scratch AS output
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COPY --from=builder /build/c_relay_static_musl /c_relay_static_musl |