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first iteration of agent-style worker and sensor containers.

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This commit is contained in:
David Culbreth
2026-03-23 12:49:15 -05:00
parent d4c6240485
commit 8af8c1af9c
47 changed files with 1667 additions and 1029 deletions
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37
docker/Dockerfile.agent
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@@ -1,8 +1,7 @@
# Multi-stage Dockerfile for the Attune universal worker agent
# Multi-stage Dockerfile for the Attune injected agent binaries
#
# Builds a statically-linked attune-agent binary using musl, suitable for
# injection into ANY container as a sidecar or init container. The binary
# has zero runtime dependencies — no glibc, no libssl, no shared libraries.
# Builds statically-linked `attune-agent` and `attune-sensor-agent` binaries
# using musl, suitable for injection into arbitrary runtime containers.
#
# Stages:
# builder - Cross-compile with musl for a fully static binary
@@ -24,8 +23,8 @@
# # volumes:
# # - agent_binary:/shared
#
# Note: The agent binary is part of the worker crate (--bin attune-agent).
# It connects to the Attune API and executes actions inside the target container.
# Note: `attune-agent` lives in the worker crate and `attune-sensor-agent`
# lives in the sensor crate.
ARG RUST_VERSION=1.92
ARG DEBIAN_VERSION=bookworm
@@ -71,13 +70,14 @@ COPY crates/cli/Cargo.toml ./crates/cli/Cargo.toml
# Create minimal stub sources so cargo can resolve the workspace and fetch deps.
# These are ONLY used for `cargo fetch` — never compiled.
# NOTE: The worker crate has TWO binary targets (attune-worker and attune-agent),
# so we create stubs for both to satisfy the workspace resolver.
# NOTE: The worker crate has TWO binary targets and the sensor crate now has
# two binary targets as well, so we create stubs for all of them.
RUN mkdir -p crates/common/src && echo "" > crates/common/src/lib.rs && \
mkdir -p crates/api/src && echo "fn main(){}" > crates/api/src/main.rs && \
mkdir -p crates/executor/src && echo "fn main(){}" > crates/executor/src/main.rs && \
mkdir -p crates/executor/benches && echo "fn main(){}" > crates/executor/benches/context_clone.rs && \
mkdir -p crates/sensor/src && echo "fn main(){}" > crates/sensor/src/main.rs && \
echo "fn main(){}" > crates/sensor/src/agent_main.rs && \
mkdir -p crates/core-timer-sensor/src && echo "fn main(){}" > crates/core-timer-sensor/src/main.rs && \
mkdir -p crates/worker/src && echo "fn main(){}" > crates/worker/src/main.rs && \
echo "fn main(){}" > crates/worker/src/agent_main.rs && \
@@ -97,22 +97,25 @@ RUN --mount=type=cache,target=/usr/local/cargo/registry,sharing=shared \
COPY migrations/ ./migrations/
COPY crates/ ./crates/
# Build ONLY the attune-agent binary, statically linked with musl.
# Build the injected agent binaries, statically linked with musl.
# Uses a dedicated cache ID (agent-target) so the musl target directory
# doesn't collide with the glibc target cache used by other Dockerfiles.
RUN --mount=type=cache,target=/usr/local/cargo/registry,sharing=shared \
--mount=type=cache,target=/usr/local/cargo/git,sharing=shared \
--mount=type=cache,id=agent-target,target=/build/target,sharing=locked \
cargo build --release --target x86_64-unknown-linux-musl --bin attune-agent && \
cp /build/target/x86_64-unknown-linux-musl/release/attune-agent /build/attune-agent
cargo build --release --target x86_64-unknown-linux-musl --bin attune-agent --bin attune-sensor-agent && \
cp /build/target/x86_64-unknown-linux-musl/release/attune-agent /build/attune-agent && \
cp /build/target/x86_64-unknown-linux-musl/release/attune-sensor-agent /build/attune-sensor-agent
# Strip the binary to minimize size
RUN strip /build/attune-agent
# Strip the binaries to minimize size
RUN strip /build/attune-agent && strip /build/attune-sensor-agent
# Verify the binary is statically linked and functional
RUN ls -lh /build/attune-agent && \
# Verify the binaries are statically linked and functional
RUN ls -lh /build/attune-agent /build/attune-sensor-agent && \
file /build/attune-agent && \
ldd /build/attune-agent 2>&1 || true
file /build/attune-sensor-agent && \
ldd /build/attune-agent 2>&1 || true && \
ldd /build/attune-sensor-agent 2>&1 || true
# ============================================================================
# Stage 2: agent-binary - Minimal image with just the static binary
@@ -122,6 +125,7 @@ RUN ls -lh /build/attune-agent && \
FROM scratch AS agent-binary
COPY --from=builder /build/attune-agent /usr/local/bin/attune-agent
COPY --from=builder /build/attune-sensor-agent /usr/local/bin/attune-sensor-agent
ENTRYPOINT ["/usr/local/bin/attune-agent"]
@@ -149,5 +153,6 @@ ENTRYPOINT ["/usr/local/bin/attune-agent"]
FROM busybox:1.36 AS agent-init
COPY --from=builder /build/attune-agent /usr/local/bin/attune-agent
COPY --from=builder /build/attune-sensor-agent /usr/local/bin/attune-sensor-agent
ENTRYPOINT ["/usr/local/bin/attune-agent"]