message_buffer: Add Dockerfile with caching (#778)

* message_buffer: Add Dockerfile with caching

This dockerfile ensures as little cache invalidation as possible
through layer-caching and BuildKit cache mounts.

* dockerignowe -> dockerignore

* message_buffer/Dockerfile: Fix the final cached target move

message_buffer/.dockerignore

@@ -0,0 +1,2 @@
+target
+node_modules

message_buffer/Dockerfile

@@ -0,0 +1,36 @@
+ARG RUST_VERSION=1.69
+FROM rust:${RUST_VERSION}
+
+RUN apt-get update && apt-get install -qq nodejs npm curl
+
+RUN npm install --global yarn
+
+RUN rustup default ${RUST_VERSION}
+
+ARG SOLANA_VERSION=v1.14.11
+RUN curl -sSfL https://release.solana.com/${SOLANA_VERSION}/install > install_solana.sh
+RUN sh install_solana.sh
+ENV PATH="/root/.local/share/solana/install/active_release/bin:$PATH"
+
+RUN --mount=type=cache,target=target cargo install --git https://github.com/coral-xyz/anchor avm --locked --force --target-dir target
+
+ARG ANCHOR_VERSION=0.27.0
+RUN --mount=type=cache,target=target CARGO_TARGET_DIR=target avm install ${ANCHOR_VERSION} && avm use ${ANCHOR_VERSION}
+
+# Trigger Anchor's BPF tools download for caching
+RUN anchor init decoy-crate
+RUN cd decoy-crate && anchor build
+RUN rm -rf decoy-crate
+
+WORKDIR message_buffer
+
+# layer-cache cargo deps
+ADD Cargo.toml Cargo.lock ./
+ADD programs/message_buffer/Cargo.toml programs/message_buffer/
+RUN mkdir -p programs/message_buffer/src && touch programs/message_buffer/src/lib.rs
+RUN cargo fetch --locked
+
+ADD . .
+
+RUN --mount=type=cache,target=target anchor build -p message_buffer && cp -r target target_tmp
+RUN rm -rf target && mv target_tmp target