chore: switch docker base image, use system rocksdb for faster compilation

.github/workflows/release-please.yml

@@ -37,6 +37,11 @@ jobs:
       - uses: actions/checkout@v4
         if: ${{ needs.release-please.outputs.release_created }}
 
+      - name: Install dependencies
+        run: |
+          sudo apt-get update -y
+          sudo apt-get install -y librocksdb-dev
+
       - name: Install stable toolchain
         uses: actions-rs/toolchain@v1
         if: ${{ needs.release-please.outputs.release_created }}

README.md

@@ -359,3 +359,39 @@ For running protolint, install it as python package `protolint-bin`:
 # source /tmp/varfish-server-worker/bin/activate
 # pip install protolint-bin
 ```
+
+### Building from scratch
+To reduce compile times, we recommend using a pre-built version of `rocksdb`, either from the system package manager or e.g. via `conda`:
+
+```bash
+# Ubuntu
+sudo apt-get install librocksdb-dev
+
+# Conda
+conda install -c conda-forge rocksdb
+```
+
+In either case, either add
+```toml
+[env]
+ROCKSDB_LIB_DIR = "/usr/lib/" # in case of the system package manager, adjust the path accordingly for conda
+SNAPPY_LIB_DIR = "/usr/lib/"  # same as above
+```
+to `.cargo/config.toml` or set the environment variables `ROCKSDB_LIB_DIR` and `SNAPPY_LIB_DIR` to the appropriate paths:
+
+```bash
+export ROCKSDB_LIB_DIR=/usr/lib/
+export SNAPPY_LIB_DIR=/usr/lib/
+```
+
+By default, the environment variables are defined in the `.cargo/config.toml` as described above, i.e. may need adjustments if not using the system package manager.
+
+To build the project, run:
+```bash
+cargo build --release
+```
+
+To install the project locally, run:
+```bash
+cargo install --path .
+```

utils/docker/Dockerfile

@@ -13,18 +13,16 @@
 # Builder
 # ---------------------------------------------------------------------------
 
-# Pinning Rust version for now because of this issue:
-#
-# - https://github.com/rust-lang/rust/issues/95926
-FROM rust:1-bookworm AS builder
+# Use ubuntu:noble as the base image
+FROM ubuntu:noble AS builder
 
-# Build dependencies first.
-#
-# Install dependencies for compilation of C code (e.g., rocksdb).
+# Install Rust toolchain and dependencies for compilation of C code (e.g., rocksdb)
 RUN apt-get update && \
-    apt-get install -y clang
-# Add the needed Cargo components.
-RUN rustup component add rustfmt
+    apt-get install -y unzip wget curl build-essential clang librocksdb-dev libsqlite3-dev && \
+    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y && \
+    . $HOME/.cargo/env && \
+    rustup component add rustfmt
+
 # Install build dependency `protoc`.
 COPY utils/install-protoc.sh /tmp
 RUN PREFIX=/usr/local bash /tmp/install-protoc.sh
@@ -49,18 +47,20 @@ COPY protos /usr/src/varfish-server-worker/protos/
 # COPY utils/alpine-linker-script.sh /usr/src/varfish-server-worker/utils/
 # RUN chmod a+rx /usr/src/varfish-server-worker/utils/alpine-linker-script.sh
 # COPY .cargo /usr/src/varfish-server-worker/.cargo/
-## Touch main.rs to prevent cached release build.
+
+# Touch main.rs to prevent cached release build.
 RUN touch /usr/src/varfish-server-worker/src/main.rs
-# This is the actual application build.
-RUN cargo build --release
+
+# Build the application
+RUN /root/.cargo/bin/cargo build --release
 
 # ---------------------------------------------------------------------------
 # Runtime
 # ---------------------------------------------------------------------------
 
-FROM debian:bookworm-slim AS runtime
+FROM ubuntu:noble AS runtime
 
-# Install dependencies (and cleanup afterwards)
+# Install dependencies (and cleanup afterward)
 RUN apt-get update && \
     apt-get install -y libsqlite3-0 && \
     apt-get clean autoclean && \