Add optional compose for rust-synapse-compress-state

compress_state_entrypoint.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+set -e
+
+BINARY="/build/synapse_auto_compressor"
+REPO_DIR="/build/rust-synapse-compress-state"
+DB_PASS=$(cat /run/secrets/db_password)
+CONN="postgresql://synapse:${DB_PASS}@db:5432/synapse"
+CHUNK_SIZE="${STATE_COMPRESS_CHUNK_SIZE:-500}"
+CHUNKS="${STATE_COMPRESS_CHUNKS:-100}"
+INTERVAL="${STATE_COMPRESS_INTERVAL:-86400}"
+
+# Build from source if binary doesn't exist
+if [ ! -f "$BINARY" ]; then
+  echo "[compress-state] Binary not found, building from source..."
+  apk add --no-cache git openssl-dev openssl-libs-static perl make musl-dev jemalloc-dev
+  rm -rf "$REPO_DIR"
+  git clone https://github.com/matrix-org/rust-synapse-compress-state "$REPO_DIR"
+  cd "$REPO_DIR"
+  cargo build --release -p synapse_auto_compressor
+  cp target/release/synapse_auto_compressor "$BINARY"
+  echo "[compress-state] Build complete"
+  # Clean up source to save space
+  rm -rf "$REPO_DIR"
+else
+  echo "[compress-state] Using cached binary"
+fi
+
+# Run compressor in a loop
+while true; do
+  echo "[compress-state] Running at $(date)"
+  "$BINARY" -p "$CONN" -c "$CHUNK_SIZE" -n "$CHUNKS" || echo "[compress-state] Error: $?"
+  echo "[compress-state] Done. Sleeping ${INTERVAL}s"
+  sleep "$INTERVAL"
+done