Build binaries from local code

.gitignore

@@ -2,6 +2,7 @@
 /tmp_check
 /tmp_install
 /tmp_check_cli
+/neon_install
 __pycache__/
 test_output/
 .vscode

scripts/get_local_binaries.sh

@@ -0,0 +1,36 @@
+#!/usr/bin/env bash
+
+# This script builds deployable binaries from local code.
+
+set -e
+mkdir -p neon_install/bin
+
+# Building the image from scratch can take minutes, since we're recompiling everything,
+# including dependencies. To save time we remember the container id so it can be reused
+# for incremental compilation.
+CONTAINER_ID_PATH="neon_install/container_id"
+
+# Get the CONTAINER_ID, or create a container if one doesn't exist.
+if [ -e $CONTAINER_ID_PATH ]
+then
+    CONTAINER_ID=$(cat $CONTAINER_ID_PATH)
+    echo "Using existing container with id: $CONTAINER_ID"
+else
+    echo "No existing container found. Creating ..."
+    docker build \
+        --tag "neon:local" \
+        --build-arg "REPOSITORY=neondatabase" \
+        # Don't use cachepot, it will only slow things down. Instead
+        # maybe reuse the same container to get incremental compilation.
+        --build-arg "RUSTC_WRAPPER=''" \
+        .
+	CONTAINER_ID=$(docker create neon:local)
+fi
+
+# TODO if files changed locally, cp the code into the image and incrementally re-compile.
+# Or maybe mount code as a volume?
+
+# Copy files out of the container
+# TODO reuse the second part of .github/ansible/get_binaries.sh to get all the binaries
+set -x
+docker cp ${CONTAINER_ID}:/usr/local/bin/pageserver neon_install/bin/