move store and run pnpm install on first run

.gitignore

@@ -58,6 +58,5 @@ phpcs.xml
 *.code-workspace
 /.vscode/settings.json
 
-.pnpm-store/
 .pnpm-debug.log
 .pnpm-error.log

tools/docker/bin/monorepo

@@ -16,9 +16,21 @@ source "$MONOREPO_ROOT/.github/versions.sh"
 
 # Build the image if it doesn't exist
 if ! docker image inspect jetpack-monorepo:latest >/dev/null 2>&1; then
-    echo "Pulling monorepo image..."
-    docker pull automattic/jetpack-monorepo:latest
-    docker tag automattic/jetpack-monorepo:latest jetpack-monorepo:latest
+    if [ "${BUILD_LOCAL:-}" = "1" ]; then
+        echo "Building monorepo image locally..."
+        docker build \
+            --build-arg PHP_VERSION="$PHP_VERSION" \
+            --build-arg COMPOSER_VERSION="$COMPOSER_VERSION" \
+            --build-arg NODE_VERSION="$NODE_VERSION" \
+            --build-arg PNPM_VERSION="$PNPM_VERSION" \
+            -t jetpack-monorepo:latest \
+            -f "$MONOREPO_ROOT/tools/docker/Dockerfile.monorepo" \
+            "$MONOREPO_ROOT/tools/docker"
+    else
+        echo "Pulling monorepo image..."
+        docker pull automattic/jetpack-monorepo:latest
+        docker tag automattic/jetpack-monorepo:latest jetpack-monorepo:latest
+    fi
 fi
 
 # Run the command in the container
@@ -31,5 +43,6 @@ docker run --rm -it \
     -e NPM_CONFIG_USERCONFIG=/root/.npmrc \
     -e NPM_CONFIG_CACHE=/root/.npm \
     -e PNPM_HOME=/root/.local/share/pnpm \
+    -e PNPM_STORE_DIR=/root/.pnpm-store \
     jetpack-monorepo:latest \
     "$@"

tools/docker/bin/monorepo-entrypoint.sh

@@ -0,0 +1,13 @@
+#!/bin/bash
+
+# Exit on error
+set -e
+
+# Check if jetpack command is available
+if ! pnpm jetpack --help >/dev/null 2>&1; then
+    echo "Setting up Jetpack CLI..."
+    pnpm install
+fi
+
+# Execute the passed command
+exec "$@"