1 files changed, 22 insertions, 0 deletions
diff --git a/nginx-entrypoint.sh b/nginx-entrypoint.sh
new file mode 100755
index 0000000..e6ed329
--- /dev/null
+++ b/nginx-entrypoint.sh
@@ -0,0 +1,22 @@
+#!/usr/bin/bash
+
+WWW_DIR=/usr/share/nginx/html
+ENV_PREFIX=FRONTEND_
+INJECT_FILE_PATH="${WWW_DIR}/inject.js"
+
+cat >> "${INJECT_FILE_PATH}" << EOF
+window.injectedEnv = {
+  NODE_ENV: "production",
+EOF
+
+for envrow in $(printenv); do
+  IFS='=' read -r key value <<< "${envrow}"
+
+  if [[ $key == "${ENV_PREFIX}"* ]]; then
+    echo "  ${key}: \"${value}\"," >> "${INJECT_FILE_PATH}"
+  fi
+done
+
+echo "};" >> "${INJECT_FILE_PATH}"
+
+[ -z "$@" ] && nginx -g 'daemon off;' || "$@"