[#226] Update to manage secrets with Github Environments for Staging and Production

[luongvo]

• Close Update to manage secrets with Github Environments for Staging and Production #226

What happened 👀

• Remove unnecessary token when checking out in bump_version workflow.
• Fix: exporting multi-lines env files using quote "".
• Convert some secrets to variables.
• Move some secrets to the Environments config.

Insight 📝

• To echo a multi-line variable in GitHub Actions, use quote "" https://stackoverflow.com/a/22101842/2100084 ✅
• ENV_PRODUCTION and ENV_STAGING have been moved to the Environments ✅
• FIREBASE_ANDROID_APP_ID_PRODUCTION, FIREBASE_ANDROID_APP_ID_STAGING, FIREBASE_IOS_APP_ID_PRODUCTION, and FIREBASE_IOS_APP_ID_STAGING have been converted to variables and moved to the Environments ✅
• ANDROID_SIGNING_PROPERTIES_BASE64 is now become ANDROID_SIGNING_PROPERTIES without base64 encoded by using a multi-line variable ✅

Proof Of Work 📹

• The bump_version workflow works properly without token to check out https://github.com/nimblehq/flutter-templates/actions/runs/5746348294/job/15575671352 👉 [Chore] Bump version to 1.11.1 #264 ✅

• Updated secrets & variables management by using Environment

  

• The app can read secrets properly from .env

  

[doannimble]

We may need to check and update writing multiple lines later. Look good so far 👍

[luongvo]

We may need to check and update writing multiple lines later. Look good so far 👍

@doannimble It has been verified to work properly with this .env structure https://github.com/nimblehq/flutter-templates/blob/develop/sample/.env.sample ✅

[doannimble]

We may need to check and update writing multiple lines later. Look good so far 👍

@doannimble It has been verified to work properly with this .env structure https://github.com/nimblehq/flutter-templates/blob/develop/sample/.env.sample ✅

Nice @luongvo . Actually, it can write and read, but it may be incorrect. Have you tried to print out SECRET and REST_API_ENDPOINT (on app) to check (with the build made by github action)?.

[luongvo]

@doannimble Yes, the last build can not run to show the staging name with a black screen

flutter-templates/sample/lib/main.dart

Lines 117 to 123 in b2851fd

	Text(
	FlutterConfig.get('SECRET'),
	style: const TextStyle(
	color: AppColors.nimblePrimaryBlue,
	fontSize: 24,
	),
	),