build: add ENABLE_ANALYTICS to entrypoint

.env.example

@@ -0,0 +1,4 @@
+FLUTTER_VERSION=3.7.7
+ANDROID_BUILD_TOOLS_VERSION=30.0.3
+PLATFORMS_VERSIONS=28 31 33
+ENABLE_ANALYTICS=true

Dockerfile

@@ -69,6 +69,10 @@ RUN git clone --depth 1 --branch "$flutter_version" https://github.com/flutter/f
     && flutter config --no-enable-macos-desktop \
     && flutter doctor
 
+COPY ./docker-entrypoint.sh /docker-entrypoint.sh
+
+ENTRYPOINT [ "/docker-entrypoint.sh" ]
+
 FROM flutter as android
 
 LABEL org.opencontainers.image.source="https://github.com/gmeligio/flutter-docker-image" \

docker-compose.yml

@@ -5,6 +5,8 @@ services:
       target: flutter
       args:
         flutter_version: $FLUTTER_VERSION
+    environment:
+      ENABLE_ANALYTICS: $ENABLE_ANALYTICS
   
   android:
     build:
@@ -14,6 +16,8 @@ services:
         flutter_version: $FLUTTER_VERSION
         android_build_tools_version: $ANDROID_BUILD_TOOLS_VERSION
         platforms_versions: $PLATFORMS_VERSIONS
+    environment:
+      ENABLE_ANALYTICS: $ENABLE_ANALYTICS
 
   test:
     build:
@@ -23,4 +27,6 @@ services:
         flutter_version: $FLUTTER_VERSION
         android_build_tools_version: $ANDROID_BUILD_TOOLS_VERSION
         platforms_versions: $PLATFORMS_VERSIONS
+    environment:
+      ENABLE_ANALYTICS: $ENABLE_ANALYTICS
     working_dir: /home/flutter/test_app/android

docker-entrypoint.sh

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+analytic_tools_str="Dart and Flutter"
+
+if [ "$ENABLE_ANALYTICS" = "true" ]; then
+    echo "Received 'ENABLE_ANALYTICS=true'.\nEnabling analytics for $analytic_tools_str."
+    dart --enable-analytics
+    flutter config --analytics
+else
+    echo "Analytics are opt-in and disabled by default in $analytic_tools_str.\nTo enable analytics, pass the environment variable 'ENABLE_ANALYTICS=true' when starting the container."
+fi
+
+exec "$@"

readme.md

@@ -1,5 +1,10 @@
 # Docker image for Flutter
 
+## Features
+
+- [x] Analytics disabled by default
+- [x] Minimal image to run flutter for Android platform in CI
+
 ## Alpha stability
 
 This package is experimental and it's in active development