bazel: add release configuration

.bazelrc

@@ -1,3 +1,5 @@
+import ./envoy/.bazelrc
+
 build \
   --define=google_grpc=disabled \
   --define=hot_restart=disabled \
@@ -19,3 +21,8 @@ build \
 build:ios --define=manual_stamp=manual_stamp
 
 build:android --fat_apk_cpu=x86,x86_64,armeabi-v7a,arm64-v8a
+
+build:release \
+  --config=sizeopt \
+  --copt -ggdb3 \
+  --ios_multi_cpus=i386,x86_64,armv7,arm64

docs/root/start/building/building.rst

@@ -49,7 +49,7 @@ Android AAR
 Envoy Mobile can be compiled into an ``.aar`` file for use with Android apps.
 This command is defined in the main :repo:`BUILD <BUILD>` file of the repo, and may be run locally:
 
-``bazel build android_dist --config=android``
+``bazel build android_dist --config=android --config=release # omit release for development``
 
 Upon completion of the build, you'll see an ``envoy.aar`` file at :repo:`dist/envoy.aar <dist>`.
 
@@ -62,6 +62,9 @@ an example of how this artifact may be used.
 
 For a demo of a working app using this artifact, see the :ref:`hello_world` example.
 
+When building the artifact for release (usage outside of development), be sure to include ``--config=release``
+in addition to ``--config=android``.
+
 .. _ios_framework:
 
 --------------------
@@ -71,7 +74,7 @@ iOS static framework
 Envoy Mobile supports being compiled into a ``.framework`` directory for consumption by iOS apps.
 This command is defined in the main :repo:`BUILD <BUILD>` file of the repo, and may be run locally:
 
-``bazel build ios_dist --config=ios``
+``bazel build ios_dist --config=ios --config=release # omit release for development``
 
 Upon completion of the build, you'll see a ``Envoy.framework`` directory at
 :repo:`dist/Envoy.framework <dist>`.
@@ -84,4 +87,7 @@ example of how this artifact may be used.
 
 For a demo of a working app using this artifact, see the :ref:`hello_world` example.
 
-.. _releases: https://github.com/lyft/envoy-mobile/releases
+When building the artifact for release (usage outside of development), be sure to include ``--config=release``
+in addition to ``--config=ios``.
+
+.. _releases: https://github.com/lyft/envoy-mobile/releases