android: update bazel flag config (#684)

Description: #9767 introduced the bazel option and #663 brought it into envoy mobile. This PR changes the bazel config for android to turn on the logger by default when building on android. It also updates a couple other stale flags and docs.
Risk Level: low
Testing: tested locally and saw logs

Fixes #34

Signed-off-by: Jose Nino <jnino@lyft.com>
Signed-off-by: JP Simard <jp@jpsim.com>

mobile/.bazelrc

@@ -27,7 +27,7 @@ build --javabase=@bazel_tools//tools/jdk:jdk
 build:ios --define=manual_stamp=manual_stamp
 
 # Default flags for builds targeting Android
-build:android --fat_apk_cpu=x86_64
+build:android --define logger=android
 
 # Common flags for release builds
 # TODO: Enable `--copt -ggdb3`. Issues were encountered previously with this:
@@ -42,4 +42,5 @@ build:release-ios --config=release-common
 build:release-ios --copt=-fembed-bitcode
 
 # Flags for release builds targeting Android or the JVM
+build:release-android --config=android
 build:release-android --config=release-common

mobile/docs/root/development/performance/cpu_battery_impact.rst

@@ -94,7 +94,7 @@ a process listening to traffic sent over this connection.
 
 Getting the build:
 
-1. Build the library using ``bazel build android_dist --config=android``
+1. Build the library using ``bazel build android_dist --config=android --fat_apk_cpu=armeabi-v7a``
 2. Control: ``bazel mobile-install //examples/kotlin/control:hello_control_kt``
 3. Envoy: ``bazel mobile-install //examples/kotlin/hello_world:hello_envoy_kt --fat_apk_cpu=armeabi-v7a``
 

mobile/docs/root/start/building/building.rst

@@ -51,7 +51,7 @@ 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 --fat_apk_cpu=<arch1,arch2>``
 
 Upon completion of the build, you'll see an ``envoy.aar`` file at :repo:`dist/envoy.aar <dist>`.
 
@@ -63,7 +63,7 @@ an example of how this artifact may be used.
 **When building the artifact for release** (usage outside of development), be sure to include the
 ``--config=release-android`` option, along with the architectures for which the artifact is being built:
 
-``bazel build android_dist --config=release-android --fat_apk_cpu=x86,x86_64,armeabi-v7a,arm64-v8a``
+``bazel build android_dist --config=release-android --fat_apk_cpu=x86,armeabi-v7a,arm64-v8a``
 
 For a demo of a working app using this artifact, see the :ref:`hello_world` example.
 

mobile/docs/root/start/examples/hello_world.rst

@@ -23,7 +23,7 @@ Next, make sure you have an Android simulator running.
 
 Run the :repo:`sample app <examples/java/hello_world>` using the following Bazel build rule:
 
-``bazel mobile-install //examples/java/hello_world:hello_envoy --fat_apk_cpu=x86``
+``bazel mobile-install //examples/java/hello_world:hello_envoy --fat_apk_cpu=<arch1,arch2>``
 
 You should see a new app installed on your simulator called ``Hello Envoy``.
 Open it up, and requests will start flowing!
@@ -38,7 +38,7 @@ Next, make sure you have an Android simulator running.
 
 Run the :repo:`sample app <examples/kotlin/hello_world>` using the following Bazel build rule:
 
-``bazel mobile-install //examples/kotlin/hello_world:hello_envoy_kt --fat_apk_cpu=x86``
+``bazel mobile-install //examples/kotlin/hello_world:hello_envoy_kt --fat_apk_cpu=<arch1,arch2>``
 
 You should see a new app installed on your simulator called ``Hello Envoy Kotlin``.
 Open it up, and requests will start flowing!