Added drone configs.

.drone.yml

@@ -0,0 +1,43 @@
+---
+kind: pipeline
+type: docker
+name: default
+
+platform:
+  os: linux
+  arch: amd64
+
+workspace:
+  base: /src
+
+steps:
+- name: build
+  pull: if-not-exists
+  image: leophys/fenix-builder:0.1
+  commands:
+  - /src/gradlew clean app:assembleGeckoNightly
+  - /src/sign.sh
+  environment:
+    KEY_PASSWORD:
+      from_secret: key_password
+    KEY_PATH: /secrets/key.jks
+  volumes:
+  - name: builds_output
+    path: /builds/
+  - name: secrets
+    path: /secrets
+
+volumes:
+- name: builds_output
+  host:
+    path: /var/builds/fenix
+- name: secrets
+  host:
+    path: /var/drone/secrets
+
+trigger:
+  branch:
+  - master
+  event:
+  - push
+  - cron

sign.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+set -ex
+
+for APK in /src/app/geckoNightly/fenixNightly/*apk
+do
+    echo "${KEY_PASSWORD}"|${ANDROID_HOME}/build-tools/${ANDROID_BUILD_TOOLS_VERSION}/apksigner sign --ks "${KEY_PATH}" "${APK}"
+    APK_NAME=$(basename ${APK})
+    cp ${APK} /builds/${APK_NAME}
+done