官方Doc：https://docs.bazel.build/versions/master/install-ubuntu.html
使用Bazel定制的APT存儲庫 (recommended)
1. Install JDK 8
安裝JDK 8使用下面命令：:
sudo apt-get install openjdk-8-jdk
在 Ubuntu 14.04 LTS你可能需要使用 PPA:
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update && sudo apt-get install oracle-java8-installer 2. 添加Bazel分發URI作為包源（一次設置）
輸入下面命令
echo "deb [arch=amd64] http://storage.googleapis.com/bazel-apt stable jdk1.8" | sudo tee /etc/apt/sources.list.d/bazel.list curl https://bazel.build/bazel-release.pub.gpg | sudo apt-key add - If you want to install the testing version of Bazel, replace stable with testing.
3. 安裝和更新 Bazel
sudo apt-get update && sudo apt-get install bazel 一旦安裝，您可以升級到更新版本的Bazel：
sudo apt-get upgrade bazel