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首页 > 解决方案 > 以生产就绪方式执行 bazel-buildfarm，无需“bazel run”

java - 以生产就绪方式执行 bazel-buildfarm，无需“bazel run”

问题描述

Bazel-buildfarm的自述文件说：

In general do not execute server binaries with bazel run, since bazel does not support running multiple targets.

这听起来像是bazel run为本地测试目的而设计的，而不是为可以运行多个作业的生产服务器而设计的。但是我找不到显示如何运行 bazel 服务器的文档。较旧的 Dockerfile运行 bazel build，然后使用 java 执行生成的 jar 文件。我在我的测试机器上试过这个并得到以下错误：

[vagrant@localhost bazel-buildfarm]$ java -Djava.util.logging.config.file=/config/logging.properties -jar bazel-bin/src/main/java/build/buildfarm/buildfarm-server.jar
no main manifest attribute, in bazel-bin/src/main/java/build/buildfarm/buildfarm-server.jar

之前的构建似乎工作： 

[vagrant@localhost bazel-buildfarm]$ bazel build //src/main/java/build/buildfarm:buildfarm-server
Starting local Bazel server and connecting to it...
[...]
INFO: Analyzed target //src/main/java/build/buildfarm:buildfarm-server (94 packages loaded, 1623 targets configured).
INFO: Found 1 target...
INFO: Deleting stale sandbox base /home/vagrant/.cache/bazel/_bazel_vagrant/277990f61896f4bac21fb997fb976b70/sandbox
Target //src/main/java/build/buildfarm:buildfarm-server up-to-date:
  bazel-bin/src/main/java/build/buildfarm/buildfarm-server.jar
  bazel-bin/src/main/java/build/buildfarm/buildfarm-server
INFO: Elapsed time: 11.180s, Critical Path: 0.61s
INFO: 0 processes.
INFO: Build completed successfully, 1 total action

并且jar文件存在： 

[vagrant@localhost bazel-buildfarm]$ l bazel-bin/src/main/java/build/buildfarm/buildfarm-server
-r-xr-xr-x. 1 vagrant vagrant 17K Nov 11 11:27 bazel-bin/src/main/java/build/buildfarm/buildfarm-server

我刚刚使用具有所有依赖项（gcc gcc-c++）的 CentOS 存储库安装了 bazel，并克隆了 bazel-buildfarm 的 git 存储库。和 

bazel run //src/main/java/build/buildfarm:buildfarm-server $(pwd)/examples/server.config.example

服务器至少可以成功启动： 

INFO: Analyzed target //src/main/java/build/buildfarm:buildfarm-server (0 packages loaded, 0 targets configured).
INFO: Found 1 target...
Target //src/main/java/build/buildfarm:buildfarm-server up-to-date:
  bazel-bin/src/main/java/build/buildfarm/buildfarm-server.jar
  bazel-bin/src/main/java/build/buildfarm/buildfarm-server
INFO: Elapsed time: 0.325s, Critical Path: 0.00s
INFO: 0 processes.
INFO: Build completed successfully, 1 total action
INFO: Build completed successfully, 1 total action
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Nov 12, 2019 3:08:13 PM build.buildfarm.server.BuildFarmServer <init>
INFO: buildfarm-server-c6735a2a-2c1b-473e-9d3e-14fe5d01c27d initialized

我究竟做错了什么？还是有另一种方法可以以生产就绪的方式运行 bazel？

平台：CentOS 7.7.1908 和 Vagrant 上的 Bazel 1.1.0

标签： javajarbazel

解决方案

虽然我不知道任何关于 buildfarm 的具体信息，但您可能--在使用 Bazel 运行的目标及其参数之间缺少双破折号 ( )。你的命令行应该是这样的：

bazel run //src/main/java/build/buildfarm:buildfarm-server -- $(pwd)/examples/server.config.example

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