I’ve run into some situations when the build fails, perhaps because some processes don’t finish, and even setting a timeout doesn’t make the Jenkins job fail.

So, to fix this problem, I used try .. catch and error to make my Jenkins job failed, hopes this also helps you.

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前言

本篇记录两个在做 Jenkins 与 AIX 做持续集成得时候遇到的 Git clone 代码失败的问题，并已解决，分享出来或许能有所帮助。

1. Dependent module /usr/lib/libldap.a(libldap-2.4.so.2) could not be loaded.
2. 通过 SSH 进行 git clone 出现 Authentication failed

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最近使用 AIX 7.1 从 Bitbucket 下载代码的时候遇到了这个错误：

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最近在我使用 Artifactory Enterprise 遇到了上传制品非常缓慢的问题，在经过与 IT，Artifactory 管理员一起合作终于解决这个问题，在此分享一下这个问题的解决过程。

如果你也遇到类似或许有所帮助。

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I’m just documenting to myself that it was solved by following.

When I want to integrate the ESlint report with Jenkins. I encourage a problem

That is eslint-report.html display different with it on my local machine, and I also log to Jenkins server and grab the eslint-report.html to local, it works well.

I used HTML Publisher plugin to display the HTML report, but only the ESlint HTML report has problems other report work well, so I guess this problem may be caused by Jenkins.

Finally, I find it. (Stackoverflow URL)

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在使用 Git 提交代码之前，建议做以下这些设置。

叫指南有点夸张，因为它在有些情况下下不适用，比如你已经有了 .gitattributes 或 .editorconfig 等文件，那么有些设置就不用做了。

因此暂且叫他指北吧，它通常情况下还是很有用的。

废话不多说，看看都需要哪些设置吧。

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Why need branching naming convention

To better manage the branches on Git(I sued Bitbucket), integration with CI tool, Artifactory, and automation will be more simple and clear.

For example, good unified partition naming can help the team easily find and integrate without special processing. Therefore, you should unify the partition naming rules for all repositories.

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Problem

When you do CI with JFrog Artifactory when you want to download the entire folder artifacts, but maybe your IT doesn’t enable this function, whatever some seasons.

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What’s the problem?

Today I am having a problem where the Windows installer I created is not installing, and the following Windows installer box pops up.

But it works well in the previous build, and I didn’t make any code changes. It is strange, actually fix this problem is very easy but not easy to find.

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本文适用的是 Gradle 来构建和适用 JaCoCo。

分别介绍了 build.gradle 的文件配置，执行测试和生成报告，报告参数说明，以及如何忽略指定的包或类从而影响测试覆盖率的结果。

build.gradle 文件配置

比如使用 gradle 来管理的项目可以在 build.gradle 里添加如下代码

plugins {
    id 'jacoco'
}

jacoco {
    toolVersion = "0.8.5"
}

test {
    useJUnitPlatform()
    exclude '**/**IgnoreTest.class'  // 如果有 test case 不通过，如有必要可以通过这样忽略掉
    finalizedBy jacocoTestReport       // report is always generated after tests run
}

jacocoTestReport {
    dependsOn test // tests are required to run before generating the report
    reports {
        xml.enabled true
        csv.enabled false
        html.destination file("${buildDir}/reports/jacoco")
    }
}

执行测试，生成代码覆盖率报告

然后执行 gradle test 就可以了。之后可以可以在 build\reports\jacoco 目录下找到报告了。

重点是如何分析报告。打开 index.html，报告显示如下：

报告参数说明

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Python 不必多说，它是众多编程语言中最容易学习的动态类型语言。它的跨平台、易读、易写、丰富的 Packages 等众多特性，也是众多DevOps/测试/开发工程师是最常用的语言之一。

相信不少人用它完成了很多工作，但你是不是仅仅止步于功能的实现而忽略了去写出更加简洁，优美的 Pythonic 代码呢？

在我最开始用 Python 时，我还不知道 Pythonic 这个词，直到多年前一位资深的程序员在给我培训的时候提到了项目中有一些代码不够 Pythonic，需要重构。根据语境，我理解他的意思：就是 Python 的代码没有按照 Python 的方式来写。

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Problem

When you use Jenkins multibranch pipeline, you may want to have different default parameters settings for defferent branches build.

For example:

For develop/hotfix/release branches, except regular build, you also want to do some code analyzes, like code scanning, etc.
For other branches, like feature/bugfix or Pull Request that you just want to do a regular build.

So you need to have dynamic parameter settings for your multibranch pipeline job.

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背景

代码审查（Code Review），就是让别人来审查你的代码，其目的就是确保代码库的整体代码运行状况随着时间推移而不断改善。

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Today, when I tried to upgrade my team’s Jenkins server from Jenkins 2.235.1 to Jenkins 2.263.3, I met a problem that can not launch the Windows agent.

[2021-01-29 23:50:40] [windows-agents] Connecting to xxx.xxx.xxx.xxx
<!-- more -->
Checking if Java exists
java -version returned 11.0.2.
[2021-01-29 23:50:40] [windows-agents] Installing the Jenkins agent service
[2021-01-29 23:50:40] [windows-agents] Copying jenkins-agent.exe
ERROR: Unexpected error in launching an agent. This is probably a bug in Jenkins
Also: java.lang.Throwable: launched here
at hudson.slaves.SlaveComputer._connect(SlaveComputer.java:286)
at hudson.model.Computer.connect(Computer.java:435)
at hudson.slaves.SlaveComputer.doLaunchSlaveAgent(SlaveComputer.java:790)
...
...
at java.lang.Thread.run(Thread.java:748)
java.lang.NullPointerException
at hudson.os.windows.ManagedWindowsServiceLauncher.launch(ManagedWindowsServiceLauncher.java:298)

This issue had been raised in the Jenkins Jira project: JENKINS-63198 and JENKINS-63198

There is also a Windows Support Updates guide here that mentioned this problem.

Finally, I fixed this problem by the following steps:

1. Update windows-slaves-plugin to the lastest version 1.7 (fixes for Jenkins 2.248+)

Then the error should be like this

[2021-01-30 23:53:40] [windows-agents] Connecting to xxx.xxx.xxx.xxx
Checking if Java exists
java -version returned 11.0.2.
[2021-01-30 23:53:47] [windows-agents] Copying jenkins-agent.xml
[2021-01-30 23:53:48] [windows-agents] Copying agent.jar
[2021-01-30 23:53:48] [windows-agents] Starting the service
ERROR: Unexpected error in launching an agent. This is probably a bug in Jenkins
org.jinterop.dcom.common.JIException: Unknown Failure
	at org.jvnet.hudson.wmi.Win32Service$Implementation.start(Win32Service.java:149)
Caused: java.lang.reflect.InvocationTargetException
	at sun.reflect.GeneratedMethodAccessor219.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.kohsuke.jinterop.JInteropInvocationHandler.invoke(JInteropInvocationHandler.java:140)
Also:   java.lang.Throwable: launched here

2. Then change jenkins-agent.exe.config file. remove or comment out this line <supportedRuntime version="v2.0.50727" /> as below

also do this for jenkins-slave.exe.config in case it also exists.

<configuration>
  <runtime>
    <!-- see http://support.microsoft.com/kb/936707 -->
    <generatePublisherEvidence enabled="false"/>
  </runtime>
  <startup>
    <!-- this can be hosted either on .NET 2.0 or 4.0 -->
    <!-- <supportedRuntime version="v2.0.50727" /> -->
    <supportedRuntime version="v4.0" />
  </startup>
</configuration>

3. Then try to Launch agent.

If it still does not work and has this error message “.NET Framework 2.0 or later is required on this computer to run a Jenkins agent as a Windows service”, you need to upgrade your .NET Framework.

Here is a link for update .NET Framework.

Hopefully, this could help you to fix connect the issue of the Windows agent. Let me know in case of any questions.

DevOps 实际上是什么意思？🤔

DevOps 是一种软件开发方法，涉及持续开发，持续测试，持续集成，部署和监视。这一系列过程跨越了传统上孤立的开发和运营团队，DevOps 试图消除它们之间的障碍。

因此，DevOps 工程师基本上与 Development 和 Operations 团队合作。它是这两个主要部分之间的链接。

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