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java - JClouds-Chef 未引导和配置虚拟机

转载 作者:行者123 更新时间:2023-12-01 12:43:40 30 4
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我正在尝试获取以下内容JClouds-Chef代码 (v1.7.3) 在全新的 Linux VM 上引导 Chef 客户端,然后执行运行列表以使用应用程序堆栈实际配置该 VM (典型_app):

public class ChefPlugin {
public static void main(String[] args) {
ChefPlugin.provision();
System.out.println("And done!");
System.exit(0);
}

public static provision() {
String vmIp = "myapp01";
String vmSshUsername = "myadmin";
String vmSshPassword = "12345";

String endpoint = "https://mychefserver";
String client = "myuser";
String validator = "chef-validator";
String clientCredential = Files.toString(new File("C:\\Users\\myuser\\sandbox\\chef\\myuser.pem"), Charsets.UTF_8);
String validatorCredential = Files.toString(new File("C:\\Users\\myuser\\sandbox\\chef\\chef-validator.pem"), Charsets.UTF_8);

Properties props = new Properties();
props.put(ChefProperties.CHEF_VALIDATOR_NAME, validator);
props.put(ChefProperties.CHEF_VALIDATOR_CREDENTIAL, validatorCredential);
props.put(Constants.PROPERTY_RELAX_HOSTNAME, "true");
props.put(Constants.PROPERTY_TRUST_ALL_CERTS, "true");

System.out.println("Setup complete.");

ChefContext ctx = ContextBuilder.newBuilder("chef")
.endpoint(endpoint)
.credentials(client, clientCredential)
.overrides(props)
.modules(ImmutableSet.of(new SshjSshClientModule())) //
.buildView(ChefContext.class);
ChefService chef = ctx.getChefService();

List<String> runlist = new RunListBuilder().addRole("typicalapp").build();

ArrayList<String> runList2 = new ArrayList<String>();
for(String item : runlist) {
runList2.add(item);
}

BootstrapConfig bootstrapConfig = BootstrapConfig.builder().runList(runList2).build();

System.out.println("Configured the bootstrapper.");

chef.updateBootstrapConfigForGroup("jclouds-chef", bootstrapConfig);
Statement bootstrap = chef.createBootstrapScriptForGroup("jclouds-chef");
SshClient.Factory sshFactory = ctx.unwrap().utils()
.injector().getInstance(Key.get(new TypeLiteral<SshClient.Factory>() {}));
SshClient ssh = sshFactory.create(HostAndPort.fromParts(vmIp, 22),
LoginCredentials.builder().user(vmSshUsername).password(vmSshPassword).build());

ssh.connect();

System.out.println("Connected to SSH.");
try {
String rawScript = bootstrap.render(OsFamily.UNIX);
System.out.println("Raw script rendered.");
ExecResponse result = ssh.exec(rawScript);

System.out.println("Bootstrap script executed...");
} catch(Throwable t) {
System.out.println("Exception: " + t.getMessage());
} finally {
ssh.disconnect();
System.out.println("SSH closed.");
}
}
}

当我运行此命令时,我从 SLF4J 获得以下输出:

Setup complete.
Configured the bootstrapper.
[main] INFO net.schmizz.sshj.common.SecurityUtils - BouncyCastle registration succeeded
[main] WARN net.schmizz.sshj.DefaultConfig - Disabling high-strength ciphers: cipher strengths apparently limited by JCE policy
[main] INFO net.schmizz.sshj.transport.TransportImpl - Client identity string: SSH-2.0-SSHJ_0_8_1_SNAPSHOT
[main] INFO net.schmizz.sshj.transport.TransportImpl - Server identity string: SSH-2.0-OpenSSH_6.6p1 Ubuntu-2ubuntu1
Connected to SSH.
Raw script rendered.
[main] INFO net.schmizz.sshj.connection.channel.direct.SessionChannel - Will request to exec `setupPublicCurl || exit 1
curl -q -s -S -L --connect-timeout 10 --max-time 600 --retry 20 -X GET https://www.opscode.com/chef/install.sh |(bash)
mkdir -p /etc/chef
cat >> /etc/chef/client.rb <<-'END_OF_JCLOUDS_FILE'
require 'rubygems'
require 'ohai'
o = Ohai::System.new
o.all_plugins
node_name "jclouds-chef-" + o[:ipaddress]
log_level :info
log_location STDOUT
validation_client_name "chef-validator"
chef_server_url "https://mychefserver"
END_OF_JCLOUDS_FILE
cat >> /etc/chef/validation.pem <<-'END_OF_JCLOUDS_FILE'
-----BEGIN RSA PRIVATE KEY-----
<omitted for security purposes>
-----END RSA PRIVATE KEY-----

END_OF_JCLOUDS_FILE
cat >> /etc/chef/first-boot.json <<-'END_OF_JCLOUDS_FILE'
{"id":"jclouds-chef","run_list":["role[typical_app]"]}
END_OF_JCLOUDS_FILE
chef-client -j /etc/chef/first-boot.json
`
Bootstrap script executed...
[main] INFO net.schmizz.sshj.transport.TransportImpl - Disconnected - BY_APPLICATION
SSH closed.
And done!

当我通过 SSH 连接到服务器 (myapp01) 时,如果我运行 which ruby​​,我会看到 Ruby 已安装。然而,which Chef-client 不产生输出,which java 也不产生输出。服务器上也没有 /etc/chef 目录。这让我认为我的代码只部分工作,并且可能只在虚拟机上安装 Ruby,而没有其他任何东西。最重要的是,除非我在“And did!”打印语句之后放置一个 System.exit(0) ,否则代码永远不会退出。这让我觉得有一个后台/工作线程(可能是一个 SSH 进程在服务器上做某事)没有返回/完成。

这里没有抛出任何错误或异常。

我的问题:

  1. 谁能明白为什么这段代码不起作用(我的意思是,“工作”似乎只是部分安装了 Chef 客户端,甚至没有安装 Java,而 Java 是典型_app 角色)?
  2. 我的代码中是否遗漏了任何阻止后台线程完成的内容?为什么它永远不会退出?

要重现,请使用以下 Maven POM 获取依赖项,然后完全按照原样运行上面的代码(只需使用您自己的 Chef 服务器和 Linux VM)。

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<properties>
<jclouds.version>1.7.3</jclouds.version>
</properties>
<groupId>com.mycompany.app</groupId>
<artifactId>my-app</artifactId>
<version>1.0-SNAPSHOT</version>
<dependencies>
<dependency>
<groupId>org.apache.jclouds.driver</groupId>
<artifactId>jclouds-sshj</artifactId>
<version>${jclouds.version}</version>
</dependency>
<dependency>
<groupId>org.apache.jclouds.api</groupId>
<artifactId>chef</artifactId>
<version>${jclouds.version}</version>
</dependency>
</dependencies>
</project>

更新:这是我在运行 @Ignasi Barrera 的建议更改后得到的 /tmp/stderr 文件:

--2014-07-22 10:58:14--  https://opscode-omnibus-packages.s3.amazonaws.com/ubuntu/13.04/x86_64/chef_11.12.8-2_amd64.deb
Resolving opscode-omnibus-packages.s3.amazonaws.com (opscode-omnibus-packages.s3.amazonaws.com)... 176.32.100.240
Connecting to opscode-omnibus-packages.s3.amazonaws.com (opscode-omnibus-packages.s3.amazonaws.com)|176.32.100.240|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 33399362 (32M) [application/x-debian-package]
Saving to: ‘/tmp/install.sh.10185/chef_11.12.8-2_amd64.deb’

0K .......... .......... .......... .......... .......... 0% 908K 36s
50K .......... .......... .......... .......... .......... 0% 1.13M 32s
100K .......... .......... .......... .......... .......... 0% 26.9M 22s
150K .......... .......... .......... .......... .......... 0% 1.36M 22s
200K .......... .......... .......... .......... .......... 0% 17.2M 18s
... omitted for brevity
32400K .......... .......... .......... .......... .......... 99% 2.64M 0s
32450K .......... .......... .......... .......... .......... 99% 26.2M 0s
32500K .......... .......... .......... .......... .......... 99% 31.9M 0s
32550K .......... .......... .......... .......... .......... 99% 6.12M 0s
32600K .......... ...... 100% 4.09M=7.1s

2014-07-22 10:58:22 (4.49 MB/s) - ‘/tmp/install.sh.10185/chef_11.12.8-2_amd64.deb’ saved [33399362/33399362]

最佳答案

这里的主要挑战是您尝试在不使用 jclouds 计算服务的情况下在节点上运行脚本。该代码使用 jclouds-chef 生成一条语句,但该语句假定由 jclouds 计算服务执行,该服务有自己的机制来呈现其执行的脚本。

为了获取完整的原始脚本并能够使用原始 SSH 连接直接执行它,必须手动完成一些操作。特别是,jclouds-chef 脚本假设定义了一些 bash 函数,而以这种方式呈现脚本时这些函数会丢失。

您应该按如下方式更改 rawString 字符串的创建:

StringBuilder rawScript = new StringBuilder();

Map<String, String> resolvedFunctions = ScriptBuilder.resolveFunctionDependenciesForStatements(
new HashMap<String, String>(), ImmutableSet.of(bootstrap), OsFamily.UNIX);

ScriptBuilder.writeFunctions(resolvedFunctions, OsFamily.UNIX, rawScript);
rawScript.append(bootstrap.render(OsFamily.UNIX));

ssh.put("/tmp/chef-bootstrap.sh", rawScript.toString());
ExecResponse result = ssh.exec("bash /tmp/chef-bootstrap.sh");

这样最终的脚本将具有所有依赖的函数。另请注意,我没有直接运行脚本,而是更改了代码以上传它,然后在本地运行该文件。这将帮助您排除脚本失败时发生的问题。

另请注意,该脚本将在每次运行时生成 /etc/chef 目录的内容,因此在再次运行之前,您可能需要删除该目录。

关于java - JClouds-Chef 未引导和配置虚拟机,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/24867971/

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