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java實(shí)現(xiàn)Linux(centos) 中docker容器下命令交互的代碼（配置向?qū)В?/h1>
 更新時(shí)間：2021年05月13日 15:14:57   作者：見(jiàn)賢思齊IT  
小編在開(kāi)發(fā)項(xiàng)目時(shí)遇到個(gè)需求，因?yàn)橄到y(tǒng)部署每次都要多臺(tái)機(jī)器拆分部署，很麻煩，怎么配置比較方便呢，今天小編給大家介紹java實(shí)現(xiàn)Linux(centos) 中docker容器下命令交互的代碼（配置向?qū)В?，感興趣的朋友一起看看吧

開(kāi)發(fā)需求: 因系統(tǒng)程序部署時(shí),經(jīng)常是拆分部署(多臺(tái)機(jī)器) ,手工部署費(fèi)時(shí)費(fèi)力,且每次都要手工配置系統(tǒng)參數(shù)(系統(tǒng)提供配置向?qū)?。

如下圖所示:

1)進(jìn)行main容器 -> 2)執(zhí)行系統(tǒng)配置向?qū)?-> 3)選擇服務(wù)器模式 -> 4) 選擇web控制臺(tái)....然后進(jìn)行具體的服務(wù)器IP設(shè)置。

為了解放雙手，用java實(shí)現(xiàn)了Linux(centos) 下docker 應(yīng)用程序的命令交互。

具體代碼如下:

import java.io.*;
 
/**
 * @author by dujiajun
 * @date 2021/4/29.
 */
public class TestMain extends Thread{
 
    //進(jìn)入docker main
    private static String [] cmds = {"docker","exec","-i","main","bash"};
    private Process pro;
 
    //初始化各機(jī)器IP信息
    private String role = "";
    private String webIp = "";
    private String redisIp = "";
    private String beanstalkdIp = "";
    private String pgIp = "";
 
 
    //main應(yīng)用重啟
    public static String [] cmdRestart = {"/bin/sh","-c","docker restart main"};
 
    public void cmdRun(String[] machines) throws Exception {
        //執(zhí)行xx系統(tǒng)配置向?qū)畈⑸蛇M(jìn)程
        //pro = Runtime.getRuntime().exec(cmds);
        ProcessBuilder pb = new ProcessBuilder(cmds);
       /* pb.inheritIO();
        pb.redirectErrorStream(true);*/
        pro = pb.start();
        System.out.println("執(zhí)行前pro1:" + pro.isAlive());
 
        //解析machines信息
        if (machines.length > 0) {
            for (int i = 0; i < machines.length; i++) {
                int strEndIndex = machines[i].indexOf(":");
                String str = machines[i].substring(0, strEndIndex);
                String content = machines[i].substring(strEndIndex + 1);
                switch (str.trim()) {
                    case "role":
                        role = content;
                        break; //web服務(wù)器IP
                    case "webIp":
                        webIp = content;
                        break;  //redis服務(wù)器IP
                    case "redisIp":
                        redisIp = content;
                        break;  //redis服務(wù)器IP
                    case "beanstalkdIp":
                        beanstalkdIp = content;
                        break; //beanstalkd服務(wù)器IP
                    case "pgIp":
                        pgIp = content;
                        break; //beanstalkd服務(wù)器IP
                    default:
                        break;
                }
            }
        }
 
        new Thread() {
            public void run() {
                try (BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(pro.getOutputStream()))) {
                    if (role != null && role.equals("web-server")) {//系統(tǒng)web控制臺(tái)
                        System.out.println("*********進(jìn)入web控制臺(tái)配置向?qū)?********");
                        //系統(tǒng)配置向?qū)罴?web
                        String[] strCmdWeb = {
                                "python /opt/tools/skylar_cli/bin/skylar_cli.pyc",//系統(tǒng)配置向?qū)?
                                "server-type", //服務(wù)器模式
                                "web-server", //管理服務(wù)器:提供管理功能及應(yīng)用功能
                                "allow-deploy-api-server 0", //設(shè)置是否允許部署應(yīng)用服務(wù)器 1允許 0不允許
                                "cache-info " + redisIp + ":6379", //緩存服務(wù)器
                                "db-info " + pgIp + ":5432", //設(shè)置數(shù)據(jù)庫(kù)信息
                                "queue-info " + beanstalkdIp + ":11300", //設(shè)置隊(duì)列信息
                                "report-server-db-info " + pgIp + ":5432", //設(shè)置報(bào)表數(shù)據(jù)庫(kù)
                                "sfmg-db-info " + pgIp + ":5432", //設(shè)置軟件管家數(shù)據(jù)庫(kù)
                                "web-server-port " + webIp + ":8080",//設(shè)置管理服務(wù)器端口
                                "commit",//提交
                                "exit"
                        };
 
                        //查看進(jìn)程是否還存活
                        System.out.println("執(zhí)行前pro2:" + pro.isAlive());
                        for (String strWeb : strCmdWeb) {
                            synchronized (bw) {
                                bw.write(strWeb.trim());
                                bw.newLine();
                                System.out.println("step: " + strWeb);
                                bw.wait(1000);
                            }
                        }
 
                        //查看進(jìn)程是否還存活
                        System.out.println("pro3:" + pro.isAlive());
                        bw.flush();//緩存提交
                        System.out.println("緩存提交!");
                        bw.close();
                        System.out.println(" bw.close();");
                        System.out.println("web配置向?qū)гO(shè)置成功!");
 
                    } else if (role != null && role.equals("api-server")) {//系統(tǒng)app應(yīng)用
                        //系統(tǒng)配置向?qū)罴?APP
                        System.out.println("*********進(jìn)入APP服務(wù)器控制臺(tái)配置向?qū)?********");
                        String[] strCmdApp = {
                                "python /opt/tools/skylar_cli/bin/skylar_cli.pyc",//系統(tǒng)配置向?qū)?
                                "server-type", //服務(wù)器模式
                                "api-server", //APP服務(wù)器
                                "cache-info " + redisIp + ":6379", //緩存服務(wù)器
                                "db-info " + pgIp + ":5432", //設(shè)置數(shù)據(jù)庫(kù)信息
                                "queue-info " + beanstalkdIp + ":11300", //設(shè)置隊(duì)列信息
                                "web-server-info " + webIp + ":8080", //設(shè)置管理服務(wù)器端口
                                "commit",//提交配置
                                "exit"
                        };
 
                        for (String str : strCmdApp) {
                            synchronized (bw) {
                                bw.write(str.trim());
                                bw.newLine();
                                System.out.println("step: " + str);
                                bw.wait(1000);
                            }
                        }
                        //查看進(jìn)程是否還存活
                        System.out.println("pro3:" + pro.isAlive());
                        bw.flush();//緩存提交
                        System.out.println("緩存提交!");
                        System.out.println("app配置向?qū)гO(shè)置成功!");
                        bw.close();
 
                    } else if (role != null && role.equals("log-analyze-server")) {//系統(tǒng)日志分析服務(wù)器
                        //系統(tǒng)配置向?qū)罴?log-analyze-server
                        System.out.println("*********進(jìn)入日志分析服務(wù)器控制臺(tái)配置向?qū)?********");
                        String[] strCmdLog = {
                                "python /opt/tools/skylar_cli/bin/skylar_cli.pyc",//天擎配置向?qū)?
                                "server-type", //服務(wù)器模式
                                "log-analyze-server", //管理服務(wù)器:提供管理功能及應(yīng)用功能
                                "cache-info " + redisIp + ":6379", //緩存服務(wù)器
                                "db-info " + pgIp + ":5432", //設(shè)置數(shù)據(jù)庫(kù)信息
                                "queue-info " + beanstalkdIp + ":11300", //設(shè)置隊(duì)列信息
                                "web-server-info " + webIp + ":8080", //設(shè)置管理服務(wù)器端口
                                "sfmg-db-info " + pgIp + ":5432", //設(shè)置軟件管家數(shù)據(jù)庫(kù)
                                "commit",//提交配置
                                "exit"
 
                        };
 
                        //順序執(zhí)行配置向?qū)?
                        for (String str : strCmdLog) {
                            synchronized (bw) {
                                bw.write(str.trim());
                                bw.newLine();
                                System.out.println("step: " + str);
                                bw.wait(1000);
                            }
                        }
                        //測(cè)試進(jìn)程是否還存活
                        System.out.println("pro3:" + pro.isAlive());
                        bw.flush();//緩存提交
                        System.out.println("緩存提交!");
                        System.out.println("日志分析服務(wù)器配置向?qū)гO(shè)置成功!");
                        bw.close();
                    }
 
                } catch (IOException | InterruptedException e) {
                    //pro.destroyForcibly();
                    e.printStackTrace();
                    //pro.destroy();
                    System.out.println("e.getMessage(): " + e.getMessage());
                } finally {
                    try {
                        Process process = Runtime.getRuntime().exec(cmdRestart);//重啟main
                        System.out.println("process.isAlive:" + process.isAlive());
                        System.out.println("重啟main成功!");
                    } catch (IOException e) {
                        e.printStackTrace();
                    }
                }
            }
        }.start();
 
 
        new Thread(){
            public void run(){
                BufferedReader br = new BufferedReader(new InputStreamReader(pro.getErrorStream()));
                String cmdout = "";
                try {
                    cmdout = br.readLine();
                    while(cmdout!= null&&(!cmdout.equals("exit"))){
                        System.out.println(cmdout);
                    }
                } catch (IOException e) {
                    //System.out.println("br:pro.destroy();");
                    //pro.destroy();
                    e.printStackTrace();
                    System.out.println("e.printStackTrace();");
                }
                try {
                    System.out.println(" br.close();");
                    br.close();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }.start();
        pro.waitFor();//進(jìn)程等待
    }
 
    public static void main(String[] args) throws Exception {
 
        TestMain testMain = new TestMain();
 
        /*
        //測(cè)試用
        String[] machines ={
                "role:web-server",
                "webIp:xx.xx.xx.110",
                "redisIp:xx.xx.xx.211",
                "beanstalkdIp:xx.xx.xx.211",
                "pgIp:xx.xx.xx.212"
        };*/
 
        testMain.cmdRun(args);
       /* System.exit(0);
        System.out.println("System.exit(0);");*/
    }
}

特別注意:

 private static String [] cmds = {"docker","exec","-i","main","bash"};

一定要使用 docker exec -i main bash ，不要使用 -it ，否則會(huì)報(bào)錯(cuò) cannot enable tty mode on non tty input。

Usage: docker exec [OPTIONS] CONTAINER COMMAND [ARG...]
 
Run a command in a running container
 
  -i, --interactive=false    Keep STDIN open even if not attached  
  -t, --tty=false            Allocate a pseudo-TTY

打成jar包，執(zhí)行jar包：

終于看到久違的部署成功界面~

到此這篇關(guān)于java實(shí)現(xiàn)Linux(centos) 中docker容器下命令交互（配置向?qū)В┑奈恼戮徒榻B到這了,更多相關(guān)docker容器命令交互內(nèi)容請(qǐng)搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家！

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