标签：disable could not home 自启动 ansbile http 操作 director 引用
转自： https://blog.csdn.net/chengyuqiang/article/details/78529454 [root@kube-node3 ~]# cat /etc/ansible/hosts [testhosts] 127.0.0.1 192.168.0.73 [root@kube-node3 ~]# vi hello.yml --- - hosts: testhosts tasks: - name: "helloworld" shell: echo "Hello World" `date` by `hostname` > /tmp/hello.log [root@kube-node3 ~]# ansible-playbook hello.yml PLAY [testhosts] ************************************************************** GATHERING FACTS *************************************************************** ok: [127.0.0.1] ok: [192.168.0.73] TASK: [helloworld] ************************************************************ changed: [127.0.0.1] changed: [192.168.0.73] PLAY RECAP ******************************************************************** 127.0.0.1 : ok=2 changed=1 unreachable=0 failed=0 192.168.0.73 : ok=2 changed=1 unreachable=0 failed=0 playbook的说明: hosts: 是主机组，用于指定操作对象节点,多个节点用逗号分隔 tasks: 用于指定要处理的内容 name:task的名称，ansible可以把很多task使用playbook编排起来，通过名称，实际执行的时候可以清楚地看到执行情况 shell: ansible的shell模块，在前面的实例中我们已经知道command/shell/raw等的区别，所以可以知道这个简单的例子中使用哪个模块都能实现这个>简单的功能 对照执行的结果，基本上已经无需说明。 changed有2个，unreachable和失败的都没有。 怎么会有setup这个task呢，那是因为default的情况下，facts是会被收集的的，我们可以通过设定参数gather_facts让其不被收集。 [root@node1 ~]# cat hello.yml --- - hosts: testhosts gather_facts: false tasks: - name: "helloworld" shell: echo "Hello World" `date` by `hostname` > /tmp/hello.log [root@kube-node3 ~]# ansible-playbook hello.yml PLAY [testhosts] ************************************************************** TASK: [helloworld] ************************************************************ changed: [127.0.0.1] changed: [192.168.0.73] PLAY RECAP ******************************************************************** 127.0.0.1 : ok=1 changed=1 unreachable=0 failed=0 192.168.0.73 : ok=1 changed=1 unreachable=0 failed=0 3、playbook变量使用 Ansbile还内嵌了七个很有用的变量，使用得当也会带来很大的便利。 ansible的playbook中的变量引用使用{{ }}。 hostvars变量 groups变量 group_names变量 inventory_hostname变量 inventory_hostname_short inventory_dir inventory_file 在vars后设定变量message，并将此message内容输出到log中 gather_facts参数指定了在以下任务部分执行前，是否先执行setup模块获取主机相关信息，这在后面的task会使用到setup获取的信息时用到； [root@kube-node3 ~]# cat hello.yml --- - hosts: testhosts vars: - message: "hello,world" gather_facts: false tasks: - name: "helloworld" shell: echo {{message}} `date` by `hostname` > /tmp/hello.log [root@kube-node3 ~]# ansible-playbook hello.yml PLAY [testhosts] ************************************************************** TASK: [helloworld] ************************************************************ changed: [127.0.0.1] changed: [192.168.0.73] PLAY RECAP ******************************************************************** 127.0.0.1 : ok=1 changed=1 unreachable=0 failed=0 192.168.0.73 : ok=1 changed=1 unreachable=0 failed=0 4、Ansible中使用环境变量, 下面是直接摘抄的，我的centos上没有java，没法做 [root@node1 ~]# vi java.yml [root@node1 ~]# cat java.yml --- - hosts: node2,node3 gather_facts: false tasks: - name: "java-test" shell: echo ${JAVA_HOME} >/tmp/hello.log [root@node1 ~]# ansible-playbook java.yml PLAY [node2,node3] ************************************************************************************************************************************************************************** TASK [java-test] **************************************************************************************************************************************************************************** changed: [node3] changed: [node2] PLAY RECAP ********************************************************************************************************************************************************************************** node2 : ok=1 changed=1 unreachable=0 failed=0 node3 : ok=1 changed=1 unreachable=0 failed=0 [root@node2 ~]# cat /tmp/hello.log /opt/jdk1.8.0_112 [root@node2 ~]# [root@node3 ~]# cat /tmp/hello.log /opt/jdk1.8.0_112 [root@node3 ~]# 5、playbook的条件和循环 Ansible中有众多的模块，可以写playbook，同时里面也可以写条件判断和循环，这样基本上脚本能做的事情ansible大体都可以作了。条件判断使用when，循环使用with_items，接下来看一下如何使用的简单实例。 [root@node1 ~]# vi when.yml [root@node1 ~]# cat when.yml --- - hosts: testhosts gather_facts: true tasks: - name: "redhat-test" shell: echo "RedHat" `date` by `hostname` >> /tmp/hello.log when: ansible_os_family == "RedHat" - name: "other linux" shell: echo "Not RedHat" `date` by `hostname` >> /tmp/hello.log when: ansible_os_family != "RedHat" [root@kube-node3 ~]# ansible-playbook when.yml PLAY [testhosts] ************************************************************** GATHERING FACTS *************************************************************** ok: [127.0.0.1] ok: [192.168.0.73] TASK: [redhat-test] *********************************************************** changed: [127.0.0.1] changed: [192.168.0.73] TASK: [other linux] *********************************************************** skipping: [127.0.0.1] skipping: [192.168.0.73] PLAY RECAP ******************************************************************** 127.0.0.1 : ok=2 changed=1 unreachable=0 failed=0 192.168.0.73 : ok=2 changed=1 unreachable=0 failed=0 [root@kube-node2 ~]# cat /tmp/hello.log hello,world Tue Oct 2 14:03:39 CST 2018 by kube-node2 RedHat Tue Oct 2 14:10:43 CST 2018 by kube-node2 [root@kube-node3 ~]# cat /tmp/hello.log hello,world Tue Oct 2 14:03:39 CST 2018 by kube-node3 RedHat Tue Oct 2 14:10:43 CST 2018 by kube-node3 5.2循环 [root@node1 ~]# vi with_items.yml [root@kube-node3 ~]# cat with_items.yml - hosts: testhosts gather_facts: true tasks: - name: "循环测试" shell: echo {{item}} `date` by `hostname` >> /tmp/hello.log with_items: - message item1 - message item2 - message item3 - message item4 - message item5 [root@kube-node3 ~]# ansible-playbook with_items.yml PLAY [testhosts] ************************************************************** GATHERING FACTS *************************************************************** ok: [127.0.0.1] ok: [192.168.0.73] TASK: [循环测试] ****************************************************************** changed: [127.0.0.1] => (item=message item1) changed: [192.168.0.73] => (item=message item1) changed: [127.0.0.1] => (item=message item2) changed: [192.168.0.73] => (item=message item2) changed: [127.0.0.1] => (item=message item3) changed: [192.168.0.73] => (item=message item3) changed: [127.0.0.1] => (item=message item4) changed: [192.168.0.73] => (item=message item4) changed: [127.0.0.1] => (item=message item5) changed: [192.168.0.73] => (item=message item5) PLAY RECAP ******************************************************************** 127.0.0.1 : ok=2 changed=1 unreachable=0 failed=0 192.168.0.73 : ok=2 changed=1 unreachable=0 failed=0 [root@kube-node2 ~]# cat /tmp/hello.log hello,world Tue Oct 2 14:03:39 CST 2018 by kube-node2 RedHat Tue Oct 2 14:10:43 CST 2018 by kube-node2 RedHat Tue Oct 2 14:14:35 CST 2018 by kube-node2 message item1 Tue Oct 2 14:15:38 CST 2018 by kube-node2 message item2 Tue Oct 2 14:15:39 CST 2018 by kube-node2 message item3 Tue Oct 2 14:15:39 CST 2018 by kube-node2 message item4 Tue Oct 2 14:15:39 CST 2018 by kube-node2 message item5 Tue Oct 2 14:15:40 CST 2018 by kube-node2 [root@kube-node3 ~]# cat /tmp/hello.log hello,world Tue Oct 2 14:03:39 CST 2018 by kube-node3 RedHat Tue Oct 2 14:10:43 CST 2018 by kube-node3 RedHat Tue Oct 2 14:14:35 CST 2018 by kube-node3 message item1 Tue Oct 2 14:15:38 CST 2018 by kube-node3 message item2 Tue Oct 2 14:15:39 CST 2018 by kube-node3 message item3 Tue Oct 2 14:15:39 CST 2018 by kube-node3 message item4 Tue Oct 2 14:15:39 CST 2018 by kube-node3 message item5 Tue Oct 2 14:15:40 CST 2018 by kube-node3 6、通过Playbook安装apache yum模块： 目的：在指定节点上安装 apache 服务 命令：ansible all -m yum -a “state=present name=httpd” state=latest=>>安装最新版本 service模块： 目的：启动指定节点上的 httpd 服务，并让其开机自启动 命令：ansible 10.1.1.113 -m service -a ‘name=httpd state=restarted enabled=yes’ [root@node1 ~]# vi apache.yml [root@kube-node3 ~]# cat apache.yml --- - hosts: testhosts remote_user: root gather_facts: true tasks: - name: "install apache on CentOS" yum: name=httpd state=present when: ansible_os_family =="RedHat" - name: "install apache on Debian" yum: name=apache2 state=present when: ansible_os_family =="Debian" - name: "启动Apache，并设置开机启动" service: name=httpd state=started enabled=yes [root@kube-node3 ~]# ansible-playbook apache.yml PLAY [testhosts] ************************************************************** GATHERING FACTS *************************************************************** ok: [127.0.0.1] ok: [192.168.0.73] TASK: [install apache on CentOS] ********************************************** changed: [127.0.0.1] changed: [192.168.0.73] TASK: [install apache on Debian] ********************************************** skipping: [127.0.0.1] skipping: [192.168.0.73] TASK: [启动Apache，并设置开机启动] ****************************************************** changed: [127.0.0.1] changed: [192.168.0.73] PLAY RECAP ******************************************************************** 127.0.0.1 : ok=3 changed=2 unreachable=0 failed=0 192.168.0.73 : ok=3 changed=2 unreachable=0 failed=0 验证apache服务是否安装成功 [root@kube-node2 ~]# systemctl status httpd ● httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2018-10-02 14:24:11 CST; 1min 17s ago Docs: man:httpd(8) man:apachectl(8) Main PID: 67034 (httpd) Status: "Total requests: 0; Current requests/sec: 0; Current traffic: 0 B/sec" Tasks: 6 Memory: 2.9M CGroup: /system.slice/httpd.service ├─67034 /usr/sbin/httpd -DFOREGROUND ├─67035 /usr/sbin/httpd -DFOREGROUND ├─67036 /usr/sbin/httpd -DFOREGROUND ├─67037 /usr/sbin/httpd -DFOREGROUND ├─67038 /usr/sbin/httpd -DFOREGROUND └─67039 /usr/sbin/httpd -DFOREGROUND Oct 02 14:24:11 kube-node2 systemd[1]: Starting The Apache HTTP Server... Oct 02 14:24:11 kube-node2 httpd[67034]: AH00558: httpd: Could not reliably determine the server‘s fully qualified domain n...message Oct 02 14:24:11 kube-node2 systemd[1]: Started The Apache HTTP Server. Hint: Some lines were ellipsized, use -l to show in full. [root@kube-node3 ~]# systemctl status httpd ● httpd.service - The Apache HTTP Server Loaded: loaded (/usr/lib/systemd/system/httpd.service; enabled; vendor preset: disabled) Active: active (running) since Tue 2018-10-02 14:24:11 CST; 2min 1s ago Docs: man:httpd(8) man:apachectl(8) Main PID: 64251 (httpd) Status: "Total requests: 0; Current requests/sec: 0; Current traffic: 0 B/sec" Tasks: 6 Memory: 2.8M CGroup: /system.slice/httpd.service ├─64251 /usr/sbin/httpd -DFOREGROUND ├─64256 /usr/sbin/httpd -DFOREGROUND ├─64257 /usr/sbin/httpd -DFOREGROUND ├─64258 /usr/sbin/httpd -DFOREGROUND ├─64260 /usr/sbin/httpd -DFOREGROUND └─64261 /usr/sbin/httpd -DFOREGROUND Oct 02 14:24:11 kube-node3 systemd[1]: Starting The Apache HTTP Server... Oct 02 14:24:11 kube-node3 httpd[64251]: AH00558: httpd: Could not reliably determine the server‘s fully qualified domain n...message Oct 02 14:24:11 kube-node3 systemd[1]: Started The Apache HTTP Server. Hint: Some lines were ellipsized, use -l to show in full. 通过Playbook卸载apache [root@kube-node3 ~]# cat apache.yml --- - hosts: testhosts remote_user: root gather_facts: true tasks: - name: "remove apache on CentOS" yum: name=httpd state=removed when: ansible_os_family =="RedHat" - name: "install apache on Debian" yum: name=apache2 state=removed when: ansible_os_family =="Debian" - name: "卸载apache完毕" service: name=httpd state=stopped [root@kube-node3 ~]# ansible-playbook apache.yml PLAY [testhosts] ************************************************************** GATHERING FACTS *************************************************************** ok: [127.0.0.1] ok: [192.168.0.73] TASK: [remove apache on CentOS] *********************************************** changed: [127.0.0.1] changed: [192.168.0.73] TASK: [install apache on Debian] ********************************************** skipping: [127.0.0.1] skipping: [192.168.0.73] TASK: [卸载apache完毕] ************************************************************ failed: [127.0.0.1] => {"cmd": "None show None", "failed": true, "rc": 2} msg: [Errno 2] No such file or directory failed: [192.168.0.73] => {"cmd": "None show None", "failed": true, "rc": 2} msg: [Errno 2] No such file or directory FATAL: all hosts have already failed -- aborting PLAY RECAP ******************************************************************** to retry, use: --limit @/root/apache.retry 127.0.0.1 : ok=2 changed=1 unreachable=0 failed=1 192.168.0.73 : ok=2 changed=1 unreachable=0 验证： [root@kube-node2 ~]# systemctl status httpd Unit httpd.service could not be found. [root@kube-node3 ~]# systemctl status httpd Unit httpd.service could not be found.
标签：disable could not home 自启动 ansbile http 操作 director 引用
原文地址：https://www.cnblogs.com/effortsing/p/10012084.html
