金鱼哥RHCA回忆录：DO447管理清单--章节实验

个人简介：大家好，我是 金鱼哥，CSDN运维领域新星创作者，华为云·云享专家，阿里云社区·专家博主
个人资质：CCNA、HCNP、CSNA（网络分析师），软考初级、中级网络工程师、RHCSA、RHCE、RHCA、RHCI、ITIL
格言：努力不一定成功，但要想成功就必须努力

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[[email protected] ~]$ lab inventory-review start

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拉取实验代码

[[email protected] ~]$ cd git-repos/[[email protected] git-repos]$ git clone http://git.lab.example.com:8081/git/inventory-review.gitCloning into 'inventory-review'...remote: Enumerating objects: 56, done.remote: Counting objects: 100% (56/56), done.remote: Compressing objects: 100% (42/42), done.remote: Total 56 (delta 5), reused 0 (delta 0)Unpacking objects: 100% (56/56), done.[[email protected] git-repos]$ cd inventory-review

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运行剧本并验证

[[email protected] inventory-review]$ cat inventory [lb_servers]servera.lab.example.com[web_servers][web_servers:children]a_web_serversb_web_servers# Group "A" of Web Servers[a_web_servers]serverb.lab.example.com# Group "B" of Web Servers[b_web_servers]serverc.lab.example.com[[email protected] inventory-review]$ ansible-playbook site.yml[[email protected] inventory-review]$ curl http://serveraHello from serverb.lab.example.com. (version v1.1)[[email protected] inventory-review]$ curl http://serveraHello from serverc.lab.example.com. (version v1.1)

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按要求创建主机组变量

[[email protected] inventory-review]$ mkdir -pv group_vars/{a,b}_web_serversmkdir: created directory 'group_vars/a_web_servers'mkdir: created directory 'group_vars/b_web_servers'[[email protected] inventory-review]$ echo "webapp_version: v1.1a" > group_vars/a_web_servers/webapp.yml[[email protected] inventory-review]$ echo "webapp_version: v1.1b" > group_vars/b_web_servers/webapp.yml

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运行剧本并验证

[[email protected] inventory-review]$ ansible-playbook deploy_webapp.yml[[email protected] inventory-review]$ curl http://serveraHello from serverb.lab.example.com. (version v1.1a)[[email protected] inventory-review]$ curl http://serveraHello from serverc.lab.example.com. (version v1.1b)

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提交修改到工作区

[[email protected] inventory-review]$ git statusOn branch masterYour branch is up to date with 'origin/master'.Untracked files:  (use "git add <file>..." to include in what will be committed)	group_vars/a_web_servers/	group_vars/b_web_servers/nothing added to commit but untracked files present (use "git add" to track)[[email protected] inventory-review]$ git add group_vars/{a,b}_web_servers[[email protected] inventory-review]$ git statusOn branch masterYour branch is up to date with 'origin/master'.Changes to be committed:  (use "git reset HEAD <file>..." to unstage)	new file:   group_vars/a_web_servers/webapp.yml	new file:   group_vars/b_web_servers/webapp.yml[[email protected] inventory-review]$ git commit -m "Created variable files for the A and B groups."[master 05c2080] Created variable files for the A and B groups. 2 files changed, 2 insertions(+) create mode 100644 group_vars/a_web_servers/webapp.yml create mode 100644 group_vars/b_web_servers/webapp.yml

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编写yaml清单文件并测试执行

[[email protected] inventory-review]$ cat inventory.yml lb_servers:  hosts:    servera.lab.example.com:web_servers:  children:    a_web_servers:      hosts:        serverb.lab.example.com:    b_web_servers:      hosts:        serverc.lab.example.com:[[email protected] inventory-review]$ ansible-playbook site.yml -i inventory.yml

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改写为变量识别主机并测试运行

[[email protected] inventory-review]$ cat inventory.yml lb_servers:  hosts:    loadbalancer_1:      ansible_host: servera.lab.example.comweb_servers:  children:    a_web_servers:      hosts:        backend_a1:          ansible_host: serverb.lab.example.com    b_web_servers:      hosts:        backend_b1:          ansible_host: serverc.lab.example.com[[email protected] inventory-review]$ ansible-playbook site.yml -i inventory.yml

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提交修改后的代码项目

[[email protected] inventory-review]$ git add inventory.yml[[email protected] inventory-review]$ git commit -m "Added YAML inventory"[master 3fc697d] Added YAML inventory 1 file changed, 15 insertions(+) create mode 100644 inventory.yml[[email protected] inventory-review]$ git statusOn branch masterYour branch is ahead of 'origin/master' by 2 commits.  (use "git push" to publish your local commits)nothing to commit, working tree clean[[email protected] inventory-review]$ git pushEnumerating objects: 12, done.Counting objects: 100% (12/12), done.Delta compression using up to 4 threads.Compressing objects: 100% (6/6), done.Writing objects: 100% (10/10), 920 bytes | 920.00 KiB/s, done.Total 10 (delta 2), reused 0 (delta 0)To http://git.lab.example.com:8081/git/inventory-review.git   e1de24a..3fc697d  master -> master

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评测与清除实验

[[email protected] inventory-review]$ lab inventory-review grade[[email protected] inventory-review]$ lab inventory-review finish

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总结

RHCA认证需要经历5门的学习与考试，还是需要花不少时间去学习与备考的，好好加油，可以噶🤪。

以上就是【金鱼哥】对 第二章 管理清单–章节实验 的简述和讲解。希望能对看到此文章的小伙伴有所帮助。

红帽认证专栏系列：
RHCSA专栏：戏说 RHCSA 认证
RHCE专栏：戏说 RHCE 认证
此文章收录在RHCA专栏：RHCA 回忆录

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