定义playbook的主机组 说明： 1、playbook的主机组和ansible的主机组不一样， 2、playbook的主机组文件必须要和playbook文件在同一个目录下否则会报如下错误： [root@test1 profile]# ansible-playbook -i hosts deploy_flanneld.yaml --list-hosts [WARNING]: Unable to parse /k8s/profile/hosts as an inventory source 3、执行playbook必须要在plyaybook文件所在目录下执行，否则报错；跟带不带绝对路径没有关系，必须保证在同一个目录 4、执行playbook的任何相关操作都要在plyaybook文件所在目录下执行，否则报错；跟带不带绝对路径没有关系，必须保证在同一个目录 cat >/k8s/profile/hosts <<EOF [webservers] 192.168.0.91 192.168.0.92 EOF playbook文件 cat > /k8s/profile/deploy_nginx.yaml <<EOF --- - hosts: webservers become: yes become_method: sudo vars: worker_processes: 4 worker_connections: 768 max_open_files: 65506 tasks: - name: install nginx command: yum install nginx -y - name: copy nginx config file template: src=/home/lmx/test_ansible/nginx.conf.j2 dest=/etc/nginx/nginx.conf notify: restart nginx - name: copy index.html template: src: /home/lmx/test_ansible/index.html.j2 dest: /usr/share/nginx/www/index.html mode: 0644 notify: restart nginx - name: see file command: ls /root notify: restart nginx handlers: - name: restart nginx service: name=nginx state=restarted EOF 模板文件 mkdir -p /home/lmx/test_ansible/ cat > /home/lmx/test_ansible/nginx.conf.j2 << EOF worker_processes {{ worker_processes }}; worker_rlimit_nofile {{ max_open_files }}; events { worker_connections {{ worker_connections }}; } http { server { listen 80; root /usr/share/nginx/www; index index.html index.htm default.html index.php; server_name loclhost; location / { try_files $uri $uri/ =404; } } } EOF cat > /home/lmx/test_ansible/index.html.j2 <<EOF <html> <head> <title>welcome to american</title> </head> <body> <h1>nginx, confitured by ansible</h1> <p>if you can see this, ansible successfully installed nginx.</p> <p>{{ ansible_hostname }}</p> </body> </html> EOF 开始部署: 说明：必须切换到playbook所在文件目录下执行，否则报错 [root@test1 ~]# cd /k8s/profile/ [root@test1 profile]# ansible-playbook deploy_flanneld.yaml