# 2. 实施步骤
# 步骤1：安装Ansible
# 步骤2：配置SSH免密登录
# 步骤3：创建清单文件
# 步骤4：创建Playbook文件
# 步骤5：执行Playbook
# 步骤6：验证配置
# 步骤7：测试与验证

# 3. 应用效果
# 实现了对Web服务器的自动化配置
# 提高了配置管理的效率
# 确保了配置的一致性

# 清单文件
cat > inventory.ini << 'EOF' [web] web1 ansible_host=192.168.1.100 ansible_user=root web2 ansible_host=192.168.1.101 ansible_user=root EOF # Playbook文件 cat > playbook.yml << 'EOF' --- - name: Configure web servers hosts: web tasks: - name: Install httpd package: name: httpd state: present - name: Start httpd service service: name: httpd state: started enabled: yes - name: Copy index.html copy: content: "

Hello from Ansible!

”
dest: /var/www/html/index.html

– name: Allow http through firewall
firewalld:
service: http
state: enabled
permanent: yes
immediate: yes
EOF

# 执行Playbook
ansible-playbook -i inventory.ini playbook.yml

# 验证配置
ansible web -i inventory.ini -m command -a “curl http://localhost”

# 2. 实施步骤
# 步骤1：创建角色目录结构
# 步骤2：创建角色任务文件
# 步骤3：创建角色模板文件
# 步骤4：创建角色变量文件
# 步骤5：创建环境配置文件
# 步骤6：创建使用角色的Playbook
# 步骤7：执行Playbook
# 步骤8：验证配置
# 步骤9：测试与验证

# 3. 应用效果
# 实现了对多环境服务器的自动化配置
# 提高了配置管理的效率
# 确保了配置的一致性

# 创建角色目录结构
mkdir -p roles/webserver/tasks
mkdir -p roles/webserver/templates
mkdir -p roles/webserver/vars
mkdir -p roles/dbserver/tasks
mkdir -p roles/dbserver/templates
mkdir -p roles/dbserver/vars

# Web服务器角色任务文件
cat > roles/webserver/tasks/main.yml << 'EOF' --- - name: Install httpd package: name: httpd state: present - name: Start httpd service service: name: httpd state: started enabled: yes - name: Copy index.html template template: src: index.html.j2 dest: /var/www/html/index.html - name: Allow http through firewall firewalld: service: http state: enabled permanent: yes immediate: yes EOF # Web服务器角色模板文件 cat > roles/webserver/templates/index.html.j2 << 'EOF'

Hello from {{ ansible_hostname }}!

Environment: {{ environment }}

IP address: {{ ansible_default_ipv4.address }}

EOF

# Web服务器角色变量文件
cat > roles/webserver/vars/main.yml << 'EOF' --- httpd_port: 80 EOF # 数据库服务器角色任务文件 cat > roles/dbserver/tasks/main.yml << 'EOF' --- - name: Install mariadb-server package: name: mariadb-server state: present - name: Start mariadb service service: name: mariadb state: started enabled: yes - name: Create database mysql_db: name: fgedudb state: present - name: Create database user mysql_user: name: fgedu password: password123 priv: 'fgedudb.*:ALL' host: '%' state: present - name: Allow mysql through firewall firewalld: service: mysql state: enabled permanent: yes immediate: yes EOF # 环境配置文件 cat > group_vars/dev.yml << 'EOF' --- environment: development EOF cat > group_vars/test.yml << 'EOF' --- environment: testing EOF cat > group_vars/prod.yml << 'EOF' --- environment: production EOF # 清单文件 cat > inventory.ini << 'EOF' [dev:children] dev_web dev_db [test:children] test_web test_db [prod:children] prod_web prod_db [dev_web] dev-web1 ansible_host=192.168.1.100 ansible_user=root [dev_db] dev-db1 ansible_host=192.168.1.200 ansible_user=root [test_web] test-web1 ansible_host=192.168.1.101 ansible_user=root [test_db] test-db1 ansible_host=192.168.1.201 ansible_user=root [prod_web] prod-web1 ansible_host=192.168.1.102 ansible_user=root prod-web2 ansible_host=192.168.1.103 ansible_user=root [prod_db] prod-db1 ansible_host=192.168.1.202 ansible_user=root prod-db2 ansible_host=192.168.1.203 ansible_user=root EOF # 主Playbook文件 cat > site.yml << 'EOF' --- - name: Configure web servers hosts: *web roles: - webserver - name: Configure database servers hosts: *db roles: - dbserver EOF # 执行Playbook ansible-playbook -i inventory.ini site.yml # 验证配置 ansible dev_web -i inventory.ini -m command -a "curl http://localhost" ansible dev_db -i inventory.ini -m command -a "mysql -u fgedu -ppassword123 -e 'SHOW DATABASES;'"

# 2. 实施步骤
# 步骤1：安装AWS SDK
# 步骤2：配置AWS凭证
# 步骤3：创建Playbook文件
# 步骤4：执行Playbook
# 步骤5：验证配置
# 步骤6：测试与验证

# 3. 应用效果
# 实现了对云资源的自动化管理
# 提高了云资源管理的效率
# 确保了云资源配置的一致性

# 安装AWS SDK
pip3 install boto3 botocore

# 配置AWS凭证
cat > ~/.aws/credentials << 'EOF' [default] aws_access_key_id = YOUR_ACCESS_KEY aws_secret_access_key = YOUR_SECRET_KEY EOF cat > ~/.aws/config << 'EOF' [default] region = us-east-1 EOF # Playbook文件 cat > aws.yml << 'EOF' --- - name: Provision AWS resources hosts: localhost gather_facts: no tasks: - name: Create security group amazon.aws.ec2_security_group: name: fgedu-sg description: Allow SSH and HTTP region: us-east-1 rules: - proto: tcp ports: - 22 cidr_ip: 0.0.0.0/0 - proto: tcp ports: - 80 cidr_ip: 0.0.0.0/0 register: sg - name: Create EC2 instance amazon.aws.ec2_instance: name: fgedu-instance instance_type: t2.micro image_id: ami-0c55b159cbfafe1f0 region: us-east-1 security_group: fgedu-sg tags: Name: fgedu-instance register: ec2 - name: Create S3 bucket amazon.aws.s3_bucket: name: fgedu-bucket-{{ 99999999 | random }} region: us-east-1 state: present register: s3 - name: Print resources debug: msg: - "Security Group: {{ sg.group_id }}" - "EC2 Instance: {{ ec2.instances[0].instance_id }}" - "Public IP: {{ ec2.instances[0].public_ip_address }}" - "S3 Bucket: {{ s3.bucket.name }}" EOF # 执行Playbook ansible-playbook aws.yml # 验证配置 # 登录AWS控制台查看创建的资源