configuration-management-sysadmin
Configuration management, Infrastructure as Code, and automation with Ansible, Puppet, Chef
ソース情報
- リポジトリ
- NeuralBlitz/Mito
- ソースの最終更新活動
- 2026年3月22日 13:29
- 検出された SKILL.md の言語
- 英語
- スター
- 0
- フォーク
- 0
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SKILL.md
ソースの指示 · 読み取り専用プレビュー- name
- configuration-management-sysadmin
- description
- Configuration management, Infrastructure as Code, and automation with Ansible, Puppet, Chef
- license
- MIT
- compatibility
- opencode
- metadata
- {"audience":"devops","category":"systems-administration"}
## What I do
- Manage server configurations at scale
- Automate infrastructure setup
- Use configuration management tools
- Implement idempotent manifests
- Define desired state
- Ensure configuration compliance
## When to use me
When managing infrastructure at scale, automating deployments, or ensuring consistent configurations.
## Tools Overview
### Ansible
- Agentless
- YAML playbooks
- SSH-based
- Declarative
- Best for: Ad-hoc automation, configuration
```yaml
- name: Install nginx
hosts: webservers
become: yes
tasks:
- name: Install nginx
apt:
name: nginx
state: present
```
### Puppet
- Agent-based (master/agent)
- Declarative DSL
- Resource types
- Report drift
- Best for: Long-running infrastructure
```puppet
package { 'nginx':
ensure => installed,
}
service { 'nginx':
ensure => running,
require => Package['nginx'],
}
```
### Chef
- Agent-based
- Ruby DSL
- Cookbooks and recipes
- Chef Infra, Chef Inspec
- Best for: Complex configurations
```ruby
package 'nginx' do
action :install
end
service 'nginx' do
action [:start, :enable]
end
```
### Terraform
- Infrastructure provisioning
- HCL language
- Plan and apply
- State management
- Best for: Cloud resources
```hcl
resource "aws_instance" "web" {
ami = "ami-12345678"
instance_type = "t2.micro"
tags = {
Name = "WebServer"
}
}
```
## Key Concepts
### Idempotency
- Same result regardless of runs
- Check current state first
- Make minimal changes
### Desired State
- Define what, not how
- System reconciles to desired
- Drift detection
### Modules/Recipes/Cookbooks
- Reusable components
- Dependency management
- Version control
### Testing
- Testinfra
- Serverspec
- Kitchen/CI integration
## Best Practices
- Use version control
- Peer review changes
- Test in staging first
- Use secrets management
- Modularize configurations
- Document modules
- Monitor drift
- Backup state files
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