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Ansible Automation

⬢ 層級 2技術
高
薪資影響
5 個月
學習時長
中等
難度
2
職業
一覽

Ansible is the leading open-source configuration management and orchestration platform: define infrastructure as code via YAML playbooks, execute across thousands of servers without agent installation, and manage full application deployments idempotently. Career path: Practitioner (basic playbooks, $95-125k) → Engineer (roles, Vault, Galaxy, $125-160k) → Architect (Tower/AWX, multi-cloud, $160-210k). Core concepts: playbooks, inventory, roles, handlers. Compare to Terraform (IaC), Chef/Puppet (agent-based), Kubernetes (orchestration).

什麼是 Ansible Automation

Agentless IT automation: configuration management, application deployment, orchestration. Simple YAML-based automation for servers, networks, cloud. Red Hat (IBM) product. Learning Curve: Medium (YAML + systems knowledge)

🔧 工具與生態
Ansible CoreAnsible TowerAnsible AWXAnsible Content Collectionsansible-lintMoleculeAnsible GalaxyVagrantHashiCorp VaultJenkins

💰 各地區薪資

地區初級中級高級
USA$100,000$140,000$190,000
UK£55,000£80,000£115,000
EU€60,000€85,000€125,000
CANADACA$105,000CA$145,000CA$200,000

🎯 使用 Ansible Automation 的職業

Database Administrator
Network Engineer

❓ 常見問題

Ansible vs Terraform, when do I use each?
Ansible: configuration management, application deployment, orchestration. Iterative, mutable infrastructure. Terraform: infrastructure provisioning, immutable desired state, AWS/Azure/GCP resource management. Modern DevOps uses both: Terraform provisions instances, Ansible configures them. They complement, not compete.
How is Ansible agentless different?
Ansible connects via SSH (Linux) or WinRM (Windows), no agent to install, no background service running. Competitors (Puppet, Chef) install agents that phone home. Agentless = less operational overhead, easier onboarding, better security (no persistent agent). Trade-off: slightly slower for massive-scale ops (100k+ nodes).
What's idempotency and why does it matter?
Running a playbook twice = same result as running it once. If a package is installed, re-running doesn't reinstall. If a config file is correct, no change. Idempotency = safe automation; ops can re-run playbooks without breaking production. Ansible modules are idempotent by design.
Ansible Tower vs AWX vs Ansible Automation Platform, what's the difference?
AWX (open-source, free, community-supported): UI, RBAC, scheduling, webhooks. Tower (legacy, deprecated): commercial, replaced by AAP. Ansible Automation Platform (AAP, modern): Red Hat's commercial offering with support, advanced analytics, hub integration. For enterprises: AAP. For labs/small orgs: AWX. AWX is fine for most use cases.
How do I manage secrets in Ansible?
Ansible Vault encrypts sensitive data (passwords, API keys) in playbooks. Store vault password in `.vault_password` file or pass via `--vault-password-file`. For teams: use HashiCorp Vault integration. Never commit secrets to Git; use CI/CD to inject at runtime.
What's the difference between plays, tasks, handlers, and roles?
Play: collection of tasks targeting a host group. Task: single action (install package, restart service). Handler: task triggered by notify (only runs if something changed). Role: reusable, organized bundle of tasks, handlers, templates, variables. Roles = best practice for scaling.
Can Ansible manage cloud infrastructure like AWS?
Yes, via modules: aws_ec2, rds, s3, etc. Ansible provisioning < Terraform (Terraform is cloud-native). Use Ansible for post-deployment config, app setup. Use Terraform for resource provisioning. Together: Terraform spins up, Ansible configures.

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