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OPA Policy Engine

⬢ 層級 2技術
+$30–50k
薪資影響
2 個月
學習時長
困難
難度
3
職業
一覽

Open Policy Agent (OPA) is a policy engine that decouples policy from application code. Used in Kubernetes (admission control), CI/CD (compliance), and API gateways (authorization). Policies are written in Rego, a purpose-built language. Salary: mid 150-170k. Learn in 6-8 weeks. Complements Kubernetes, security, and DevOps.

什麼是 OPA Policy Engine

Open Policy Agent (OPA) is a general-purpose policy engine that decouples policy decisions from application logic. You write policies in Rego (a declarative query language), and OPA evaluates them against structured data (JSON). Common uses: Kubernetes admission control (allow/deny/mutate pod specs), CI/CD compliance (enforce standards), API gateway authorization (allow/deny API calls), and infrastructure-as-code policy (Terraform, Helm linting).

🔧 工具與生態
OPA CLIRego LanguageKubernetes Admission ControllerPolicy TestingREPL DebuggerREST APIConftest IntegrationBundles & Distribution

📋 開始之前

Devops Ci Cd

💰 各地區薪資

地區初級中級高級
USA$95,000$160,000$225,000
UK£58,000£102,000£160,000
EU€63,000€107,000€170,000
CANADACA$90,000CA$150,000CA$210,000

🎯 使用 OPA Policy Engine 的職業

Backend Developer
Machine Learning Engineer
Qa Test Engineer

❓ 常見問題

Why not use Kubernetes RBAC?
RBAC is simpler but less flexible; OPA can express arbitrary policies (resource quotas, label requirements, security contexts).
What's Rego?
Rego is a policy language designed for OPA; it's like SQL for policies. Queries are declarative and composable.
Can OPA prevent pod deployments?
Yes, via Kubernetes admission webhooks; OPA can block or mutate (alter) pod specs before they're created.
Is OPA only for Kubernetes?
No, OPA works with any JSON input, APIs, infrastructure code, CI/CD pipelines, API gateways.
What's the learning curve?
High: Rego is unlike common languages. Expect 4–6 weeks to write non-trivial policies.

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