kelseyhightower/confd

Health v2 · maintenance only

Adoption not part of the score

8428 stars · 1391 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

confd is a lightweight Go CLI tool that keeps local application configuration files up to date by rendering templates with data from backends like etcd, consul, vault, redis, dynamodb, zookeeper, AWS SSM, or environment variables. It can also reload applications so they pick up configuration changes automatically.

Use cases

• keep nginx config in sync with etcd service discovery
• render config files from consul key-value data
• manage app configuration with vault secrets
• generate config files from environment variables
• reload services when configuration changes
• centralize configuration for distributed apps

When to choose

• you store configuration in etcd, consul, vault, or similar backends and need it rendered into local files
• you want a small, single-binary tool with template-based config generation
• you need automatic app reloads on config change

When to avoid

• you need encrypted template functions like cget, which were removed
• you want a fully featured modern config management system with active development
• you prefer declarative infrastructure-as-code tools like Helm or Terraform

Facets

cli-tool · maturity maintenance

configuration-management templating deployment infrastructure-as-code self-hosted developer-tools windows cli go etcd consul config-templates service-discovery env-vars devops linux macos

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