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Let's Encrypt/ACME client and library written in Go
https://go-acme.github.io/lego/
| .github | ||
| acme | ||
| certcrypto | ||
| certificate | ||
| challenge | ||
| cmd | ||
| docs | ||
| e2e | ||
| internal | ||
| lego | ||
| log | ||
| platform | ||
| providers | ||
| registration | ||
| .dockerignore | ||
| .gitcookies.enc | ||
| .gitignore | ||
| .golangci.yml | ||
| .goreleaser.yml | ||
| buildx.Dockerfile | ||
| CHANGELOG.md | ||
| CONTRIBUTING.md | ||
| Dockerfile | ||
| go.mod | ||
| go.sum | ||
| LICENSE | ||
| Makefile | ||
| README.md | ||
Automatic Certificates and HTTPS for everyone.
Lego
Let's Encrypt client and ACME library written in Go.
Features
- ACME v2 RFC 8555
- Support RFC 8737: TLS Application‑Layer Protocol Negotiation (ALPN) Challenge Extension
- Support RFC 8738: certificates for IP addresses
- Support draft-ietf-acme-ari-02: Renewal Information (ARI) Extension
- Register with CA
- Obtain certificates, both from scratch or with an existing CSR
- Renew certificates
- Revoke certificates
- Robust implementation of all ACME challenges
- HTTP (http-01)
- DNS (dns-01)
- TLS (tls-alpn-01)
- SAN certificate support
- CNAME support by default
- Comes with multiple optional DNS providers
- Custom challenge solvers
- Certificate bundling
- OCSP helper function
Installation
How to install.
Usage
Documentation
Documentation is hosted live at https://go-acme.github.io/lego/.
DNS providers
Detailed documentation is available here.
If your DNS provider is not supported, please open an issue.