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# @root/greenlock
🔐 Free SSL, Free Wildcard SSL, and Fully Automated HTTPS for Node.js and Browsers, issued by Let's Encrypt v2 via ACME
Greenlock™ is the easiest way to integrate Let's Encrypt into your projects, products, and infrastructure.
- [x] **Wildcard** Certificates
- [x] **IoT** Environments
- [x] **Enterprise** and **On-Prem**
- [x] **Private** Networks
- [x] **Localhost** Development
- [x] **Web Hosting** Providers
- [x] **Commercial** support
We've built it simple enough for Hobbyists, and robust enough for the Enterprise.
<!--
# Localhost Development
<details>
<summary>HTTPS on Localhost</summary>
TODO
</details>
# WebServer with Automatic HTTPS
<details>
<summary>Learn more about the Greenlock Web Server</summary>
TODO
</details>
# Commandline
<details>
<summary>Learn more about the Greenlock CLI</summary>
TODO
</details>
-->
# JavaScript Library
<details>
<summary>Greenlock API (shared among JS implementations)</summary>
### Instantiate
```js
// Creates an instance of greenlock with certain default values
var gl = Greenlock.create({
// Staging for testing environments
staging: true,
// This should be the contact who receives critical bug and security notifications
// Optionally, you may receive other (very few) updates, such as important new features
maintainerEmail: 'jon@example.com'
});
```
| Parameter | Description |
| --------------- | ------------------------------------------------------------------------------------ |
| maintainerEmail | the developer contact for critical bug and security notifications |
| packageAgent | if you publish your package for others to use, `require('./package.json').name` here |
<!--
| maintainerUpdates | (default: false) receive occasional non-critical notifications |
maintainerUpdates: true // default: false
-->
### Add Approved Domains
```js
greenlock.manager.defaults({
// The "Let's Encrypt Subscriber" (often the same as the maintainer)
// NOT the end customer (except where that is also the maintainer)
subscriberEmail: 'jon@example.com',
agreeToTerms: true
});
```
| Parameter | Description |
| ------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------- |
| agreeToTerms | (default: false) either 'true' or a function that presents the Terms of Service and returns it once accepted |
| challenges['http-01'] | provide an http-01 challenge module |
| challenges['dns-01'] | provide a dns-01 challenge module |
| challenges['tls-alpn-01'] | provide a tls-alpn-01 challenge module |
| challenges[type].module | the name of your challenge module |
| challenges[type].xxxx | module-specific options |
| servername | the default servername to use for non-sni requests (many IoT clients) |
| subscriberEmail | the contact who agrees to the Let's Encrypt Subscriber Agreement and the Greenlock Terms of Service<br>this contact receives renewal failure notifications |
| store | override the default storage module |
| store.module | the name of your storage module |
| store.xxxx | options specific to your storage module |
<!--
| serverId | an arbitrary name to distinguish this server within a cluster of servers |
-->
```js
gl.add({
subject: 'example.com',
altnames: ['example.com', 'www.example.com', 'exampleapi.com']
});
```
| Parameter | Description |
| --------------- | -------------------------------------------------------------------------------------------- |
| subject | the first domain on, and identifier of the certificate |
| altnames | first domain, plus additional domains<br>note: the order should always be the same |
| subscriberEmail | if different from the default (i.e. multi-tenant, whitelabel) |
| agreeToTerms | if subscriber is different from the default |
| challenges | (same as main config) use if this site needs to use non-default http-01 or dns-01 validation |
### Issue Certificates
```js
return greenlock.get({ servername }).then(function(site) {
if (!site) {
console.log(servername + ' was not found in any site config');
return;
}
var privkey = site.pems.privkey;
var fullchain = site.pems.cert + '\n' + site.pems.chain + '\n';
console.log(privkey);
console.log(fullchain);
});
```
| Parameter | Description |
| ---------- | ------------------------------------------------------ |
| servername | the first domain on, and identifier of the certificate |
### Renew Certificates
This will renew only domains that have reached their `renewAt` or are within the befault `renewOffset`.
```js
return greenlock.renew({}).then(function(results) {
results.forEach(function(site) {
if (site.error) {
console.error(site.subject, site.error);
return;
}
console.log('Renewed certificate for', site.subject, site.altnames);
});
});
```
| Parameter | Type | Description |
| ------------- | ---- | ------------------------------------------------------------------------------- |
| (optional) | | ALL parameters are optional, but some should be paired |
| force | bool | force silly options, such as tiny durations |
| issuedBefore | ms | Check domains issued before the given date in milliseconds |
| expiresBefore | ms | Check domains that expire before the given date in milliseconds |
| renewBefore | ms | Check domains that are scheduled to renew before the given date in milliseconds |
## Force a certificate to renew
```js
greenlock.update({ subject, renewAt: 0 }).then(function() {
return greenlock.renew({});
});
```
<!--
| servername | string<br>hostname | renew the certificate that has this domain in its altnames (for ServerName Indication / SNI lookup) |
| renewOffset | string<br>+ duration | renew domains that have been **issued** after the given duration. ex: '45d' (45 days _after_) |
| renewOffset | string<br>- duration | renew domains, by this duration, before they **expire**. ex: '-3w' (3 weeks _before_) |
-->
Note: only previous approved domains (via `gl.add()`) may be renewed
Note: this will NOT throw an **error**. It will return an array of certifates or errors.
### More
TODO
</details>
<details>
<summary>Node.js</summary>
```bash
npm install --save @root/greenlock
npm install --save greenlock-manager-fs
npm install --save greenlock-store-fs
npm install --save acme-http-01-standalone
```
<!--
TODO
</details>
<details>
<summary>Express.js</summary>
```js
'use strict';
var Greenlock = require(@root/greenlock-express);
var greenlock = Greenlock.create({
// for security and critical bug notices
maintainerEmail: 'jon@example.com'
// for
maintainerNewsletter: true
});
```
</details>
<details>
<summary>WebPack</summary>
TODO
</details>
<details>
<summary>VanillaJS for Browsers</summary>
TODO
</details>
-->
# HTTP-01 &amp; DNS-01 Integrations
For Public Web Servers running on a VPS, the **default HTTP-01 challenge plugin**
will work just fine for most people.
However, for
- **Wildcard Certificates**
- **IoT Environments**
- **Enterprise On-Prem**
- **Private Networks**
Greenlock provides an easy way to integrate Let's Encrypt with your existing services
through a variety of **DNS-01** infrastructure
Why
Typically file propagation is faster and more reliably than DNS propagation.
Therefore, http-01 will be preferred to dns-01 except when wildcards or **private domains** are in use.
http-01 will only be supplied as a defaut if no other challenge is provided.
You can use ACME (Let's Encrypt) with
- [x] DNS-01 Challenges
- CloudFlare
- [Digital Ocean](https://git.rootprojects.org/root/acme-dns-01-digitalocean.js)
- [DNSimple](https://git.rootprojects.org/root/acme-dns-01-dnsimple.js)
- [DuckDNS](https://git.rootprojects.org/root/acme-dns-01-duckdns.js)
- [GoDaddy](https://git.rootprojects.org/root/acme-dns-01-godaddy.js)
- [Gandi](https://git.rootprojects.org/root/acme-dns-01-gandi.js)
- [NameCheap](https://git.rootprojects.org/root/acme-dns-01-namecheap.js)
- [Name&#46;com](https://git.rootprojects.org/root/acme-dns-01-namedotcom.js)
- Route53 (AWS)
- [Vultr](https://git.rootprojects.org/root/acme-dns-01-vultr.js)
- Build your own
- [x] HTTP-01 Challenges
- [In-Memory](https://git.rootprojects.org/root/acme-http-01-standalone.js) (Standalone)
- [FileSystem](https://git.rootprojects.org/root/acme-http-01-webroot.js) (WebRoot)
- S3 (AWS, Digital Ocean, etc)
- [x] TLS-ALPN-01 Challenges
- Contact us to learn about Greenlock Pro
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