- npm (and its dependencies, especially [uWebSockets](https://github.com/uWebSockets/uWebSockets#nodejs-developers), [node-gyp](https://github.com/nodejs/node-gyp#installation))
2. Enter the directory and type `bin/setup`, which will install npm dependencies and create configs. The setup script is written in Bash, you would need bash as a prerequisite.
[](http://play-with-docker.com?stack=https://github.com/hackmdio/docker-hackmd/raw/master/docker-compose.yml&stack_name=hackmd)
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[](https://microbadger.com/images/hackmdio/hackmd:alpine "Get your own version badge on microbadger.com") [](https://microbadger.com/images/hackmdio/hackmd:alpine "Get your own image badge on microbadger.com")
We deprecated the older lower case config style and moved on to camel case style. Please have a look at the current `config.json.example` and check the warnings on startup.
*Notice: This is not a breaking change right now but in the future*
| `HMD_ALLOW_ANONYMOUS_EDITS` | `true` or `false` | if `allowAnonymous` is `true`, allow users to select `freely` permission, allowing guests to edit existing notes (default is `false`) |
| `HMD_LDAP_TLS_CA` | `server-cert.pem, root.pem` | Root CA for LDAP TLS in PEM format (use comma to separate) |
| `HMD_LDAP_PROVIDERNAME` | `My institution` | Optional name to be displayed at login form indicating the LDAP provider |
| `HMD_SAML_IDPSSOURL` | `https://idp.example.com/sso` | authentication endpoint of IdP. for details, see [guide](docs/guides/auth.md#saml-onelogin). |
| `HMD_SAML_IDPCERT` | `/path/to/cert.pem` | certificate file path of IdP in PEM format |
| `HMD_SAML_ISSUER` | no example | identity of the service provider (optional, default: serverurl)" |
| `HMD_SAML_IDENTIFIERFORMAT` | no example | name identifier format (optional, default: `urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress`) |
| `HMD_SAML_GROUPATTRIBUTE` | `memberOf` | attribute name for group list (optional) |
| `HMD_SAML_REQUIREDGROUPS` | `Hackmd-users` | group names that allowed (use vertical bar to separate) (optional) |
| `HMD_SAML_EXTERNALGROUPS` | `Temporary-staff` | group names that not allowed (use vertical bar to separate) (optional) |
| `HMD_SAML_ATTRIBUTE_ID` | `sAMAccountName` | attribute map for `id` (optional, default: NameID of SAML response) |
| `HMD_SAML_ATTRIBUTE_USERNAME` | `mailNickname` | attribute map for `username` (optional, default: NameID of SAML response) |
| `HMD_SAML_ATTRIBUTE_EMAIL` | `mail` | attribute map for `email` (optional, default: NameID of SAML response if `HMD_SAML_IDENTIFIERFORMAT` is default) |
| `HMD_IMGUR_CLIENTID` | no example | Imgur API client id |
| `HMD_EMAIL` | `true` or `false` | set to allow email signin |
| `HMD_ALLOW_PDF_EXPORT` | `true` or `false` | Enable or disable PDF exports |
| `HMD_ALLOW_EMAIL_REGISTER` | `true` or `false` | set to allow email register (only applied when email is set, default is `true`. Note `bin/manage_users` might help you if registration is `false`.) |
| `HMD_IMAGE_UPLOAD_TYPE` | `imgur`, `s3`, `minio` or `filesystem` | Where to upload images. For S3, see our Image Upload Guides for [S3](docs/guides/s3-image-upload.md) or [Minio](docs/guides/minio-image-upload.md) |
| `HMD_HSTS_ENABLE` | ` true` | set to enable [HSTS](https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security) if HTTPS is also enabled (default is ` true`) |
| `HMD_HSTS_INCLUDE_SUBDOMAINS` | `true` | set to include subdomains in HSTS (default is `true`) |
| `HMD_HSTS_MAX_AGE` | `31536000` | max duration in seconds to tell clients to keep HSTS status (default is a year) |
| `HMD_HSTS_PRELOAD` | `true` | whether to allow preloading of the site's HSTS status (e.g. into browsers) |
| `HMD_CSP_ENABLE` | `true` | whether to enable Content Security Policy (directives cannot be configured with environment variables) |
| `hsts` | `{"enable": true, "maxAgeSeconds": 31536000, "includeSubdomains": true, "preload": true}` | [HSTS](https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security) options to use with HTTPS (default is the example value, max age is a year) |
| `csp` | `{"enable": true, "directives": {"scriptSrc": "trustworthy-scripts.example.com"}, "upgradeInsecureRequests": "auto", "addDefaults": true}` | Configures [Content Security Policy](https://helmetjs.github.io/docs/csp/). Directives are passed to Helmet - see [their documentation](https://helmetjs.github.io/docs/csp/) for more information on the format. Some defaults are added to the configured values so that the application doesn't break. To disable this behaviour, set `addDefaults` to `false`. Further, if `usecdn` is on, some CDN locations are allowed too. By default (`auto`), insecure (HTTP) requests are upgraded to HTTPS via CSP if `useSSL` is on. To change this behaviour, set `upgradeInsecureRequests` to either `true` or `false`. |
| `protocolUseSSL` | `true` or `false` | set to use SSL protocol for resources path (only applied when domain is set) |
| `urlAddPort` | `true` or `false` | set to add port on callback URL (ports `80` or `443` won't be applied) (only applied when domain is set) |
| `useCDN` | `true` or `false` | set to use CDN resources or not (default is `true`) |
| `allowAnonymous` | `true` or `false` | set to allow anonymous usage (default is `true`) |
| `allowAnonymousEdits` | `true` or `false` | if `allowAnonymous` is `true`: allow users to select `freely` permission, allowing guests to edit existing notes (default is `false`) |
| `allowFreeURL` | `true` or `false` | set to allow new note creation by accessing a nonexistent note URL |
| `defaultPermission` | `freely`, `editable`, `limited`, `locked`, `protected` or `private` | set notes default permission (only applied on signed users) |
| `dbURL` | `mysql://localhost:3306/database` | set the db URL; if set, then db config (below) won't be applied |
| `db` | `{ "dialect": "sqlite", "storage": "./db.hackmd.sqlite" }` | set the db configs, [see more here](http://sequelize.readthedocs.org/en/latest/api/sequelize/) |
| `allowEmailRegister` | `true` or `false` | set to allow email register (only applied when email is set, default is `true`. Note `bin/manage_users` might help you if registration is `false`.) |
| `imageUploadType` | `imgur`, `s3`, `minio`, `azure` or `filesystem`(default) | Where to upload images. For S3, see our Image Upload Guides for [S3](docs/guides/s3-image-upload.md) or [Minio](docs/guides/minio-image-upload.md)|
| `minio` | `{ "accessKey": "YOUR_MINIO_ACCESS_KEY", "secretKey": "YOUR_MINIO_SECRET_KEY", "endpoint": "YOUR_MINIO_HOST", port: 9000, secure: true }` | When `imageUploadType` is set to `minio`, you need to set this key. Also checkout our [Minio Image Upload Guide](docs/guides/minio-image-upload.md) |
| `s3` | `{ "accessKeyId": "YOUR_S3_ACCESS_KEY_ID", "secretAccessKey": "YOUR_S3_ACCESS_KEY", "region": "YOUR_S3_REGION" }` | When `imageuploadtype` be set to `s3`, you would also need to setup this key, check our [S3 Image Upload Guide](docs/guides/s3-image-upload.md) |
