- 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)
[](https://microbadger.com/images/hackmdio/hackmd "Get your own version badge on microbadger.com") [](https://microbadger.com/images/hackmdio/hackmd "Get your own image badge on microbadger.com")
[](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")
| `NODE_ENV` | `production` or `development` | set current environment (will apply corresponding settings in the `config.json`) |
| `DEBUG` | `true` or `false` | set debug mode; show more logs |
| `HMD_DOMAIN` | `hackmd.io` | domain name |
| `HMD_URL_PATH` | `hackmd` | sub URL path, like `www.example.com/<URL_PATH>` |
| `HMD_PORT` | `80` | web app port |
| `HMD_ALLOW_ORIGIN` | `localhost, hackmd.io` | domain name whitelist (use comma to separate) |
| `HMD_PROTOCOL_USESSL` | `true` or `false` | set to use SSL protocol for resources path (only applied when domain is set) |
| `HMD_URL_ADDPORT` | `true` or `false` | set to add port on callback URL (ports `80` or `443` won't be applied) (only applied when domain is set) |
| `HMD_USECDN` | `true` or `false` | set to use CDN resources or not (default is `true`) |
| `HMD_ALLOW_ANONYMOUS` | `true` or `false` | set to allow anonymous usage (default is `true`) |
| `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_ALLOW_FREEURL` | `true` or `false` | set to allow new note creation by accessing a nonexistent note URL |
| `HMD_DEFAULT_PERMISSION` | `freely`, `editable`, `limited`, `locked` or `private` | set notes default permission (only applied on signed users) |
| `HMD_DB_URL` | `mysql://localhost:3306/database` | set the database URL |
| `HMD_FACEBOOK_CLIENTID` | no example | Facebook API client id |
| `HMD_FACEBOOK_CLIENTSECRET` | no example | Facebook API client secret |
| `HMD_TWITTER_CONSUMERKEY` | no example | Twitter API consumer key |
| `HMD_TWITTER_CONSUMERSECRET` | no example | Twitter API consumer secret |
| `HMD_GITHUB_CLIENTID` | no example | GitHub API client id |
| `HMD_GITHUB_CLIENTSECRET` | no example | GitHub API client secret |
| `HMD_GITLAB_SCOPE` | `read_user` or `api` | GitLab API requested scope (default is `api`) (GitLab snippet import/export need `api` scope) |
| `HMD_GITLAB_BASEURL` | no example | GitLab authentication endpoint, set to use other endpoint than GitLab.com (optional) |
| `HMD_GITLAB_CLIENTID` | no example | GitLab API client id |
| `HMD_GITLAB_CLIENTSECRET` | no example | GitLab API client secret |
| `HMD_MATTERMOST_BASEURL` | no example | Mattermost authentication endpoint |
| `HMD_MATTERMOST_CLIENTID` | no example | Mattermost API client id |
| `HMD_MATTERMOST_CLIENTSECRET` | no example | Mattermost API client secret |
| `HMD_DROPBOX_CLIENTID` | no example | Dropbox API client id |
| `HMD_DROPBOX_CLIENTSECRET` | no example | Dropbox API client secret |
| `HMD_GOOGLE_CLIENTID` | no example | Google API client id |
| `HMD_GOOGLE_CLIENTSECRET` | no example | Google API client secret |
| `HMD_LDAP_URL` | `ldap://example.com` | URL of LDAP server |
| `HMD_LDAP_BINDDN` | no example | bindDn for LDAP access |
| `HMD_LDAP_BINDCREDENTIALS` | no example | bindCredentials for LDAP access |
| `HMD_LDAP_TOKENSECRET` | `supersecretkey` | secret used for generating access/refresh tokens |
| `HMD_LDAP_SEARCHBASE` | `o=users,dc=example,dc=com` | LDAP directory to begin search from |
| `HMD_LDAP_SEARCHFILTER` | `(uid={{username}})` | LDAP filter to search with |
| `HMD_LDAP_SEARCHATTRIBUTES` | `displayName, mail` | LDAP attributes to search with (use comma to separate) |
| `HMD_LDAP_USERNAMEFIELD` | `uid` | The LDAP field which is used as the username on HackMD |
| `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 image. For S3, see our Image Upload Guides for [S3](docs/guides/s3-image-upload.md) or [Minio](docs/guides/minio-image-upload.md) |
| `HMD_S3_ACCESS_KEY_ID` | no example | AWS access key id |
| `HMD_S3_SECRET_ACCESS_KEY` | no example | AWS secret key |
| `HMD_S3_REGION` | `ap-northeast-1` | AWS S3 region |
| `HMD_S3_BUCKET` | no example | AWS S3 bucket name |
| `HMD_MINIO_ACCESS_KEY` | no example | Minio access key |
| `HMD_MINIO_SECRET_KEY` | no example | Minio secret key |
| `HMD_MINIO_ENDPOINT` | `minio.example.org` | Address of your Minio endpoint/instance |
| `HMD_MINIO_PORT` | `9000` | Port that is used for your Minio instance |
| `HMD_MINIO_SECURE` | `true` | If set to `true` HTTPS is used for Minio |
| `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) |
| `debug` | `true` or `false` | set debug mode, show more logs |
| `domain` | `localhost` | domain name |
| `urlpath` | `hackmd` | sub URL path, like `www.example.com/<urlpath>` |
| `port` | `80` | web app port |
| `alloworigin` | `['localhost']` | domain name whitelist |
| `usessl` | `true` or `false` | set to use SSL server (if `true`, will auto turn on `protocolusessl`) |
| `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/) |
| `sslkeypath` | `./cert/client.key` | SSL key path (only need when you set `usessl`) |
| `sslcertpath` | `./cert/hackmd_io.crt` | SSL cert path (only need when you set `usessl`) |
| `sslcapath` | `['./cert/COMODORSAAddTrustCA.crt']` | SSL ca chain (only need when you set `usessl`) |
| `dhparampath` | `./cert/dhparam.pem` | SSL dhparam path (only need when you set `usessl`) |
| `documentmaxlength` | `100000` | note max length |
| `email` | `true` or `false` | set to allow email signin |
| `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`(default), `s3`, `minio` or `filesystem` | Where to upload image
| `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) |
| `s3bucket` | `YOUR_S3_BUCKET_NAME` | bucket name when `imageuploadtype` is set to `s3` or `minio` |
