Configuration Using Environment variables === You can choose to configure CodiMD with either a [config file](configuration-config-file.md) or with environment variables. Environment variables are processed in [`lib/config/environment.js`](../lib/config/environment.js) - so this is the first place to look if anything is missing not obvious from this document. The default values are defined in [`lib/config/default.js`](../lib/config/default.js), in case you wonder if you even need to override it. Environment variables take precedence over configurations from the config files. They generally start with `CMD_` for our own options, but we also list node-specific options you can configure this way. ## Node.JS | variable | example value | description | | -------- | ------------- | ----------- | | `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 | ## CodiMD basics defaultNotePath can't be set from env-vars | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_ALLOW_PDF_EXPORT` | `true` or `false` | Enable or disable PDF exports | | `CMD_CONFIG_FILE` | `/path/to/config.json` | optional override for the path to CodiMD's config file | | `CMD_DB_URL` | `mysql://localhost:3306/database` | Set the db in URL style. If set, then the relevant `db` config entries will be overridden. | | `CMD_LOGLEVEL` | `info`, `debug` ... | Defines what kind of logs are provided to stdout. | | `CMD_FORBIDDEN_NOTE_IDS` | `'robots.txt'` | disallow creation of notes, even if `CMD_ALLOW_FREEURL` is `true` | | `CMD_IMAGE_UPLOAD_TYPE` | `imgur`, `s3`, `minio`, `lutim` or `filesystem` | Where to upload images. For S3, see our Image Upload Guides for [S3](guides/s3-image-upload.md) or [Minio](guides/minio-image-upload.md), also there's a whole section on their respective env vars below. | | `CMD_SOURCE_URL` | `https://github.com/codimd/server/tree/` | Provides the link to the source code of CodiMD on the entry page (Please, make sure you change this when you run a modified version) | | `CMD_TOOBUSY_LAG` | `70` | CPU time for one event loop tick until node throttles connections. (milliseconds) | ## CodiMD Location | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_DOMAIN` | `codimd.org` | domain name | | `CMD_URL_PATH` | `codimd` | If CodiMD is run from a subdirectory like `www.example.com/` | | `CMD_HOST` | `localhost` | interface/ip to listen on | | `CMD_PORT` | `80` | port to listen on | | `CMD_PATH` | `/var/run/codimd.sock` | path to UNIX domain socket to listen on (if specified, `CMD_HOST` and `CMD_PORT` are ignored) | | `CMD_PROTOCOL_USESSL` | `true` or `false` | set to use SSL protocol for resources path (only applied when domain is set) | | `CMD_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) | | `CMD_ALLOW_ORIGIN` | `localhost, codimd.org` | domain name whitelist (use comma to separate) | ## CSP and HSTS | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_CSP_ENABLE` | `true` | whether to enable Content Security Policy (directives cannot be configured with environment variables) | | `CMD_CSP_REPORTURI` | `https://.report-uri.com/r/d/csp/enforce` | Allows to add a URL for CSP reports in case of violations | | `CMD_HSTS_ENABLE` | ` true` | set to enable [HSTS](https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security) if HTTPS is also enabled (default is ` true`) | | `CMD_HSTS_INCLUDE_SUBDOMAINS` | `true` | set to include subdomains in HSTS (default is `true`) | | `CMD_HSTS_MAX_AGE` | `31536000` | max duration in seconds to tell clients to keep HSTS status (default is a year) | | `CMD_HSTS_PRELOAD` | `true` | whether to allow preloading of the site's HSTS status (e.g. into browsers) | ## Privacy and External Requests | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_ALLOW_GRAVATAR` | `true` or `false` | set to `false` to disable [Libravatar](https://www.libravatar.org/) as profile picture source on your instance. Libravatar is a federated open-source alternative to Gravatar. | | `CMD_USECDN` | `true` or `false` | set to use CDN resources or not| ## Users and Privileges | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_ALLOW_ANONYMOUS` | `true` or `false` | Set to allow anonymous usage (default is `true`). | | `CMD_ALLOW_ANONYMOUS_EDITS` | `true` or `false` | If `allowAnonymous` is `true`: allow users to select `freely` permission, allowing guests to edit existing notes (default is `true`). | | `CMD_ALLOW_FREEURL` | `true` or `false` | Set to allow new note creation by accessing a nonexistent note URL. This is the behavior familiar from [Etherpad](https://github.com/ether/etherpad-lite). | | `CMD_DEFAULT_PERMISSION` | `freely`, `editable`, `limited`, `locked`, `protected` or `private` | Set notes default permission (only applied on signed-in users). | | `CMD_SESSION_LIFE` | `1209600000` (14 days) | Cookie session life time in milliseconds. | | `CMD_SESSION_SECRET` | no example | Secret used to sign the session cookie. If none is set, one will randomly generated on each startup, meaning all your users will be logged out. | ## Login methods ### Email (local account) | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_EMAIL` | `true` or `false` | Set to allow email sign-in. The default is `true`. | | `CMD_ALLOW_EMAIL_REGISTER` | `true` or `false` | Set to allow registration of new accounts using an email address. If set to `false`, you can still create accounts using the command line - see `bin/manage_users` for details (In production mode, remember to run it with `NODE_ENV` set as `production` in the enviroment). This setting has no effect if `CMD_EMAIL` is `false`. The default for `CMD_ALLOW_EMAIL_REGISTER` is `true`. | ### Dropbox Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_DROPBOX_CLIENTID` | no example | Dropbox API client id | | `CMD_DROPBOX_CLIENTSECRET` | no example | Dropbox API client secret | ### Facebook Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_FACEBOOK_CLIENTID` | no example | Facebook API client id | | `CMD_FACEBOOK_CLIENTSECRET` | no example | Facebook API client secret | ### GitHub Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_GITHUB_CLIENTID` | no example | GitHub API client id | | `CMD_GITHUB_CLIENTSECRET` | no example | GitHub API client secret | ### GitLab Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_GITLAB_SCOPE` | `read_user` or `api` | GitLab API requested scope (default is `api`) (GitLab snippet import/export need `api` scope) | | `CMD_GITLAB_BASEURL` | no example | GitLab authentication endpoint, set to use other endpoint than GitLab.com (optional) | | `CMD_GITLAB_CLIENTID` | no example | GitLab API client id | | `CMD_GITLAB_CLIENTSECRET` | no example | GitLab API client secret | | `CMD_GITLAB_VERSION` | no example | GitLab API version (v3 or v4) | ### Google Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_GOOGLE_CLIENTID` | no example | Google API client id | | `CMD_GOOGLE_CLIENTSECRET` | no example | Google API client secret | | `CMD_GOOGLE_HOSTEDDOMAIN` | `example.com` | Provided only if the user belongs to a hosted domain. default is `undefined` | ### LDAP Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_LDAP_URL` | `ldap://example.com` | URL of LDAP server | | `CMD_LDAP_BINDDN` | no example | bindDn for LDAP access | | `CMD_LDAP_BINDCREDENTIALS` | no example | bindCredentials for LDAP access | | `CMD_LDAP_SEARCHBASE` | `o=users,dc=example,dc=com` | LDAP directory to begin search from | | `CMD_LDAP_SEARCHFILTER` | `(uid={{username}})` | LDAP filter to search with | | `CMD_LDAP_SEARCHATTRIBUTES` | `displayName, mail` | LDAP attributes to search with (use comma to separate) | | `CMD_LDAP_USERIDFIELD` | `uidNumber` or `uid` or `sAMAccountName` | The LDAP field which is used uniquely identify a user on CodiMD | | `CMD_LDAP_USERNAMEFIELD` | Fallback to userid | The LDAP field which is used as the username on CodiMD | | `CMD_LDAP_TLS_CA` | `server-cert.pem, root.pem` | Root CA for LDAP TLS in PEM format (use comma to separate) | | `CMD_LDAP_PROVIDERNAME` | `My institution` | Optional name to be displayed at login form indicating the LDAP provider | ### Mattermost Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_MATTERMOST_BASEURL` | no example | Mattermost authentication endpoint for versions below 5.0. For Mattermost version 5.0 and above, see [guide](guides/auth/mattermost-self-hosted.md). | | `CMD_MATTERMOST_CLIENTID` | no example | Mattermost API client id | | `CMD_MATTERMOST_CLIENTSECRET` | no example | Mattermost API client secret | ### OAuth2 Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_OAUTH2_USER_PROFILE_URL` | `https://example.com` | Where to retrieve information about a user after successful login. Needs to output JSON. (no default value) Refer to the [Mattermost](guides/auth/mattermost-self-hosted.md) or [Nextcloud](guides/auth/nextcloud.md) examples for more details on all of the `CMD_OAUTH2...` options. | | `CMD_OAUTH2_USER_PROFILE_USERNAME_ATTR` | `name` | where to find the username in the JSON from the user profile URL. (no default value)| | `CMD_OAUTH2_USER_PROFILE_DISPLAY_NAME_ATTR` | `display-name` | where to find the display-name in the JSON from the user profile URL. (no default value) | | `CMD_OAUTH2_USER_PROFILE_EMAIL_ATTR` | `email` | where to find the email address in the JSON from the user profile URL. (no default value) | | `CMD_OAUTH2_TOKEN_URL` | `https://example.com` | sometimes called token endpoint, please refer to the documentation of your OAuth2 provider (no default value) | | `CMD_OAUTH2_AUTHORIZATION_URL` | `https://example.com` | authorization URL of your provider, please refer to the documentation of your OAuth2 provider (no default value) | | `CMD_OAUTH2_CLIENT_ID` | `afae02fckafd...` | you will get this from your OAuth2 provider when you register CodiMD as OAuth2-client, (no default value) | | `CMD_OAUTH2_CLIENT_SECRET` | `afae02fckafd...` | you will get this from your OAuth2 provider when you register CodiMD as OAuth2-client, (no default value) | | `CMD_OAUTH2_PROVIDERNAME` | `My institution` | Optional name to be displayed at login form indicating the oAuth2 provider | ### SAML Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_SAML_IDPSSOURL` | `https://idp.example.com/sso` | authentication endpoint of IdP. for details, see [guide](guides/auth/saml-onelogin.md). | | `CMD_SAML_IDPCERT` | `/path/to/cert.pem` | certificate file path of IdP in PEM format | | `CMD_SAML_ISSUER` | no example | Issuer to supply to identity provider (optional, default: `serverURL` config)" | | `CMD_SAML_DISABLEREQUESTEDAUTHNCONTEXT` | `true` or `false` | true to allow any authentication method, false restricts to password authentication (PasswordProtectedTransport) method (default: false) | | `CMD_SAML_IDENTIFIERFORMAT` | no example | name identifier format (optional, default: `urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress`) | | `CMD_SAML_GROUPATTRIBUTE` | `memberOf` | attribute name for group list (optional) | | `CMD_SAML_REQUIREDGROUPS` | `codimd-users` | group names that allowed (use vertical bar to separate) (optional) | | `CMD_SAML_EXTERNALGROUPS` | `Temporary-staff` | group names that not allowed (use vertical bar to separate) (optional) | | `CMD_SAML_ATTRIBUTE_ID` | `sAMAccountName` | attribute map for `id` (optional, default: NameID of SAML response) | | `CMD_SAML_ATTRIBUTE_USERNAME` | `mailNickname` | attribute map for `username` (optional, default: NameID of SAML response) | | `CMD_SAML_ATTRIBUTE_EMAIL` | `mail` | attribute map for `email` (optional, default: NameID of SAML response if `CMD_SAML_IDENTIFIERFORMAT` is default) | ### Twitter Login | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_TWITTER_CONSUMERKEY` | no example | Twitter API consumer key | | `CMD_TWITTER_CONSUMERSECRET` | no example | Twitter API consumer secret | ## Upload Storage These are only relevant when they are also configured in sync with their `CMD_IMAGE_UPLOAD_TYPE`. Also keep in mind, that `filesystem` is available, so you don't have to use either of these. ### Amazon S3 | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_S3_ACCESS_KEY_ID` | no example | AWS access key id | | `CMD_S3_SECRET_ACCESS_KEY` | no example | AWS secret key | | `CMD_S3_REGION` | `ap-northeast-1` | AWS S3 region | | `CMD_S3_BUCKET` | no example | AWS S3 bucket name | ### Azure Blob Storage | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_AZURE_CONNECTION_STRING` | no example | Azure Blob Storage connection string | | `CMD_AZURE_CONTAINER` | no example | Azure Blob Storage container name (automatically created if non existent) | ### imgur | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_IMGUR_CLIENTID` | no example | Imgur API client id | ### Minio | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_MINIO_ACCESS_KEY` | no example | Minio access key | | `CMD_MINIO_SECRET_KEY` | no example | Minio secret key | | `CMD_MINIO_ENDPOINT` | `minio.example.org` | Address of your Minio endpoint/instance | | `CMD_MINIO_PORT` | `9000` | Port that is used for your Minio instance | | `CMD_MINIO_SECURE` | `true` | If set to `true` HTTPS is used for Minio | ### Lutim | variable | example value | description | | -------- | ------------- | ----------- | | `CMD_LUTIM_URL` | `https://framapic.org/` | When `CMD_IMAGE_UPLOAD_TYPE` is set to `lutim`, you can setup the lutim url | **Note:** *Due to the rename process we renamed all `HMD_`-prefix variables to be `CMD_`-prefixed. The old ones continue to work.* **Note:** *relative paths are based on CodiMD's base directory*