Environment Variables
This is a list of all environment variables that can be used to modify the operation of the Chef Habitat Studio and Supervisor.
| Variable | Context | Default | Description |
|---|---|---|---|
HAB_AUTH_TOKEN | build system | no default | Authorization token used to perform privileged operations against the depot, e.g. uploading packages or keys. |
HAB_BINLINK_DIR | build system | /hab/bin | Allows you to change the target directory for the symlink created when you run hab pkg binlink. The default value is already included in the $PATH variable inside the Studio. |
HAB_CACHE_KEY_PATH | build system, Supervisor | /hab/cache/keys if running as root; $HOME/.hab/cache/keys if running as non-root | Cache directory for origin signing keys |
HAB_CTL_SECRET | Supervisor | no default | Shared secret used for communicating with a Supervisor. |
HAB_BLDR_CHANNEL | build system, Supervisor | stable | Set the Chef Habitat Builder channel you are subscribing to, to a specific channel. Defaults to stable. |
HAB_BLDR_URL | build system, Supervisor | https://bldr.habitat.sh | Sets an alternate default endpoint for communicating with Builder. Used by the Chef Habitat build system and the Supervisor |
HAB_DOCKER_OPTS | build system | no default | When running a Studio on a platform that uses Docker (macOS), additional command line options to pass to the docker command. |
HAB_INTERNAL_BLDR_CHANNEL | build system, Supervisor, exporters | stable | Channel from which Chef Habitat-specific packages (e.g., core/hab-sup, core/hab-launcher, etc.) are downloaded on-demand when first called. Generally of use only for those developing Chef Habitat. Only applies to Chef Habitat-specific packages, and nothing else. |
HAB_LICENSE | build system, Supervisor, exporters | no default | Used to accept the Chef EULA. See Accepting the Chef License for valid values. |
HAB_LISTEN_CTL | Supervisor | 127.0.0.1:9632 | The listen address for the Control Gateway. This also affects hab commands that interact with the Supervisor via the Control Gateway, for example: hab sup status. |
HAB_LISTEN_GOSSIP | Supervisor | 0.0.0.0:9638 | The listen address for the Gossip System Gateway |
HAB_LISTEN_HTTP | Supervisor | 0.0.0.0:9631 | The listen address for the HTTP Gateway |
HAB_NOCOLORING | build system | no default | If set to the lowercase string "true" this environment variable will unconditionally disable text coloring where possible |
HAB_NONINTERACTIVE | build system | no default | If set to the lowercase string "true" this environment variable will unconditionally disable interactive progress bars (i.e. “spinners”) where possible |
HAB_ORG | Supervisor | no default | Organization to use when running with service group encryption |
HAB_ORIGIN | build system | no default | Origin used to build packages. The signing key for this origin is passed to the build system. |
HAB_ORIGIN_KEYS | build system | no default | Comma-separated list of origin keys to automatically share with the build system |
HAB_RING | Supervisor | no default | The name of the ring used by the Supervisor when running with wire encryption |
HAB_RING_KEY | Supervisor | no default | The contents of the ring key when running with wire encryption. Useful when running in a container. |
HAB_STUDIO_SECRET_<VARIABLE> | build system | no default | Prefix to allow environment variables into the Studio. The prefix will be removed and your variable will be passed into the Studio at build time. |
HAB_STUDIOS_HOME | build system | /hab/studios | Directory in which to create build Studios |
HAB_STUDIO_BACKLINE_PKG | build system | core/hab-backline/{{studio_version}} | Overrides the default package identifier for the “backline” package which installs the Studio baseline package set. |
HAB_STUDIO_ROOT | build system | no default | Root of the current Studio under $HAB_STUDIOS_HOME. Infrequently overridden. |
HAB_STUDIO_NOSTUDIORC | build system | no default | When set to a non-empty value, a .studiorc will not be sourced when entering an interactive Studio via hab studio enter. |
HAB_STUDIO_SUP | build system | no default | Used to customize the arguments passed to an automatically launched Supervisor, or to disable the automatic launching by setting it to false, no, or 0. |
HAB_GLYPH_STYLE | build system | full (limited on Windows) | Used to customize the rendering of unicode glyphs in UI messages. Valid values are full, limited, or ascii. |
HAB_SUP_UPDATE_MS | Supervisor | 60000 | Interval in milliseconds governing how often to check for Supervisor updates when running with the –auto-update flag. Note: This variable has been deprecated. Users should instead use the –auto-update-period flag. |
HAB_UPDATE_STRATEGY_FREQUENCY_MS | Supervisor | 60000 | Interval in milliseconds governing how often to check for service updates when running with an update strategy. Note: This variable has been deprecated. Users should instead use the –service-update-period flag. |
HAB_USER | Supervisor | no default | User key to use when running with service group encryption |
http_proxy | build system, Supervisor | no default | A URL for a local HTTP proxy server optionally supporting basic authentication |
https_proxy | build system, Supervisor | no default | A URL for a local HTTPS proxy server optionally supporting basic authentication |
NO_INSTALL_DEPS | build system | no default | Set this variable to prevent dependencies install during build |
no_proxy | build system, Supervisor | no default | A comma-separated list of domain exclusions for the http_proxy and https_proxy environment variables |
SSL_CERT_FILE | system | no default | Standard OpenSSL environment variable to override the system certificate file. This is particularly important for the secure HTTPS connection with a Builder instance. Can be used to help you navigate corporate firewalls. |