Live contexts

This page describes the contexts a live workflow can use in expressions for calculating YAML attribute values.
Live Contexts
Context name
Description
env
Contains environment variables set in a workflow or a job. For more information, see env context .
flow
Information about the main workflow settings, defaults, etc. See flow context for details.
project
Information about the project. See project context for details.
images
Contains a mapping of images on the Neu.ro registry. See images context for details.
multi
Multi-job context. For more information, see multi context.
params
A mapping of global workflow parameters. For more information, see params context.
tags
A set of job tags set in a workflow or a job. See tags context for details.
volumes
Contains a mapping of volume definitions. For more information, see volumes context.
env context
The env context contains environment variables that have been set in a workflow or a job. For more information about setting environment variables in your workflow, see "Live workflow syntax."
The env context syntax allows you to use the value of an environment variable in your workflow file. If you want to use the value of an environment variable inside a job, use your operating system's standard method for reading environment variables.
Property name
Type
Description
env.<env-name>
str
The value of a specific environment variable.
flow context
The flow context contains information about the workflow: its id, title, etc.
Property name
Type
Description
flow.flow_id
str
The workflow's ID. It's automatically generated based on the workflow's YAML filename with a dropped suffix (this will always 'live' in live mode). You can override the property by setting the flow.id attribute.
flow.project_id
str
The project's ID. It is automatically generated based on the name of the project folder. You can override it using project.id attribute. Check the project configuration for details.
flow.workspace
LocalPath
A path to the workspace (the root folder of the project).
flow.title
str
The workflow title. Set the flow.title attribute to override the auto-generated value.
project context
The projectcontext contains information about the project: its ID, owner, etc.
Property name
Type
Description
project.id
str
The project's ID. It is automatically generated based on the name of the project folder. You can override it using project.id attribute. Check the project configuration for details. This context property is an alias to flow.project_id .
project.owner
str
The project's owner. See also: the project configuration.
project.role
str
The project's role. Set the project.role attribute to override the auto-calculated value.
images context
Contains information about images defined in the images section of a live workflow.
Property name
Type
Description
images.<image-id>.id
str
The image definition identifier. For more information, see images.<image-id> section.
images.<image-id>.ref
str
The image reference. For more information, see images.<image-id>.ref attribute.
images.<image-id>.context
LocalPath or None
The context directory used for building the image or None if the context is not set. The path is relative to the project's root (flow.workspace property).
For more information, see images.<image-id>.context attribute.
images.<image-id>.full_context_path
LocalPath or None
The absolute path, pointing to the context folder if set.
images.<image-id>.dockerfile
LocalPathor None
A path to Dockerfile or None if not set.
For more information, see images.<image-id>.dockerfile attribute.
images.<image-id>.full_dockerfile_path
LocalPath or None
Full version of the dockerfile attribute.
images.<image-id>.build_args
list[str]
A sequence of additional build arguments.
For more information, see images.<image-id>.build_args attribute.
images.<image-id>.env
dict[str, str]
Environment variables passed to the image builder.
For more information, see images.<image-id>.env attribute.
images.<image-id>.volumes
list[str]
A sequence of volume definitions passed to the image builder.
For more information, see images.<image-id>.volumes attribute.​
multi context
The additional arguments passed to multi-job.
Property name
Type
Description
multi.args
str
Additional command line arguments passed to multi-job.
The command line run defines the field as neuro-flow run <job-id> -- <args>.
multi.args is mainly used for passing args to command line parameters accepted by multi-job, see jobs.<job-id>.cmd for details.
multi.suffix
str
multi-job suffix added to jobs.<job-id>.
params context
Parameter described in the jobs.<job-id>.params attribute and available for substitution - for example, in jobs.<job-id>.cmd calculation.
Property name
Type
Description
params.<param-name>
str
The value of a specific parameter.
Supported parameter values: project, flow, env, tags, volumes, images.
tags context
A set of job tags.
Tags are combined from system tags (project:<project-id>, job:<job-id>), flow default tags (see defaults.tags attribute), and job-specific tags (see jobs.<job-id>.tags attribute).
Property name
Type
Description
tags
set[str]
This context changes for each job. You can access this context from any job.
volumes context
Contains information about volumes defined in the volumes section  of a live workflow.
Property name
Type
Description
volumes.<volume-id>.id
str
The volume definition identifier. For more information, see volumes.<volume-id> section.
volumes.<volume-id>.remote
URL
Remote volume URI, e.g. storage:path/to.
For more information, see volumes.<volume-id>.remote attribute.
volumes.<volume-id>.mount
RemotePath
The path inside a job by which the volume should be mounted.
For more information, see volumes.<volume-id>.mount attribute.
volumes.<volume-id>.read_only
bool
True if the volume is mounted in read-only mode, False otherwise.
For more information, see volumes.<volume-id>.read_only attribute.
volumes.<volume-id>.local
LocalPathor None
A path in the workspace folder to synchronize with remote Neu.ro storage or None if not set.
For more information, see volumes.<volume-id>.local attribute.
volumes.<volume-id>.full_local_path
LocalPath or None
Full version of local property.
volumes.<volume-id>.ref
str
A volume reference that can be used as a jobs.<job-id>.volumes item. The calculated value looks like storage:path/to:/mnt/path:rw.
The value is assembled from remote, mount, and read_only properties.
volumes.<volume-id>.ref_ro
str
Like ref but read-only mode is enforced.
volumes.<volume-id>.ref_rw
str
Like ref but read-write mode is enforced.