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Convert pulp_file to new docs-stack.
closes pulp#5055.
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Convert to new docs-stack/layout. |
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# Role Based Access Control | ||
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Role based access control in Pulp File is configured using access policies for the following | ||
`viewset_names`: | ||
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- `acs/file/file` | ||
- `content/file/files` | ||
- `distributions/file/file` | ||
- `publications/file/file` | ||
- `remotes/file/file` | ||
- `repositories/file/file` | ||
- `repositories/file/file/versions` | ||
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This document describes the default access policies shipped with Pulp File. Each of the above | ||
policies can be modified to achieve a different RBAC behavior. Use the Pulp CLI to follow along | ||
with the examples here. | ||
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!!! note | ||
This feature is currently in tech preview and is subject to change in future releases. | ||
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!!! note | ||
Customizing the access policy will cause any future changes to the default policies, like | ||
statement changes and bugfixes, to be ignored unless reset to the default policy. | ||
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## Default Roles | ||
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Pulp File ships with three default roles baked into each viewset, except for File Content and File | ||
Repository Versions, that can be assigned to users for simple RBAC needs. The three roles for each | ||
viewset are Creator, Viewer, and Owner. Roles can be assigned at the model or object level for each | ||
user and group. Roles at the model will give the user/group permissions across all objects the role | ||
covers. Roles at the object level will restrict the permissions to a particular instance of the | ||
object. | ||
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### Creator Role | ||
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The Creator role contains just the `add` permission for that viewset's object, e.g. File | ||
Repository's Creator role: | ||
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=== "Show Creator Role" | ||
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```bash | ||
pulp role show --name "file.filerepository_creator" | ||
``` | ||
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=== "Output" | ||
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```json | ||
{ | ||
"pulp_href": "/pulp/api/v3/roles/ee3d368e-46da-430a-97bc-fbd5d207ebf3/", | ||
"pulp_created": "2022-03-23T21:13:24.183866Z", | ||
"name": "file.filerepository_creator", | ||
"description": null, | ||
"permissions": [ | ||
"file.add_filerepository" | ||
], | ||
"locked": true | ||
} | ||
``` | ||
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Only users with the `add` permission can create objects for that viewset. This role should always | ||
be used as a model level role as it makes no sense for it to be assigned at the object level. Some | ||
viewset actions will also require the user to have additional permissions for related parameters | ||
on the object's creation. An example would be needing to have the `view` permission for remotes | ||
attached to a repository: | ||
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```json | ||
"statements": [ | ||
... | ||
{ | ||
"action": [ | ||
"create" | ||
], | ||
"effect": "allow", | ||
"condition": [ | ||
"has_model_perms:file.add_filerepository", | ||
"has_remote_param_model_or_obj_perms:file.view_fileremote" | ||
], | ||
"principal": "authenticated" | ||
}, | ||
... | ||
], | ||
``` | ||
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### Viewer Role | ||
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The Viewer role contains just the `view` permission for that viewset's object, e.g. File Remote's | ||
Viewer role: | ||
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=== "Show Viewer Role" | ||
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```bash | ||
pulp role show --name "file.fileremote_viewer" | ||
``` | ||
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=== "Output" | ||
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```json | ||
{ | ||
"pulp_href": "/pulp/api/v3/roles/d3bedaa3-4ffc-46d2-b4a5-6bc205f060dd/", | ||
"pulp_created": "2022-03-23T21:13:24.176520Z", | ||
"name": "file.fileremote_viewer", | ||
"description": null, | ||
"permissions": [ | ||
"file.view_fileremote" | ||
], | ||
"locked": true | ||
} | ||
``` | ||
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Having the `view` permission allows the user to see and read the object when performing list and | ||
show operations on the viewset. Pulp File performs queryset scoping on the viewsets based off this | ||
permission, which limits the objects a user can see and interact with. Users that have this role | ||
at the model level will be able to see all of the viewset's objects in Pulp. Assigning this role | ||
only at the object level allows you to select what the user can see. | ||
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```bash | ||
# Allow alice to see every File publication | ||
pulp user role-assignment add --role "file.filepublication_viewer" --username "alice" --object "" | ||
# Allow bob to see just the publication in $PUB_HREF | ||
pulp user role-assignment add --role "file.filepublication_viewer" --username "bob" --object "$PUB_HREF" | ||
# Alternative to previous command, allows for specifying multiple users & groups | ||
pulp file publication role add --role "file.filepublication_viewer" --user "bob" --user "charlie" --group "fighters" --href "$PUB_HREF" | ||
``` | ||
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### Owner Role | ||
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The Owner role contains all of the permissions available for that viewset's objects besides the | ||
`add` permission, e.g. File ACS's Owner role: | ||
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=== "Show Owner Role" | ||
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```bash | ||
pulp role show --name "file.filealternatecontentsource_owner" | ||
``` | ||
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=== "Output" | ||
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```json | ||
{ | ||
"pulp_href": "/pulp/api/v3/roles/7e17ae48-8a9f-49c4-a248-83b397c6a5e6/", | ||
"pulp_created": "2022-03-23T21:13:24.087395Z", | ||
"name": "file.filealternatecontentsource_owner", | ||
"description": null, | ||
"permissions": [ | ||
"file.change_filealternatecontentsource", | ||
"file.delete_filealternatecontentsource", | ||
"file.manage_roles_filealternatecontentsource", | ||
"file.refresh_filealternatecontentsource", | ||
"file.view_filealternatecontentsource" | ||
], | ||
"locked": true | ||
} | ||
``` | ||
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Besides the permissions for Read, Update, and Delete actions, the Owner role has the `mange_roles` | ||
permission that allows the user to call the viewset's `add_role` and `remove_role` endpoints | ||
for easy management of roles around that viewset's object. The Owner role will also contain | ||
permissions for any additional action that can be performed on that viewset, for example `sync` | ||
and `modify` permissions for File Repository. Having this role at model level will allow a user | ||
to perform any action on any of the viewset's objects. This role is added by default to a user, | ||
at the object level, upon object creation. | ||
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=== "Create a remote and show the added role" | ||
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```bash | ||
# alice has creator role for File remote | ||
pulp --username "alice" file remote create --name "foo" --url "$FIXTURE_URL" | ||
# alice now has the owner role for the created remote | ||
pulp file remote role list --name "foo" | ||
``` | ||
=== "Output" | ||
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```json | ||
{ | ||
"roles": [ | ||
{ | ||
"role": "file.fileremote_owner", | ||
"users": [ | ||
"alice" | ||
], | ||
"groups": [] | ||
} | ||
] | ||
} | ||
``` | ||
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### Content and RepositoryVersions Permissions | ||
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File Content and RepositoryVersions are unique as they do not have any default roles on their | ||
viewsets. Content's access policy allows any authenticated user to create file content, however | ||
they must specify the repository to upload to since viewing content is scoped by the repositories | ||
the user has permission for. RepositoryVersions' access policy requires the user to have | ||
permissions on the parent repository in order to perform actions on the repository version. Both | ||
objects have CRD permissions in the database that can be assigned to users, but currently their | ||
access policies do not use them for authorization. | ||
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## Creating New Roles | ||
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The default roles shipped in Pulp File are locked roles. This means they can not be edited or | ||
deleted. If they are not sufficient for your RBAC use cases, you can create custom roles that can | ||
be assigned to users and groups. The example below shows how to create a role allowing one to | ||
view multiple objects: | ||
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```bash | ||
pulp role create --name "super_viewer" \ | ||
--permission "file.filealternatecontentsource_viewer" \ | ||
--permission "file.filedistribution_viewer" \ | ||
--permission "file.filepublication_viewer" \ | ||
--permission "file.fileremote_viewer" \ | ||
--permission "file.filerepository_viewer" | ||
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# Assign new role to alice | ||
pulp user role-assignment add --username "alice" --role "super_viewer" | ||
``` | ||
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!!! note | ||
You can only assigned roles at the object level if the role contains a permission for that | ||
object. | ||
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## Editing File Access Policies | ||
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Each Pulp File access policy can be edited to be more or less lenient. They can also be customized | ||
on role assignment upon object creation. By default each access policy will assign the default | ||
Owner role upon object creation. See the example below for how to view the File Repository's access | ||
policy and then update it to assign the new role: | ||
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```bash | ||
# View File Repository's Access Policy | ||
pulp access-policy show --viewset-name "repositories/file/file" | ||
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# Update File Repository's Creation Hooks | ||
pulp access-policy update --href "$REPO_AP_HREF" \ | ||
--creation-hooks '[{"function": "add_roles", "parameters": {"roles": "super_viewer"}}]' | ||
``` | ||
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!!! note | ||
Access polices can be reset to their default using the reset endpoint, e.g: | ||
`pulp access-policy reset --href "$REPO_AP_HREF"` | ||
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!!! note | ||
Admin users always bypass any authorization checks. | ||
|
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# Synchronize a Repository | ||
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In this section, there is provided a basic workflow for synchronizing a remote repository. | ||
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## Create a repository `foo` | ||
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=== "Create Repository foo" | ||
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```bash | ||
#!/usr/bin/env bash | ||
export REPO_NAME=$(head /dev/urandom | tr -dc a-z | head -c5) | ||
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echo "Creating a new repository named $REPO_NAME." | ||
pulp file repository create --name $REPO_NAME | ||
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echo "Inspecting repository." | ||
pulp file repository show --name $REPO_NAME | ||
``` | ||
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=== "Output" | ||
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```json | ||
{ | ||
"pulp_created": "2019-05-16T19:23:55.224096Z", | ||
"pulp_href": "/pulp/api/v3/repositories/file/file/680f18e7-0513-461f-b067-436b03285e4c/", | ||
"latest_version_href": null, | ||
"versions_href": "/pulp/api/v3/repositories/file/file/680f18e7-0513-461f-b067-436b03285e4c/versions/", | ||
"description": "", | ||
"name": "foo" | ||
} | ||
``` | ||
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## Create a new remote `bar` | ||
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=== "Create Remote bar" | ||
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```bash | ||
#!/usr/bin/env bash | ||
export REMOTE_NAME=$(head /dev/urandom | tr -dc a-z | head -c5) | ||
echo "Creating a remote that points to an external source of files." | ||
pulp file remote create --name $REMOTE_NAME \ | ||
--url 'https://fixtures.pulpproject.org/file/PULP_MANIFEST' | ||
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echo "Inspecting new Remote." | ||
pulp file remote show --name $REMOTE_NAME | ||
``` | ||
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=== "Output" | ||
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```json | ||
{ | ||
"pulp_created": "2019-05-16T19:23:56.771326Z", | ||
"pulp_href": "/pulp/api/v3/remotes/file/file/e682efef-3974-4366-aece-a333bfaec9f3/", | ||
"pulp_last_updated": "2019-05-16T19:23:56.771341Z", | ||
"download_concurrency": 20, | ||
"name": "bar", | ||
"policy": "immediate", | ||
"proxy_url": "", | ||
"ssl_ca_certificate": null, | ||
"ssl_client_certificate": null, | ||
"ssl_client_key": null, | ||
"ssl_validation": true, | ||
"url": "https://fixtures.pulpproject.org/file/PULP_MANIFEST", | ||
"validate": true | ||
} | ||
``` | ||
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## Sync repository `foo` using remote `bar` | ||
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=== "Sync foo using bar" | ||
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```bash | ||
#!/usr/bin/env bash | ||
echo "Syncing the repository using the remote." | ||
pulp file repository sync --name $REPO_NAME --remote $REMOTE_NAME | ||
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echo "Inspecting RepositoryVersion." | ||
pulp file repository version show --repository $REPO_NAME --version 1 | ||
``` | ||
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=== "Output" | ||
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```json | ||
{ | ||
"pulp_created": "2019-05-16T19:23:58.230896Z", | ||
"pulp_href": "/pulp/api/v3/repositories/file/file/680f18e7-0513-461f-b067-436b03285e4c/versions/1/", | ||
"base_version": null, | ||
"content_summary": { | ||
"added": { | ||
"file.file": { | ||
"count": 3, | ||
"href": "/pulp/api/v3/content/file/files/?repository_version_added=/pulp/api/v3/repositories/file/file/680f18e7-0513-461f-b067-436b03285e4c/versions/1/" | ||
} | ||
}, | ||
"present": { | ||
"file.file": { | ||
"count": 3, | ||
"href": "/pulp/api/v3/content/file/files/?repository_version=/pulp/api/v3/repositories/file/file/680f18e7-0513-461f-b067-436b03285e4c/versions/1/" | ||
} | ||
}, | ||
"removed": {} | ||
}, | ||
"number": 1 | ||
} | ||
``` |
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