Pulp 3 Minimum Viable Product » History » Revision 103
Revision 102 (bmbouter, 11/07/2017 07:45 PM) → Revision 103/167 (bmbouter, 11/07/2017 07:57 PM)
# Pulp 3.0.0 Minimum Viable Product (MVP)
<span style="color:red;">Lines highlighted in red need more attention.</span>
## Overall Guarantees
- This is not a direct replacement for Pulp 2.
- This is the minimum required for a 3.0.0 beta and GA.
- All REST API calls will update the DB using transactions as necessary to ensure data integrity.
## Legend
\[done\] means merged and documented
\[in-progress\] means started but not fully done
If there is no label the effort has not yet been started
## Authentication
As an authenticated user I can manage user(s). \[done\]
- Add a user
- View user(s)
- Update any user detail
- Delete a user
As an API user, I can have documentation to generate a JSON Web Token (JWT) without the server being online. \[done\]
As an administrator, I can disable JWT token expiration. This configuration is in the settings file and is system-wide. \[done\]
As an administrator, I can configure the JWT tokens to expire after a configurable amount of time. This configuration is in the settings file and is system-wide. \[done\]
The JWT shall have a username identifier \[done\]
<span style="color:red;">As an API user, I can authenticate any API call (except to request a JWT) with a JWT. (not certain if this should be the behavior) \[in progress\]</span>
As an API user, I can invalidate all existing JWT tokens for a given user. \[done\]
As an authenticated user, when deleting a user 'foo', all of user 'foo's existing JWTs are invalidated. \[done\]
As an un-authenticated user, I can obtain a JWT token by using a username and password. \[done\]
## Repositories
As an authenticated user, I can list all repos.
- All fields are included \[done\]
- Pagination is supported \[done\]
- <span style="color:orange;">Filtering support</span>
As an authenticated user, I can CRUD a repository
- Create a repo \[done\]
- Read a repo \[done\]
- Update all mutable repo fields \[done\]
- Delete a repo (asynchronous) \[done\]
As an authenticated user, I can list a repository's associated importers and publishers
- All fields are included \[done\]
- Pagination is supported \[done\]
<span style="color:orange;">As an authenticated user, I can see the number of content unit types with counts for each</span>
## Importers
note: Importer attributes will commonly be available on importers, but aren't guaranteed to be used by all importers.
As an authenticated user, I can CRUD an importer
- Create an importer
- Read an importer
- Update all mutable importer fields
- Delete an importer (asynchronous)
As an authenticated user I can configure the following attributes on an Importer: \[done\]
- validate (bool) \[optional: defaults to True\]: If true, the plugin will validate imported content.
- ssl_ca_certificate (str) \[optional\] String containing a PEM encoded CA certificate used to validate the server certificate presented by the external source.
- ssl_client_certificate (str) \[optional\] Contains a PEM encoded client certificate used for authentication.
- ssl_client_key (str) \[optional\] Contains a PEM encoded private key used for authentication.
- ssl_validation (bool) \[optional: defaults to True\]: If true, SSL peer validation must be performed.
- proxy_url (str) \[optional\] Contains the proxy URL. Format: scheme://user:password@host:port.
- username (str) \[optional\] Contains the username to be used for authentication when syncing.
- password (str) \[optional\] Contains the password to be used for authentication when syncing.
- <span style="color:orange;">download_policy (str) \[optional\] Contains the downloading policy name. This is a choice of three options:
\- immediate (default) - Downloading occurs during sync. The sync task does not complete until downloading is done.
\- background - Downloading is started by the sync but occurs in the background. The sync task completes before downloading is complete.
\- on-demand - The sync task records everything that would be downloaded but does not download content. Downloading occurs on demand as driven by client requests for content.</span>
- feed_url (str) \[optional\] Contains the URL of an external content source. This is optional.
- <span style="color:orange;">sync mode: (str) \[optional\]. It has two choices 'additive' and 'mirror':
\- additive (default) - all remote content is added to the local repository on sync. During sync no content is removed from the local repository.
\- mirror - the local content will mirror the remote content exactly, removing local content if not also present in the remote content.</span>
- name (str) \[required\] Contains the name.
- last_updated (datetime) \[read-only\] Contains the datetime of the last importer update.
- last_synced (datetime) \[read-only\] Contains the datetime of the last importer sync.
## Publishers
note: Publisher attributes will commonly be available on publishers, but aren't guaranteed to be used by all publishers.
As an authenticated user, I can CRUD a publisher
- Create a publisher
- Read a publisher
- Update all mutable publisher fields
- Delete a publisher (asynchronous)
As an authenticated user I can configure the following attributes on a Publisher:
- relative_path (str) \[optional\] The (relative) path component of the published url.
- name - (str) \[required\] contains the name.
- last_published (datetime) \[read-only\] When the last successful publish occurred.
- last_updated (datetime) \[read-only\] The datetime of the last publisher update.
- <span style="color:red;">auto_publish(bool) - ??? consider adding auto-publish feature to MVP</span>
## Sync and Publish
As an authenticated user, I can trigger an importer to sync. \[done\]
- I can follow the progress of all syncs. (Syncs are asynchronous.)
- I cannot pass "sync" options.
- Auto-publish is not included as an importer property.
As an authenticated user, I can trigger a publisher to publish. \[done\]
- I can follow the progress of all publishes. (Publishes are asynchronous.)
- I cannot pass "publish" options.
## Content Manipulation
#### Uploading Artifacts
As an authenticated user, I can create an Artifact by uploading a file. \[done\]
As an authenticated user, I can specify a size and/or digest to validate the uploaded file. \[done\]
#### Creating Content Units
As an authenticated user, I can create a content unit by providing the content type (in the URL), references to Artifacts, and the metadata supplied in the POST body. \[done\]
#### Add / Remove Content from a Repository
As a user I can add content (specific existing content) to a repository
- I can specify one or more content units by id/href
- I can follow the progress. (adding are asynchronous).
As a user I can remove specified content from a repository
- I can specify one or more content units by id/href
- I can follow the progress. (removing are asynchronous).
#### Simple Copy
As a user, I can search (synchronous call) a repository's content using filtering.
- note: In a separate call (async), I can add this content to another repository. This is effectively a copy operation in two calls.
As an authenticated user, I can import all content from one repository into another repository in a single async call. (Clone use case)
- I can follow the progress. (adding are asynchronous).
#### Complex Copy
As a plugin writer I can provide a rich search features with abitrary viewsets. e.g. depsolving, verisoning, etc
Examples of specific plugin use cases motivating the above general viewset
- As an authenticated user, I can add an Errata from one repository to another repository along with packages mentioned in the Errata and all their dependencies that are present in the source repository.
- As an authenticated user, I can add bunch of dependencies and store n versions back for each RPM.
- As an authenticated user, I can use depsolving and versioning copy features together
- As an authenticated user, I can copy a puppet module and all of it's dependencies from one repository to another.
- As an authenticated user, I can depsolve units to be added to a destination repo based on an errata
#### Delete
<span style="color:red;">As an authenticated user, I can delete a specific content unit</span>
<span style="color:red;">\* If the content unit is still in at least one repository the delete fails with a listing of all repositories the unit is part of.</span>
<span style="color:red;">\* Artifacts and associated files from the deleted unit are cleaned up</span>
<span style="color:red;">As an authenticated user, I can delete multiple content units with filtering</span>
<span style="color:red;">\* If a content unit is still in at least one repository the delete fails with a listing of all repositories the unit is part of.</span>
<span style="color:red;">\* Artifacts and associated files from deleted units are cleaned up</span>
## <span style="color:red;">Versioned Repositories</span>
As an authenticated user, I can list the content in a particular repository version
- All fields are included
- Pagination is supported
- <span style="color:red;">Filtering support</span>
As an authenticated user, I can discover a URL to the latest version of a repository
<span class="resource repository the on attributes or endpoint, API dedicated a through \^ Is" style="color:red;"></span>
As an authenticated user, I can run a publisher without a repository version and have it default to the latest version.
<span style="color:red;">As an authenticated user, I can delete a repository version by specifying the version</span>
<span style="color:red;">As an authenticated user, I can upload multiple content(s?) and add create a single new version that adds all of them.</span>
## Orphan Content Units and Artifacts
As an authenticated user, I can cause an action that cleans up **both** orphaned content units and orphaned artifacts.
- I cannot specify the units specifically (all types).
- I can follow the progress of all cleanups. (Cleanups are asynchronous.)
## Task Management
As an authenticated user, I can list all tasks
- <span style="color:orange;">Filtering support on \['state', 'id', 'group'\]</span>
- <span style="color:orange;">This does not include associated progress reports</span>
As an authenticated user, I can see a detail view for a specific task \[done\]
- all attributes of a task
- all associated progress reports
As an authenticated user, I can cancel a task \[done\]
- don't dare to use the DELETE verb!
As an authenticated user, I can delete tasks.
## Task Group
<span style="color:red;">I can view a summary of the status of all tasks in a group</span>
## Status
As an unauthenticated user I can view the status of Pulp workers, resource managers, and celerybeats. \[done\]
As an unauthenticated user I can view the status of the web server's connection to the database and message broker. \[done\]
As an unauthenticated user I can view the versions of core and each installed plugin.
## Plugin API
As a plugin writer, I have a plugin API that is semantically versioned at 0.x separate from the REST API \[done\]
As a plugin writer, I can report progress with a message and state \[done\]
As a plugin writer, I can report progress with an optional suffix \[done\]
As a plugin writer, I can report progress with a total count of things to do an the current count of things done \[done\]
As a plugin writer, non-fatal exceptions on the Task and are included in the Task detail. non_fatal exceptions do not cause the Task to be marked as failed, but may be interpreted by the user as not fully successful. \[done\]
As a plugin writer, the working directory is set before Task work is done and cleaned up afterwards. I should not need to interact with the file system outside of the working dir. \[done\]
<span style="color:red;">As a plugin writer, I can provide a subclassed Importer. The importer's responsibility is to synchronize the content of a Pulp repository with the content of a remote repository. (a circular import problem needs to be discussed and may cause this to change) \[done\]</span>
<span style="color:red;">As a plugin writer, I can provide a subclassed Publisher. The publisher's responsibility is to publish content. (a circular import problem needs to be discussed and may cause this to change) \[done\]</span>
As a plugin writer, I can define unit types by subclassing Content models to provide concrete content unit types to be manged by the platform. \[done\]
As a plugin writer, I can interact with and create Artifacts \[done\]
As a plugin writer, my app will be discovered by Pulp's app via an entry point provided by the plugin writer \[done\]
As a plugin writer, I can use the plugin API to query content units/artifacts associated with a repository. \[done\]
As a plugin writer, I can add and remove content units to and from a repository. \[done\]
## Plugin Writer "live APIs"
<span style="color:red;">TBD</span>
## CLI
We will use coreapi-cli to generate a one to one mapping of cli commands to rest api schema #3068
<span style="color:orange;">We will have a wrapper for coreapi-cli. This wrapper will handle parallel progress reporting</span>
## Download API
As a plugin writer, I can download files via
- http://
- https://
- file://
As a plugin writer, I can configure a downloader with:
- Basic Auth
- SSL Cert Client Auth
- Custom CAs will be configured via a "trust store" either on the system or similar. Pulp will not do anything to read/load/manage CAs directly.
As a plugin writer, I can provide arbitrary behaviors for customized downloaders
- For example token authentication in the docker plugin
As a plugin writer, I can have connection pooling/reuse
As a plugin writer, I have proxy settings
- proxy url (containing basic auth info)
As a plugin writer, I can have great logs
As a user, I have documentation about how to use something for bandwidth limiting
As a plugin writer, I can configure the validation mechanisms used at download time
- checksum validation - minimum (md5, sha1, sha256, sha512)
- size validation
<span style="color:red;">As a plugin writer, I expect units that are missing from the remote repository to not be created in Pulp when using the immediate download policy.</span>
<span style="color:red;">As a plugin writer, I expect units that are missing from the remote repository to be created in Pulp when using background or on_demand download policies.</span>
As a plugin writer I can configure mirror lists and rotate between the mirrors
- round robin
- nearest mirror support
As a plugin writer, the plugin API provides tooling whereby I can provide the content to be added and removed from the repository. This tooling supports both immediate and deferred downloading.
As a plugin writer I can manage the catalog by using ChangeSets
As a plugin writer, the plugin can participate in adding content for cases where the decision to add additional content is based content that has been downloaded.
As a plugin writer, I can fetch content myself (but I am not encouraged to do so) with code I write
As a plugin writer, I can CRUD content units
## {color:red} Consumer Applicability
<span style="color:red;">Using consumer profiles and repo bindings I can compute applicability with 2.y parity
Performance needs to be awesome</span>
<span style="color:red;">\_(Is the Pulp Consumer going away in Pulp 3? If so, is this section still appropriate?)\_</span>
## Migrations only involving Pulp 3
Users can run "pulp-manager migrate" to migrate the database and adjust state in other locations (filesystem, message broker, ...). \[done\]
## Web Server Integration
<span style="color:red;">The content app when deployed with Apache web server or nginx uses their respective features to serve files efficiently.</span>
## Glossary
Repository - A named collection of content.
Artifact - A file associated with one content (unit). Artifacts are not shared between content (units). Create a content unit using an uploaded file ID as the source for its metadata. Create Artifacts associated with the content unit using an uploaded file ID for each; commit as a single transaction.
Content (unit) - A single piece of content manged by Pulp. Each file associated with a content (unit) is called an Artifact. Each content (unit) may have zero or many Artifacts.
Orphan Content (unit): A content unit that is a member of 0 repositories
Orphan Artifact: An Artifact that is associated with 0 Content Units and 0 Publications
Add (Content Unit): An operation causing a repository to contain a content unit(s)
Remove (content unit): An operation causing a repository to not contain a content unit(s)
.