Pulp 3 Minimum Viable Product » History » Revision 152
Revision 151 (dkliban@redhat.com, 03/29/2018 11:33 PM) → Revision 152/167 (amacdona@redhat.com, 04/02/2018 07:38 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 authenticate any API call with Basic auth \[done\] As an authenticated user, I can filter users by: \[[3142](https://pulp.plan.io/issues/3142)\] - username: (equality, username_in_list) ## Repositories As an authenticated user, I can list all repos. - All fields are included \[done\] - Pagination is supported \[done\] As an authenticated user I can use filters on Repositories list: \[[3079](https://pulp.plan.io/issues/3079)\] - id: (id_in_list) \# id equality is not necessary, v3/repositories/\<UUID\>/ - name: (equality, name_in_list) As an authenticated user, I can CRUD a repository - Create a repo \[done\] - Read a repo \[done\] - Update all mutable repo fields (asynchronous) \[done\] - Delete a repo (asynchronous) As an authenticated user, I can see the number of content unit types with counts for each \[done\]\[[3059](https://pulp.plan.io/issues/3059)\] As an authenticated user, when viewing a repository, I can discover a URL to the latest version of a repository. \[done\]\[[3235](https://pulp.plan.io/issues/3235)\] \[[3235](https://pulp.plan.io/issues/3235)\] ## Remotes note: Remote attributes will commonly be available on remotes, but aren't guaranteed to be used by all remotes. As an authenticated user, I can CRUD an remote - Create an remote - Read an remote - Update all mutable remote fields (asynchronous) - Delete an remote (asynchronous) As an authenticated user, I have filters on the Importer list: \[[3080](https://pulp.plan.io/issues/3080)\] - id: (id_in_list) \# id equality is not necessary, objects are referenced by id - name: (equality, name_in_list) 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. - name (str) \[required\] Contains the name. - last_updated (datetime) \[read-only\] Contains the datetime of the last remote update. - last_synced (datetime) \[read-only\] Contains the datetime of the last remote sync. <span style="color:red;">As an authenticated user, I can define a default remote on a repo via href to be used whenever a new repo version is created.</span> ## 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 (asynchronous) - Delete a publisher (asynchronous) As an authenticated user, I have filters on the Publisher list: \[[3081](https://pulp.plan.io/issues/3081)\] - id: (id_in_list) \# id equality is not necessary, objects are referenced by id - name: (equality, name_in_list) 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 publis%{color:red}h 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> ## Distributions As an authenticated user, I can CRUD Distributions: - Create a Distribution. - Read a Distribution - List Distributions - Update all mutable Distribution fields (synchronous) \- base path \- http \- https - Delete an Distribution (synchronous) <span style="color:red;">As a user, my distribution base paths don't conflict and my create/update is rejected identifying the conflicting distributions \[[2987](https://pulp.plan.io/issues/2987)\]</span> As an authenticated user, I can create or update a distribution that is not associated with any publication (NULL) As an authenticated user, I can create or update a distribution that is not associated with any publisher (NULL) As a user, I can update a Distribution to distribute a specific Publication <span style="color:red;">As a user, I want a newly created publication to be automatically served by the content as defined by distributions.</span> As a user, I can see the full urls my base path is served at <span style="color:red;">As an authenticated user, I have filters on the Distribution list: \[[3082](https://pulp.plan.io/issues/3082)\]</span> - name: (equality, name_in_list) - base_path: (equality, substring, base_path_in_list) ## Publications As an authenticated user, when creating a Publication, I can post a repo version href to be published. \[[3221](https://pulp.plan.io/issues/3221)\] As an authenticated user, I can publish a repository's latest version by posting a repository href to be published. \[[3223](https://pulp.plan.io/issues/3223)\] As an authenticated user, I can view which repository version was used to create a particular publication. \[[3237](https://pulp.plan.io/issues/3237)\] As an authenticated user, I can read Publication(s) - Read a Publication - id, created datetime, list of distribution hrefs, repo version - List all Publications - ordered by created datetime in descending order As an authenticated user, I can delete publications. \- asynchronously with a lock on the repository version. \- prevented if associated with a distribution. \- single object only. As an authenticated user, I can list publications and I have enough information to choose which ones to delete. - choose by created (older ones or perhaps latest) - choose not associated to a distribution. - does not imply filtering As an authenticated user, I can list publications and i have enough information to select a publication to be associated with a distribution. - choose by created (latest or just by publish date) \- manual promotion. "My rawhide publication has been tested and now I want to promote it to stable". \- rollback to an earlier publication. - does not imply filtering As an authenticated user, I can determine if and how a publication is distributed. ## Exporters <span style="color:black;">As a plugin writer, I can contribute an exporter that is discovered by core</span> <span style="color:black;">As a plugin writer, I have docs on how to create a discoverable exporter</span> <span style="color:black;">As a plugin writer, I can contribute an exporter that uses a publication.</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.) - <span style="color:red;">I cannot pass "sync" options. \[DOES THIS PRODUCE AN ERROR??\]</span> - <span style="color:red;">Auto-publish is not included as an importer property. \[SEEMS LIKE AN ANTI-REQUIREMENT\]</span> As an authenticated user, I can trigger a publisher to publish. \[done\] - I can follow the progress of all publishes. (Publishes are asynchronous.) - <span style="color:red;">I cannot pass "publish" options. \[DOES THIS PRODUCE AN ERROR??\]</span> ## 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. \[done\] #### Simple Copy As an authenticated user, I can search (synchronous call) a repository version's content using filtering. - note: In a separate call (async), I can add_content_units or remove_content_units to another repository's latest version. #### Complex Copy As a plugin writer I can provide a rich search features with arbitrary viewsets. e.g. depsolving, versioning, 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 As an authenticated user, I can delete a specific content unit - If the content unit is still in at least one repository version the delete fails - Error message saying that the unit is in use by a repo version and a link to the filter to return all of the repo versions. - <span style="color:red;">Content unit deletion needs to be race condition free. For example: cannot delete a content unit during (for example) \- sync that may be assuming the content exits. \- copy operation</span> <!-- end list --> - As a user, I know that files (Artifacts) associated with the Content unit are not removed by this call (docs) #### Filtering <span style="color:red;">As an authenticated user, I can filter Content by repository version information when plugin writers have provided such a filter</span> As an authenticated user, I can filter content by repository version As an authenticated user, I can filter content by type <span style="color:red;">As an authenticated user, I can filter content on plugin specific attributes when plugin writers have provided such a filter</span> ## Versioned Repositories #### CRD As an authenticated user, I can create a new repository version. \[[3173](https://pulp.plan.io/issues/3173)\] As an authenticated user, I can list versions for a particular repository. \[done\] - Pagination is supported As an authenticated user, I can filter repository versions by: \[[3238](https://pulp.plan.io/issues/3238)\] - number (equality, lt/lte, gt/gte) - content id (equality, content_in_list) - created datetime (range) As an authenticated user, I can delete any repository version. \[[3219](https://pulp.plan.io/issues/3219)\] As an authenticated user, I can view content that was added or removed in a particular repository version (as compared to the previous version). \[done\] #### Repository Version Content As a user, I know content sets for repository versions are immutable. \[done\] As an authenticated user, I can list the content in a particular repository version \[done\] - All fields are included - Pagination is supported As an authenticated user, I can create a new version by adding or removing content to the latest version. \[[3234](https://pulp.plan.io/issues/3234)\] - I can follow the progress. (adding/removing are asynchronous). - can add and remove together in a single call <span style="color:red;">As a user, I have docs that when a new RepositoryVersion is created, add_many and remove_many are performed without executing before any Plugin.</span> Plugin code is executed.</span> ## Orphan Content Units and Artifacts <span style="color:red;">As an authenticated user, I can cause an action that cleans up **both** orphaned content units and orphaned artifacts.</span> - 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 \['state', 'id'\]</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. As an authenticated user, I can filter tasks by: \[[3144](https://pulp.plan.io/issues/3144)\] - state (equality, state_in_list) - started_at(started_in_range) - finished_at(finished_in_range) - worker (equality) - parent (equality) ## Status As an unauthenticated user I can view the status of Pulp workers and resource managers. \[done\] 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. ## Workers As an authenticated user, I can filter workers by: \[[3143](https://pulp.plan.io/issues/3143)\] - last_heartbeat (range) - name (substring) - gracefully_stopped (equality) ## 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. \[done\] As a plugin writer, I have documentation that shows how I can add filters to filter content responsibly. As a plugin writer, I have documentation on how to write a filter for my Content that can use the RepositoryVersion manager. - note: This will allow users to filter content by repository version ## Plugin Writer "live APIs" As a plugin writer, I can provide a Live API with arbitrary views and viewsets. As a plugin writer, I have documentation on what URLs I should -not use for my views and viewsets Here are some concrete use cases driving the very Live API use cases above: ~~~ # Concrete user use cases: As an authenticated user, I can use the puppet client to fetch content from Pulp using the Forge API As an authenticated user I can use the docker client to fetch content from Pulp using the Docker v1 API As an authenticated user I can use the docker client to fetch content from Pulp using the Docker v2 API # Concrete plugin writer use cases As a puppet plugin developer, I can provide a viewset which handles the server side of the puppet Forge v3 API As a docker plugin developer, I can provide a viewset which handles the server side of the docker v1 API As a docker plugin developer, I can provide a viewset which handles the server side of the docker v2 API ~~~ ## Plugin Writer Versioned Repositories As a plugin writer writing sync code, I have a reference to the pre-saved repository version object that core created for me - As a plugin writer, I have exclusive access to a repository version while sync is running. As a plugin writer, I know the new RepositoryVersion will automatically have all the content from the previous version. As a plugin writer, I can add and remove content from the repository version I was given. As a plugin writer, I have docs to know when I need to create a new repository version myself. e.g. when performing a complex copy operation like depsolving. As a plugin writer, I have exclusive access to a repository version while my code is running. As a plugin writer, I have docs telling me that a repository version content set is immutable. ## Plugin Writer Publishing As a plugin writer, I am assured that a repository version will be fully constructed and not deleted while publish code is running. ## Plugin Storage As a plugin writer, the plugin API provides an API that returns a fully qualified path to a shared storage location used to store content. \["3182"https://pulp.plan.io/issues/3182\] ## Webserver Deployment As a system administrator, I can deploy all Pulp web applications on one process As a system administrator, I can deploy the Pulp REST API exclusively in one process As a system administrator, I can deploy the Pulp content serving view exclusively in one process As a system administrator, I can deploy all Pulp web applications inside a virtualenv. As a system administrator, I can deploy all Pulp web applications without root permissions. ## 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 an authenticated 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, 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 ## 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 As a user, I can have content efficiently served to me by Apache by Pulp using the X-SEND response headers. \[done\] As a user, I can have content efficiently served to me by Nginx by Pulp using the X-Accel-Redirect response headers. \[done\] As a user, I can have an Ansible role to install Apache which enables Apache integration for Pulp and configures Apache to serve Pulp. \[[2921](https://pulp.plan.io/issues/2921)\] As a user, I can have an Ansible role to install Nginx which enables Nginx integration for Pulp and configures Nginx to serve Pulp. \[[2922](https://pulp.plan.io/issues/2922)\] ## Glossary Add (Content Unit): An operation causing a new repository version to contain a content unit(s) Applicability - A plugin defined term meaning when a package update available in a repository is applicable to a given consumer as determined by the Consumer Profile. 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. Distribution: Where and how the content app serves a Publication. i.e. http vs https and base path component of the URL. A Distribution defines: - the base path of the repository publication (required) - serving via http (default=False) - serving via https (default=True) - relationship w/ a Publisher for auto-distribution (should be allowed to be NULL) - relationship with Publication (should be allowed to be NULL) Exporter: An Exporter exports a Publication out of Pulp. e.g. rsync exporter exports content to a remote server Live API: a viewset endpoint contributed by plugin. For examples see the [associated MVP section](https://pulp.plan.io/projects/pulp/wiki/Pulp_3\_Minimum_Viable_Product#Plugin-Writer-live-APIs) Orphan Artifact: An Artifact that is associated with 0 Content Units and 0 Publications Orphan Content (unit): A content unit that is a member of 0 repository versions Remove (content unit): An operation causing a new repository version to not contain a content unit(s) Repository - A named collection of repository versions. Repository Version - An immutable set of content which is versioned by a sequential number.
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