Pulp

# Pulp RPM Roadmap

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This is a living document that is moving towards a long term plan to develop RPM plugin for Pulp 3.0 and beyond.

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## Supported Content Types

### MVP

  - RPM \[#3199\]

  - SRPM \[#3199\]

  - Erratum \[#3201\]

### Post-MVP

  - DRPM

  - Distribution (kickstart tree)

  - Comps.xml content types (package group, environment, category, langpacks)

  - Yum repo metadata file

  - Modules

## Pulp RPM Plugin Use Cases

### MVP

##### Sync

  - Basic Sync

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  - As an authenticated user, I can sync a remote yum/dnf repository

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  - RPM \[#3202\]

  - SRPM \[#3202\]

  - Erratum \[#3202\]

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  - Sync types

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  - As a user, I can exactly mirror the content of a remote repository. \[provided by pulpcore\]

  - As a user, I can mirror the content of a remote repository with an additive behavior, so content is never removed locally. \[provided by pulpcore\]

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  - Download Behaviors

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  - As a user, my sync task does not fail just because one download failed. \[provided by pulpcore?\]

  - As a user, I can limit the number of concurrent downloads

  - As a user, I can sync content on-demand by setting a repository's download policy

##### Publish

  - As an authenticated user, I can publish a yum/dnf repository.

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  - RPM \[#3204\]

  - SRPM \[#3204\]

  - Erratum \[#3204\]

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  - As a user, I can specify relative path at which a repository will be served. \[provided by pulpcore\]

  - As a user, I can configure if a repository will be served over an SSL or a non-SSL connection. \[provided by pulpcore\] 

  - As user, I can sync from a yum/dnf repo published by Pulp. \[should be taken into account for any publish story\]

### Post-MVP

##### Sync

  - Basic Sync

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  - As an authenticated user, I can sync a remote yum/dnf repository

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  - DRPM

  - Distribution (kickstart tree)

  - Comps.xml content types (package group, environment, category, langpacks)

  - Yum repo metadata file

  - Modules

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  - Sync behaviors

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  - As a user, I can mirror only the most recent X versions that correspond to a particular rpm name.

  - As a user, I can force a full re-sync of a remote repository

  - As a user, I can sync from a mirrorlist feed.

  - As a user, I can sync from a metalink URL to avoid a replay attack from a malicious mirror. \[provided by pulpcore [3415](https://pulp.plan.io/issues/3415)\]

  - As a user, I can sync only signed packages (RPM/DRPM/SRPM)

  - As a user, I can have sync skip one or more content types, e.g. drpm, errata, etc

  - As a user, I can sync yum/dnf repository when only primary.xml is provided in repomd.xml

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  - Performance features

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  - As a user, my sync will skip most of its work if the repomd.xml revision number has not changed is equal to or older (lower) than the previously successfully synced one.

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  - As a user, my sync is not skipped if it's a first sync

  - As a user, my sync is not skipped if the importer configuration has changed since the last sync

  - As a user, my sync is not skipped if any content has been removed from the repository since the last sync

  - As a user, downloading of content starts quickly

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  - Sync types

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  - As a user, I can sync a kickstart tree from the same feed as other rpm/yum/dnf content.

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  - Download Behaviors

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  - As a user, I can limit the maximum speed of downloading in bytes / sec

  - As a user, I can specify the number of retries to be done before failing a given download

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  - Checksum Features

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  - As a user, I can sync a repository and have the files' checksums validated to ensure that no content is corrupt.

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  - GPG Signature Features

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  - As a user, I can verify that repo metadata has a valid signature. (would be a new feature)

  - As a user, I can specify a set of trusted GPG keys. Any packages that are not signed with one of these keys is not synced.

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  - Mirror List Support

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  - As a plugin writer I can configure mirror lists and rotate between the mirrors

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  - round robin support

  - nearest mirror support (GeoIP or ping times)

##### Publish

  - As an authenticated user, I can publish a yum/dnf repository.

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  - DRPM

  - Distribution (kickstart tree)

  - Comps.xml content types (package group, environment, category, langpacks)

  - Yum repo metadata file

  - Modules

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  - As a user, I can publish a repository incrementally (re-use the pre-existing metadata and only add additional units) \[not relevant in Pulp3 world?\]

  - As a user, I can force a full republish of a repository.

  - As a user, my publish will skip most of its work if no changes to a repository were made since last publish.

  - As a user, I can configure which checksum algorithm to use when creating metadata.

  - As a user, I can configure which checksum algorithm to use when creating updateinfo.xml.

  - Special publish for modules \[TBD\]

##### Export

  - As a user, I can export a repository or group of repositories to an ISO file (ISO 9660)

  - As a user, I can export a repository or group of repositories to a DVD / Blueray file (UDF aka. ISO/IEC 13346)

  - As a user, I can export a repository to a specified directory

  - As a user, I can export a repositories content that is associated or updated (errata) since a specific datetime( aka incremental?)

  - As a user, I can export RPM packages and errata as a set of JSON files

##### Upload

  - As an authenticated user, I can upload yum/dnf content types (not including Distribution)

  - As an authenticated user, I can upload a comps.xml file and have it parsed into its constituent content units (requires knowledge of the destination repo at creation time)

##### Copy

  - As a user, I can copy a content of a specific type from one repository to another repository

  - As a user, I can copy RPM packages and all their dependencies from one repository to another repository

  - As a user, I can copy an Erratum and all the RPM packages it references from one repository to another repository

  - As a user, I can copy an Erratum and all the RPM packages it references and all the RPM dependencies from one repository to another repository

  - Some content types create a new content unit in the destination repo instead of just copying, e.g. yum_repo_metadata_file

  - Special copy for modules \[TBD\]

#### Not much yet discussed use cases

##### Content Protection

  - As an authenticated user, I can use key based authentication to allow/disallow access to content served by the content app

  - As an authenticated user, I can use user/password based authentication to allow/disallow access to content served by the content app.

##### Applicability

  - As an authenticated user, I can trigger an applicability for a consumer.

  - As an authenticated user, I can trigger an applicability for a repository.

##### Rsync Distributor

  - As a user i can distribute rpm content using a remote server.

## Pulp 2 features not present in Pulp 3

  - "gpgkey" importer setting - only used by pulp-agent.

  - "generate_sqlite" - sqlite files are only used by yum as an optimization. DNF does not use them and has no plans to. Performance gains marginal.

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  - they are also used by the "repoview" feature which we will also leave out of 3.0. Making browseable publications will hopefully be solved in the core.

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  - As a user, I can have publish skip one or more content types, e.g. drpm, errata, etc

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  - We can't think of a use case for this. Maybe export of only RPMs and Errata, see export use case.