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Cookbook plugin for the Pulp Project

Project description

This is the pulp_cookbook Plugin for Pulp Project 3.0+. This plugin implements support for Chef cookbooks.

Currently, it allows to import packaged cookbooks into cookbook repositories. When publishing a specific version of a cookbook repository, a universe endpoint will be created to allow tools like berkshelf to download cookbooks and resolve cookbook dependencies.

Not supported (yet):

  • Syncing remote repositories (e.g. Chef Supermarket)

  • Full support of the Supermarket API

  • This plugin is at a very early stage. It has no tests and error cases have not been tested.

All REST API examples below use httpie to perform the requests. The httpie commands below assume that the user executing the commands has a .netrc file in the home directory. The .netrc should have the following configuration:

machine localhost
login admin
password admin

If you configured the admin user with a different password, adjust the configuration accordingly. If you prefer to specify the username and password with each request, please see httpie documentation on how to do that.

This documentation makes use of the jq library to parse the json received from requests, in order to get the unique urls generated when objects are created. To follow this documentation as-is please install the jq library/binary with:

$ sudo dnf install jq

Install pulpcore

Follow the installation instructions provided with pulpcore.

Install pulp_cookbook from source

  1. sudo -u pulp -i

  2. source ~/pulpvenv/bin/activate

  3. git clone https://github.com/pulp/pulp_cookbook.git

  4. cd pulp_cookbook

  5. python setup.py develop

  6. pulp-manager makemigrations pulp_cookbook

  7. pulp-manager migrate pulp_cookbook

  8. django-admin runserver

  9. sudo systemctl restart pulp_resource_manager

  10. sudo systemctl restart pulp_worker@1

  11. sudo systemctl restart pulp_worker@2

Create a repository foo

$ http POST http://localhost:8000/pulp/api/v3/repositories/ name=foo

{
    "_href": "http://localhost:8000/pulp/api/v3/repositories/012ddb4b-2a5c-438b-8a2c-8e860fc7ff70/",
    "_latest_version_href": null,
    "_versions_href": "http://localhost:8000/pulp/api/v3/repositories/012ddb4b-2a5c-438b-8a2c-8e860fc7ff70/versions/",
    "created": "2018-05-10T15:09:25.598418Z",
    "description": "",
    "id": "012ddb4b-2a5c-438b-8a2c-8e860fc7ff70",
    "name": "foo",
    "notes": {}
}

$ export REPO_HREF=$(http :8000/pulp/api/v3/repositories/ | jq -r '.results[] | select(.name == "foo") | ._href')

Upload cookbooks to Pulp

As a simple example, let’s download two cookbooks from the Chef Supermarket and upload them into our repository.

Download ‘ubuntu’ and ‘apt’ cookbooks (the ‘ubuntu’ cookbooks depends on the ‘apt’ cookbook):

$ curl -Lo ubuntu-2.0.1.tgz https://supermarket.chef.io:443/api/v1/cookbooks/ubuntu/versions/2.0.1/download $ curl -Lo apt-7.0.0.tgz https://supermarket.chef.io:443/api/v1/cookbooks/apt/versions/7.0.0/download

Create artifacts by uploading the cookbooks to Pulp. First, the artifact for the “ubuntu” cookbook:

ubuntu_resp=$(http --form POST http://localhost:8000/pulp/api/v3/artifacts/ file@ubuntu-2.0.1.tgz)
echo "$ubuntu_resp" | jq .
export UBUNTU_ARTIFACT_HREF=$(echo "$ubuntu_resp" | jq -r '._href')
{
"id": "df361637-d606-41db-b7dd-d8e773e8c0a2",
"_href": "http://localhost:8000/pulp/api/v3/artifacts/df361637-d606-41db-b7dd-d8e773e8c0a2/",
"created": "2018-05-10T15:09:28.041601Z",
"file": "/var/lib/pulp/artifact/32/a7d3de4ff8f769eeab4ffc982eb8df845d91d49c01548d6f993b10e52b6f69",
"size": 3712,
...
}

And then, the “apt” cookbook:

apt_resp=$(http --form POST http://localhost:8000/pulp/api/v3/artifacts/ file@apt-7.0.0.tgz)
echo "$apt_resp" | jq .
export APT_ARTIFACT_HREF=$(echo "$apt_resp" | jq -r '._href')

Create cookbook content from an Artifact

Create a content unit for ubuntu 2.0.1:

$ http POST http://localhost:8000/pulp/api/v3/content/cookbook/cookbooks/ name="ubuntu" artifact="$UBUNTU_ARTIFACT_HREF"

{
    "_href": "http://localhost:8000/pulp/api/v3/content/cookbook/cookbooks/9c20888c-6a34-40da-88f7-428c6f04f273/",
    "artifact": "http://localhost:8000/pulp/api/v3/artifacts/df361637-d606-41db-b7dd-d8e773e8c0a2/",
    "created": "2018-05-10T15:09:28.575190Z",
    "dependencies": {
        "apt": ">= 0.0.0"
    },
    "id": "9c20888c-6a34-40da-88f7-428c6f04f273",
    "name": "ubuntu",
    "notes": {},
    "type": "cookbook",
    "version": "2.0.1"
}

$ export UBUNTU_CONTENT_HREF=$(http :8000/pulp/api/v3/content/cookbook/cookbooks/?name=ubuntu | jq -r '.results[0]._href')

Create a content unit for apt 7.0.0:

$ http POST http://localhost:8000/pulp/api/v3/content/cookbook/cookbooks/ name="apt" artifact="$APT_ARTIFACT_HREF"

{
    "_href": "http://localhost:8000/pulp/api/v3/content/cookbook/cookbooks/b3f28b18-9279-446f-8ddd-50a8e9f5fb1a/",
    "artifact": "http://localhost:8000/pulp/api/v3/artifacts/2ac8857f-93e0-48d8-9046-2ea0d53b9d30/",
    "created": "2018-05-10T15:09:31.563556Z",
    "dependencies": {},
    "id": "b3f28b18-9279-446f-8ddd-50a8e9f5fb1a",
    "name": "apt",
    "notes": {},
    "type": "cookbook",
    "version": "7.0.0"
}

$ export APT_CONTENT_HREF=$(http :8000/pulp/api/v3/content/cookbook/cookbooks/?name=apt | jq -r '.results[0]._href')

Add content to repository foo

$ http POST $REPO_HREF'versions/' add_content_units:="[\"$UBUNTU_CONTENT_HREF\",\"$APT_CONTENT_HREF\"]"

Create a cookbook Publisher

$ http POST http://localhost:8000/pulp/api/v3/publishers/cookbook/ name=publisher

{
    "_href": "http://localhost:8000/pulp/api/v3/publishers/cookbook/d51f31df-5758-47ba-95e2-016eae4bb611/",
    "created": "2018-05-10T15:09:33.191839Z",
    "distributions": [],
    "id": "d51f31df-5758-47ba-95e2-016eae4bb611",
    "last_published": null,
    "last_updated": "2018-05-10T15:09:33.191857Z",
    "name": "publisher",
    "type": "cookbook"
}

$ export PUBLISHER_HREF=$(http :8000/pulp/api/v3/publishers/cookbook/ | jq -r '.results[] | select(.name == "publisher") | ._href')

Use the publisher Publisher to create a Publication

$ http POST $PUBLISHER_HREF'publish/' repository=$REPO_HREF

{
    "_href": "http://localhost:8000/pulp/api/v3/tasks/66b80927-93a0-465d-a7fc-2d2922bca77f/",
    "task_id": "66b80927-93a0-465d-a7fc-2d2922bca77f"
}

$ export PUBLICATION_HREF=$(http :8000/pulp/api/v3/publications/ | jq -r --arg PUBLISHER_HREF "$PUBLISHER_HREF" '.results[] | select(.publisher==$PUBLISHER_HREF) | ._href')

Create a Distribution at ‘foo’ for the Publication

$ http POST http://localhost:8000/pulp/api/v3/distributions/ name='baz' base_path='foo' publication=$PUBLICATION_HREF

{
    "_href": "http://localhost:8000/pulp/api/v3/distributions/92acec58-e579-4647-94e2-4801f5b71595/",
    "base_path": "foo",
    "base_url": "localhost:8000/pulp/content/foo",
    "created": "2018-05-10T15:09:35.390266Z",
    "id": "92acec58-e579-4647-94e2-4801f5b71595",
    "name": "baz",
    "publication": "http://localhost:8000/pulp/api/v3/publications/bf30ed42-719f-42ef-bd87-a8557d57584c/",
    "publisher": null,
    "repository": null
}

You can have a look at the published “universe” metadata now:

$ http http://localhost:8000/pulp_cookbook/market/foo/universe

{
    "apt": {
        "7.0.0": {
            "dependencies": {},
            "download_url": "http://localhost:8000/pulp/content/foo/cookbook_files/apt/7_0_0/apt-7.0.0.tar.gz",
            "location_path": "http://localhost:8000/pulp/content/foo/cookbook_files/apt/7_0_0/apt-7.0.0.tar.gz",
            "location_type": "uri"
        }
    },
    "ubuntu": {
        "2.0.1": {
            "dependencies": {
                "apt": ">= 0.0.0"
            },
            "download_url": "http://localhost:8000/pulp/content/foo/cookbook_files/ubuntu/2_0_1/ubuntu-2.0.1.tar.gz",
            "location_path": "http://localhost:8000/pulp/content/foo/cookbook_files/ubuntu/2_0_1/ubuntu-2.0.1.tar.gz",
            "location_type": "uri"
        }
    }
}

Use Berkshelf with the published repo

Create a Berksfile with the following content:

source 'http://localhost:8000/pulp_cookbook/market/foo'

cookbook 'ubuntu'

$ berks install

Resolving cookbook dependencies...
Fetching cookbook index from http://localhost:8000/pulp_cookbook/market/foo...
Installing apt (7.0.0) from http://localhost:8000/pulp_cookbook/market/foo ([uri] http://localhost:8000/pulp/content/foo/cookbook_files/apt/7_0_0/apt-7.0.0.tar.gz)
Installing ubuntu (2.0.1) from http://localhost:8000/pulp_cookbook/market/foo ([uri] http://localhost:8000/pulp/content/foo/cookbook_files/ubuntu/2_0_1/ubuntu-2.0.1.tar.gz)

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