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        "author": "Antoine Legrand",
        "author_email": "2t.antoine@gmail.com",
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        "classifiers": [
            "Development Status :: 2 - Pre-Alpha",
            "Intended Audience :: Developers",
            "Natural Language :: English",
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        "description": "# cnr-server\n\n[![build status](https://gitlab.com/cn-app-registry/cnr-server/badges/master/build.svg)](https://gitlab.com/cn-app-registry/cnr-server/commits/master)\n[![Coverage Status](https://coveralls.io/repos/github/cn-app-registry/cnr-server/badge.svg)](https://coveralls.io/github/cn-app-registry/cnr-server)\n[![Swagger API Reference](https://img.shields.io/badge/swagger-docs-blue.svg)](Documentation/cnr-api-swagger.yaml)\n\nCNR implements a registry for storing Kubernetes application manifests that attempts to reuse as much knowledge from the rest of the Linux container ecosystem as possible.\n\nDifferentiating features include:\n\n- A protocol and data model that can more easily be implemented by pre-existing container registries\n  - This includes a common API for uploading, downloading, and searching for applications\n- The reuse and integration with many elements from [OCI](https://www.opencontainers.org)\n  - Content addressable manifest scheme for security, signing, and non-trusted mirroring\n  - Reuse of common data structures such as Descriptors\n  - Unification of Manifest Lists as the means of content negoitation for both Images and Applications\n\n## Getting started\n\n1. git clone https://github.com/cn-app-registry/cnr-server.git && cd cnr-server\n2. pip install -e . && pip install gunicorn\n3. Run the cnr-server on port 5000 `gunicorn cnr.api.wsgi:app -b :5000`\n   or \"./run-server\"\n4. See the [curl-based examples](Documentation/test.sh)\n\n## Architecture at a glance\n\nThere are two top-level objects:\n\n- Package: metadata describing an application\n- Blob: a gzipped tarball of the package encoded in base64\n\nPackages are primarily indexed by 3 notable fields:\n\n- package-name: it follows container-image format: `namespace/name`.\n- release: it's the version of the package, immutable it can be viewed as an alias to a digest\n- mediaType: the format of the package formats (eg: docker-compose, dab, helm, kpm)\n\nData storage is specified by the `STORAGE` environment variable. The following are supported:\n\n- `filesystem` (default)\n- [`etcd`](https://github.com/coreos/etcd)\n- [`redis`](https://github.com/antirez/redis)\n\n## Demo using using [Helm](https://github.com/kubernetes/helm) charts\n\n### Publish a chart\n\nCreate and encode the chart tarball\n\n```\n~/charts/elasticsearch $\ntar czvf ../elastichart.tar.gz  Chart.yaml manifests README.md\ncat ../elastichart.tar.gz | base64 -w 0\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\n```\n\nPOST the chart to CNR\n\n```\ncurl -XPOST http://localhost:5000/api/v1/packages/myname/elasticsearch -d '\n{\n  \"blob\": \"H4sIAP3mAFgAA....\",\n  \"release\": \"2.2.1\",\n  \"media_type\": \"helm\"\n}'\n```\n\n### Pull the chart\n\nFind the digest from the package-name/release/media-type\n\n```\ncurl -XGET http://localhost:5000/api/v1/packages/myname/elasticsearch/2.2.1/helm\n{\n  \"channels\": [],\n  \"content\": {\n    \"digest\": \"72ed15c9a65961ecd034cca098ec18eb99002cd402824aae8a674a8ae41bd0ef\",\n    \"mediaType\": \"application/vnd.cnr.package.helm.v1.tar+gzip\",\n    \"size\": 583,\n    \"urls\": []\n  },\n  \"created_at\": \"2016-11-16T17:13:07.806579\",\n  \"mediaType\": \"application/vnd.cnr.package-manifest.helm.v1.json\",\n  \"package\": \"myname/elasticsearch\",\n  \"release\": \"2.2.1\"\n}\n\n```\n\nFetch the blob\n\n```\ncurl -XGET \\\nhttp://localhost:5000/api/v1/packages/myname/elasticsearch/blobs/sha256/72ed15c9a65961ecd034cca098ec18eb99002cd402824aae8a674a8ae41bd0ef \\\n-o elasticsearch-chart.tar.gz\n```\n",
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