projects: add ORAS proposal

Signed-off-by: Josh Dolitsky <[email protected]>

README.md

@@ -26,6 +26,7 @@ https://groups.google.com/a/opencontainers.org/forum/#!forum/tob (tob@opencontai
 * [Image Format Spec](proposals/image-format)
 * [SELinux](proposals/selinux.md)
 * [Tools](proposals/tools.md)
+* [ORAS](proposals/oras.md)
 
 ## Voting
 

proposals/oras.md

@@ -0,0 +1,195 @@
+# OCI ORAS Project Proposal #
+
+## Abstract ##
+
+The [ORAS project][oras-project] is a CLI that can publish arbitrary content to an [OCI Spec Compliant](https://github.com/opencontainers/oci-conformance) registry, with special features for setting mediatypes on manifest configs and on content. 
+
+In order to provide OCI end users a method to publish and retrieve any type of content to/from an OCI registry, as well as a reference implementation for the artifacts project, ORAS should be moved under the opencontainers GitHub org.
+
+[oras-project]: https://github.com/deislabs/oras
+
+### ORAS Details ###
+
+ORAS is a CLI that can publish arbitrary content to an OCI registry, with special features for setting mediatypes on manifest configs and on content.
+
+Note: the manifest mediatype itself is always `application/vnd.oci.image.manifest.v1+json`.
+
+Example - uploading rockets, a brand new type of package:
+
+```
+# Create a thing
+printf '🚀' > rocket.txt
+
+# Create a manifest config
+printf '{"RocketVersion":"v0.1.0"}' > rocket-config.json
+
+# Upload your thing with a custom mediatype
+oras push localhost:5000/mystuff/myrocket:v0.1.0 rocket.txt:text/plain \
+  --manifest-config rocket-config.json:application/vnd.acme.rocket.config.v1+json
+ ```
+
+See manifest created:
+
+```
+$ curl -s -H 'Accept: application/vnd.oci.image.manifest.v1+json' \
+    http://localhost:5000/v2/mystuff/myrocket/manifests/v0.1.0 | jq
+{
+  "schemaVersion": 2,
+  "config": {
+    "mediaType": "application/vnd.acme.rocket.config.v1+json",
+    "digest": "sha256:310175f34d2d4d5cba3418be06ddd1ef948147d729516d78318ec7f5c2d83d49",
+    "size": 26
+  },
+  "layers": [
+    {
+      "mediaType": "text/plain",
+      "digest": "sha256:ebbc0b2870eb323f2b6cffa5c493ceef81ae7eb36afc73d4e0367301631daec5",
+      "size": 4,
+      "annotations": {
+        "org.opencontainers.image.title": "rocket.txt"
+      }
+    }
+  ]
+}
+```
+
+Get that thing:
+
+```
+$ curl -s http://localhost:5000/v2/mystuff/myrocket/blobs/sha256:ebbc0b2870eb323f2b6cffa5c493ceef81ae7eb36afc73d4e0367301631daec5
+🚀
+```
+
+#### Additional Usage ####
+
+ORAS is built primarily on top of Go packages provided by [containerd][containerd-project], but it also imports packages from the [docker/cli][dockercli-project], which enables "docker-style" auth login:
+
+```
+oras login -u username -p password localhost:5000 -c rocket-creds.json
+```
+
+There are also public Go packages available to build on top of ORAS. The following is the equivalent of the rocket example with the CLI above, but in Go:
+
+```go
+package main
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/containerd/containerd/remotes/docker"
+	"github.com/deislabs/oras/pkg/content"
+	"github.com/deislabs/oras/pkg/oras"
+	ocispec "github.com/opencontainers/image-spec/specs-go/v1"
+)
+
+func main() {
+	ctx := context.Background()
+	resolver := docker.NewResolver(docker.ResolverOptions{})
+	store := content.NewMemoryStore()
+
+	registryRootURL := "localhost:5000"
+	registryNamespace := "mystuff/myrocket"
+
+	rocketVersion := "v0.1.0"
+	rocketFileName := "rocket.txt"
+	rocketMediaType := "text/plain"
+	rocketContent := []byte("🚀")
+	rocketDescriptor := store.Add(rocketFileName, rocketMediaType, rocketContent)
+
+	rocketConfigMediaType := "application/vnd.acme.rocket.config.v1+json"
+	rocketConfigContent := []byte(fmt.Sprintf("{\"RocketVersion\":\"%s\"}", rocketVersion))
+	rocketConfigDescriptor := store.Add("", rocketConfigMediaType, rocketConfigContent)
+
+	ref := fmt.Sprintf("%s/%s:%s", registryRootURL, registryNamespace, rocketVersion)
+	_, err := oras.Push(ctx, resolver, ref, store, []ocispec.Descriptor{rocketDescriptor},
+		oras.WithConfig(rocketConfigDescriptor))
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println("Pushed to", ref)
+	fmt.Printf("\nTry:\n\ncurl -s -H 'Accept: application/vnd.oci.image.manifest.v1+json' \\\n" +
+		"    %s/v2/%s/manifests/%s | jq\n", registryRootURL, registryNamespace, rocketVersion)
+}
+```
+
+You can see all features in the project [README][oras-readme].
+
+[containerd-project]: https://github.com/containerd/containerd
+[dockercli-project]: https://github.com/docker/cli
+[oras-readme]: https://github.com/deislabs/oras/blob/master/README.md
+
+#### Adoption ####
+
+The following projects are already successfully using ORAS to work with custom artifacts:
+
+- [Helm][helm-usage]
+- [Conftest][conftest-usage]
+- [Singularity][singularity-usage]
+
+[helm-usage]: https://github.com/helm/helm/search?q=oras
+[conftest-usage]: https://github.com/instrumenta/conftest/search?q=oras
+[singularity-usage]: https://github.com/sylabs/singularity/search?q=oras
+
+## Proposal ##
+Change the ownership of the existing ORAS project from deislabs:
+
+  https://github.com/deislabs/oras
+
+And move it inside the `opencontainers` organization:
+
+  https://github.com/opencontainers/oras
+
+The import paths will correspondingly be "github.com/opencontainers/oras" (oras does have some Go API users, but since the project will be renamed -- and GitHub will add a redirect -- there will be no significant downstream impact of the change).
+
+### Initial Maintainers ###
+Initial maintainers of the ORAS project would be:
+
+* Josh Dolitsky <[email protected]> (@jdolitsky)
+* Shiwei Zhang <[email protected]> (@shizhMSFT)
+* Sajay Antony <[email protected]> (@sajayantony)
+* Steve Lasker <[email protected]> (@stevelasker)
+* Jimmy Zelinskie <[email protected]> (@jzelinskie)
+
+### Code of Conduct ###
+This project would incorporate (by reference) the OCI [Code of Conduct][code-of-conduct].
+
+[code-of-conduct]: https://github.com/opencontainers/org/blob/master/CODE_OF_CONDUCT.md
+
+### Governance and Releases ###
+This project would incorporate the Governance and Releases processes from the [OCI project template][oci-project-template].
+
+It should be noted that since ORAS is not a specification, it is not bound by the ordinary quorum and voting rules for specification release.
+As such, new versions will be released as regularly as needed without the need for a quorum vote.
+
+Pull requests will require two (2) reviews (signified by "LGTM") from project maintainers.
+Maintainers are not allowed to review a pull request which they authored.
+
+[oci-project-template]: https://github.com/opencontainers/project-template
+
+### Project Communications ###
+The proposed project would continue to use existing channels in use by the OCI developer community for communication including:
+
+ * GitHub for issues and pull requests.
+ * The [`[email protected]`][oci-ml] email list.
+ * The weekly OCI developer community conference call.
+ * The `#opencontainers` IRC channel on Freenode.
+ * The [OCI Slack workspace][oci-slack].
+ * The [OCI Matrix Room][oci-matrix].
+
+[oci-ml]: mailto:[email protected]
+[oci-slack]: https://opencontainers.slack.com/
+[oci-matrix]: https://matrix.to/#/#opencontainers:matrix.org
+
+## Frequently Asked Questions (FAQ)
+*Q: Does this change the OCI Charter or Scope Table?*
+A: Yes, this will add an additional row to the [OCI Scope Table][oci-scope-table], which does not currently include any mention of generic OCI image tooling.
+This proposal does not intend to amend the [OCI Charter][oci-charter].
+
+[oci-scope-table]: https://www.opencontainers.org/about/oci-scope-table
+[oci-charter]: https://www.opencontainers.org/about/governance
+
+*Q: Who are the other target users of ORAS?*
+A: Users seeking a common way to store different types of content (not just container runtime images),
+using the OCI Distribution Spec as the baseline API.