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Manifest Image ((INSTALL))

This document outlines the format of the V2 image manifest, schema version 2.The original (and provisional) image manifest for V2 (schema 1), was introducedin the Docker daemon in the v1.3.0releaseand is specified in the schema 1 manifest definition

Manifest image


The MIME type of the referenced object. This will generally be application/vnd.docker.distribution.manifest.v2+json, but it could also be application/vnd.docker.distribution.manifest.v1+json if the manifest list references a legacy schema-1 manifest.

The platform object describes the platform which the image in the manifest runs on. A full list of valid operating system and architecture values are listed in the Go language documentation for $GOOS and $GOARCH

The config field references a configuration object for a container, by digest. This configuration item is a JSON blob that the runtime uses to set up the container. This new schema uses a tweaked version of this configuration to allow image content-addressability on the daemon side.

The MIME type of the referenced object. This should generally be application/vnd.docker.image.rootfs.diff.tar.gzip. Layers of type application/vnd.docker.image.rootfs.foreign.diff.tar.gzip may be pulled from a remote location but they should never be pushed.

When pushing images, clients which support the new manifest format should firstconstruct a manifest in the new format. If uploading this manifest fails,presumably because the registry only supports the old format, the client mayfall back to uploading a manifest in the old format.

When pulling images, clients indicate support for this new version of themanifest format by sending theapplication/vnd.docker.distribution.manifest.v2+json andapplication/vnd.docker.distribution.manifest.list.v2+json media types in anAccept header when making a request to the manifests endpoint. Updatedclients should check the Content-Type header to see whether the manifestreturned from the endpoint is in the old format, or is an image manifest ormanifest list in the new format.

If the manifest being requested uses the new format, and the appropriate mediatype is not present in an Accept header, the registry will assume that theclient cannot handle the manifest as-is, and rewrite it on the fly into the oldformat. If the object that would otherwise be returned is a manifest list, theregistry will look up the appropriate manifest for the amd64 platform andlinux OS, rewrite that manifest into the old format if necessary, and returnthe result to the client. If no suitable manifest is found in the manifestlist, the registry will return a 404 error.

A single manifest is information about an image, such as layers, size, and digest.The docker manifest command also gives users additional information such as the osand architecture an image was built for.

A manifest list is a list of image layers that is created by specifying one ormore (ideally more than one) image names. It can then be used in the same way asan image name in docker pull and docker run commands, for example.

The manifest command interacts solely with a registry. Because of this,it has no way to query the engine for the list of allowed insecure registries.To allow the CLI to interact with an insecure registry, some docker manifestcommands have an --insecure flag. For each transaction, such as a create,which queries a registry, the --insecure flag must be specified. This flagtells the CLI that this registry call may ignore security concerns like missingor self-signed certificates. Likewise, on a manifest push to an insecureregistry, the --insecure flag must be specified. If this is not used with aninsecure registry, the manifest command fails to find a registry that meets thedefault requirements.

Just as with other docker commands that take image names, you can refer to an image with orwithout a tag, or by digest (e.g. hello-world@sha256:f3b3b28a45160805bb16542c9531888519430e9e6d6ffc09d72261b0d26ff74f).

To create a manifest list, you first create the manifest list locally byspecifying the constituent images you would like to have included in yourmanifest list. Keep in mind that this is pushed to a registry, so if you want topush to a registry other than the docker registry, you need to create yourmanifest list with the registry name or IP and port.This is similar to tagging an image and pushing it to a foreign registry.

The --insecure flag is not required to annotate a manifest list,since annotations are to a locally-stored copy of a manifest list. You may alsoskip the --insecure flag if you are performing a docker manifest inspecton a locally-stored manifest list. Be sure to keep in mind that locally-storedmanifest lists are never used by the engine on a docker pull.

Above I quoted a passage from Plato that Mayor mentions, but not really discusses. In context, Plato's Athenian stranger is primarily interested in discussing the origin of political communities from (what we would call) a state of nature (discussed here). The Athenian stranger admits [677a] that what I'll call the manifest image of people involves a regular destruction of the "world of men" by "floods, plagues, and many other catastrophic natural causes. Strikingly, this involves a population reduction of people. [In the Laws, The Athenian does not mention the manifest conception of the gods and gigantomachy. But Plato is aware of the genre, because ironically, in the Sophist a Stranger does introduce agigantomachy (in order to refer to philosophical dispute about non-being.)]

The more scientific/philosophic conception accepts the manifest image to some degree, but adds level of detail to it. In particular, I read the Stranger as embracing an account in which the Earth has experienced frequent catastrophic events that have wiped populations and (memory) their way of living/technology/culture ("all implements were lost, and that everything in the way of important arts or inventions that they may have had...perished") for thousands of years. In addition, while mankind held on, many species were destroyed "most...animals were destroyed"--admittedly the text is ambiguous between there was demographic decline of all existing species, but, as it happens, none of the species were destroyed or most species were destroyed. But it seems pretty clear that Plato here implies that in a deluge land species that were unable to survive on the hills would have been wiped out. (If 'species' is thought anachronistic for Plato, you can insert 'groups'.) So, I would argue that Plato embraces a cyclical conception of history, with not infrequent catastrophic events forcing the clock (of population and civilization growth) to be restarted. (I think this also fits the evidence from other works by him.)

In the quote, the narrator explicitly calls attention to (a point much emphasized by Socrates in Plato's Phaedrus and, if it is authentic, the seventh letter) the fact that a written text must accommodate itself somehow to a diversity of souls (who may be unknown, but anticipated by the author) or (if you prefer less metaphysics) to human heterogeneity in aesthetic and other engaged responses.+ The narrator doesn't merely explicitly admit she (why not!) may not be able to satisfy all her readers, but she also invites, no challenges ("rise to the occasion") her readers to use their own imagination to constitute a version of Omelas that will satisfy their image of a happy place. These are souls that assume a happy place must have technology (trained on, say, Bacon's New Atlantis) and lots of freely available sex (trained on, say, Brave New World). Of course, the narrator isn't just inviting readers to develop their own version of Omelas with accidental properties inessential to the true nature of Omelas, while simultaneously revealing that these properties may be essential to the kind of readers they are. The narrator is also calling attention to the fact that she is aware that she may disappoint some of our expectations; may, in fact, disapprove of our expectations (e.g., we want to be able to blame organized religion for the cruelty at the heart of Omelias; we want a narrative of technological progress or out of control desire and so blame these, etc.).

Nagel's generous review introduces two key conceptual innovations in Dennett's thought early in the review, first that there is "competence without comprehension" and, second, that there are "free-floating reasons, grounded in the pressures of natural selection that" can cause "behaviors and processes to become part of our repertoire." But while Nagel nicely draws out the significance of this for Dennett's familiar view on consciousness (although he misses that for Dennett the the scientific image is also of real patterns (see 222)), Nagel misses the wider implications of these two innovations: that they pave the way for a version of functional explanation in social science.

I have quoted Strawson's defense of the role of "imagining ways in which, without things other than ourselves being different from what they are, we might view them through the medium of a different conceptual apparatus." Now the first thing to note is that this is presented as an extremely modest enterprise. There is no sense that an alternative conception of reality might be a guide to action or generate a vision of reality worth attaining (see philosophical prophecy). Given that Strawson makes disparaging remarks ("grandiose plan of logical atomism") of Carnapian "planners," the conservative implications are deliberate here. Strawson's version of descriptive analysis and descriptive metaphysics, self-consciously leaves things alone (recall yesterday's post). No doubt there will be howls of derision from Oxford -- if they pretended to care about my digressions -- but this is (further) evidence of the ignoble effects of the cold war on philosophy's self-image.

To import image-level labels (images labeled with scenes, concepts, or objects that don't require localization information), you add SageMaker Ground Truth Classification Job Output format JSON lines to a manifest file. A manifest file is made of one or more JSON lines, one for each image that you want to import. 041b061a72


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