65 lines
2.4 KiB
Markdown
65 lines
2.4 KiB
Markdown
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# Development Report for Mar 24, 2017
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## Container Level Metrics
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* https://github.com/docker/containerd/pull/646
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We merged a PR to add our first pass of container level metrics to our
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prometheus output in containerd. We still have to review the metric names and
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structure before having something we are all comfortable supporting in the long
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run but we now have comprehensive metrics for all containers running on
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containerd.
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## Distribution
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After hitting a major milestone of getting a proof of concept for end to end
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pull and run, this week the focus was on getting that code in the right place
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and figure out where the implementation gaps are.
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### Image to OCI Spec
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* https://github.com/docker/containerd/pull/660
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We merged support for getting an image config that was pulled off of a registry
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and generating a spec based on the image properties in the `ctr` command. This
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will let you pull images off of a registry and run them based on the config and
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how the image was built.
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Its very simple at the moment but will will be porting over the default spec
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and generation code from Docker soon into a package that can be easily consumed
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by clients of containerd.
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You can test this by running:
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```console
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bash
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sudo dist pull docker.io/library/redis:alpine
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sudo ctr run --id redis -t docker.io/library/redis:alpine
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```
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### Image handlers
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* https://github.com/docker/containerd/pull/638
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We refactored the fetch command into a more generic image handler interface. As
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we look forward to supporting the full oci image spec as well as the Docker
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distribution specifications, we are removing any opinionated code to make
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distribution as generalized and efficient as possible.
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### Image listing now with full image size
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```console
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$ dist images
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REF TYPE DIGEST SIZE
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docker.io/library/redis:latest application/vnd.docker.distribution.manifest.v2+json sha256:1b358a2b0dc2629af3ed75737e2f07e5b3408eabf76a8fa99606ec0c276a93f8 71.0 MiB
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```
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## Snapshot driver improvements
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* https://github.com/docker/containerd/pull/635
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The `overlay` and `btrfs` driver implementations are now fully implemented and
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share an implementation for metadata storage. This new metadata storage package
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allows not only making snapshot drivers easier, but allow us to focus on making
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our existing drivers more resilient and stable once.
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