`latest` tag of `dotnet/sdk` image is stuck at 8.0.101, missing from `manifest.json`

[aPinat]

Describe the Bug

The latest tag of mcr.microsoft.com/dotnet/sdk points to an image with version 8.0.101 instead of the actual latest stable of (at time of writing) 8.0.203, just like the 8.0 tag points to.

Steps to Reproduce

Pulling mcr.microsoft.com/dotnet/sdk:latest or checking the manifest at https://mcr.microsoft.com/v2/dotnet/sdk/manifests/latest results in the image with SDK version 8.0.101 as in https://mcr.microsoft.com/v2/dotnet/sdk/manifests/8.0.101.

https://mcr.microsoft.com/v2/dotnet/sdk/manifests/8.0 points to the same image as https://mcr.microsoft.com/v2/dotnet/sdk/manifests/8.0.203.

Other Information

This also messes with dependabot trying to find the latest stable version:

updater | 2024/03/27 18:51:05 INFO <job_806298635> Checking if dotnet/sdk 8.0.101 needs updating
  proxy | 2024/03/27 18:51:05 [020] GET https://mcr.microsoft.com:443/v2/dotnet/sdk/tags/list
  proxy | 2024/03/27 18:51:05 [020] 200 https://mcr.microsoft.com:443/v2/dotnet/sdk/tags/list
  proxy | 2024/03/27 18:51:06 [022] HEAD https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/latest
  proxy | 2024/03/27 18:51:06 [022] 200 https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/latest
  proxy | 2024/03/27 18:51:06 [024] HEAD https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.203
  proxy | 2024/03/27 18:51:06 [024] 200 https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.203
  proxy | 2024/03/27 18:51:06 [026] HEAD https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.202
  proxy | 2024/03/27 18:51:06 [026] 200 https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.202
  proxy | 2024/03/27 18:51:06 [028] HEAD https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.201
  proxy | 2024/03/27 18:51:06 [028] 200 https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.201
  proxy | 2024/03/27 18:51:06 [030] HEAD https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.200
  proxy | 2024/03/27 18:51:06 [030] 200 https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.200
  proxy | 2024/03/27 18:51:06 [032] HEAD https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.101
  proxy | 2024/03/27 18:51:06 [032] 200 https://mcr.microsoft.com:443/v2/dotnet/sdk/manifests/8.0.101
updater | 2024/03/27 18:51:07 INFO <job_806298635> The `latest` tag points to the same image as the `8.0.101` image, so dependabot is treating `8.0.200` as a pre-release. The `latest` tag needs to point to `8.0.200` for Dependabot to consider it.
updater | 2024/03/27 18:51:07 INFO <job_806298635> The `latest` tag points to the same image as the `8.0.101` image, so dependabot is treating `8.0.201` as a pre-release. The `latest` tag needs to point to `8.0.201` for Dependabot to consider it.
updater | 2024/03/27 18:51:08 INFO <job_806298635> The `latest` tag points to the same image as the `8.0.101` image, so dependabot is treating `8.0.202` as a pre-release. The `latest` tag needs to point to `8.0.202` for Dependabot to consider it.
updater | 2024/03/27 18:51:08 INFO <job_806298635> The `latest` tag points to the same image as the `8.0.101` image, so dependabot is treating `8.0.203` as a pre-release. The `latest` tag needs to point to `8.0.203` for Dependabot to consider it.
updater | 2024/03/27 18:51:08 INFO <job_806298635> Latest version is 8.0.101
updater | 2024/03/27 18:51:08 INFO <job_806298635> No update needed for dotnet/sdk 8.0.101

[richlander]

I can repro this.

[aPinat]

Looks like the issue lies here, where the latest tag is missing from the sharedTags:

dotnet-docker/manifest.json

Lines 8325 to 8344 in e5e8164

	{
	"productVersion": "$(sdk|8.0|product-version)",
	"sharedTags": {
	"$(sdk|8.0|product-version)": {},
	"8.0": {}
	},
	"platforms": [
	{
	"buildArgs": {
	"REPO": "$(Repo:aspnet)"
	},
	"dockerfile": "src/sdk/8.0/bookworm-slim/amd64",
	"dockerfileTemplate": "eng/dockerfile-templates/sdk/Dockerfile.linux",
	"os": "linux",
	"osVersion": "bookworm-slim",
	"tags": {
	"$(sdk|8.0|product-version)-bookworm-slim-amd64": {},
	"8.0-bookworm-slim-amd64": {}
	}
	},

Also not sure why there is another entry for what looks like the same image a few lines below as well:

dotnet-docker/manifest.json

Lines 8377 to 8394 in e5e8164

	{
	"id": "bookworm-slim",
	"productVersion": "$(sdk|8.0|product-version)",
	"sharedTags": {
	"$(sdk|8.0|product-version)-bookworm-slim": {},
	"8.0-bookworm-slim": {}
	},
	"platforms": [
	{
	"buildArgs": {
	"REPO": "$(Repo:aspnet)"
	},
	"dockerfile": "src/sdk/8.0/bookworm-slim/amd64",
	"dockerfileTemplate": "eng/dockerfile-templates/sdk/Dockerfile.linux",
	"os": "linux",
	"osVersion": "bookworm-slim",
	"tags": {}
	},

Looking at the runtime image where it works correctly for example, both of the above are consolidated and include the latest tag:

dotnet-docker/manifest.json

Lines 3417 to 3438 in e5e8164

	{
	"productVersion": "$(dotnet|8.0|product-version)",
	"sharedTags": {
	"$(dotnet|8.0|product-version)-bookworm-slim": {},
	"8.0-bookworm-slim": {},
	"$(dotnet|8.0|product-version)": {},
	"8.0": {},
	"latest": {}
	},
	"platforms": [
	{
	"buildArgs": {
	"REPO": "$(Repo:runtime-deps)"
	},
	"dockerfile": "src/runtime/8.0/bookworm-slim/amd64",
	"dockerfileTemplate": "eng/dockerfile-templates/runtime/Dockerfile.linux",
	"os": "linux",
	"osVersion": "bookworm-slim",
	"tags": {
	"$(dotnet|8.0|product-version)-bookworm-slim-amd64": {},
	"8.0-bookworm-slim-amd64": {}
	}

[lbussell]

Thanks for the investigation, I'll fix this right away.