ls: format opt #1787

crazy-max · 2023-05-10T11:57:22Z

fixes #325
follow-up #830 with just the format opt.

$ docker buildx ls
NAME/NODE             DRIVER/ENDPOINT                                             STATUS     BUILDKIT   PLATFORMS
builder               docker-container
 \_ builder0           \_ unix:///var/run/docker.sock                             running    v0.11.6    linux/amd64, linux/amd64/v2, linux/amd64/v3, linux/arm64, linux/riscv64, linux/ppc64le
 \_ mac-mini-m1        \_ tcp://mac-mini-m1.home.foo.com:2376                     stopped               linux/arm64*
builder2*             docker-container
 \_ builder20          \_ unix:///var/run/docker.sock                             running    v0.11.6    linux/amd64, linux/amd64/v2, linux/amd64/v3, linux/arm64, linux/riscv64, linux/ppc64le
remote-builder        remote
 \_ remote-builder0    \_ docker-container://buildx_buildkit_dk-remote-builder0   inactive
 \_ aws_graviton2      \_ tcp://10.0.0.1:1234                                     running               darwin/arm64*, linux/arm64*, linux/arm/v5*, linux/arm/v6*, linux/arm/v7*, windows/arm64*
 \_ linuxone_s390x     \_ tcp://10.0.0.2:1234                                     running               linux/s390x*
default               docker
 \_ default            \_ default                                                 running    v0.8.2     linux/amd64, linux/arm64, linux/riscv64, linux/ppc64le, linux/s390x, linux/386
desktop-linux         docker
 \_ desktop-linux      \_ desktop-linux                                           error
desktop-windows       docker
 \_ desktop-windows    \_ desktop-windows                                         error
docker2010            docker
 \_ docker2010         \_ docker2010                                              running    v0.8.2     linux/amd64, linux/arm64, linux/riscv64, linux/ppc64le, linux/s390x, linux/386

Failed to get status for desktop-linux (desktop-linux): protocol not available
Failed to get status for desktop-windows (desktop-windows): protocol not available

$ docker buildx ls --format json
{"Name":"builder","Driver":"docker-container","Dynamic":false,"Nodes":[{"Name":"builder0","Endpoint":"unix:///var/run/docker.sock","Platforms":["linux/amd64","linux/amd64/v2","linux/amd64/v3","linux/arm64","linux/riscv64","linux/ppc64le","linux/s390x","linux/386","linux/mips64le","linux/mips64","linux/arm/v7","linux/arm/v6"],"Flags":["--debug","--allow-insecure-entitlement","security.insecure","--allow-insecure-entitlement","network.host"],"DriverOpts":{"env.BUILDKIT_STEP_LOG_MAX_SIZE":"10485760","env.BUILDKIT_STEP_LOG_MAX_SPEED":"10485760","env.JAEGER_TRACE":"localhost:6831","image":"moby/buildkit:master","network":"host"},"Status":"running","Version":"v0.11.6"},{"Name":"mac-mini-m1","Endpoint":"tcp://mac-mini-m1.home.foo.com:2376","DriverOpts":{"image":"moby/buildkit:master"},"Status":"stopped"}]}
{"Name":"builder2","Driver":"docker-container","Dynamic":false,"Nodes":[{"Name":"builder20","Endpoint":"unix:///var/run/docker.sock","Platforms":["linux/amd64","linux/amd64/v2","linux/amd64/v3","linux/arm64","linux/riscv64","linux/ppc64le","linux/s390x","linux/386","linux/mips64le","linux/mips64","linux/arm/v7","linux/arm/v6"],"Flags":["--debug","--allow-insecure-entitlement","security.insecure","--allow-insecure-entitlement","network.host"],"DriverOpts":{"env.BUILDKIT_STEP_LOG_MAX_SIZE":"10485760","env.BUILDKIT_STEP_LOG_MAX_SPEED":"10485760","env.JAEGER_TRACE":"localhost:6831","image":"moby/buildkit:master","network":"host"},"Status":"running","Version":"v0.11.6"}]}
{"Name":"remote-builder","Driver":"remote","Dynamic":false,"Nodes":[{"Name":"remote-builder0","Endpoint":"docker-container://buildx_buildkit_dk-remote-builder0","Status":"inactive"},{"Name":"aws_graviton2","Endpoint":"tcp://10.0.0.2:1234","Platforms":["linux/arm64","linux/arm/v7","linux/arm/v6"],"DriverOpts":{"cacert":"/home/crazy/.certs/aws_graviton2/ca.pem","cert":"/home/crazy/.certs/aws_graviton2/cert.pem","key":"/home/crazy/.certs/aws_graviton2/key.pem"},"Status":"running"},{"Name":"linuxone_s390x","Endpoint":"tcp://10.0.0.1:1234","Platforms":["linux/s390x"],"DriverOpts":{"cacert":"/home/crazy/.certs/linuxone_s390x/ca.pem","cert":"/home/crazy/.certs/linuxone_s390x/cert.pem","key":"/home/crazy/.certs/linuxone_s390x/key.pem"},"Status":"running"}]}
{"Name":"default","Driver":"docker","Dynamic":false,"Nodes":[{"Name":"default","Endpoint":"default","Platforms":["linux/amd64","linux/arm64","linux/riscv64","linux/ppc64le","linux/s390x","linux/386","linux/arm/v7","linux/arm/v6"],"Status":"running","Version":"v0.8.2"}]}
{"Name":"desktop-linux","Driver":"docker","Dynamic":false,"Nodes":[{"Name":"desktop-linux","Endpoint":"desktop-linux","Status":"error","Err":"protocol not available"}]}
{"Name":"desktop-windows","Driver":"docker","Dynamic":false,"Nodes":[{"Name":"desktop-windows","Endpoint":"desktop-windows","Status":"error","Err":"protocol not available"}]}
{"Name":"docker2010","Driver":"docker","Dynamic":false,"Nodes":[{"Name":"docker2010","Endpoint":"docker2010","Platforms":["linux/amd64","linux/arm64","linux/riscv64","linux/ppc64le","linux/s390x","linux/386","linux/arm/v7","linux/arm/v6"],"Status":"running","Version":"v0.8.2"}]}

$ docker buildx ls --format "{{.Builder.Name}}: {{range .Builder.Nodes}}{{ .Name }} {{end}}"
builder: builder0 
builder2: builder20 mac-mini-m1
remote-builder: remote-builder0 aws_graviton2 linuxone_s390x
default: default
desktop-linux: desktop-linux
desktop-windows: desktop-windows
docker2010: docker2010

crazy-max · 2023-05-11T08:57:02Z

I was wondering if formatting should be moved to a formatter pkg and maybe then we should have a parent cli pkg with both commands and formatter. Thoughts?

thaJeztah · 2023-05-11T09:10:18Z

I know there's been some shuffling around in the past between "a single formatter package, containing formatting for all (sub) commands / object-types", and "per-object-type formatters"

We need to have a look what works best; the "problem" I can see with putting all formatting in a single package, is that that package would now have to depend on all object-types (packages), whereas keeping it "per-object" could (potentially) allow for more granular imports (e.g. "I only need formatting for <object-type X>).

Of course, "common" / "generic" code should be put in a place that we can share.

thaJeztah

Also quick check (ISTR we have some commands that do "one" and some that do "the other); for the JSON output, do we want to use "jsonlines" (https://jsonlines.org), or an array?

I know jq is perfectly able to handle either
Other tools may have more difficulty with line-delimited
For some commands we used line-delimited, because we had to handle "streaming" responses (and didn't want to load everything into memory before being able to display (👈 but this probably doesn't apply to this command (I think we would have it all in memory, nothing streaming, right?)

commands/ls_print.go

thaJeztah · 2023-05-11T09:15:48Z

commands/ls_print.go

+	case formatter.TableFormatKey:
+		format = lsDefaultTableFormat


We may have been inconsistent with this; slightly wondering if we should consider the default to be a table or not. (because of the nested presentation). We probably called it "table" for docker service ps (or which one was it?)

The default presentation COULD be considered more of a tree format (moby/moby#44582 (comment)), which could keep the road open to implement a "flat" table presentation.

(I haven't fully thought this through though!) /cc @jalonsogo

That sounds like major change that should be first done upstream and then tackled in cli plugins no?

commands/ls_print.go

jedevc · 2023-05-11T09:20:12Z

docs/reference/buildx_ls.md

+| `.IsNode`         | `true` if entry is a node                   |
+| `.IsCurrent`      | `true` if entry is the active builder       |


Hm. I'm not sure I'm a fan of this approach for writing templates, I think we lose something from the structured data.

I think I'd rather have . be the builder, and have a .Nodes property contain a list of nodes that can be ranged or indexd to get the node details out.

Yeah me too but that's how the cli api does it today using the formatter context. I don't think there is something else than json-lines in the cli atm (cc @thaJeztah)

Ah I see @thaJeztah commented on this #1787 (review). I would also prefer json array tbh.

@jedevc was that specific about the .IsCurrent() ? I know we added that because in the past we had * as part of the name, which was not ideal, and having a separate .IsCurrent() allow it to be "formatted how you'd like", but still keeping the raw name available to be used.

Ah sorry my bad, comment on the wrong line 😢 I meant to comment on IsNode.

I was looking at https://docs.docker.com/engine/reference/commandline/service_ps/ which has services and tasks (similar to us with builders and nodes) and it seems format only handles tasks and not services: https://docs.docker.com/engine/reference/commandline/service_ps/#format

jedevc · 2023-05-11T09:23:41Z

I was wondering if formatting should be moved to a formatter pkg and maybe then we should have a parent cli pkg with both commands and formatter. Thoughts?

IMO, we can keep it more specific for this PR, and as we grow the functionality we can pick the one that's most natural? I don't expect anyone outside of buildx to use that API (:pray: hopefully :pray:), so we should be fine to change it.

It also feels like we might want buildx inspect to support --format as well. It feels like they're quite complimentary commands, so depending on the amount of work involved, might be nice to grab that for v0.11 as well?

thaJeztah · 2023-05-11T09:32:43Z

go.mod

@@ -120,6 +120,7 @@ require (
 	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 // indirect
 	github.com/klauspost/compress v1.16.0 // indirect
 	github.com/mailru/easyjson v0.7.6 // indirect
+	github.com/mattn/go-runewidth v0.0.13 // indirect


You could decide to bump this to v0.0.14 already; see docker/cli#4251 (v0.0.14 looks to have various performance improvements)

crazy-max · 2023-05-11T09:42:13Z

It also feels like we might want buildx inspect to support --format as well. It feels like they're quite complimentary commands, so depending on the amount of work involved, might be nice to grab that for v0.11 as well?

Yes this is the idea: #830 (comment)

crazy-max · 2023-05-12T12:21:20Z

Added Builder placeholder so we can access builder fields:

$ docker buildx ls --format "{{.Builder.Name}}: {{range .Builder.Nodes}}{{ .Name }} {{end}}"
builder: builder0 
builder2: builder20 mac-mini-m1
remote-builder: remote-builder0 aws_graviton2 linuxone_s390x
default: default
desktop-linux: desktop-linux
desktop-windows: desktop-windows
docker2010: docker2010

tonistiigi

This seems to make sense to me, but I don't know if there might be compatibility issues with any other CLI commands.

tonistiigi · 2023-11-22T06:13:38Z

builder/builder.go

+		berr = strings.TrimSpace(b.err.Error())
+	}
+	return json.Marshal(struct {
+		Name         string


Just confirming, these should not be lowercase?

Yes I don't think we should so we are aligned with the placeholders https://github.com/docker/buildx/pull/1787/files#diff-3d2c8ae27c3eb567b2564a6d5b460040e281261aa98ad464b86fc6a047892dcbR46

docs/reference/buildx_ls.md

Signed-off-by: CrazyMax <[email protected]>

crazy-max force-pushed the ls-format branch from 065c03c to 03d7669 Compare May 10, 2023 12:05

crazy-max mentioned this pull request May 10, 2023

vendor: github.com/docker/docker v23.0.6 #1788

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crazy-max force-pushed the ls-format branch from 03d7669 to d98eaca Compare May 10, 2023 18:50

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ls: format opt

20c9479

Signed-off-by: CrazyMax <[email protected]>

crazy-max force-pushed the ls-format branch from 8cde7d1 to 20c9479 Compare November 22, 2023 21:34

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Add a --quiet --no-trunc option to docker buildx ls #380

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ls: format opt #1787

ls: format opt #1787

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		\| `.IsNode` \| `true` if entry is a node \|
		\| `.IsCurrent` \| `true` if entry is the active builder \|

ls: format opt #1787

ls: format opt #1787

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