bug 1664579 corrected command syntax

[sheriff-rh]

link to bug:
https://bugzilla.redhat.com/show_bug.cgi?id=1664579

@xingxingxia PTAL.
@openshift/team-documentation need review please :)

[openshift-docs-preview-bot]

The preview will be availble shortly at:

• admin_guide/pruning_resources.adoc: https://bz1664579--ocpdocs.netlify.com/openshift-enterprise/latest/admin_guide/pruning_resources.html

[kalexand-rh]

As long as QE agrees, LGTM!

[vikram-redhat]

@xingxingxia PTAL

cc: @xltian

[xingxingxia]

Sorry for delay due to holidays and later other work.
It is better to try the command in terminal first.
Copy the PR's command text, paste in terminal and run, got:

$ image_name=sha256:86b9e4119c4fff8ca5cf4b726249d1533602b6aca83b813fe10193cfbd222580
$ oc get is -n openshift -o go-template='{{range $isi, $is := .items}}{{range
$ti, $tag := $is.status.tags}}{{range $ii, $item := $tag.items}}{{if eq
$item.image "'$image_name'"}}{{$is.metadata.name}}:{{$tag.tag}} at position
{{$ii}} out of {{len $tag.items}}\n{{end}}{{end}}{{end}}{{end}}'
error: error parsing template {{range $isi, $is := .items}}{{range
$ti, $tag := $is.status.tags}}{{range $ii, $item := $tag.items}}{{if eq
$item.image "sha256:86b9e4119c4fff8ca5cf4b726249d1533602b6aca83b813fe10193cfbd222580"}}{{$is.metadata.name}}:{{$tag.tag}} at position
{{$ii}} out of {{len $tag.items}}\n{{end}}{{end}}{{end}}{{end}}, template: output:2: unexpected unclosed action in range

[xingxingxia]

In above command, {{}} pairs happen across lines. Must put each {{ and its matching }} in one line, below got:

$ oc get is -n openshift -o go-template='{{range $isi, $is := .items}}{{range $ti, $tag := $is.status.tags}}{{range $ii, $item := $tag.items}}{{if eq $item.image "'$image_name'"}}{{$is.metadata.name}}:{{$tag.tag}} at position
{{$ii}} out of {{len $tag.items}}\n{{end}}{{end}}{{end}}{{end}}'
ruby:2.5 at position
0 out of 1\nruby:latest at position
0 out of 1\n

[xingxingxia]

Note \n usage does not take effect. To get new line in the place, use new line in the exact place. Below is the correct usage

$ oc get is -n openshift -o go-template='{{range $isi, $is := .items}}{{range $ti, $tag := $is.status.tags}}{{range $ii, $item := $tag.items}}{{if eq $item.image "'$image_name'"}}{{$is.metadata.name}}:{{$tag.tag}} at position {{$ii}} out of {{len $tag.items}}
{{end}}{{end}}{{end}}{{end}}' # Before this place {{end}}{{end}}{{end}}{{end}}, use new line
ruby:2.5 at position 0 out of 1
ruby:latest at position 0 out of 1

[sheriff-rh]

/cherrypick enterprise-3.11

[openshift-cherrypick-robot]

@sheriff-rh: new pull request created: #13688

Details

In response to this:

/cherrypick enterprise-3.11

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[sheriff-rh]

/cherrypick enterprise-3.10

[openshift-cherrypick-robot]

@sheriff-rh: new pull request created: #13689

Details

In response to this:

/cherrypick enterprise-3.10

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[sheriff-rh]

/cherrypick enterprise-3.9

[openshift-cherrypick-robot]

@sheriff-rh: new pull request created: #13691

Details

In response to this:

/cherrypick enterprise-3.9

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[sheriff-rh]

/cherrypick enterprise-3.7

[openshift-cherrypick-robot]

@sheriff-rh: new pull request created: #13694

Details

In response to this:

/cherrypick enterprise-3.7

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[sheriff-rh]

/cherrypick enterprise-3.6

[openshift-cherrypick-robot]

@sheriff-rh: new pull request created: #13695

Details

In response to this:

/cherrypick enterprise-3.6

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[sheriff-rh]

/cherrypick enterprise-3.5

[openshift-cherrypick-robot]

@sheriff-rh: new pull request created: #13696

Details

In response to this:

/cherrypick enterprise-3.5

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[sheriff-rh]

/cherrypick enterprise-3.4

[openshift-cherrypick-robot]

@sheriff-rh: new pull request created: #13697

Details

In response to this:

/cherrypick enterprise-3.4

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.

[xingxingxia]

{{end}}{{end}}{{end}}{{end}}' # Before this place {{end}}{{end}}{{end}}{{end}}, use new line

As shown in above comment, need use new line before the place {{end}}{{end}}{{end}}{{end}}, otherwise the output is in one line:
ruby:2.5 at position 0 out of 1ruby:latest at position 0 out of 1

[xingxingxia]

$ $ oc get

Also, two $ typed here

[sheriff-rh]

Totally missed that. Fixing now. Thanks @xingxingxia!