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Make kubectl describe more tolerant of newlines #66841

Merged
merged 4 commits into from
Aug 3, 2018
Merged

Make kubectl describe more tolerant of newlines #66841

merged 4 commits into from
Aug 3, 2018

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smarterclayton
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@smarterclayton smarterclayton commented Jul 31, 2018 •
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Newlines in the command, args, env.value, or annotations fields are not uncommon. Wrap and indent these fields so that describe is more readable.

Before:

    Host Port:     <none>
    Command:
      /bin/bash
      -c
      #!/bin/bash
set -euo pipefail

# set by the node image
unset KUBECONFIG

trap 'kill $(jobs -p); exit 0' TERM

# track the current state of the config

After:

    Host Port:     <none>
    Command:
      /bin/bash
      -c
      #!/bin/bash
      set -euo pipefail

      # set by the node image
      unset KUBECONFIG

      trap 'kill $(jobs -p); exit 0' TERM

      # track the current state of the config

Annotations when wrapping:

Annotations:  kubectl.kubernetes.io/desired-replicas: 1
              openshift.io/deployer-pod.completed-at: 2018-07-31 22:47:15 +0000 UTC
              openshift.io/deployer-pod.created-at: 2018-07-31 22:37:11 +0000 UTC
              openshift.io/deployer-pod.name: test-3-deploy
              openshift.io/deployment-config.latest-version: 3
              openshift.io/deployment-config.name: test
              openshift.io/deployment.phase: Failed
              openshift.io/deployment.replicas: 0
              openshift.io/deployment.status-reason: manual change
              openshift.io/encoded-deployment-config:
                {"kind":"DeploymentConfig","apiVersion":"apps.openshift.io/v1","metadata":{"name":"test","namespace":"clayton-dev","selfLink":"/apis/apps.op...

Handle newlines for `command`, `args`, `env`, and `annotations` in `kubectl describe` wrapping

@smarterclayton
Break command and args in description by newline
0d8f87a 
Inline scripts may use newlines in these fields, and properly indenting makes the output more readable:

```
  Command:
    /bin/bash
    -c
    #!/bin/bash
    echo "inline script should be indented"
```
@smarterclayton
Environment vars with newlines should be indented
dca79aa 
Break env var values with newlines so they form a consistent left alignment.
@smarterclayton
Add tests for newline in command, arg, and env
b8809dc
@smarterclayton
Break annotations with newlines and shorten length
a234654 
Make annotations with newlines display a more consistent left edge, and indent the value
when the annotation is too long to give the value more space. Shorten the width of the
trimmed annotation to a value more consistent with our `-o wide` value.

Instead of putting the key and value flush with a `=` separator, make annotations closer
to fields than to labels by using `: ` as a separator.
@k8s-ci-robot k8s-ci-robot added release-note Denotes a PR that will be considered when it comes time to generate release notes. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. approved Indicates a PR has been approved by an approver from all required OWNERS files. labels Jul 31, 2018
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@kubernetes/sig-cli-bugs

@k8s-ci-robot k8s-ci-robot added sig/cli Categorizes an issue or PR as relevant to SIG CLI. kind/bug Categorizes issue or PR as related to a bug. labels Jul 31, 2018
@smarterclayton
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/retest

@juanvallejo
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/lgtm

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Aug 3, 2018
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: juanvallejo, smarterclayton

The full list of commands accepted by this bot can be found here.

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Automatic merge from submit-queue (batch tested with PRs 66911, 66841). If you want to cherry-pick this change to another branch, please follow the instructions here.

@k8s-github-robot k8s-github-robot merged commit 284964f into kubernetes:master Aug 3, 2018
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