Line breaks on long strings with spaces

[maxhomann]

When combining helm templates with kustomize overlays, a line break is inserted when the line is very long and contains spaces.

Tested versions: 2.0.1 and 2.0.3
Using test/base.yml:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: test
  labels:
    app.version: "{{ .Values.services.mariadb.app.version }}"
spec:
  template:
    spec:
      containers:
      - name: mariadb
        image: "thisIsAReallyLongRepositoryLinkThatResultsInALineBreakWhenBuildingWithKustomize/mariadb:{{ .Values.services.mariadb.image.version }}"

and test/kustomization.yml

apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization

resources:
- base.yml

results in

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  labels:
    app.version: '{{ .Values.services.mariadb.app.version }}'
  name: test
spec:
  template:
    spec:
      containers:
      - image: thisIsAReallyLongRepositoryLinkThatResultsInALineBreakWhenBuildingWithKustomize/mariadb:{{
          .Values.services.mariadb.image.version }}
        name: mariadb

Expected Behavior:

• Line without line break
• Also, the string/quoted value of the image name in base.yml is converted to an unqouted value on build while the app.version label is enclosed in single quotes. I would expect that either the quotes are not removed at all or the quoting behavior is constant

[laverya]

I think if go-yaml/yaml#455 gets merged that might be the signal to migrate to yaml.v3, and unlimited line lengths...

[maxhomann]

This behavior is still in v3.0.1. Using the same input files, the output has line breaks:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  labels:
    app.version: '{{ .Values.services.mariadb.app.version }}'
  name: test
spec:
  template:
    spec:
      containers:
      - image: thisIsAReallyLongRepositoryLinkThatResultsInALineBreakWhenBuildingWithKustomize/mariadb:{{
          .Values.services.mariadb.image.version }}

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[rchessa]

Hi guys,

there is a workaround for this issue?

[kristofferahl]

Have the same issue here. Need to keep the formatting as is without breaking long lines. Any ideas?

[kautsig]

@kristofferahl, we worked around this by using:

attribute: |
  very long line

Not sure if this is semantically 100% equal, though. It mitigated the issue in our specific case.

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@fejta-bot: Closing this issue.

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