Kubectl kustomize: Difference between revisions
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The "kustomize" logic reads a series of source API resource [[Kubernetes Manifests#Overview|manifests]], instructions from a kustomization.yaml file and generates syntactically valid and complete API resource [[Kubernetes Manifests#Overview|manifests]] at stdout. The generated content may contain multiple resource representations, separated by ---. The output can be further processed by other tools or streamed directly into <tt>kubectl</tt> for deployment to a cluster. | The "kustomize" logic reads a series of source API resource [[Kubernetes Manifests#Overview|manifests]], instructions from a kustomization.yaml file and generates syntactically valid and complete API resource [[Kubernetes Manifests#Overview|manifests]] at stdout. The generated content may contain multiple resource representations, separated by ---. The output can be further processed by other tools or streamed directly into <tt>kubectl</tt> for deployment to a cluster. | ||
kubectl kustomize <''dirname''> | kubectl kustomize <''dirname''> > ''ouptut.yaml'' | ||
The directory specified as argument must contain <tt>kustomization.yaml</tt>. | The directory specified as argument must contain <tt>kustomization.yaml</tt>. | ||
Revision as of 17:23, 23 August 2019
External
- https://kubernetes.io/blog/2018/05/29/introducing-kustomize-template-free-configuration-customization-for-kubernetes/
- https://github.com/kubernetes-sigs/kustomize
Internal
Overview
The "kustomize" logic reads a series of source API resource manifests, instructions from a kustomization.yaml file and generates syntactically valid and complete API resource manifests at stdout. The generated content may contain multiple resource representations, separated by ---. The output can be further processed by other tools or streamed directly into kubectl for deployment to a cluster.
kubectl kustomize <dirname> > ouptut.yaml
The directory specified as argument must contain kustomization.yaml.
It seems to add prefixes to names, update image tags, adds namespace metadata, "yaml-cleans" according to rules that have yet to be elucidated.
kustomization.yaml Example
namePrefix:
images:
- name: something
newTag: ...
namespace: ...
resources:
- manifest-1.yaml
- manifest-2.yaml
patchesStrategicMerge:
- file1.yaml