[英]How to patch multi document yaml file on condition using yq?
Having YAML document something like:拥有 YAML 文件如下:
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: allow-scraping
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: allow-webhooks
I am trying to get something like我想得到类似的东西
---
apiVersion: **networking.k8s.io/v1beta1**
kind: NetworkPolicy
metadata:
name: allow-scraping
---
apiVersion: apps/v1
kind: Deployment
metadata:
name: allow-webhooks
So basically get document, if document has kind: NetworkPolicy
then patch apiVersion: networking.k8s.io/v1beta1
.所以基本上得到文件,如果文件有
kind: NetworkPolicy
然后补丁apiVersion: networking.k8s.io/v1beta1
。
Ideally one liner, ideally with yq v4, but other solutions will be helpful too.理想情况下一个班轮,理想情况下使用 yq v4,但其他解决方案也会有所帮助。
With mikefarah/yq on versions beyond 4, you could do a select
and update |=
operation on the required document在超过 4 的版本上使用mikefarah/yq ,您可以执行
select
并更新|=
对所需文档的操作
yq e 'select(.kind == "NetworkPolicy").apiVersion |= "networking.k8s.io/v1beta1"' yaml
The above works fine on yq version 4.6.0
.以上在
yq version 4.6.0
上运行良好。 Use the -i
flag to replace the file in-place.使用
-i
标志就地替换文件。
Given that other solutions will be helpful - an alternative solution would be using kustomize :鉴于其他解决方案会有所帮助 - 另一种解决方案是使用kustomize :
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
- network-policy.yaml
patches:
- target:
kind: NetworkPolicy
group: networking.k8s.io
version: v1
patch: |
- op: replace
path: /apiVersion
value: networking.k8s.io/v1beta1
kustomize build | kubectl apply -f -
or或者
kubectl apply -k .
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