Whitelist recursively transformable kinds. #3833
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Refers to issue GoogleContainerTools#1737. Previously FieldVisitors (image/namespace collector/transformer, labelsSetter) are applied to all fields of all resources recursively except for CRDs which were known to break otherwise since their schema contains a "metadata" property as well. However other unknown kinds / CRs may contain such properties as well and break. This PR whitelists the known kinds that can be transformed recursively instead of attempting to blacklist kinds that cannot. Signed-off-by: Max Goltzsche <max.goltzsche@gmail.com>
mgoltzsche
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balopat,
dgageot,
nkubala and
tejal29
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Apr 15, 2020
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Description
Refers to/fixes #1737, particularly to this comment.
Previously (PR) FieldVisitors (image/namespace collector/transformer, labelsSetter) are applied to all fields of all resources recursively except for CRDs which were known to break otherwise since their schema contains a "metadata" property as well.
However other unknown kinds / CRs may contain such properties as well and break.
This PR whitelists the known kinds that can be transformed recursively instead of attempting to blacklist kinds that cannot be.
User facing changes
Applying a CR that contains a "metadata" or "image" field within the spec will work. (Previously skaffold destroyed the CR.)
Resource label and image modifications are only applied recursively on the fields of a known workload kind: Pod, ReplicaSet, StatefulSet, Deployment, DaemonSet, Job, CronJob.