Kubernetes Deployment Manifest: Difference between revisions
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=External= | =External= | ||
* https://kubernetes.io/docs/reference/generated/kubernetes-api/v1. | * https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.19/#deployment-v1-apps | ||
=Internal= | =Internal= | ||
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=Example= | =Example= | ||
<font size=-1> | |||
[[Kubernetes_Manifests#apiVersion|apiVersion]]: apps/v1 | [[Kubernetes_Manifests#apiVersion|apiVersion]]: apps/v1 | ||
[[Kubernetes_Manifests#kind|kind]]: Deployment | [[Kubernetes_Manifests#kind|kind]]: Deployment | ||
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[[#selector|selector]]: | [[#selector|selector]]: | ||
matchLabels: | matchLabels: | ||
function: | function: builder | ||
[[#strategy|strategy]]: | [[#strategy|strategy]]: | ||
[[#revisionHistoryLimit|revisionHistoryLimit]]: | [[#revisionHistoryLimit|revisionHistoryLimit]]: | ||
[[#progressDeadlineSeconds|progressDeadlineSeconds]]: | [[#progressDeadlineSeconds|progressDeadlineSeconds]]: | ||
[[#template|template]]: | [[#template|template]]: | ||
metadata: | |||
labels: | |||
function: builder | |||
# see [[Kubernetes_Pod_Manifest#Example|pod manifest]] | |||
... | |||
spec: | |||
# see [[Kubernetes_Pod_Manifest#Example|pod manifest]] | |||
... | |||
</font> | |||
=.spec Elements= | =.spec Elements= | ||
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Specifies the number of desired pods. Defaults to 1. | Specifies the number of desired pods. Defaults to 1. | ||
0 is a valid value, it indicates that the deployment should be created but no pods should be started at the time of the deployment creation. The deployment can be scaled later with [[kubectl scale]]. | |||
==selector== | ==selector== | ||
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==template== | ==template== | ||
The template describes the pods that will be created. | The template describes the pods that will be created. Its structure is similar to that of a pod manifest. | ||
===Pod Names=== | |||
See: {{Internal|Kubernetes Deployments#Pod_Name|Deployments | Pod Name}} | |||
===Pod Manifest=== | |||
{{Internal|Kubernetes_Pod_Manifest#Example|Pod Manifest}} | |||
Latest revision as of 20:10, 29 March 2024
External
Internal
Overview
Example
apiVersion: apps/v1 kind: Deployment metadata: name: archaeopteryx labels: color: blue spec: replicas: 1 selector: matchLabels: function: builder strategy: revisionHistoryLimit: progressDeadlineSeconds: template: metadata: labels: function: builder # see pod manifest ... spec: # see pod manifest ...
.spec Elements
replicas
Specifies the number of desired pods. Defaults to 1.
0 is a valid value, it indicates that the deployment should be created but no pods should be started at the time of the deployment creation. The deployment can be scaled later with kubectl scale.
selector
Specifies the label selector for pods. Existing ReplicaSets whose pods are selected by this will be the ones affected by this deployment. It must match the pod template's labels.
strategy
Specifies the deployment strategy to use to replace existing pods with new ones.
revisionHistoryLimit
The number of old ReplicaSets to retain to allow rollback. Defaults to 10.
progressDeadlineSeconds
The maximum time in seconds for a deployment to make progress before it is considered to be failed. The deployment controller will continue to process failed deployments and a condition with a ProgressDeadlineExceeded reason will be surfaced in the deployment status. Note that progress will not be estimated during the time a deployment is paused. Defaults to 600s.
template
The template describes the pods that will be created. Its structure is similar to that of a pod manifest.
Pod Names
See: