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Updating MaxSurge and unavailable to be on desired replicas

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nikhiljindal 2015-09-16 17:33:47 -07:00
parent b051f3d3df
commit c56a415bb7
1 changed files with 11 additions and 10 deletions
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21
pkg/apis/experimental/v1/types.go
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@ -243,27 +243,28 @@ const (
// Spec to control the desired behavior of rolling update. // Spec to control the desired behavior of rolling update.
type RollingUpdateDeployment struct { type RollingUpdateDeployment struct {
// The maximum number of pods that can be unavailable during the update. // The maximum number of pods that can be unavailable during the update.
// Value can be an absolute number (ex: 5) or a percentage of total pods at the start of update (ex: 10%). // Value can be an absolute number (ex: 5) or a percentage of desired pods (ex: 10%).
// Absolute number is calculated from percentage by rounding up. // Absolute number is calculated from percentage by rounding up.
// This can not be 0 if MaxSurge is 0. // This can not be 0 if MaxSurge is 0.
// By default, a fixed value of 1 is used. // By default, a fixed value of 1 is used.
// Example: when this is set to 30%, the old RC can be scaled down by 30% // Example: when this is set to 30%, the old RC can be scaled down to 70% of desired pods
// immediately when the rolling update starts. Once new pods are ready, old RC // immediately when the rolling update starts. Once new pods are ready, old RC
// can be scaled down further, followed by scaling up the new RC, ensuring // can be scaled down further, followed by scaling up the new RC, ensuring
// that at least 70% of original number of pods are available at all times // that the total number of pods available at all times during the update is at
// during the update. // least 70% of desired pods.
MaxUnavailable *util.IntOrString `json:"maxUnavailable,omitempty"` MaxUnavailable *util.IntOrString `json:"maxUnavailable,omitempty"`
// The maximum number of pods that can be scheduled above the original number of // The maximum number of pods that can be scheduled above the desired number of
// pods. // pods.
// Value can be an absolute number (ex: 5) or a percentage of total pods at // Value can be an absolute number (ex: 5) or a percentage of desired pods (ex: 10%).
// the start of the update (ex: 10%). This can not be 0 if MaxUnavailable is 0. // This can not be 0 if MaxUnavailable is 0.
// Absolute number is calculated from percentage by rounding up. // Absolute number is calculated from percentage by rounding up.
// By default, a value of 1 is used. // By default, a value of 1 is used.
// Example: when this is set to 30%, the new RC can be scaled up by 30% // Example: when this is set to 30%, the new RC can be scaled up immediately when
// immediately when the rolling update starts. Once old pods have been killed, // the rolling update starts, such that the total number of old and new pods do not exceed
// 130% of desired pods. Once old pods have been killed,
// new RC can be scaled up further, ensuring that total number of pods running // new RC can be scaled up further, ensuring that total number of pods running
// at any time during the update is atmost 130% of original pods. // at any time during the update is atmost 130% of desired pods.
MaxSurge *util.IntOrString `json:"maxSurge,omitempty"` MaxSurge *util.IntOrString `json:"maxSurge,omitempty"`
// Minimum number of seconds for which a newly created pod should be ready // Minimum number of seconds for which a newly created pod should be ready