Struct google_container1::UpgradeSettings

pub struct UpgradeSettings {
    pub max_surge: Option<i32>,
    pub max_unavailable: Option<i32>,
}

These upgrade settings control the level of parallelism and the level of disruption caused by an upgrade.

maxUnavailable controls the number of nodes that can be simultaneously unavailable.

maxSurge controls the number of additional nodes that can be added to the node pool temporarily for the time of the upgrade to increase the number of available nodes.

(maxUnavailable + maxSurge) determines the level of parallelism (how many nodes are being upgraded at the same time).

Note: upgrades inevitably introduce some disruption since workloads need to be moved from old nodes to new, upgraded ones. Even if maxUnavailable=0, this holds true. (Disruption stays within the limits of PodDisruptionBudget, if it is configured.)

Consider a hypothetical node pool with 5 nodes having maxSurge=2, maxUnavailable=1. This means the upgrade process upgrades 3 nodes simultaneously. It creates 2 additional (upgraded) nodes, then it brings down 3 old (not yet upgraded) nodes at the same time. This ensures that there are always at least 4 nodes available.

This type is not used in any activity, and only used as part of another schema.

Fields

max_surge: Option<i32>

The maximum number of nodes that can be created beyond the current size of the node pool during the upgrade process.

max_unavailable: Option<i32>

The maximum number of nodes that can be simultaneously unavailable during the upgrade process. A node is considered available if its status is Ready.

Trait Implementations

impl Clone for UpgradeSettings

fn clone(&self) -> UpgradeSettings

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for UpgradeSettings

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Default for UpgradeSettings

fn default() -> UpgradeSettings

Returns the "default value" for a type.

impl<'de> Deserialize<'de> for UpgradeSettings

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error> where
    __D: Deserializer<'de>, 

Deserialize this value from the given Serde deserializer.

impl Part for UpgradeSettings

impl Serialize for UpgradeSettings

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.