Struct mz_orchestrator::ServiceConfig

pub struct ServiceConfig {

    pub image: String,
    pub init_container_image: Option<String>,
    pub args: Box<dyn Fn(&BTreeMap<String, String>) -> Vec<String> + Send + Sync>,
    pub ports: Vec<ServicePort>,
    pub memory_limit: Option<MemoryLimit>,
    pub cpu_limit: Option<CpuLimit>,
    pub scale: u16,
    pub labels: BTreeMap<String, String>,
    pub availability_zones: Option<Vec<String>>,
    pub other_replicas_selector: Vec<LabelSelector>,
    pub replicas_selector: Vec<LabelSelector>,
    pub disk: bool,
    pub disk_limit: Option<DiskLimit>,
    pub node_selector: BTreeMap<String, String>,
}

Describes the desired state of a service.

Fields

image: String

An opaque identifier for the executable or container image to run.

Often names a container on Docker Hub or a path on the local machine.

init_container_image: Option<String>

For the Kubernetes orchestrator, this is an init container to configure for the pod running the service.

args: Box<dyn Fn(&BTreeMap<String, String>) -> Vec<String> + Send + Sync>

A function that generates the arguments for each process of the service given the assigned listen addresses for each named port.

ports: Vec<ServicePort>

Ports to expose.

memory_limit: Option<MemoryLimit>

An optional limit on the memory that the service can use.

cpu_limit: Option<CpuLimit>

An optional limit on the CPU that the service can use.

scale: u16

The number of copies of this service to run.

labels: BTreeMap<String, String>

Arbitrary key–value pairs to attach to the service in the orchestrator backend.

The orchestrator backend may apply a prefix to the key if appropriate.

availability_zones: Option<Vec<String>>

The availability zones the service can be run in. If no availability zones are specified, the orchestrator is free to choose one.

other_replicas_selector: Vec<LabelSelector>

A set of label selectors selecting all other services that are replicas of this one.

This may be used to implement anti-affinity. If all such selectors match for a given service, this service should not be co-scheduled on a machine with that service.

The orchestrator backend may or may not actually implement anti-affinity functionality.

replicas_selector: Vec<LabelSelector>

A set of label selectors selecting all services that are replicas of this one, including itself.

This may be used to implement placement spread.

The orchestrator backend may or may not actually implement placement spread functionality.

disk: bool

Whether scratch disk space should be allocated for the service.

disk_limit: Option<DiskLimit>

The maximum amount of scratch disk space that the service is allowed to consume.

node_selector: BTreeMap<String, String>

Node selector for this service.

Trait Implementations

impl Debug for ServiceConfig

fn fmt(&self, __f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.