Trait Executor 

pub trait Executor: CloneBoxExecutor {
    // Required methods
    fn exec(&self, spec: &Spec) -> Result<(), ExecutorError>;
    fn validate(&self, spec: &Spec) -> Result<(), ExecutorValidationError>;

    // Provided method
    fn setup_envs(
        &self,
        envs: HashMap<String, String>,
    ) -> Result<(), ExecutorSetEnvsError> { ... }
}

Required Methods

fn exec(&self, spec: &Spec) -> Result<(), ExecutorError>

Executes the workload

fn validate(&self, spec: &Spec) -> Result<(), ExecutorValidationError>

Validate if the spec can be executed by the executor. This step runs after the container init process is created, entered into the correct namespace and cgroups, and pivot_root into the rootfs. But this step runs before waiting for the container start signal.

Provided Methods

fn setup_envs( &self, envs: HashMap<String, String>, ) -> Result<(), ExecutorSetEnvsError>

Set environment variables for the container process to be executed. This step runs after the container init process is created, entered into the correct namespace and cgroups, and pivot_root into the rootfs. But this step runs before waiting for the container start signal. The host’s environment variables are not cleared yet at this point. They should be cleared explicitly if needed.

Trait Implementations

impl Clone for Box<dyn Executor>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl Executor for DefaultExecutor