Struct UpdateCommand 

pub struct UpdateCommand {
    pub executor: CommandExecutor,
    /* private fields */
}

Docker update command builder

Update configuration of one or more containers.

Example

use docker_wrapper::UpdateCommand;

// Update memory limit
let result = UpdateCommand::new("my-container")
    .memory("512m")
    .run()
    .await?;

if result.success() {
    println!("Container updated successfully");
}

Fields

executor: CommandExecutor

Command executor

Implementations

impl UpdateCommand

pub fn new(container: impl Into<String>) -> Self

Create a new update command for a single container

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container");

pub fn new_multiple(containers: Vec<impl Into<String>>) -> Self

Create a new update command for multiple containers

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new_multiple(vec!["web", "db", "cache"]);

pub fn container(self, container: impl Into<String>) -> Self

Add another container to update

pub fn memory(self, memory: impl Into<String>) -> Self

Set memory limit

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .memory("512m");

pub fn memory_reservation(self, memory_reservation: impl Into<String>) -> Self

Set memory reservation (soft limit)

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .memory_reservation("256m");

pub fn memory_swap(self, memory_swap: impl Into<String>) -> Self

Set memory swap limit

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .memory_swap("1g");

pub fn cpu_shares(self, cpu_shares: u64) -> Self

Set CPU shares (relative weight)

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .cpu_shares(512);

pub fn cpu_period(self, cpu_period: u64) -> Self

Set CPU period

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .cpu_period(100_000);

pub fn cpu_quota(self, cpu_quota: i64) -> Self

Set CPU quota

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .cpu_quota(50000);

pub fn cpus(self, cpus: impl Into<String>) -> Self

Set number of CPUs

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .cpus("1.5");

pub fn cpuset_cpus(self, cpuset_cpus: impl Into<String>) -> Self

Set CPU set

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .cpuset_cpus("0,1");

pub fn cpuset_mems(self, cpuset_mems: impl Into<String>) -> Self

Set memory nodes

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .cpuset_mems("0");

pub fn blkio_weight(self, blkio_weight: u16) -> Self

Set block IO weight

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .blkio_weight(500);

pub fn kernel_memory(self, kernel_memory: impl Into<String>) -> Self

Set kernel memory limit

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .kernel_memory("128m");

pub fn restart(self, restart: impl Into<String>) -> Self

Set restart policy

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .restart("unless-stopped");

pub fn pids_limit(self, pids_limit: i64) -> Self

Set PID limit

Example

use docker_wrapper::UpdateCommand;

let cmd = UpdateCommand::new("my-container")
    .pids_limit(100);

pub async fn run(&self) -> Result<UpdateResult>

Execute the update command

Errors

Returns an error if:

• The Docker daemon is not running
• Any of the specified containers don’t exist
• Invalid resource limits are specified

Example

use docker_wrapper::UpdateCommand;

let result = UpdateCommand::new("my-container")
    .memory("1g")
    .cpu_shares(512)
    .run()
    .await?;

if result.success() {
    println!("Updated containers: {:?}", result.containers());
}

Trait Implementations

impl Clone for UpdateCommand

fn clone(&self) -> UpdateCommand

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UpdateCommand

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

Formats the value using the given formatter.

impl DockerCommand for UpdateCommand

type Output = CommandOutput

The output type this command produces

fn build_command_args(&self) -> Vec<String>

Build the complete command arguments including subcommands

fn get_executor(&self) -> &CommandExecutor

Get the command executor for extensibility

fn get_executor_mut(&mut self) -> &mut CommandExecutor

Get mutable command executor for extensibility

fn execute<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Self::Output>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Execute the command and return the typed output

fn execute_command<'life0, 'async_trait>( &'life0 self, command_args: Vec<String>, ) -> Pin<Box<dyn Future<Output = Result<CommandOutput>> + Send + 'async_trait>>

where Self: Sync + 'async_trait, 'life0: 'async_trait,

Helper method to execute the command with proper error handling

fn arg<S: AsRef<OsStr>>(&mut self, arg: S) -> &mut Self

Add a raw argument to the command (escape hatch)

fn args<I, S>(&mut self, args: I) -> &mut Self

where I: IntoIterator<Item = S>, S: AsRef<OsStr>,

Add multiple raw arguments to the command (escape hatch)

fn flag(&mut self, flag: &str) -> &mut Self

Add a flag option (e.g., –detach, –rm)

fn option(&mut self, key: &str, value: &str) -> &mut Self

Add a key-value option (e.g., –name value, –env key=value)