Function exec_command 

pub async fn exec_command(
    client: &DockerClient,
    container: &str,
    cmd: Vec<&str>,
) -> Result<String, DockerError>

Execute a command in a running container and capture output

Creates an exec instance, runs the command, and collects stdout/stderr. Returns the combined output as a String.

Arguments

• client - Docker client
• container - Container name or ID
• cmd - Command and arguments to execute

Example

let output = exec_command(&client, "opencode-cloud", vec!["whoami"]).await?;