dagger/docs/core-concepts/1203-client.md

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Interacting with the client

dagger.#Plan has a client field that allows interaction with the local machine where the dagger command line client is run. You can:

• Read and write files and directories;
• Use local sockets;
• Load environment variables;
• Run commands;
• Get current platform.

Accessing the file system

You may need to load a local directory as a dagger.#FS type in your plan:

It’s also easy to write a file locally:

Using a local socket

You can use a local socket in an action:

import Tabs from '@theme/Tabs'; import TabItem from '@theme/TabItem';

Environment variables

Environment variables can be read from the local machine as strings or secrets, just specify the type:

Running commands

Sometimes you need something more advanced that only a local command can give you:

:::tip You can also capture stderr for errors and provide stdin for input. :::

Platform

If you need the current platform though, there’s a more portable way than running uname like in the previous example: