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Manage Docker containers, images, networks, volumes, and daemon metadata with Unix socket, TCP, TLS, or SSH connections

Actions42

Container → Read Text File

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Summary

Read a text file from a Docker container

Inputs

  • containerId (required) — Container name or full/short container ID
  • workingPath — Absolute path inside the container; relative paths resolve from here (Linux containers only)
  • filePath (required) — Absolute path or path relative to Working Path of the file to read
  • startLine — Only return content starting from this 1‑based line number
  • endLine — Only return content through this 1‑based line number

Output shape

a single string containing the file content

If startLine or endLine are specified, only the indicated range is returned; otherwise the entire file content is returned. The result is provided as a string in the workflow data.

Examples

Example 1: Read config.json from /workspace/app

containerId: mycontainer; workingPath: /workspace; filePath: app/config.json; startLine: (empty); endLine: (empty)

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