Xeonr Developer Docs
API SpecificationContainer Files

Write Container File

POST
/containers.api.v1.FilesystemService/WriteFile

Client-streaming write into a running workload's container: the first message must be the header (InvalidArgument otherwise), later messages are data. Overwrites by default (mode 0 means 0644); APPEND and PATCH_AT_OFFSET are also supported. The whole write is capped at 64 MiB. The rootfs is read-only unless the environment sets writable_rootfs, so writes usually land only in mounted volumes. The target must be a RUNNING sandbox or job (FailedPrecondition otherwise); errno is mapped to a status (ENOENT NotFound, EEXIST AlreadyExists, EACCES/EPERM PermissionDenied, EROFS FailedPrecondition, ENOSPC ResourceExhausted). /.cp is hidden. Unavailable when the in-container handler is not running; Unimplemented without cluster access.

Access: namespace OPERATOR or above (write) on the target's namespace. Workspace-scoped credentials (a workload's own agent key) are refused.

Authorization

BearerAuth
AuthorizationBearer <token>

A namespace-scoped API key (cpk_…) for machines, or a Xeonr Auth OIDC token for humans. The key's namespace and role are pinned server-side.

In: header

Header Parameters

Connect-Protocol-Version?number

Define the version of the Connect protocol

Connect-Timeout-Ms?number

Define the timeout, in ms

Request Body

application/connect+json

data?string

The whole write is capped at 64 MiB, so no single chunk may exceed it.

Formatbyte
Lengthlength <= 67108864

Response Body

application/connect+json

application/connect+json

curl -X POST "https://containers.xeonr.io/containers.api.v1.FilesystemService/WriteFile" \  -H "Connect-Protocol-Version: 1" \  -H "Connect-Timeout-Ms: 1000" \  -H "Content-Type: application/connect+json" \  -d ''
{
  "info": {
    "path": "string",
    "size": "string",
    "mode": 0,
    "isDir": true,
    "sha256": "string",
    "mtimeUnix": "string",
    "symlinkTarget": "string"
  }
}
{
  "code": "not_found",
  "message": "string",
  "details": [
    {
      "type": "string",
      "value": "string",
      "debug": {}
    }
  ]
}