Host Mounts

Host directories can be mounted from the node to a task’s container image before the task is started. Here are some examples:

workflow:
  name: "host-mount"
  tasks:
  - name: task1
    volumeMounts:
    - /dev/shm             # (1)
    ...
  - name: task2
    image: ubuntu
    command: [sh]
    args: [/tmp/run.sh]
    files:
    - contents: |
        ls /home/opt
      path: /tmp/run.sh
    volumeMounts:
    - /opt:/home/opt       # (2)

1. Mount the /dev/shm directory from the node to the task container, allowing it to use shared memory.

2. Mount the /opt directory from the node to the /home/opt directory in the task container, allowing it to access the /opt directory.

Note

The default list of host directories that are allowed to be mounted in your task for each type of pool and platform can be configured but requires service-level configuration. If you have administrative access, you can enable this directly. Otherwise, contact someone with pool administration privileges.