Oracle Cloud Infrastructure Documentation

Running CLIs on Device-Hosted Compute Instances

Configure your Roving Edge Infrastructure device to run the command line interface (CLI) on its compute instances.

Follow these guidelines for running CLIs on compute instances hosted by Roving Edge Infrastructure devices.

Note

The instructions in this topic are for Oracle Linux host computers.

  • Have the VM go through the following local IP:

    169.254.169.254

  • Have the VM refer to the Roving Edge Infrastructure device as otec-console-local.

  • Employ the following IP Tables rules:

    { for i in 19060 8019 12050 21060 22060 23060 22060 12060;do iptables -I 
BareMetalInstanceServices -d 169.254.169.254/32 -p tcp -m tcp --dport $i -m 
comment --comment "Rover service access port" -j ACCEPT;done }

    See Service Ports for a list of available ports.

Unsupported CLI Commands

The following CLI commands are currently not supported. Workarounds are provided where available.

  • Object Storage CLIs: oci os list

    You can only use the oci os list command when you include the --fields option. For example:

    # oci os object list --bucket-name generic-image --fields name,size,timeCreated,md5,etag
{
"data": [
{
"archival-state": null,
"etag": "b2c123ff0f1231c4c7f41ff92294e4a0-32",
"md5": "ssYx/w8SUcTH9B/5IpTkoA==-32",
"name": "exported-image",
"size": 2132357120,
"storage-tier": null,
"time-created": "2022-03-01T19:50:03.076000+00:00",
"time-modified": null
},    {
      "archival-state": null,
      "etag": "fe5e3c12e12e31de65b86722a6fe29e7-32",
      "md5": "/l48AOleMd5luGcipv4p5w==-32",
      "name": "imported-image-20210830-1542_ocid1.image.oc1.iad..uniqueID.oci",
      "size": 2132224000,
      "storage-tier": null,
      "time-created": "2022-03-01T19:50:59.968000+00:00",
      "time-modified": null
    }
  ],
  "prefixes": []
}

  • Compute CLIs: oci compute instance list-vnics

    The oci compute instance list-vnics command lists the VNICs that are attached to the specified instance and is often used to get the public IP for a compute node. This CLI is not currently supported in Roving Edge Infrastructure. You can get VNIC information, including IP address associated with a VNIC attached to a compute node, using any of the following methods:

    • Device Console: Go to the following location:

      Compute > Instances > Instance Details > Attached VNICs

      The IP addresses for the VNICs are listed in the dialog box that appears.

    • CLI: oci compute instance list-vnics

      First, run the following command to list all the VNIC's attachments:

      oci compute vnic-attachment list --instance-id <> --all

      Next, run the following command for the specific VNIC for which you want to get details:

      oci network vnic get --vnic-id <>

      The following example shows these two commands run together with their respective returns:

      # oci compute vnic-attachment list --instance-id ocid1.instance.orei.orei-1..uniqueID --all
{
  "data": [
    {
      "availability-domain": "orei-1-ad-1",
      "compartment-id": "ocid1.tenancy.orei..uniqueID",
      "display-name": null,
      "id": "ocid1.vnicattachment.orei.orei-1..uniqueID",
      "instance-id": "ocid1.instance.orei.orei-1..uniqueID",
      "lifecycle-state": "ATTACHED",
      "nic-index": 0,
      "subnet-id": "ocid1.subnet.orei.orei-1..uniqueID",
      "time-created": "2022-03-01T21:07:00.937000+00:00",
      "vlan-id": null,
      "vlan-tag": 1,
      "vnic-id": "ocid1.vnic.orei.orei-1..uniqueID"
    }
  ]
}

# oci network vnic get --vnic-id ocid1.vnic.orei.orei-1..uniqueID
{
  "data": {
    "availability-domain": "orei-1-ad-1",
    "compartment-id": "ocid1.tenancy.orei..uniqueID",
    "defined-tags": {},
    "display-name": "test-instance",
    "freeform-tags": {},
    "hostname-label": "test-instance",
    "id": "ocid1.vnic.orei.orei-1..uniqueID",
    "is-primary": true,
    "lifecycle-state": "AVAILABLE",
    "mac-address": "02:00:17:00:04:00",
    "nsg-ids": [],
    "private-ip": "10.0.0.2",
    "public-ip": "10.145.142.128",
    "skip-source-dest-check": false,
    "subnet-id": "ocid1.subnet.orei.orei-1..",
    "time-created": "2022-03-01T21:07:00.155000+00:00",
    "vlan-id": null
  },
  "etag": "2c082d1c"
}

      If only one VNIC is attached, you can combine these CLI commands with other Linux tools to limit the output to just the public IP address using the following command:

      oci compute vnic-attachment list --instance-id <> --all|grep -m 1 vnic-id|awk -F'"' '{print $4}'|xargs -I{} oci network vnic get --vnic-id {}|grep public-ip|awk -F'"' '{print $4}'

      For example:

      # oci compute vnic-attachment list --instance-id ocid1.instance.orei.orei-1..uniqueID --all|grep -m 1 vnic-id|awk -F'"' '{print $4}'|xargs -I{} oci network vnic get --vnic-id {}|grep public-ip|awk -F'"' '{print $4}'
10.145.142.128