Wednesday, 20 June 2018

Using CFDOT (CF Diego Operator Toolkit) on Pivotal Cloud Foundry

I decided to use CFDOT (CF Diego Operator Toolkit) on my PCF 2.1 vSphere ENV today. Setting it up isn't required as it's installed out of the box on Bosh Managed Diego Cell as shown below. It gives nice detailed information around Cell Capacity and other useful metrics.

1. SSH into Ops Manager VM

pasapicella@pas-macbook:~/pivotal/PCF/APJ/PEZ-HaaS/haas-165$ ssh ubuntu@opsmgr.haas-165.mydns.com
Unauthorized use is strictly prohibited. All access and activity
is subject to logging and monitoring.
ubuntu@opsmgr.haas-165.mydns.com's password:
Welcome to Ubuntu 14.04.5 LTS (GNU/Linux 4.4.0-124-generic x86_64)

 * Documentation:  https://help.ubuntu.com/

...

ubuntu@bosh-stemcell:~$

At this point you will need to log into the Bosh Director as described below


2. Issue a command as follows once logged in to get all VM's. We just need a name of one of the Diego CELL VM's

ubuntu@bosh-stemcell:~$ bosh -e vmware vms --column=Instance --column="Process State"
Using environment '1.1.1.1' as user 'director' (bosh.*.read, openid, bosh.*.admin, bosh.read, bosh.admin)

Task 12086
Task 12087
Task 12086 done

Task 12087 done

Deployment 'cf-edc48fe108f1e5581fba'

Instance                                                            Process State
backup-prepare/eff97a4b-15a2-425c-8333-1dbaaefbb5ff                 running
clock_global/d77c485f-7d7c-43ae-b9de-584411ffa0bd                   running
cloud_controller/874dd06c-b76e-427a-943e-dea66f0345b6               running
cloud_controller/bba1819e-b7f4-4a34-897a-c78f6189667c               running
cloud_controller_worker/803bfb3f-653b-4311-b831-9b76e602714e        running
cloud_controller_worker/f5956edb-9510-4d99-a0f7-8545831b45ec        running
consul_server/3bfdc6bd-2f1d-4607-8564-148fadd4bc3d                  running
consul_server/4927cc4b-4531-429b-b379-83e283b779ba                  running
consul_server/69c1c5ee-8288-49bd-9112-afe05fe536f4                  running
diego_brain/01d3914c-2ab1-4b75-ada7-2267f34faee6                    running
diego_brain/564cf558-c2dc-4045-a4d1-54f633633dd6                    running
diego_brain/a22c2621-4278-4a83-94ee-34287deb9310                    running
diego_cell/7ca12f7d-737f-47fb-a8bc-91d73e4791cf                     running
diego_cell/9452a3b4-d40c-49f1-9dbf-8d74202f7dff                     running
diego_cell/dfc8e214-2e59-4050-9312-1113662ce79f                     running

...

3. SSH into a Bosh managed Diego Cell VM. Use the correct name for one of your Diego Cells and your deployment name for CF itself

ubuntu@bosh-stemcell:~$ bosh -e vmware -d cf-edc48fe108f1e5581fba ssh diego_cell/7ca12f7d-737f-47fb-a8bc-91d73e4791cf
Using environment '1.1.1.1' as user 'director' (bosh.*.read, openid, bosh.*.admin, bosh.read, bosh.admin)

Using deployment 'cf-edc48fe108f1e5581fba'

....

4. Run a command as follows "sudo su -"

diego_cell/7ca12f7d-737f-47fb-a8bc-91d73e4791cf:~$ sudo su -

5. Verify CFDOT CLI is installed using "cfdot"

diego_cell/7ca12f7d-737f-47fb-a8bc-91d73e4791cf:~# cfdot
A command-line tool to interact with a Cloud Foundry Diego deployment

Usage:
  cfdot [command]

Available Commands:
  actual-lrp-groups            List actual LRP groups
  actual-lrp-groups-for-guid   List actual LRP groups for a process guid
  cancel-task                  Cancel task
  cell                         Show the specified cell presence
  cell-state                   Show the specified cell state
  cell-states                  Show cell states for all cells
  cells                        List registered cell presences
  claim-lock                   Claim Locket lock
  claim-presence               Claim Locket presence
  create-desired-lrp           Create a desired LRP
  create-task                  Create a Task
  delete-desired-lrp           Delete a desired LRP
  delete-task                  Delete a Task
  desired-lrp                  Show the specified desired LRP
  desired-lrp-scheduling-infos List desired LRP scheduling infos
  desired-lrps                 List desired LRPs
  domains                      List domains
  help                         Get help on [command]
  locks                        List Locket locks
  lrp-events                   Subscribe to BBS LRP events
  presences                    List Locket presences
  release-lock                 Release Locket lock
  retire-actual-lrp            Retire actual LRP by index and process guid
  set-domain                   Set domain
  task                         Display task
  task-events                  Subscribe to BBS Task events
  tasks                        List tasks in BBS
  update-desired-lrp           Update a desired LRP

Flags:
  -h, --help   help for cfdot

Use "cfdot [command] --help" for more information about a command.

6. Lets see what each Diego CELL has for Capacity as a whole

diego_cell/7ca12f7d-737f-47fb-a8bc-91d73e4791cf:~# cfdot cells | jq -r
{
  "cell_id": "7ca12f7d-737f-47fb-a8bc-91d73e4791cf",
  "rep_address": "http://10.193.229.62:1800",
  "zone": "RP01",
  "capacity": {
    "memory_mb": 16047,
    "disk_mb": 103549,
    "containers": 249
  },
  "rootfs_provider_list": [
    {
      "name": "preloaded",
      "properties": [
        "cflinuxfs2"
      ]
    },
    {
      "name": "preloaded+layer",
      "properties": [
        "cflinuxfs2"
      ]
    },
    {
      "name": "docker"
    }
  ],
  "rep_url": "https://7ca12f7d-737f-47fb-a8bc-91d73e4791cf.cell.service.cf.internal:1801"
}
{
  "cell_id": "9452a3b4-d40c-49f1-9dbf-8d74202f7dff",
  "rep_address": "http://10.193.229.61:1800",
  "zone": "RP01",
  "capacity": {
    "memory_mb": 16047,
    "disk_mb": 103549,
    "containers": 249
  },
  "rootfs_provider_list": [
    {
      "name": "preloaded",
      "properties": [
        "cflinuxfs2"
      ]
    },
    {
      "name": "preloaded+layer",
      "properties": [
        "cflinuxfs2"
      ]
    },
    {
      "name": "docker"
    }
  ],
  "rep_url": "https://9452a3b4-d40c-49f1-9dbf-8d74202f7dff.cell.service.cf.internal:1801"
}
{
  "cell_id": "dfc8e214-2e59-4050-9312-1113662ce79f",
  "rep_address": "http://10.193.229.63:1800",
  "zone": "RP01",
  "capacity": {
    "memory_mb": 16047,
    "disk_mb": 103549,
    "containers": 249
  },
  "rootfs_provider_list": [
    {
      "name": "preloaded",
      "properties": [
        "cflinuxfs2"
      ]
    },
    {
      "name": "preloaded+layer",
      "properties": [
        "cflinuxfs2"
      ]
    },
    {
      "name": "docker"
    }
  ],
  "rep_url": "https://dfc8e214-2e59-4050-9312-1113662ce79f.cell.service.cf.internal:1801"
}

7. Finally lets see what available resources we have on each Diego Cell

diego_cell/7ca12f7d-737f-47fb-a8bc-91d73e4791cf:~# cfdot cell-states | jq '"Cell Id -> \(.cell_id): L -> \(.LRPs | length), Avaliable Resources [MemoryMB] -> \(.AvailableResources.MemoryMB), Avaliable Resources [DiskMB] -> \(.AvailableResources.DiskMB), Avaliable Resources [Containers] -> \(.AvailableResources.Containers)"' -r

Cell Id -> 7ca12f7d-737f-47fb-a8bc-91d73e4791cf: L -> 17, Avaliable Resources [MemoryMB] -> 6843, Avaliable Resources [DiskMB] -> 86141, Avaliable Resources [Containers] -> 232
Cell Id -> 9452a3b4-d40c-49f1-9dbf-8d74202f7dff: L -> 14, Avaliable Resources [MemoryMB] -> 5371, Avaliable Resources [DiskMB] -> 89213, Avaliable Resources [Containers] -> 235
Cell Id -> dfc8e214-2e59-4050-9312-1113662ce79f: L -> 14, Avaliable Resources [MemoryMB] -> 4015, Avaliable Resources [DiskMB] -> 89213, Avaliable Resources [Containers] -> 235

More Information

https://github.com/cloudfoundry/cfdot


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