A few example govmomi scripts, mostly involving how to connect to vSphere and retrieve some infrastructure information. I've tried to add as many comment to the code as possible as there is not a lot of documentation on how to code govmomi. There are some other examples here.
For first time use, run the following:
% go mod init
% go build <Filename>.go
% go run <Filename>.goYou may need to pull some go modules imported, e.g. for Kubernetes, you may need client-go:
% export GO111MODULE=on
% go get k8s.io/client-go@masterFor subsequent runs, once the modules/imports are local, simply run:
% go run <Filename>.goNotes on running "go build"
The examples show the different ways to connect to vSphere:
- via URL
- via environment variables
The other modules show how to connect and retrieve various vSphere information, e.g.
- Datacenter
- Cluster
- Hosts
- Datastores
- Virtual Machines (VMs)
- First Class Disks (FCDs) - used to back Kubernetes Persistent Volumes
Finally we have two modules that use a combinatation of vSphere and Kubernetes Code modules:
- Return K8s nodes running on a vSphere infrastructure
- Return PCI devices on an ESXi device host where a Kubernetes node/VM runs
Here are some example outputs, assuming the required vSphere environment variables have been set appropriately in the shell.
$ go run conn-to-v-via-e-find-ho-ds-vm.go
DEBUG: vc is vcsa-06.rainpole.com/sdk
DEBUG: user is administrator@vsphere.local
DEBUG: password is *********
Log in successful
*** Host Information ***
------------------------
Name: Used CPU: Total CPU: Free CPU: Used Memory: Total Memory: Free Memory:
esxi-dell-h.rainpole.com 1615 43980 42365 48.9GB 127.9GB 84821704704
esxi-dell-f.rainpole.com 3832 43980 40148 58.8GB 127.9GB 74196484096
esxi-dell-e.rainpole.com 4521 43980 39459 53.5GB 127.9GB 79893397504
esxi-dell-g.rainpole.com 1496 43980 42484 43.3GB 127.9GB 90875133952
vcsa06-witness-01.rainpole.com 19 4400 4381 1.3GB 16.0GB 15764742144
*** Datastore Information ***
------------------------------
Name: Type: Capacity: Free:
PureVMFSDatastore VMFS 500.0TB 499.9TB
isilon-01 NFS 50.5TB 46.3TB
vsanDatastore vsan 5.8TB 5.0TB
*** VM Information ***
-----------------------
Name: Guest Full Name:
SupervisorControlPlaneVM (1): Other 3.x Linux (64-bit)
vSAN File Service Node (8): Other 3.x or later Linux (64-bit)
haproxy: Other 3.x or later Linux (64-bit)
vCLS (8): Other 3.x or later Linux (64-bit)
pfsense-virt-route-70-51: Other Linux (64-bit)
photon-3-haproxy-v1.2.4+vmware.1: VMware Photon OS (64-bit)
Ubuntu1804Template: Ubuntu Linux (64-bit)
photon-3-kube-v1.18.6+vmware.1: VMware Photon OS (64-bit)
pfsense-virt-route-70-32: Other Linux (64-bit)
vCLS (10): Other 3.x or later Linux (64-bit)
tkg-cluster-1-18-5b-workers-kc5xn-dd68c4685-c24l7: VMware Photon OS (64-bit)
tkg-cluster-1-18-5b-control-plane-4f8rq: VMware Photon OS (64-bit)
SupervisorControlPlaneVM (3): Other 3.x Linux (64-bit)
vSAN File Service Node (1): Other 3.x or later Linux (64-bit)
ubuntu-desktop: Ubuntu Linux (64-bit)
SupervisorControlPlaneVM (2): Other 3.x Linux (64-bit)
tkg-cluster-1-18-5b-workers-kc5xn-dd68c4685-7rgkk: VMware Photon OS (64-bit)
vSAN File Service Node (3): Other 3.x or later Linux (64-bit)
tkg-cluster-1-18-5b-control-plane-t59gq: VMware Photon OS (64-bit)
haproxy-62: Other 3.x or later Linux (64-bit)
vCLS (9): Other 3.x or later Linux (64-bit)
tkg-cluster-1-18-5b-control-plane-gh2kt: VMware Photon OS (64-bit)
elaine-vm: Ubuntu Linux (64-bit)
vSAN File Service Node (5): Other 3.x or later Linux (64-bit)
tkg-cluster-1-18-5b-workers-kc5xn-dd68c4685-5v298: VMware Photon OS (64-bit)$ go run conn-to-v-via-e-find-fcd.go
DEBUG: vc is vcsa-06.rainpole.com/sdk
DEBUG: user is administrator@vsphere.local
DEBUG: password is ************
Log in successful (govmomi)
Found default datacenter: Datacenter:datacenter-3 @ /OCTO-Datacenter
Got datastore, number of datastore(s) is : 3
Found host: Datastore:datastore-11 @ /OCTO-Datacenter/datastore/PureVMFSDatastore
Found host: Datastore:datastore-38 @ /OCTO-Datacenter/datastore/isilon-01
Found host: Datastore:datastore-33 @ /OCTO-Datacenter/datastore/vsanDatastore
Datastores found: 3
Found Datastore: PureVMFSDatastore
Found Datastore: isilon-01
Found Datastore: vsanDatastore
Log in successful (vim25)
List of FCDs on datastore: PureVMFSDatastore
Found FCD Id: b7698784-1f52-4ae0-a8b6-ba88838e3513
FCD Name : pvc-65a6b9c4-844e-4552-90dc-495168d745fc
FCD Creation Time : 2020-06-11 12:48:05.575642 +0000 UTC
FCD Size (MB) : 4769
FCD Consumption Type : [disk]
FCD Datastore Type : Datastore
FCD Datastore Info : datastore-11
FCD FilePath : [PureVMFSDatastore] fcd/96c4df4d2f9a429ebb062f94b4ac3d21.vmdk
FCD Backing Object Id :
FCD Delta Size (MB) : 0
List of FCDs on datastore: isilon-01
List of FCDs on datastore: vsanDatastore
Found FCD Id: 19db43c4-1713-453c-a1f0-e1d6482b60d4
FCD Name : pvc-e3f6dd59-cbc0-49a7-97c8-d92a26732c43
FCD Creation Time : 2020-10-23 13:08:53.401297 +0000 UTC
FCD Size (MB) : 1024
FCD Consumption Type : [disk]
FCD Datastore Type : Datastore
FCD Datastore Info : datastore-33
FCD FilePath : [vsanDatastore] 038f6b5f-8122-d3af-eabe-246e962c240c/b39bcacc6ff143439f9cd6b7454999e4.vmdk
FCD Backing Object Id : e5d5925f-fff6-9e09-0b30-246e962f4854
FCD Delta Size (MB) : 0
Found FCD Id: 19e07b27-e02c-4366-bb1d-772fe3c9a4f3
FCD Name : pvc-27197aab-9c6b-4cb7-b4a6-dba4a3b3429d
FCD Creation Time : 2020-10-23 13:10:15.922917 +0000 UTC
FCD Size (MB) : 1024
FCD Consumption Type : [disk]
FCD Datastore Type : Datastore
FCD Datastore Info : datastore-33
FCD FilePath : [vsanDatastore] 038f6b5f-8122-d3af-eabe-246e962c240c/784d461b95bf43bd9f69177ba9813ac5.vmdk
FCD Backing Object Id : 37d6925f-765c-7317-e507-246e962f5274
FCD Delta Size (MB) : 0
Found FCD Id: 499eee6a-ee1a-4793-9ffa-3d9a1c2518a9
FCD Name : pvc-b2cdfd8f-24bc-487b-ad02-a749d985c19b
FCD Creation Time : 2020-10-13 14:14:05.747654 +0000 UTC
FCD Size (MB) : 1024
FCD Consumption Type : [disk]
FCD Datastore Type : Datastore
FCD Datastore Info : datastore-33
FCD FilePath : [vsanDatastore] 038f6b5f-8122-d3af-eabe-246e962c240c/efbb39583d25442b8d964216adbcbf2a.vmdk
FCD Backing Object Id : 2db6855f-13f0-ffec-1912-246e962f4854
FCD Delta Size (MB) : 0
Found FCD Id: c8fbb21f-c380-4bf5-af24-699b0ef4665c
FCD Name : pvc-73752334-c3c0-4be2-9eb8-2192c1197a6b
FCD Creation Time : 2020-12-14 14:38:53.601105 +0000 UTC
FCD Size (MB) : 1024
FCD Consumption Type : [disk]
FCD Datastore Type : Datastore
FCD Datastore Info : datastore-33
FCD FilePath : [vsanDatastore] fc78d75f-dd14-9bce-9e2f-246e962f4854/a3277e06b1094ddf959515e7835345a6.vmdk
FCD Backing Object Id : fd78d75f-38bf-154d-1bfd-246e962f4854
FCD Delta Size (MB) : 0
Found FCD Id: c9e2c645-0117-4ac0-9a18-8f3fdd4e838b
FCD Name : pvc-57a4d167-a5aa-47a0-9852-108d65338ad1
FCD Creation Time : 2020-10-23 13:07:33.602157 +0000 UTC
FCD Size (MB) : 1024
FCD Consumption Type : [disk]
FCD Datastore Type : Datastore
FCD Datastore Info : datastore-33
FCD FilePath : [vsanDatastore] 038f6b5f-8122-d3af-eabe-246e962c240c/fc8b344c69d244988368fa9a173de44e.vmdk
FCD Backing Object Id : 95d5925f-b256-186a-cd15-246e962c240c
FCD Delta Size (MB) : 0