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VMWare VCenter Exporter for Prometheus

Project description

# vmware_exporter

VMware vCenter Exporter for Prometheus.

Get VMware vCenter information:
- Basic VM and Host metrics
- Current number of active snapshots
- Datastore size and other stuff
- Snapshot Unix timestamp creation date

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## Usage

- Install with `$ python setup.py install` or via pip `$ pip install vmware_exporter`. The docker command below is preferred.
- Create `config.yml` based on the configuration section. Some variables can be passed as environment variables
- Run `$ vmware_exporter -c /path/to/your/config`
- Go to http://localhost:9272/metrics?vsphere_host=vcenter.company.com to see metrics

Alternatively, if you don't wish to install the package, run it using `$ vmware_exporter/vmware_exporter.py` or use the following docker command:

```
docker run -it --rm -p 9272:9272 -e VSPHERE_USER=${VSPHERE_USERNAME} -e VSPHERE_PASSWORD=${VSPHERE_PASSWORD} -e VSPHERE_HOST=${VSPHERE_HOST} -e VSPHERE_IGNORE_SSL=True --name vmware_exporter pryorda/vmware_exporter
```

### Configuration and limiting data collection

Only provide a configuration file if enviroment variables are not used. If you do plan to use a configuration file, be sure to override the container entrypoint or add -c config.yml to the command arguments.

If you want to limit the scope of the metrics gathered, you can update the subsystem under `collect_only` in the config section, e.g. under `default`, or by using the environment variables:

collect_only:
vms: False
vmguests: True
datastores: True
hosts: True
snapshots: True

This would only connect datastores and hosts.

You can have multiple sections for different hosts and the configuration would look like:
```
default:
vsphere_host: "vcenter"
vsphere_user: "user"
vsphere_password: "password"
ignore_ssl: False
collect_only:
vms: True
vmguests: True
datastores: True
hosts: True
snapshots: True

esx:
vsphere_host: vc.example2.com
vsphere_user: 'root'
vsphere_password: 'password'
ignore_ssl: True
collect_only:
vms: False
vmguests: True
datastores: False
hosts: True
snapshots: True

limited:
vsphere_host: slowvc.example.com
vsphere_user: 'administrator@vsphere.local'
vsphere_password: 'password'
ignore_ssl: True
collect_only:
vms: False
vmguests: False
datastores: True
hosts: False
snapshots: False

```
Switching sections can be done by adding ?section=limited to the URL.

#### Environment Variables
| Variable | Precedence | Defaults | Description |
| ---------------------------- | ---------------------- | -------- | --------------------------------------- |
| `VSPHERE_HOST` | config, env, get_param | n/a | vsphere server to connect to |
| `VSPHERE_USER` | config, env | n/a | User for connecting to vsphere |
| `VSPHERE_PASSWORD` | config, env | n/a | Password for connecting to vsphere |
| `VSPHERE_IGNORE_SSL` | config, env | False | Ignore the ssl cert on the connection to vsphere host |
| `VSPHERE_COLLECT_HOSTS` | config, env | True | Set to false to disable collection of host metrics |
| `VSPHERE_COLLECT_DATASTORES` | config, env | True | Set to false to disable collection of datastore metrics |
| `VSPHERE_COLLECT_VMS` | config, env | True | Set to false to disable collection of virtual machine metrics |
| `VSPHERE_COLLECT_VMGUESTS` | config, env | True | Set to false to disable collection of virtual machine guest metrics |
| `VSPHERE_COLLECT_SNAPSHOTS` | config, env | True | Set to false to disable collection of snapshot metrics |

You can create new sections as well, with very similiar variables. For example, to create a `limited` section you can set:

| Variable | Precedence | Defaults | Description |
| ---------------------------- | ---------------------- | -------- | --------------------------------------- |
| `VSPHERE_LIMITED_HOST` | config, env, get_param | n/a | vsphere server to connect to |
| `VSPHERE_LIMITED_USER` | config, env | n/a | User for connecting to vsphere |
| `VSPHERE_LIMITED_PASSWORD` | config, env | n/a | Password for connecting to vsphere |
| `VSPHERE_LIMITED_IGNORE_SSL` | config, env | False | Ignore the ssl cert on the connection to vsphere host |
| `VSPHERE_LIMITED_COLLECT_HOSTS` | config, env | True | Set to false to disable collection of host metrics |
| `VSPHERE_LIMITED_COLLECT_DATASTORES` | config, env | True | Set to false to disable collection of datastore metrics |
| `VSPHERE_LIMITED_COLLECT_VMS` | config, env | True | Set to false to disable collection of virtual machine metrics |
| `VSPHERE_LIMITED_COLLECT_VMGUESTS` | config, env | True | Set to false to disable collection of virtual machine guest metrics |
| `VSPHERE_LIMITED_COLLECT_SNAPSHOTS` | config, env | True | Set to false to disable collection of snapshot metrics |

You need to set at least `VSPHERE_SECTIONNAME_USER` for the section to be detected.

### Prometheus configuration

You can use the following parameters in the Prometheus configuration file. The `params` section is used to manage multiple login/passwords.

```
- job_name: 'vmware_vcenter'
metrics_path: '/metrics'
static_configs:
- targets:
- 'vcenter.company.com
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: localhost:9272

- job_name: 'vmware_esx'
metrics_path: '/metrics'
file_sd_configs:
- files:
- /etc/prometheus/esx.yml
params:
section: [esx]
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: localhost:9272

# Example of Multiple vCenter usage per #23

- job_name: vmware_export
metrics_path: /metrics
static_configs:
- targets:
- vcenter01
- vcenter02
- vcenter03
relabel_configs:
- source_labels: [__address__]
target_label: __param_target
- source_labels: [__param_target]
target_label: instance
- target_label: __address__
replacement: exporter_ip:9272
```

## Current Status

- vCenter and vSphere 6.0/6.5 have been tested.
- VM information, Snapshot, Host and Datastore basic information is exported, i.e:
```
# HELP vmware_snapshots VMware current number of existing snapshots
# TYPE vmware_snapshot_count gauge
vmware_snapshot_timestamp_seconds{vm_name="My Super Virtual Machine"} 2.0
# HELP vmware_snapshot_timestamp_seconds VMware Snapshot creation time in seconds
# TYPE vmware_snapshot_timestamp_seconds gauge
vmware_snapshot_age{vm_name="My Super Virtual Machine",vm_snapshot_name="Very old snaphot"} 1478146956.96092
vmware_snapshot_age{vm_name="My Super Virtual Machine",vm_snapshot_name="Old snapshot"} 1478470046.975632

# HELP vmware_datastore_capacity_size VMware Datastore capacity in bytes
# TYPE vmware_datastore_capacity_size gauge
vmware_datastore_capacity_size{ds_name="ESX1-LOCAL"} 67377299456.0
# HELP vmware_datastore_freespace_size VMware Datastore freespace in bytes
# TYPE vmware_datastore_freespace_size gauge
vmware_datastore_freespace_size{ds_name="ESX1-LOCAL"} 66349694976.0
# HELP vmware_datastore_uncommited_size VMware Datastore uncommitted in bytes
# TYPE vmware_datastore_uncommited_size gauge
vmware_datastore_uncommited_size{ds_name="ESX1-LOCAL"} 0.0
# HELP vmware_datastore_provisoned_size VMware Datastore provisoned in bytes
# TYPE vmware_datastore_provisoned_size gauge
vmware_datastore_provisoned_size{ds_name="ESX1-LOCAL"} 1027604480.0
# HELP vmware_datastore_hosts VMware Hosts number using this datastore
# TYPE vmware_datastore_hosts gauge
vmware_datastore_hosts{ds_name="ESX1-LOCAL"} 1.0
# HELP vmware_datastore_vms VMware Virtual Machines number using this datastore
# TYPE vmware_datastore_vms gauge
vmware_datastore_vms{ds_name="ESX1-LOCAL"} 0.0

# HELP vmware_host_power_state VMware Host Power state (On / Off)
# TYPE vmware_host_power_state gauge
vmware_host_power_state{host_name="esx1.company.com"} 1.0
# HELP vmware_host_cpu_usage VMware Host CPU usage in MHz
# TYPE vmware_host_cpu_usage gauge
vmware_host_cpu_usage{host_name="esx1.company.com"} 2959.0
# HELP vmware_host_cpu_max VMware Host CPU max availability in MHz
# TYPE vmware_host_cpu_max gauge
vmware_host_cpu_max{host_name="esx1.company.com"} 28728.0
# HELP vmware_host_memory_usage VMware Host Memory usage in Mbytes
# TYPE vmware_host_memory_usage gauge
vmware_host_memory_usage{host_name="esx1.company.com"} 107164.0
# HELP vmware_host_memory_max VMware Host Memory Max availability in Mbytes
# TYPE vmware_host_memory_max gauge
vmware_host_memory_max{host_name="esx1.company.com"} 131059.01953125
```

## References

The VMware exporter uses theses libraries:
- [pyVmomi](https://github.com/vmware/pyvmomi) for VMware connection
- Prometheus [client_python](https://github.com/prometheus/client_python) for Prometheus supervision
- [Twisted](http://twistedmatrix.com/trac/) for HTTP server

The initial code is mainly inspired by:
- https://www.robustperception.io/writing-a-jenkins-exporter-in-python/
- https://github.com/vmware/pyvmomi-community-samples
- https://github.com/jbidinger/pyvmomi-tools

Forked from https://github.com/rverchere/vmware_exporter. I removed the fork so that I could do searching and everything.

## Maintainer

Daniel Pryor [pryorda](https://github.com/pryorda)

## License

See LICENSE file


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