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# Windows-specific Container Configuration
This document describes the schema for the [Windows-specific section](config.md#platform-specific-configuration) of the [container configuration](config.md).
The Windows container specification uses APIs provided by the Windows Host Compute Service (HCS) to fulfill the spec.
## Resources
You can configure a container's resource limits via the OPTIONAL `resources` field of the Windows configuration.
### Memory
`memory` is an OPTIONAL configuration for the container's memory usage.
The following parameters can be specified:
* **`limit`** *(uint64, OPTIONAL)* - sets limit of memory usage in bytes.
* **`reservation`** *(uint64, OPTIONAL)* - sets the guaranteed minimum amount of memory for a container in bytes.
#### Example
```json
"windows": {
"resources": {
"memory": {
"limit": 2097152,
"reservation": 524288
}
}
}
```
### CPU
`cpu` is an OPTIONAL configuration for the container's CPU usage.
The following parameters can be specified:
* **`count`** *(uint64, OPTIONAL)* - specifies the number of CPUs available to the container.
* **`shares`** *(uint16, OPTIONAL)* - specifies the relative weight to other containers with CPU shares. The range is from 1 to 10000.
* **`percent`** *(uint, OPTIONAL)* - specifies the percentage of available CPUs usable by the container.
#### Example
```json
"windows": {
"resources": {
"cpu": {
"percent": 50
}
}
}
```
### Storage
`storage` is an OPTIONAL configuration for the container's storage usage.
The following parameters can be specified:
* **`iops`** *(uint64, OPTIONAL)* - specifies the maximum IO operations per second for the system drive of the container.
* **`bps`** *(uint64, OPTIONAL)* - specifies the maximum bytes per second for the system drive of the container.
* **`sandboxSize`** *(uint64, OPTIONAL)* - specifies the minimum size of the system drive in bytes.
#### Example
```json
"windows": {
"resources": {
"storage": {
"iops": 50
}
}
}
```
### Network
`network` is an OPTIONAL configuration for the container's network usage.
The following parameters can be specified:
* **`egressBandwidth`** *(uint64, OPTIONAL)* - specified the maximum egress bandwidth in bytes per second for the container.
#### Example
```json
"windows": {
"resources": {
"network": {
"egressBandwidth": 1048577
}
}
}
```
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