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**Example 1: To allocate a Dedicated Host**
The following ``allocate-hosts`` example allocates a single Dedicated Host in the ``eu-west-1a`` Availability Zone, onto which you can launch ``m5.large`` instances. By default, the Dedicated Host accepts only target instance launches, and does not support host recovery. ::
aws ec2 allocate-hosts \
--instance-type m5.large \
--availability-zone eu-west-1a \
--quantity 1
Output::
{
"HostIds": [
"h-07879acf49EXAMPLE"
]
}
**Example 2: To allocate a Dedicated Host with auto-placement and host recovery enabled**
The following ``allocate-hosts`` example allocates a single Dedicated Host in the ``eu-west-1a`` Availability Zone with auto-placement and host recovery enabled. ::
aws ec2 allocate-hosts \
--instance-type m5.large \
--availability-zone eu-west-1a \
--auto-placement on \
--host-recovery on \
--quantity 1
Output::
{
"HostIds": [
"h-07879acf49EXAMPLE"
]
}
**Example 3: To allocate a Dedicated Host with tags**
The following ``allocate-hosts`` example allocates a single Dedicated Host and applies a tag with a key named ``purpose`` and a value of ``production``. ::
aws ec2 allocate-hosts \
--instance-type m5.large \
--availability-zone eu-west-1a \
--quantity 1 \
--tag-specifications 'ResourceType=dedicated-host,Tags={Key=purpose,Value=production}'
Output::
{
"HostIds": [
"h-07879acf49EXAMPLE"
]
}
For more information, see `Allocating Dedicated Hosts <https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/how-dedicated-hosts-work.html#dedicated-hosts-allocating>`__ in the *Amazon Elastic Compute Cloud User Guide for Linux Instances*.