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Deprecate Hetzner Cloud server datacenter labels
[hcloud.Server.Datacenter] is deprecated and will be removed after 1 July 2026. Use [hcloud.Server.Location] instead. See https://docs.hetzner.cloud/changelog#2025-12-16-phasing-out-datacenters
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3 files changed

Lines changed: 44 additions & 25 deletions

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‎discovery/hetzner/hcloud.go‎

Lines changed: 34 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -32,21 +32,25 @@ import (
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)
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const (
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hetznerHcloudLabelPrefix = hetznerLabelPrefix + "hcloud_"
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hetznerLabelHcloudImageName = hetznerHcloudLabelPrefix + "image_name"
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hetznerLabelHcloudImageDescription = hetznerHcloudLabelPrefix + "image_description"
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hetznerLabelHcloudImageOSVersion = hetznerHcloudLabelPrefix + "image_os_version"
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hetznerLabelHcloudImageOSFlavor = hetznerHcloudLabelPrefix + "image_os_flavor"
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hetznerLabelHcloudPrivateIPv4 = hetznerHcloudLabelPrefix + "private_ipv4_"
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hetznerHcloudLabelPrefix = hetznerLabelPrefix + "hcloud_"
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hetznerLabelHcloudImageName = hetznerHcloudLabelPrefix + "image_name"
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hetznerLabelHcloudImageDescription = hetznerHcloudLabelPrefix + "image_description"
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hetznerLabelHcloudImageOSVersion = hetznerHcloudLabelPrefix + "image_os_version"
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hetznerLabelHcloudImageOSFlavor = hetznerHcloudLabelPrefix + "image_os_flavor"
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hetznerLabelHcloudPrivateIPv4 = hetznerHcloudLabelPrefix + "private_ipv4_"
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hetznerLabelHcloudLocation = hetznerHcloudLabelPrefix + "location"
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hetznerLabelHcloudNetworkZone = hetznerHcloudLabelPrefix + "network_zone"
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hetznerLabelHcloudCPUCores = hetznerHcloudLabelPrefix + "cpu_cores"
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hetznerLabelHcloudCPUType = hetznerHcloudLabelPrefix + "cpu_type"
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hetznerLabelHcloudMemoryGB = hetznerHcloudLabelPrefix + "memory_size_gb"
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hetznerLabelHcloudDiskGB = hetznerHcloudLabelPrefix + "disk_size_gb"
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hetznerLabelHcloudType = hetznerHcloudLabelPrefix + "server_type"
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hetznerLabelHcloudLabel = hetznerHcloudLabelPrefix + "label_"
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hetznerLabelHcloudLabelPresent = hetznerHcloudLabelPrefix + "labelpresent_"
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// Label names kept for backward compatibility
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hetznerLabelHcloudDatacenterLocation = hetznerHcloudLabelPrefix + "datacenter_location"
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hetznerLabelHcloudDatacenterLocationNetworkZone = hetznerHcloudLabelPrefix + "datacenter_location_network_zone"
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hetznerLabelHcloudCPUCores = hetznerHcloudLabelPrefix + "cpu_cores"
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hetznerLabelHcloudCPUType = hetznerHcloudLabelPrefix + "cpu_type"
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hetznerLabelHcloudMemoryGB = hetznerHcloudLabelPrefix + "memory_size_gb"
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hetznerLabelHcloudDiskGB = hetznerHcloudLabelPrefix + "disk_size_gb"
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hetznerLabelHcloudType = hetznerHcloudLabelPrefix + "server_type"
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hetznerLabelHcloudLabel = hetznerHcloudLabelPrefix + "label_"
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hetznerLabelHcloudLabelPresent = hetznerHcloudLabelPrefix + "labelpresent_"
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)
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// Discovery periodically performs Hetzner Cloud requests. It implements
@@ -98,22 +102,31 @@ func (d *hcloudDiscovery) refresh(ctx context.Context) ([]*targetgroup.Group, er
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hetznerLabelRole: model.LabelValue(HetznerRoleHcloud),
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hetznerLabelServerID: model.LabelValue(strconv.FormatInt(server.ID, 10)),
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hetznerLabelServerName: model.LabelValue(server.Name),
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hetznerLabelDatacenter: model.LabelValue(server.Datacenter.Name),
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hetznerLabelPublicIPv4: model.LabelValue(server.PublicNet.IPv4.IP.String()),
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hetznerLabelPublicIPv6Network: model.LabelValue(server.PublicNet.IPv6.Network.String()),
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hetznerLabelServerStatus: model.LabelValue(server.Status),
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hetznerLabelHcloudDatacenterLocation: model.LabelValue(server.Datacenter.Location.Name),
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hetznerLabelHcloudDatacenterLocationNetworkZone: model.LabelValue(server.Datacenter.Location.NetworkZone),
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hetznerLabelHcloudType: model.LabelValue(server.ServerType.Name),
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hetznerLabelHcloudCPUCores: model.LabelValue(strconv.Itoa(server.ServerType.Cores)),
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hetznerLabelHcloudCPUType: model.LabelValue(server.ServerType.CPUType),
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hetznerLabelHcloudMemoryGB: model.LabelValue(strconv.Itoa(int(server.ServerType.Memory))),
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hetznerLabelHcloudDiskGB: model.LabelValue(strconv.Itoa(server.ServerType.Disk)),
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hetznerLabelHcloudLocation: model.LabelValue(server.Location.Name),
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hetznerLabelHcloudNetworkZone: model.LabelValue(server.Location.NetworkZone),
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hetznerLabelHcloudType: model.LabelValue(server.ServerType.Name),
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hetznerLabelHcloudCPUCores: model.LabelValue(strconv.Itoa(server.ServerType.Cores)),
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hetznerLabelHcloudCPUType: model.LabelValue(server.ServerType.CPUType),
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hetznerLabelHcloudMemoryGB: model.LabelValue(strconv.Itoa(int(server.ServerType.Memory))),
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hetznerLabelHcloudDiskGB: model.LabelValue(strconv.Itoa(server.ServerType.Disk)),
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// Label names kept for backward compatibility
118+
hetznerLabelHcloudDatacenterLocation: model.LabelValue(server.Location.Name),
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hetznerLabelHcloudDatacenterLocationNetworkZone: model.LabelValue(server.Location.NetworkZone),
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model.AddressLabel: model.LabelValue(net.JoinHostPort(server.PublicNet.IPv4.IP.String(), strconv.FormatUint(uint64(d.port), 10))),
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}
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// [hcloud.Server.Datacenter] is deprecated and will be removed after 1 July 2026.
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// See https://docs.hetzner.cloud/changelog#2025-12-16-phasing-out-datacenters
126+
if server.Datacenter != nil { // nolint: staticcheck
127+
labels[hetznerLabelDatacenter] = model.LabelValue(server.Datacenter.Name) // nolint: staticcheck
128+
}
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117130
if server.Image != nil {
118131
labels[hetznerLabelHcloudImageName] = model.LabelValue(server.Image.Name)
119132
labels[hetznerLabelHcloudImageDescription] = model.LabelValue(server.Image.Description)

‎docs/configuration/configuration.md‎

Lines changed: 9 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1908,16 +1908,21 @@ The following meta labels are available on all targets during [relabeling](#rela
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* `__meta_hetzner_server_status`: the status of the server
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* `__meta_hetzner_public_ipv4`: the public ipv4 address of the server
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* `__meta_hetzner_public_ipv6_network`: the public ipv6 network (/64) of the server
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* `__meta_hetzner_datacenter`: the datacenter of the server
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Note that the `__meta_hetzner_datacenter` label is deprecated for the `hcloud` `role`, and
1913+
will be removed after 1 July 2026. For more details, see the
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[changelog](https://docs.hetzner.cloud/changelog#2025-12-16-phasing-out-datacenters).
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19131916
The labels below are only available for targets with `role` set to `hcloud`:
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19151918
* `__meta_hetzner_hcloud_image_name`: the image name of the server
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* `__meta_hetzner_hcloud_image_description`: the description of the server image
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* `__meta_hetzner_hcloud_image_os_flavor`: the OS flavor of the server image
19181921
* `__meta_hetzner_hcloud_image_os_version`: the OS version of the server image
1919-
* `__meta_hetzner_hcloud_datacenter_location`: the location of the server
1920-
* `__meta_hetzner_hcloud_datacenter_location_network_zone`: the network zone of the server
1922+
* `__meta_hetzner_hcloud_location`: the location of the server
1923+
* `__meta_hetzner_hcloud_network_zone`: the network zone of the server
1924+
* `__meta_hetzner_hcloud_datacenter_location`: the location of the server (deprecated in favor of `__meta_hetzner_hcloud_location`)
1925+
* `__meta_hetzner_hcloud_datacenter_location_network_zone`: the network zone of the server (deprecated in favor of `__meta_hetzner_hcloud_network_zone`)
19211926
* `__meta_hetzner_hcloud_server_type`: the type of the server
19221927
* `__meta_hetzner_hcloud_cpu_cores`: the CPU cores count of the server
19231928
* `__meta_hetzner_hcloud_cpu_type`: the CPU type of the server (shared or dedicated)
@@ -1929,6 +1934,7 @@ The labels below are only available for targets with `role` set to `hcloud`:
19291934

19301935
The labels below are only available for targets with `role` set to `robot`:
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1937+
* `__meta_hetzner_datacenter`: the datacenter of the server
19321938
* `__meta_hetzner_robot_product`: the product of the server
19331939
* `__meta_hetzner_robot_cancelled`: the server cancellation status
19341940

‎go.mod‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -40,7 +40,7 @@ require (
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github.com/grafana/regexp v0.0.0-20250905093917-f7b3be9d1853
4141
github.com/hashicorp/consul/api v1.32.1
4242
github.com/hashicorp/nomad/api v0.0.0-20251222083347-1355d4cb1671
43-
github.com/hetznercloud/hcloud-go/v2 v2.32.0
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github.com/hetznercloud/hcloud-go/v2 v2.33.0
4444
github.com/ionos-cloud/sdk-go/v6 v6.3.6
4545
github.com/json-iterator/go v1.1.12
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github.com/klauspost/compress v1.18.2

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