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Add taggedAddress to the labels in ConsulSD (#5001)

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Useful when multiple (tagged) addresses for a node are exposed on the catalog API
Ref. https://www.consul.io/api/catalog.html#taggedaddresses

Signed-off-by: Samuel Alfageme <samuel@alfage.me>
This commit is contained in:
Samuel Alfageme 2018-12-18 11:51:05 +01:00 committed by Simon Pasquier
parent fbadd88ba5
commit 240321acee
3 changed files with 13 additions and 3 deletions
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14
discovery/consul/consul.go
View file

@ -55,6 +55,8 @@ const (
servicePortLabel = model.MetaLabelPrefix + "consul_service_port"
// datacenterLabel is the name of the label containing the datacenter ID.
datacenterLabel = model.MetaLabelPrefix + "consul_dc"
// taggedAddressesLabel is the prefix for the labels mapping to a target's tagged addresses.
taggedAddressesLabel = model.MetaLabelPrefix + "consul_tagged_address_"
// serviceIDLabel is the name of the label containing the service ID.
serviceIDLabel = model.MetaLabelPrefix + "consul_service_id"
@ -487,7 +489,7 @@ func (srv *consulService) watch(ctx context.Context, ch chan<- []*targetgroup.Gr
var tags = srv.tagSeparator + strings.Join(node.ServiceTags, srv.tagSeparator) + srv.tagSeparator
// If the service address is not empty it should be used instead of the node address
// since the service may be registered remotely through a different node
// since the service may be registered remotely through a different node.
var addr string
if node.ServiceAddress != "" {
addr = net.JoinHostPort(node.ServiceAddress, fmt.Sprintf("%d", node.ServicePort))
@ -505,18 +507,24 @@ func (srv *consulService) watch(ctx context.Context, ch chan<- []*targetgroup.Gr
serviceIDLabel: model.LabelValue(node.ServiceID),
}
// Add all key/value pairs from the node's metadata as their own labels
// Add all key/value pairs from the node's metadata as their own labels.
for k, v := range node.NodeMeta {
name := strutil.SanitizeLabelName(k)
labels[metaDataLabel+model.LabelName(name)] = model.LabelValue(v)
}
// Add all key/value pairs from the service's metadata as their own labels
// Add all key/value pairs from the service's metadata as their own labels.
for k, v := range node.ServiceMeta {
name := strutil.SanitizeLabelName(k)
labels[serviceMetaDataLabel+model.LabelName(name)] = model.LabelValue(v)
}
// Add all key/value pairs from the service's tagged addresses as their own labels.
for k, v := range node.TaggedAddresses {
name := strutil.SanitizeLabelName(k)
labels[taggedAddressesLabel+model.LabelName(name)] = model.LabelValue(v)
}
tgroup.Targets = append(tgroup.Targets, labels)
}

1
discovery/consul/consul_test.go
View file

@ -87,6 +87,7 @@ const (
"Node": "node1",
"Address": "1.1.1.1",
"Datacenter": "test-dc",
"TaggedAddresses": {"lan":"192.168.10.10","wan":"10.0.10.10"},
"NodeMeta": {"rack_name": "2304"},
"ServiceID": "test",
"ServiceName": "test",

1
docs/configuration/configuration.md
View file

@ -300,6 +300,7 @@ The following meta labels are available on targets during [relabeling](#relabel_
* `__meta_consul_address`: the address of the target
* `__meta_consul_dc`: the datacenter name for the target
* `__meta_consul_tagged_address_<key>`: each node tagged address key value of the target
* `__meta_consul_metadata_<key>`: each node metadata key value of the target
* `__meta_consul_node`: the node name defined for the target
* `__meta_consul_service_address`: the service address of the target