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add support for consul's node metadata

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This commit is contained in:
Joe Martin 2017-07-18 16:46:16 -04:00
parent 7f2402085a
commit aba41c7d0f
1 changed files with 13 additions and 2 deletions
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15
discovery/consul/consul.go
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@ -27,6 +27,7 @@ import (
"github.com/prometheus/common/model" "github.com/prometheus/common/model"
"github.com/prometheus/prometheus/config" "github.com/prometheus/prometheus/config"
"github.com/prometheus/prometheus/util/httputil" "github.com/prometheus/prometheus/util/httputil"
"github.com/prometheus/prometheus/util/strutil"
"golang.org/x/net/context" "golang.org/x/net/context"
) )
@ -38,6 +39,8 @@ const (
addressLabel = model.MetaLabelPrefix + "consul_address" addressLabel = model.MetaLabelPrefix + "consul_address"
// nodeLabel is the name for the label containing a target's node name. // nodeLabel is the name for the label containing a target's node name.
nodeLabel = model.MetaLabelPrefix + "consul_node" nodeLabel = model.MetaLabelPrefix + "consul_node"
// metaDataLabel is the prefix for the labels mapping to a target's metadata.
metaDataLabel = model.MetaLabelPrefix + "consul_metadata_"
// tagsLabel is the name of the label containing the tags assigned to the target. // tagsLabel is the name of the label containing the tags assigned to the target.
tagsLabel = model.MetaLabelPrefix + "consul_tags" tagsLabel = model.MetaLabelPrefix + "consul_tags"
// serviceLabel is the name of the label containing the service name. // serviceLabel is the name of the label containing the service name.
@ -294,7 +297,7 @@ func (srv *consulService) watch(ctx context.Context, ch chan<- []*config.TargetG
addr = net.JoinHostPort(node.Address, fmt.Sprintf("%d", node.ServicePort)) addr = net.JoinHostPort(node.Address, fmt.Sprintf("%d", node.ServicePort))
} }
tgroup.Targets = append(tgroup.Targets, model.LabelSet{ labels := model.LabelSet{
model.AddressLabel: model.LabelValue(addr), model.AddressLabel: model.LabelValue(addr),
addressLabel: model.LabelValue(node.Address), addressLabel: model.LabelValue(node.Address),
nodeLabel: model.LabelValue(node.Node), nodeLabel: model.LabelValue(node.Node),
@ -302,7 +305,15 @@ func (srv *consulService) watch(ctx context.Context, ch chan<- []*config.TargetG
serviceAddressLabel: model.LabelValue(node.ServiceAddress), serviceAddressLabel: model.LabelValue(node.ServiceAddress),
servicePortLabel: model.LabelValue(strconv.Itoa(node.ServicePort)), servicePortLabel: model.LabelValue(strconv.Itoa(node.ServicePort)),
serviceIDLabel: model.LabelValue(node.ServiceID), serviceIDLabel: model.LabelValue(node.ServiceID),
}) }
// 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)
}
tgroup.Targets = append(tgroup.Targets, labels)
} }
// Check context twice to ensure we always catch cancelation. // Check context twice to ensure we always catch cancelation.
select { select {