Wire lasso metrics up to common gatherer

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

go.mod

@@ -18,6 +18,7 @@ replace (
 	github.com/opencontainers/selinux => github.com/opencontainers/selinux v1.11.0
 	github.com/prometheus/client_golang => github.com/prometheus/client_golang v1.18.0
 	github.com/prometheus/common => github.com/prometheus/common v0.45.0
+	github.com/rancher/lasso => github.com/brandond/lasso v0.0.0-20240716012820-3fcc1e6e7dfa
 	github.com/spegel-org/spegel => github.com/k3s-io/spegel v0.0.23-0.20240516234953-f3d2c4072314
 	github.com/ugorji/go => github.com/ugorji/go v1.2.11
 	go.etcd.io/etcd/api/v3 => github.com/k3s-io/etcd/api/v3 v3.5.13-k3s1
@@ -279,7 +280,7 @@ require (
 	github.com/hashicorp/go-version v1.6.0 // indirect
 	github.com/hashicorp/golang-lru v0.5.4 // indirect
 	github.com/hashicorp/golang-lru/arc/v2 v2.0.5 // indirect
-	github.com/hashicorp/golang-lru/v2 v2.0.5 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/huin/goupnp v1.3.0 // indirect
 	github.com/imdario/mergo v0.3.16 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect

go.sum

@@ -307,6 +307,8 @@ github.com/blang/semver/v4 v4.0.0/go.mod h1:IbckMUScFkM3pff0VJDNKRiT6TG/YpiHIM2y
 github.com/boombuler/barcode v1.0.0/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
 github.com/boombuler/barcode v1.0.1/go.mod h1:paBWMcWSl3LHKBqUq+rly7CNSldXjb2rDl3JlRe0mD8=
 github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
+github.com/brandond/lasso v0.0.0-20240716012820-3fcc1e6e7dfa h1:KXkFEKwc/RX8cmGAJfqp48BxEvBfV717RzctKn+q2e0=
+github.com/brandond/lasso v0.0.0-20240716012820-3fcc1e6e7dfa/go.mod h1:A/y3BLQkxZXYD60MNDRwAG9WGxXfvd6Z6gWR/a8wPw8=
 github.com/bronze1man/goStrongswanVici v0.0.0-20221114103242-3f6dc524986c h1:JY0NMX6F455gODxoTSesio3OmhM8HEniyFMWgpHvTY0=
 github.com/bronze1man/goStrongswanVici v0.0.0-20221114103242-3f6dc524986c/go.mod h1:fWUtBEPt2yjrr3WFhOqvajM8JSEU8bEeBcoeSCsKRpc=
 github.com/buger/jsonparser v0.0.0-20181115193947-bf1c66bbce23/go.mod h1:bbYlZJ7hK1yFx9hf58LP0zeX7UjIGs20ufpu3evjr+s=
@@ -819,8 +821,8 @@ github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+l
 github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
 github.com/hashicorp/golang-lru/arc/v2 v2.0.5 h1:l2zaLDubNhW4XO3LnliVj0GXO3+/CGNJAg1dcN2Fpfw=
 github.com/hashicorp/golang-lru/arc/v2 v2.0.5/go.mod h1:ny6zBSQZi2JxIeYcv7kt2sH2PXJtirBN7RDhRpxPkxU=
-github.com/hashicorp/golang-lru/v2 v2.0.5 h1:wW7h1TG88eUIJ2i69gaE3uNVtEPIagzhGvHgwfx2Vm4=
-github.com/hashicorp/golang-lru/v2 v2.0.5/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
+github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
+github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO+LraFDTW64=
 github.com/hashicorp/mdns v1.0.0/go.mod h1:tL+uN++7HEJ6SQLQ2/p+z2pH24WQKWjBPkE0mNTz8vQ=
@@ -1407,8 +1409,6 @@ github.com/quic-go/webtransport-go v0.6.0 h1:CvNsKqc4W2HljHJnoT+rMmbRJybShZ0YPFD
 github.com/quic-go/webtransport-go v0.6.0/go.mod h1:9KjU4AEBqEQidGHNDkZrb8CAa1abRaosM2yGOyiikEc=
 github.com/rancher/dynamiclistener v0.6.0-rc1 h1:Emwf9o7PMLdQNv4lvFx7xJKxDuDa4Y69GvVEGU9U9Js=
 github.com/rancher/dynamiclistener v0.6.0-rc1/go.mod h1:BIPgJ8xFSUyuTyGvRMVt++S1qjD3+7Ptvq1TXl6hcTM=
-github.com/rancher/lasso v0.0.0-20240430201833-6f3def65ffc5 h1:6K4RhfmCy7uxaw9OzCljNLfFcgD/q7SeF+/2gCQ3Tvw=
-github.com/rancher/lasso v0.0.0-20240430201833-6f3def65ffc5/go.mod h1:7WkdfPEvWAdnHVioMUkhpZkshJzjDY62ocHVhcbw89M=
 github.com/rancher/permissions v0.0.0-20240523180510-4001d3d637f7 h1:0Kg2SGoMeU1ll4xPi4DE0+qNHLFO/U5MwtK0WrIdK+o=
 github.com/rancher/permissions v0.0.0-20240523180510-4001d3d637f7/go.mod h1:fsbs0YOsGn1ofPD5p+BuI4qDhbMbSJtTegKt6Ucna+c=
 github.com/rancher/remotedialer v0.4.1 h1:jwOf2kPRjBBpSFofv1OuZHWaYHeC9Eb6/XgDvbkoTgc=

pkg/metrics/metrics.go

@@ -8,6 +8,7 @@ import (
 	"github.com/k3s-io/k3s/pkg/agent/https"
 	"github.com/k3s-io/k3s/pkg/daemons/config"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
+	lassometrics "github.com/rancher/lasso/pkg/metrics"
 	"k8s.io/component-base/metrics/legacyregistry"
 )
 
@@ -28,6 +29,11 @@ var DefaultMetrics = &Config{
 	},
 }
 
+func init() {
+	// ensure that lasso exposes metrics through the same registry used by Kubernetes components
+	lassometrics.MustRegister(DefaultRegisterer)
+}
+
 // Config holds fields for the metrics listener
 type Config struct {
 	// Router will be called to add the metrics API handler to an existing router.