Emit info metrics as gauges

[branden]

Vector emits an error and fails to scrape Prometheus metrics if they contain a metric of type info. Prior to KSM 2.8.0 all custom resource metrics were of type gauge, so this effectively reverts to that behavior specifically for info metrics.

branden@crateria kube-state-metrics % make test-unit all
GOOS=darwin GOARCH=arm64  go test --race  k8s.io/kube-state-metrics/v2 k8s.io/kube-state-metrics/v2/internal k8s.io/kube-state-metrics/v2/internal/store k8s.io/kube-state-metrics/v2/pkg/allow k8s.io/kube-state-metrics/v2/pkg/allowdenylist k8s.io/kube-state-metrics/v2/pkg/app k8s.io/kube-state-metrics/v2/pkg/builder k8s.io/kube-state-metrics/v2/pkg/builder/types k8s.io/kube-state-metrics/v2/pkg/constant k8s.io/kube-state-metrics/v2/pkg/customresource k8s.io/kube-state-metrics/v2/pkg/customresourcestate k8s.io/kube-state-metrics/v2/pkg/metric k8s.io/kube-state-metrics/v2/pkg/metric_generator k8s.io/kube-state-metrics/v2/pkg/metrics_store k8s.io/kube-state-metrics/v2/pkg/metricshandler k8s.io/kube-state-metrics/v2/pkg/optin k8s.io/kube-state-metrics/v2/pkg/options k8s.io/kube-state-metrics/v2/pkg/sharding k8s.io/kube-state-metrics/v2/pkg/util/proc k8s.io/kube-state-metrics/v2/pkg/watch k8s.io/kube-state-metrics/v2/tests/lib
?       k8s.io/kube-state-metrics/v2    [no test files]
?       k8s.io/kube-state-metrics/v2/internal   [no test files]
?       k8s.io/kube-state-metrics/v2/pkg/allow  [no test files]
ok      k8s.io/kube-state-metrics/v2/internal/store     (cached)
ok      k8s.io/kube-state-metrics/v2/pkg/allowdenylist  (cached)
?       k8s.io/kube-state-metrics/v2/pkg/builder/types  [no test files]
?       k8s.io/kube-state-metrics/v2/pkg/constant       [no test files]
?       k8s.io/kube-state-metrics/v2/pkg/customresource [no test files]
?       k8s.io/kube-state-metrics/v2/pkg/metric_generator    [no test files]
?       k8s.io/kube-state-metrics/v2/pkg/metricshandler [no test files]
ok      k8s.io/kube-state-metrics/v2/pkg/app    (cached)
ok      k8s.io/kube-state-metrics/v2/pkg/builder        (cached)
ok      k8s.io/kube-state-metrics/v2/pkg/customresourcestate (cached)
ok      k8s.io/kube-state-metrics/v2/pkg/metric (cached)
ok      k8s.io/kube-state-metrics/v2/pkg/metrics_store  (cached)
ok      k8s.io/kube-state-metrics/v2/pkg/optin  (cached)
ok      k8s.io/kube-state-metrics/v2/pkg/options        (cached)
?       k8s.io/kube-state-metrics/v2/pkg/util/proc      [no test files]
?       k8s.io/kube-state-metrics/v2/pkg/watch  [no test files]
ok      k8s.io/kube-state-metrics/v2/pkg/sharding       (cached)
ok      k8s.io/kube-state-metrics/v2/tests/lib  (cached)
/Library/Developer/CommandLineTools/usr/bin/make --no-print-directory ARCH=amd64 container
docker build --pull -t us.gcr.io/orchestration-build/kube-state-metrics/kube-state-metrics-amd64:v2.8.1-upbound003 --build-arg GOVERSION=1.19.6 --build-arg GOARCH=amd64 .
[+] Building 68.0s (13/13) FINISHED
 => [internal] load build definition from Dockerfile     0.0s
 => => transferring dockerfile: 37B                      0.0s
 => [internal] load .dockerignore                        0.0s
 => => transferring context: 2B                          0.0s
 => [internal] load metadata for gcr.io/distroless/stat  0.4s
 => [internal] load metadata for docker.io/library/gola  1.2s
 => [auth] library/golang:pull token for registry-1.doc  0.0s
 => [builder 1/4] FROM docker.io/library/golang:1.19.6@  0.0s
 => [internal] load build context                        0.0s
 => => transferring context: 65.69kB                     0.0s
 => CACHED [stage-1 1/2] FROM gcr.io/distroless/static:  0.0s
 => => resolve gcr.io/distroless/static:latest-amd64@sh  0.0s
 => CACHED [builder 2/4] WORKDIR /go/src/k8s.io/kube-st  0.0s
 => [builder 3/4] COPY . /go/src/k8s.io/kube-state-metr  0.7s
 => [builder 4/4] RUN make build-local                  65.4s
 => [stage-1 2/2] COPY --from=builder /go/src/k8s.io/ku  0.2s
 => exporting to image                                   0.1s
 => => exporting layers                                  0.1s
 => => writing image sha256:44478f618db59c192664b30afd4  0.0s
 => => naming to us.gcr.io/orchestration-build/kube-sta  0.0s

Use 'docker scan' to run Snyk tests against images to find vulnerabilities and learn how to fix them
<snip>
branden@crateria kube-state-metrics % echo $?
0
branden@crateria kube-state-metrics %