Merge pull request #1 from stakefish/feat/remove-feature

add container CI and remove validator_delegation requests

.github/workflows/release.yaml

@@ -1,10 +1,14 @@
-name: goreleaser
+name: goreleaser and container
 
 on:
   push:
     tags:
       - '*'
 
+env:
+  REGISTRY: ghcr.io
+  IMAGE_NAME: ${{ github.repository }}
+
 permissions:
   contents: write
 
@@ -16,11 +20,41 @@ jobs:
       - uses: actions/setup-go@v2
         with:
           go-version: '1.16.5'
-      -
-        name: Run GoReleaser
+      - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v2
         with:
           version: latest
           args: release --rm-dist
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+  build-and-push-image:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Log in to the Container registry
+        uses: docker/login-action@f054a8b539a109f9f41c372932f1ae047eff08c9
+        with:
+          registry: ${{ env.REGISTRY }}
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Extract metadata (tags, labels) for container
+        id: meta
+        uses: docker/metadata-action@98669ae865ea3cffbcbaa878cf57c20bbf1c6c38
+        with:
+          images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+
+      - name: Build and push container image
+        uses: docker/build-push-action@ad44023a93711e3deb337508980b4b5e9bcdc5dc
+        with:
+          context: .
+          push: true
+          tags: ${{ steps.meta.outputs.tags }}
+          labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -0,0 +1,32 @@
+FROM golang:1.18-alpine as builder
+
+RUN apk update && \
+    apk add --no-cache ca-certificates git && \
+    update-ca-certificates
+
+RUN adduser -D -g '' appuser
+
+WORKDIR /app
+
+ENV CGO_ENABLED=0
+
+COPY go.mod .
+COPY go.sum .
+RUN go mod download
+RUN go mod verify
+
+COPY . .
+RUN go build -o /go/bin/cosmos-exporter -ldflags '-extldflags "-static"'
+
+# second step to build minimal image
+FROM scratch
+
+# add common trusted certificates from the build stage
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+COPY --from=builder /etc/passwd /etc/passwd
+
+USER appuser
+
+COPY --from=builder /go/bin/cosmos-exporter /go/bin/cosmos-exporter
+
+ENTRYPOINT ["/go/bin/cosmos-exporter"]

README.md

@@ -2,9 +2,16 @@
 
 ![Latest release](https://img.shields.io/github/v/release/solarlabsteam/cosmos-exporter)
 [![Actions Status](https://github.com/solarlabsteam/cosmos-exporter/workflows/test/badge.svg)](https://github.com/solarlabsteam/cosmos-exporter/actions)
+This project is forked from [solarlabsteam/cosmos-exporter](https://github.com/solarlabsteam/cosmos-exporter) with extra container release and removes heavy requests. Make this exporter more focused on operating purposes for system operators.
 
 cosmos-exporter is a Prometheus scraper that fetches the data from a full node of a Cosmos-based blockchain via gRPC.
 
+## Where to get container image?
+
+```sh
+docker pull ghcr.io/stakefish/cosmos-exporter:latest
+```
+
 ## What can I use it for?
 
 You can run a full node, run cosmos-exporter on the same host, set up Prometheus to scrape the data from it (see below for instructions), then set up Grafana to visualize the data coming from the exporter and probably add some alerting. Here are some examples of Grafana dashboards we created for ourselves:
@@ -15,7 +22,7 @@ You can run a full node, run cosmos-exporter on the same host, set up Prometheus
 
 ## How can I set it up?
 
-First of all, you need to download the latest release from [the releases page](https://github.com/solarlabsteam/cosmos-exporter/releases/). After that, you should unzip it and you are ready to go:
+First of all, you need to download the latest release from [the releases page](https://github.com/stakefish/cosmos-exporter/releases/). After that, you should unzip it and you are ready to go:
 
 ```sh
 wget <the link from the releases page>

validator.go

@@ -36,15 +36,6 @@ func ValidatorHandler(w http.ResponseWriter, r *http.Request, grpcConn *grpc.Cli
 		return
 	}
 
-	validatorDelegationsGauge := prometheus.NewGaugeVec(
-		prometheus.GaugeOpts{
-			Name:        "cosmos_validator_delegations",
-			Help:        "Delegations of the Cosmos-based blockchain validator",
-			ConstLabels: ConstLabels,
-		},
-		[]string{"address", "moniker", "denom", "delegated_by"},
-	)
-
 	validatorTokensGauge := prometheus.NewGaugeVec(
 		prometheus.GaugeOpts{
 			Name:        "cosmos_validator_tokens",
@@ -153,7 +144,6 @@ func ValidatorHandler(w http.ResponseWriter, r *http.Request, grpcConn *grpc.Cli
 	)
 
 	registry := prometheus.NewRegistry()
-	registry.MustRegister(validatorDelegationsGauge)
 	registry.MustRegister(validatorTokensGauge)
 	registry.MustRegister(validatorDelegatorSharesGauge)
 	registry.MustRegister(validatorCommissionRateGauge)
@@ -251,51 +241,6 @@ func ValidatorHandler(w http.ResponseWriter, r *http.Request, grpcConn *grpc.Cli
 
 	var wg sync.WaitGroup
 
-	go func() {
-		defer wg.Done()
-
-		sublogger.Debug().
-			Str("address", address).
-			Msg("Started querying validator delegations")
-		queryStart := time.Now()
-
-		stakingClient := stakingtypes.NewQueryClient(grpcConn)
-		stakingRes, err := stakingClient.ValidatorDelegations(
-			context.Background(),
-			&stakingtypes.QueryValidatorDelegationsRequest{ValidatorAddr: myAddress.String()},
-		)
-		if err != nil {
-			sublogger.Error().
-				Str("address", address).
-				Err(err).
-				Msg("Could not get validator delegations")
-			return
-		}
-
-		sublogger.Debug().
-			Str("address", address).
-			Float64("request-time", time.Since(queryStart).Seconds()).
-			Msg("Finished querying validator delegations")
-
-		for _, delegation := range stakingRes.DelegationResponses {
-			value, err := strconv.ParseFloat(delegation.Balance.Amount.String(), 64)
-			if err != nil {
-				log.Error().
-					Err(err).
-					Str("address", address).
-					Msg("Could not convert delegation entry")
-			} else {
-				validatorDelegationsGauge.With(prometheus.Labels{
-					"moniker":      validator.Validator.Description.Moniker,
-					"address":      delegation.Delegation.ValidatorAddress,
-					"denom":        Denom,
-					"delegated_by": delegation.Delegation.DelegatorAddress,
-				}).Set(value / DenomCoefficient)
-			}
-		}
-	}()
-	wg.Add(1)
-
 	go func() {
 		defer wg.Done()