Merge pull request #1 from xxxcoltxxx/fix/request-close-body-on-error

Fix/request close body on error

.gitignore

@@ -1,3 +1,4 @@
 .idea/
 /config.yaml
+/dist
 /balance_exporter

.travis.yml

@@ -0,0 +1,41 @@
+language: go
+sudo: false
+matrix:
+  include:
+    - go: 1.11.x
+
+env:
+  - GO111MODULE=on
+
+before_install:
+  - go get github.com/mitchellh/gox
+
+script:
+  - go get -t -v ./...
+  - |-
+    gox \
+      -os="linux darwin windows" \
+      -arch="amd64" \
+      -output="dist/{{.Dir}}_${TRAVIS_TAG}_{{.OS}}_{{.Arch}}" \
+      -ldflags " \
+        -X github.com/prometheus/common/version.Revision=${TRAVIS_COMMIT} \
+        -X github.com/prometheus/common/version.Version=${TRAVIS_TAG} \
+        -X github.com/prometheus/common/version.Branch=${TRAVIS_BRANCH} \
+        -X github.com/prometheus/common/version.BuildDate=$(date +'%Y-%m-%d_%H:%M:%S') \
+        -X github.com/prometheus/common/version.BuildUser=${USER} \
+       "
+
+before_deploy:
+  - cd dist
+  - chmod +x ./*
+  - for f in *; do tar -czf $f.tar.gz $f && rm $f; done
+  - cd ..
+
+deploy:
+  provider: releases
+  api_key:
+    secure: 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
+  file: build/*
+  on:
+    tags: true
+    repo: xxxcoltxxx/selectel-balance-exporter

balance_retrievers/selectel.go

@@ -67,22 +67,27 @@ func (bf SelectelBalanceRetriever) loadBody() ([]byte, error) {
     req, err := http.NewRequest(http.MethodGet, selectelUrl, nil)
 
     if err != nil {
-        log.Printf("Error fetching balance: %s", err.Error())
+        log.Printf("Error make request: %s", err.Error())
         return []byte{}, err
     }
 
     req.Header.Add("X-token", bf.config.ApiKey)
     res, err := client.Do(req)
+    if err != nil {
+        log.Printf("Error balance request: %s", err.Error())
+        return []byte{}, err
+    }
+
     defer func() {
         err := res.Body.Close()
         if err != nil {
-            log.Printf("Error fetching balance: %s", err.Error())
+            log.Printf("Error close response body: %s", err.Error())
         }
     }()
 
     body, err := ioutil.ReadAll(res.Body)
     if err != nil {
-        log.Printf("Error fetching balance: %s", err.Error())
+        log.Printf("Error read response: %s", err.Error())
     }
 
     return body, nil

main.go

@@ -5,6 +5,7 @@ import (
     "flag"
     "github.com/prometheus/client_golang/prometheus"
     "github.com/prometheus/client_golang/prometheus/promhttp"
+    "github.com/prometheus/common/version"
     "github.com/spf13/viper"
     "log"
     "net/http"
@@ -51,7 +52,8 @@ func main() {
         registerFetcher(balance_retrievers.NewSelectelBalanceFetcher(balance_retrievers.SelectelConfig{ApiKey: apiKey}))
     }
 
-    log.Printf("Starting Selectel balance exporter at address %s\n", *addr)
+    log.Println("Starting Selectel balance exporter", version.Info())
+    log.Println("Build context", version.BuildContext())
 
     loadBalance()