dawid/getenv
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Output errors to stderr

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This commit is contained in:
Dawid Pogorzelski
2021-10-27 09:15:21 +02:00
parent 6a227bf4b8
commit 9e83b93639
1 changed files with 9 additions and 5 deletions
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14
main.go
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@@ -4,8 +4,8 @@ import (
"encoding/json" "encoding/json"
"flag" "flag"
"fmt" "fmt"
"log"
"net/http" "net/http"
"os"
"strings" "strings"
"time" "time"
) )
@@ -20,18 +20,21 @@ func main() {
req, err := http.NewRequest("GET", "http://metadata/computeMetadata/v1/instance/attributes?recursive=true", nil) req, err := http.NewRequest("GET", "http://metadata/computeMetadata/v1/instance/attributes?recursive=true", nil)
if err != nil { if err != nil {
log.Fatal(err) fmt.Fprint(os.Stderr, err)
os.Exit(1)
} }
req.Header.Add("Metadata-Flavor", "Google") req.Header.Add("Metadata-Flavor", "Google")
res, err := client.Do(req) res, err := client.Do(req)
if err != nil { if err != nil {
log.Fatal(err) fmt.Fprint(os.Stderr, err)
os.Exit(1)
} }
defer res.Body.Close() defer res.Body.Close()
if res.StatusCode != 200 { if res.StatusCode != 200 {
log.Fatal("couldn't fetch metadata attributes") fmt.Fprint(os.Stderr, "couldn't fetch metadata attributes")
os.Exit(1)
} }
items := make(map[string]string) items := make(map[string]string)
@@ -39,7 +42,8 @@ func main() {
err = json.NewDecoder(res.Body).Decode(&items) err = json.NewDecoder(res.Body).Decode(&items)
if err != nil { if err != nil {
log.Fatal(err) fmt.Fprint(os.Stderr, err)
os.Exit(1)
} }
for k, v := range items { for k, v := range items {