use storer from sdk

Author: kilokang

src/config/config.go

@@ -14,6 +14,4 @@ type ArgumentList struct {
 	// CgroupPath and CgroupDriver arguments are not used but are kept here for backwards compatibility reasons.
 	CgroupPath   string `default:"" help:"Deprecated. cgroup_path argument is not used anymore."`
 	CgroupDriver string `default:"" help:"Deprecated. cgroup_driver argument is not used anymore."`
-
-	CacheTTL string `default:"1m" help:"Set the maximum cache TTL that the integration is going to use to calculate rates and deltas. Possible values are time-strings: 1s, 1m, 1h"`
 }

src/nri/sampler.go

@@ -38,11 +38,6 @@ type ContainerSampler struct {
 
 // NewSampler returns a ContainerSampler instance.
 func NewSampler(fetcher raw.Fetcher, docker raw.DockerClient, config config.ArgumentList) (*ContainerSampler, error) {
-	cacheTTL, err := time.ParseDuration(config.CacheTTL)
-	if err != nil {
-		return nil, err
-	}
-
 	exitedContainerTTL, err := time.ParseDuration(config.ExitedContainersTTL)
 	if err != nil {
 		return nil, err
@@ -52,7 +47,7 @@ func NewSampler(fetcher raw.Fetcher, docker raw.DockerClient, config config.Argu
 	store, err := persist.NewFileStore(
 		persist.TmpPath(config.TempDir, "container_cpus"),
 		log.NewStdErr(true),
-		cacheTTL)
+		config.CacheTTL)
 	if err != nil {
 		return nil, err
 	}