Merge pull request #58 from influxdb/docker-non-linux

Allow gopsutil docker to build on non-linux boxes by stubbing out non…

docker/docker.go

@@ -0,0 +1,36 @@
+package docker
+
+import "errors"
+
+var ErrNotAvailable = errors.New("docker not available")
+
+type CgroupMemStat struct {
+	ContainerID             string `json:"container_id"`
+	Cache                   uint64 `json:"cache"`
+	RSS                     uint64 `json:"rss"`
+	RSSHuge                 uint64 `json:"rss_huge"`
+	MappedFile              uint64 `json:"mapped_file"`
+	Pgpgin                  uint64 `json:"pgpgin"`
+	Pgpgout                 uint64 `json:"pgpgout"`
+	Pgfault                 uint64 `json:"pgfault"`
+	Pgmajfault              uint64 `json:"pgmajfault"`
+	InactiveAnon            uint64 `json:"inactive_anon"`
+	ActiveAnon              uint64 `json:"active_anon"`
+	InactiveFile            uint64 `json:"inactive_file"`
+	ActiveFile              uint64 `json:"active_file"`
+	Unevictable             uint64 `json:"unevictable"`
+	HierarchicalMemoryLimit uint64 `json:"hierarchical_memory_limit"`
+	TotalCache              uint64 `json:"total_cache"`
+	TotalRSS                uint64 `json:"total_rss"`
+	TotalRSSHuge            uint64 `json:"total_rss_huge"`
+	TotalMappedFile         uint64 `json:"total_mapped_file"`
+	TotalPgpgIn             uint64 `json:"total_pgpgin"`
+	TotalPgpgOut            uint64 `json:"total_pgpgout"`
+	TotalPgFault            uint64 `json:"total_pgfault"`
+	TotalPgMajFault         uint64 `json:"total_pgmajfault"`
+	TotalInactiveAnon       uint64 `json:"total_inactive_anon"`
+	TotalActiveAnon         uint64 `json:"total_active_anon"`
+	TotalInactiveFile       uint64 `json:"total_inactive_file"`
+	TotalActiveFile         uint64 `json:"total_active_file"`
+	TotalUnevictable        uint64 `json:"total_unevictable"`
+}

docker/docker_linux.go

@@ -14,39 +14,6 @@ import (
 	cpu "github.com/shirou/gopsutil/cpu"
 )
 
-type CgroupMemStat struct {
-	ContainerID             string `json:"container_id"`
-	Cache                   uint64 `json:"cache"`
-	RSS                     uint64 `json:"rss"`
-	RSSHuge                 uint64 `json:"rss_huge"`
-	MappedFile              uint64 `json:"mapped_file"`
-	Pgpgin                  uint64 `json:"pgpgin"`
-	Pgpgout                 uint64 `json:"pgpgout"`
-	Pgfault                 uint64 `json:"pgfault"`
-	Pgmajfault              uint64 `json:"pgmajfault"`
-	InactiveAnon            uint64 `json:"inactive_anon"`
-	ActiveAnon              uint64 `json:"active_anon"`
-	InactiveFile            uint64 `json:"inactive_file"`
-	ActiveFile              uint64 `json:"active_file"`
-	Unevictable             uint64 `json:"unevictable"`
-	HierarchicalMemoryLimit uint64 `json:"hierarchical_memory_limit"`
-	TotalCache              uint64 `json:"total_cache"`
-	TotalRSS                uint64 `json:"total_rss"`
-	TotalRSSHuge            uint64 `json:"total_rss_huge"`
-	TotalMappedFile         uint64 `json:"total_mapped_file"`
-	TotalPgpgIn             uint64 `json:"total_pgpgin"`
-	TotalPgpgOut            uint64 `json:"total_pgpgout"`
-	TotalPgFault            uint64 `json:"total_pgfault"`
-	TotalPgMajFault         uint64 `json:"total_pgmajfault"`
-	TotalInactiveAnon       uint64 `json:"total_inactive_anon"`
-	TotalActiveAnon         uint64 `json:"total_active_anon"`
-	TotalInactiveFile       uint64 `json:"total_inactive_file"`
-	TotalActiveFile         uint64 `json:"total_active_file"`
-	TotalUnevictable        uint64 `json:"total_unevictable"`
-}
-
-var ErrDockerNotAvailable = errors.New("docker not available")
-
 // GetDockerIDList returnes a list of DockerID.
 // This requires certain permission.
 func GetDockerIDList() ([]string, error) {

docker/docker_notlinux.go

@@ -0,0 +1,41 @@
+// +build !linux
+
+package docker
+
+import (
+	"encoding/json"
+
+	"github.com/shirou/gopsutil/common"
+	"github.com/shirou/gopsutil/cpu"
+)
+
+// GetDockerIDList returnes a list of DockerID.
+// This requires certain permission.
+func GetDockerIDList() ([]string, error) {
+	return nil, common.NotImplementedError
+}
+
+// CgroupCPU returnes specified cgroup id CPU status.
+// containerid is same as docker id if you use docker.
+// If you use container via systemd.slice, you could use
+// containerid = docker-<container id>.scope and base=/sys/fs/cgroup/cpuacct/system.slice/
+func CgroupCPU(containerid string, base string) (*cpu.CPUTimesStat, error) {
+	return nil, common.NotImplementedError
+}
+
+func CgroupCPUDocker(containerid string) (*cpu.CPUTimesStat, error) {
+	return CgroupCPU(containerid, "/sys/fs/cgroup/cpuacct/docker")
+}
+
+func CgroupMem(containerid string, base string) (*CgroupMemStat, error) {
+	return nil, common.NotImplementedError
+}
+
+func CgroupMemDocker(containerid string) (*CgroupMemStat, error) {
+	return CgroupMem(containerid, "/sys/fs/cgroup/memory/docker")
+}
+
+func (m CgroupMemStat) String() string {
+	s, _ := json.Marshal(m)
+	return string(s)
+}