diff options
Diffstat (limited to 'vendor/github.com/fsouza/go-dockerclient/container_stats.go')
| -rw-r--r-- | vendor/github.com/fsouza/go-dockerclient/container_stats.go | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/vendor/github.com/fsouza/go-dockerclient/container_stats.go b/vendor/github.com/fsouza/go-dockerclient/container_stats.go new file mode 100644 index 000000000..a899b95cf --- /dev/null +++ b/vendor/github.com/fsouza/go-dockerclient/container_stats.go @@ -0,0 +1,214 @@ +package docker + +import ( + "context" + "encoding/json" + "fmt" + "io" + "net/http" + "time" +) + +// Stats represents container statistics, returned by /containers/<id>/stats. +// +// See https://goo.gl/Dk3Xio for more details. +type Stats struct { + Read time.Time `json:"read,omitempty" yaml:"read,omitempty" toml:"read,omitempty"` + PreRead time.Time `json:"preread,omitempty" yaml:"preread,omitempty" toml:"preread,omitempty"` + NumProcs uint32 `json:"num_procs" yaml:"num_procs" toml:"num_procs"` + PidsStats struct { + Current uint64 `json:"current,omitempty" yaml:"current,omitempty"` + } `json:"pids_stats,omitempty" yaml:"pids_stats,omitempty" toml:"pids_stats,omitempty"` + Network NetworkStats `json:"network,omitempty" yaml:"network,omitempty" toml:"network,omitempty"` + Networks map[string]NetworkStats `json:"networks,omitempty" yaml:"networks,omitempty" toml:"networks,omitempty"` + MemoryStats struct { + Stats struct { + TotalPgmafault uint64 `json:"total_pgmafault,omitempty" yaml:"total_pgmafault,omitempty" toml:"total_pgmafault,omitempty"` + Cache uint64 `json:"cache,omitempty" yaml:"cache,omitempty" toml:"cache,omitempty"` + MappedFile uint64 `json:"mapped_file,omitempty" yaml:"mapped_file,omitempty" toml:"mapped_file,omitempty"` + TotalInactiveFile uint64 `json:"total_inactive_file,omitempty" yaml:"total_inactive_file,omitempty" toml:"total_inactive_file,omitempty"` + Pgpgout uint64 `json:"pgpgout,omitempty" yaml:"pgpgout,omitempty" toml:"pgpgout,omitempty"` + Rss uint64 `json:"rss,omitempty" yaml:"rss,omitempty" toml:"rss,omitempty"` + TotalMappedFile uint64 `json:"total_mapped_file,omitempty" yaml:"total_mapped_file,omitempty" toml:"total_mapped_file,omitempty"` + Writeback uint64 `json:"writeback,omitempty" yaml:"writeback,omitempty" toml:"writeback,omitempty"` + Unevictable uint64 `json:"unevictable,omitempty" yaml:"unevictable,omitempty" toml:"unevictable,omitempty"` + Pgpgin uint64 `json:"pgpgin,omitempty" yaml:"pgpgin,omitempty" toml:"pgpgin,omitempty"` + TotalUnevictable uint64 `json:"total_unevictable,omitempty" yaml:"total_unevictable,omitempty" toml:"total_unevictable,omitempty"` + Pgmajfault uint64 `json:"pgmajfault,omitempty" yaml:"pgmajfault,omitempty" toml:"pgmajfault,omitempty"` + TotalRss uint64 `json:"total_rss,omitempty" yaml:"total_rss,omitempty" toml:"total_rss,omitempty"` + TotalRssHuge uint64 `json:"total_rss_huge,omitempty" yaml:"total_rss_huge,omitempty" toml:"total_rss_huge,omitempty"` + TotalWriteback uint64 `json:"total_writeback,omitempty" yaml:"total_writeback,omitempty" toml:"total_writeback,omitempty"` + TotalInactiveAnon uint64 `json:"total_inactive_anon,omitempty" yaml:"total_inactive_anon,omitempty" toml:"total_inactive_anon,omitempty"` + RssHuge uint64 `json:"rss_huge,omitempty" yaml:"rss_huge,omitempty" toml:"rss_huge,omitempty"` + HierarchicalMemoryLimit uint64 `json:"hierarchical_memory_limit,omitempty" yaml:"hierarchical_memory_limit,omitempty" toml:"hierarchical_memory_limit,omitempty"` + TotalPgfault uint64 `json:"total_pgfault,omitempty" yaml:"total_pgfault,omitempty" toml:"total_pgfault,omitempty"` + TotalActiveFile uint64 `json:"total_active_file,omitempty" yaml:"total_active_file,omitempty" toml:"total_active_file,omitempty"` + ActiveAnon uint64 `json:"active_anon,omitempty" yaml:"active_anon,omitempty" toml:"active_anon,omitempty"` + TotalActiveAnon uint64 `json:"total_active_anon,omitempty" yaml:"total_active_anon,omitempty" toml:"total_active_anon,omitempty"` + TotalPgpgout uint64 `json:"total_pgpgout,omitempty" yaml:"total_pgpgout,omitempty" toml:"total_pgpgout,omitempty"` + TotalCache uint64 `json:"total_cache,omitempty" yaml:"total_cache,omitempty" toml:"total_cache,omitempty"` + InactiveAnon uint64 `json:"inactive_anon,omitempty" yaml:"inactive_anon,omitempty" toml:"inactive_anon,omitempty"` + ActiveFile uint64 `json:"active_file,omitempty" yaml:"active_file,omitempty" toml:"active_file,omitempty"` + Pgfault uint64 `json:"pgfault,omitempty" yaml:"pgfault,omitempty" toml:"pgfault,omitempty"` + InactiveFile uint64 `json:"inactive_file,omitempty" yaml:"inactive_file,omitempty" toml:"inactive_file,omitempty"` + TotalPgpgin uint64 `json:"total_pgpgin,omitempty" yaml:"total_pgpgin,omitempty" toml:"total_pgpgin,omitempty"` + HierarchicalMemswLimit uint64 `json:"hierarchical_memsw_limit,omitempty" yaml:"hierarchical_memsw_limit,omitempty" toml:"hierarchical_memsw_limit,omitempty"` + Swap uint64 `json:"swap,omitempty" yaml:"swap,omitempty" toml:"swap,omitempty"` + } `json:"stats,omitempty" yaml:"stats,omitempty" toml:"stats,omitempty"` + MaxUsage uint64 `json:"max_usage,omitempty" yaml:"max_usage,omitempty" toml:"max_usage,omitempty"` + Usage uint64 `json:"usage,omitempty" yaml:"usage,omitempty" toml:"usage,omitempty"` + Failcnt uint64 `json:"failcnt,omitempty" yaml:"failcnt,omitempty" toml:"failcnt,omitempty"` + Limit uint64 `json:"limit,omitempty" yaml:"limit,omitempty" toml:"limit,omitempty"` + Commit uint64 `json:"commitbytes,omitempty" yaml:"commitbytes,omitempty" toml:"privateworkingset,omitempty"` + CommitPeak uint64 `json:"commitpeakbytes,omitempty" yaml:"commitpeakbytes,omitempty" toml:"commitpeakbytes,omitempty"` + PrivateWorkingSet uint64 `json:"privateworkingset,omitempty" yaml:"privateworkingset,omitempty" toml:"privateworkingset,omitempty"` + } `json:"memory_stats,omitempty" yaml:"memory_stats,omitempty" toml:"memory_stats,omitempty"` + BlkioStats struct { + IOServiceBytesRecursive []BlkioStatsEntry `json:"io_service_bytes_recursive,omitempty" yaml:"io_service_bytes_recursive,omitempty" toml:"io_service_bytes_recursive,omitempty"` + IOServicedRecursive []BlkioStatsEntry `json:"io_serviced_recursive,omitempty" yaml:"io_serviced_recursive,omitempty" toml:"io_serviced_recursive,omitempty"` + IOQueueRecursive []BlkioStatsEntry `json:"io_queue_recursive,omitempty" yaml:"io_queue_recursive,omitempty" toml:"io_queue_recursive,omitempty"` + IOServiceTimeRecursive []BlkioStatsEntry `json:"io_service_time_recursive,omitempty" yaml:"io_service_time_recursive,omitempty" toml:"io_service_time_recursive,omitempty"` + IOWaitTimeRecursive []BlkioStatsEntry `json:"io_wait_time_recursive,omitempty" yaml:"io_wait_time_recursive,omitempty" toml:"io_wait_time_recursive,omitempty"` + IOMergedRecursive []BlkioStatsEntry `json:"io_merged_recursive,omitempty" yaml:"io_merged_recursive,omitempty" toml:"io_merged_recursive,omitempty"` + IOTimeRecursive []BlkioStatsEntry `json:"io_time_recursive,omitempty" yaml:"io_time_recursive,omitempty" toml:"io_time_recursive,omitempty"` + SectorsRecursive []BlkioStatsEntry `json:"sectors_recursive,omitempty" yaml:"sectors_recursive,omitempty" toml:"sectors_recursive,omitempty"` + } `json:"blkio_stats,omitempty" yaml:"blkio_stats,omitempty" toml:"blkio_stats,omitempty"` + CPUStats CPUStats `json:"cpu_stats,omitempty" yaml:"cpu_stats,omitempty" toml:"cpu_stats,omitempty"` + PreCPUStats CPUStats `json:"precpu_stats,omitempty"` + StorageStats struct { + ReadCountNormalized uint64 `json:"read_count_normalized,omitempty" yaml:"read_count_normalized,omitempty" toml:"read_count_normalized,omitempty"` + ReadSizeBytes uint64 `json:"read_size_bytes,omitempty" yaml:"read_size_bytes,omitempty" toml:"read_size_bytes,omitempty"` + WriteCountNormalized uint64 `json:"write_count_normalized,omitempty" yaml:"write_count_normalized,omitempty" toml:"write_count_normalized,omitempty"` + WriteSizeBytes uint64 `json:"write_size_bytes,omitempty" yaml:"write_size_bytes,omitempty" toml:"write_size_bytes,omitempty"` + } `json:"storage_stats,omitempty" yaml:"storage_stats,omitempty" toml:"storage_stats,omitempty"` +} + +// NetworkStats is a stats entry for network stats +type NetworkStats struct { + RxDropped uint64 `json:"rx_dropped,omitempty" yaml:"rx_dropped,omitempty" toml:"rx_dropped,omitempty"` + RxBytes uint64 `json:"rx_bytes,omitempty" yaml:"rx_bytes,omitempty" toml:"rx_bytes,omitempty"` + RxErrors uint64 `json:"rx_errors,omitempty" yaml:"rx_errors,omitempty" toml:"rx_errors,omitempty"` + TxPackets uint64 `json:"tx_packets,omitempty" yaml:"tx_packets,omitempty" toml:"tx_packets,omitempty"` + TxDropped uint64 `json:"tx_dropped,omitempty" yaml:"tx_dropped,omitempty" toml:"tx_dropped,omitempty"` + RxPackets uint64 `json:"rx_packets,omitempty" yaml:"rx_packets,omitempty" toml:"rx_packets,omitempty"` + TxErrors uint64 `json:"tx_errors,omitempty" yaml:"tx_errors,omitempty" toml:"tx_errors,omitempty"` + TxBytes uint64 `json:"tx_bytes,omitempty" yaml:"tx_bytes,omitempty" toml:"tx_bytes,omitempty"` +} + +// CPUStats is a stats entry for cpu stats +type CPUStats struct { + CPUUsage struct { + PercpuUsage []uint64 `json:"percpu_usage,omitempty" yaml:"percpu_usage,omitempty" toml:"percpu_usage,omitempty"` + UsageInUsermode uint64 `json:"usage_in_usermode,omitempty" yaml:"usage_in_usermode,omitempty" toml:"usage_in_usermode,omitempty"` + TotalUsage uint64 `json:"total_usage,omitempty" yaml:"total_usage,omitempty" toml:"total_usage,omitempty"` + UsageInKernelmode uint64 `json:"usage_in_kernelmode,omitempty" yaml:"usage_in_kernelmode,omitempty" toml:"usage_in_kernelmode,omitempty"` + } `json:"cpu_usage,omitempty" yaml:"cpu_usage,omitempty" toml:"cpu_usage,omitempty"` + SystemCPUUsage uint64 `json:"system_cpu_usage,omitempty" yaml:"system_cpu_usage,omitempty" toml:"system_cpu_usage,omitempty"` + OnlineCPUs uint64 `json:"online_cpus,omitempty" yaml:"online_cpus,omitempty" toml:"online_cpus,omitempty"` + ThrottlingData struct { + Periods uint64 `json:"periods,omitempty"` + ThrottledPeriods uint64 `json:"throttled_periods,omitempty"` + ThrottledTime uint64 `json:"throttled_time,omitempty"` + } `json:"throttling_data,omitempty" yaml:"throttling_data,omitempty" toml:"throttling_data,omitempty"` +} + +// BlkioStatsEntry is a stats entry for blkio_stats +type BlkioStatsEntry struct { + Major uint64 `json:"major,omitempty" yaml:"major,omitempty" toml:"major,omitempty"` + Minor uint64 `json:"minor,omitempty" yaml:"minor,omitempty" toml:"minor,omitempty"` + Op string `json:"op,omitempty" yaml:"op,omitempty" toml:"op,omitempty"` + Value uint64 `json:"value,omitempty" yaml:"value,omitempty" toml:"value,omitempty"` +} + +// StatsOptions specify parameters to the Stats function. +// +// See https://goo.gl/Dk3Xio for more details. +type StatsOptions struct { + ID string + Stats chan<- *Stats + Stream bool + // A flag that enables stopping the stats operation + Done <-chan bool + // Initial connection timeout + Timeout time.Duration + // Timeout with no data is received, it's reset every time new data + // arrives + InactivityTimeout time.Duration `qs:"-"` + Context context.Context +} + +// Stats sends container statistics for the given container to the given channel. +// +// This function is blocking, similar to a streaming call for logs, and should be run +// on a separate goroutine from the caller. Note that this function will block until +// the given container is removed, not just exited. When finished, this function +// will close the given channel. Alternatively, function can be stopped by +// signaling on the Done channel. +// +// See https://goo.gl/Dk3Xio for more details. +func (c *Client) Stats(opts StatsOptions) (retErr error) { + errC := make(chan error, 1) + readCloser, writeCloser := io.Pipe() + + defer func() { + close(opts.Stats) + + if err := <-errC; err != nil && retErr == nil { + retErr = err + } + + if err := readCloser.Close(); err != nil && retErr == nil { + retErr = err + } + }() + + reqSent := make(chan struct{}) + go func() { + defer close(errC) + err := c.stream(http.MethodGet, fmt.Sprintf("/containers/%s/stats?stream=%v", opts.ID, opts.Stream), streamOptions{ + rawJSONStream: true, + useJSONDecoder: true, + stdout: writeCloser, + timeout: opts.Timeout, + inactivityTimeout: opts.InactivityTimeout, + context: opts.Context, + reqSent: reqSent, + }) + if err != nil { + dockerError, ok := err.(*Error) + if ok { + if dockerError.Status == http.StatusNotFound { + err = &NoSuchContainer{ID: opts.ID} + } + } + } + if closeErr := writeCloser.Close(); closeErr != nil && err == nil { + err = closeErr + } + errC <- err + }() + + quit := make(chan struct{}) + defer close(quit) + go func() { + // block here waiting for the signal to stop function + select { + case <-opts.Done: + readCloser.Close() + case <-quit: + return + } + }() + + decoder := json.NewDecoder(readCloser) + stats := new(Stats) + <-reqSent + for err := decoder.Decode(stats); err != io.EOF; err = decoder.Decode(stats) { + if err != nil { + return err + } + opts.Stats <- stats + stats = new(Stats) + } + return nil +} |