mirror of
https://github.com/containers/podman.git
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684d0079d2
This commit is courtesy of ``` for f in $(git ls-files *.go | grep -v ^vendor/); do \ sed -i 's/\(errors\..*\)"Error /\1"error /' $f; done for f in $(git ls-files *.go | grep -v ^vendor/); do \ sed -i 's/\(errors\..*\)"Failed to /\1"failed to /' $f; done ``` etc. Self-reviewed using `git diff --word-diff`, found no issues. Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
73 lines
1.9 KiB
Go
73 lines
1.9 KiB
Go
package libpod
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import (
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"encoding/json"
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"net/http"
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"time"
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"github.com/containers/podman/v2/libpod"
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"github.com/containers/podman/v2/pkg/api/handlers/utils"
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"github.com/containers/podman/v2/pkg/domain/entities"
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"github.com/containers/podman/v2/pkg/domain/infra/abi"
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"github.com/gorilla/schema"
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"github.com/pkg/errors"
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"github.com/sirupsen/logrus"
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)
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const DefaultStatsPeriod = 5 * time.Second
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func StatsContainer(w http.ResponseWriter, r *http.Request) {
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runtime := r.Context().Value("runtime").(*libpod.Runtime)
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decoder := r.Context().Value("decoder").(*schema.Decoder)
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query := struct {
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Containers []string `schema:"containers"`
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Stream bool `schema:"stream"`
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}{
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Stream: true,
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}
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if err := decoder.Decode(&query, r.URL.Query()); err != nil {
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utils.Error(w, "Something went wrong.", http.StatusBadRequest, errors.Wrapf(err, "failed to parse parameters for %s", r.URL.String()))
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return
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}
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// Reduce code duplication and use the local/abi implementation of
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// container stats.
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containerEngine := abi.ContainerEngine{Libpod: runtime}
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statsOptions := entities.ContainerStatsOptions{
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Stream: query.Stream,
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}
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// Stats will stop if the connection is closed.
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statsChan, err := containerEngine.ContainerStats(r.Context(), query.Containers, statsOptions)
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if err != nil {
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utils.InternalServerError(w, err)
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return
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}
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// Write header and content type.
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w.WriteHeader(http.StatusOK)
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w.Header().Add("Content-Type", "application/json")
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if flusher, ok := w.(http.Flusher); ok {
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flusher.Flush()
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}
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// Setup JSON encoder for streaming.
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coder := json.NewEncoder(w)
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coder.SetEscapeHTML(true)
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for stats := range statsChan {
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if err := coder.Encode(stats); err != nil {
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// Note: even when streaming, the stats goroutine will
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// be notified (and stop) as the connection will be
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// closed.
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logrus.Errorf("Unable to encode stats: %v", err)
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return
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}
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if flusher, ok := w.(http.Flusher); ok {
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flusher.Flush()
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}
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}
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}
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