da5e24ef4d
This makes the package split a little cleaner and easier to import the HTTP handlers for other consumers.
54 lines
1.4 KiB
Go
54 lines
1.4 KiB
Go
package api
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import (
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"context"
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"io"
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"net/http"
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"strconv"
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"github.com/cpuguy83/strongerrors"
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"github.com/gorilla/mux"
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"github.com/pkg/errors"
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)
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// ContainerLogsBackend is used in place of backend implementations for getting container logs
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type ContainerLogsBackend interface {
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GetContainerLogs(ctx context.Context, namespace, podName, containerName string, tail int) (string, error)
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}
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// PodLogsHandlerFunc creates an http handler function from a provider to serve logs from a pod
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func PodLogsHandlerFunc(p ContainerLogsBackend) http.HandlerFunc {
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return handleError(func(w http.ResponseWriter, req *http.Request) error {
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vars := mux.Vars(req)
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if len(vars) != 3 {
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return strongerrors.NotFound(errors.New("not found"))
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}
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ctx := req.Context()
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namespace := vars["namespace"]
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pod := vars["pod"]
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container := vars["container"]
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tail := 10
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q := req.URL.Query()
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if queryTail := q.Get("tailLines"); queryTail != "" {
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t, err := strconv.Atoi(queryTail)
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if err != nil {
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return strongerrors.InvalidArgument(errors.Wrap(err, "could not parse \"tailLines\""))
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}
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tail = t
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}
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podsLogs, err := p.GetContainerLogs(ctx, namespace, pod, container, tail)
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if err != nil {
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return errors.Wrap(err, "error getting container logs?)")
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}
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if _, err := io.WriteString(w, podsLogs); err != nil {
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return strongerrors.Unknown(errors.Wrap(err, "error writing response to client"))
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}
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return nil
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})
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}
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