Ta-Ching ChenandGitHub
574fb55fcf
To reduce maintenance effort and avoid writing duplicate informer code, use code-generator to generate clientset/informer/lister code.
124 lines
3.3 KiB
Go
124 lines
3.3 KiB
Go
/*
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Copyright 2019 The Fission Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package function
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import (
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"context"
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"fmt"
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"time"
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"github.com/pkg/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
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"github.com/fission/fission/pkg/fission-cli/cmd"
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flagkey "github.com/fission/fission/pkg/fission-cli/flag/key"
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"github.com/fission/fission/pkg/fission-cli/logdb"
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"github.com/fission/fission/pkg/fission-cli/util"
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)
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type LogSubCommand struct {
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cmd.CommandActioner
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}
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func Log(input cli.Input) error {
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return (&LogSubCommand{}).do(input)
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}
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func (opts *LogSubCommand) do(input cli.Input) error {
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dbType := input.String(flagkey.FnLogDBType)
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fnPod := input.String(flagkey.FnLogPod)
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logReverseQuery := !input.Bool(flagkey.FnLogFollow) && input.Bool(flagkey.FnLogReverseQuery)
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recordLimit := input.Int(flagkey.FnLogCount)
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if recordLimit <= 0 {
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recordLimit = 1000
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}
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f, err := opts.Client().V1().Function().Get(&metav1.ObjectMeta{
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Name: input.String(flagkey.FnName),
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Namespace: input.String(flagkey.NamespaceFunction),
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})
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if err != nil {
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return errors.Wrap(err, "error getting function")
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}
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server, err := util.GetApplicationUrl("application=fission-api")
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if err != nil {
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return err
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}
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// request the controller to establish a proxy server to the database.
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logDB, err := logdb.GetLogDB(dbType, server)
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if err != nil {
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return errors.Wrapf(err, "failed to get log database")
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}
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requestChan := make(chan struct{})
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responseChan := make(chan struct{})
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ctx := context.Background()
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go func(ctx context.Context, requestChan, responseChan chan struct{}) {
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t := time.Unix(0, 0*int64(time.Millisecond))
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for {
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select {
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case <-requestChan:
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logFilter := logdb.LogFilter{
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Pod: fnPod,
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Function: f.ObjectMeta.Name,
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FuncUid: string(f.ObjectMeta.UID),
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Since: t,
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Reverse: logReverseQuery,
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RecordLimit: recordLimit,
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}
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logEntries, err := logDB.GetLogs(logFilter)
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if err != nil {
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fmt.Printf("Error querying logs: %v", err)
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responseChan <- struct{}{}
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return
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}
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for _, logEntry := range logEntries {
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if input.Bool(flagkey.FnLogDetail) {
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fmt.Printf("Timestamp: %s\nNamespace: %s\nFunction Name: %s\nFunction ID: %s\nPod: %s\nContainer: %s\nStream: %s\nLog: %s\n---\n",
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logEntry.Timestamp, logEntry.Namespace, logEntry.FuncName, logEntry.FuncUid, logEntry.Pod, logEntry.Container, logEntry.Stream, logEntry.Message)
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} else {
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fmt.Printf("[%s] %s\n", logEntry.Timestamp, logEntry.Message)
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}
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t = logEntry.Timestamp
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}
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responseChan <- struct{}{}
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case <-ctx.Done():
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return
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}
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}
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}(ctx, requestChan, responseChan)
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for {
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requestChan <- struct{}{}
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time.Sleep(1 * time.Second)
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<-responseChan
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if !input.Bool(flagkey.FnLogFollow) {
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ctx.Done()
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break
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}
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}
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return nil
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}
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