Ta-Ching ChenandGitHub
bfbb80efcf
This PR adds an interface for controller API client, it allows us to implement mock API client for unit testing with ease and we are able to generate spec file without accessing the real Fission server.
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.Metadata.Name,
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FuncUid: string(f.Metadata.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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