cb-log

CB-Log is the logger library for the Cloud-Barista Multi-Cloud Framework.

1. install CB-Log library pkg

A. $ go get github.com/cloud-barista/cb-log

• cf) if meet errors
  • error msg: "gosrc/src/go.etcd.io/etcd/vendor/google.golang.org/grpc/clientconn.go:49:2: use of internal package google.golang.org/grpc/internal/resolver/dns not allowed"
  • sol: $ rm -rf $GOPATH/src/go.etcd.io/etcd/vendor/google.golang.org/grpc

B. export CBLOG_ROOT=~/go/src/github.com/cloud-barista/cb-log

2. example

A. https://github.com/cloud-barista/cb-log/blob/master/test/sample.go

3. test example

A. $ cd test

B. $ go run sample.go

  …
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:51 sample.go:25, main.main() - start.........
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:51 sample.go:45, main.createUser1() - start creating user.
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:51 sample.go:59, main.createUser1() - finish creating user.
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:51 sample.go:64, main.createUser2() - start creating user.
  [CB-SPIDER].[ERROR]: 2019-08-16 23:22:51 sample.go:69, main.createUser2() - DBMS Session is closed!!
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:51 sample.go:78, main.createUser2() - finish creating user.
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:51 sample.go:37, main.main() - end.........

  [CB-SPIDER].[INFO]: 2019-08-16 23:22:53 sample.go:25, main.main() - start.........
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:53 sample.go:45, main.createUser1() - start creating user.
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:53 sample.go:59, main.createUser1() - finish creating user.
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:53 sample.go:64, main.createUser2() - start creating user.
  [CB-SPIDER].[ERROR]: 2019-08-16 23:22:53 sample.go:69, main.createUser2() - DBMS Session is closed!!
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:53 sample.go:78, main.createUser2() - finish creating user.
  [CB-SPIDER].[INFO]: 2019-08-16 23:22:53 sample.go:37, main.main() - end.........
  …

C. set Log Level: info => error
i. $ vi ../conf/config.yaml

  …
  [CB-SPIDER].[ERROR]: 2019-08-16 23:22:57 sample.go:69, main.createUser2() - DBMS Session is closed!!

  [CB-SPIDER].[ERROR]: 2019-08-16 23:22:59 sample.go:69, main.createUser2() - DBMS Session is closed!!
  …