modular format

.github/workflows/build-and-test.yaml

@@ -18,7 +18,7 @@ jobs:
  uses: actions/checkout@v3
 
  - name: Build
- run: go build -v ./...
+ run: make GOFLAGS="-v" build
 
  - name: Test
- run: go test -v ./...
+ run: make GOFLAGS="-v" test

.gitignore

@@ -95,3 +95,6 @@ conf/config.ini
 .licensei.cache
 
 .DS_Store
+
+formats/custom-impl
+go.work*

Dockerfile

@@ -1,4 +1,6 @@
-FROM golang:1.20-alpine3.17 as builder
+FROM golang:1.20-alpine3.18 as builder
+
+RUN apk -U add make
 
 WORKDIR /workspace
 
@@ -14,7 +16,7 @@ RUN go mod download
 ADD . .
 
 # Build
-RUN CGO_ENABLED=0 go build -a -o bin/loggen main.go
+RUN make build
 
 # Use distroless as minimal base image to package the manager binary
 # Refer to https://github.com/GoogleContainerTools/distroless for more details

Makefile

@@ -2,9 +2,13 @@
 BIN := ${PWD}/bin
 export PATH := ${BIN}:${PATH}
 
+CUSTOM_FORMATS := formats/custom
+
 LICENSEI := ${BIN}/licensei
 LICENSEI_VERSION = v0.8.0
 
+GOFLAGS =
+
 ${BIN}:
  mkdir -p ${BIN}
 
@@ -14,12 +18,32 @@ license-check: ${LICENSEI} ## Run license check
  ${LICENSEI} header
 
 .PHONY: license-cache
-license-cache: ${LICENSEI} ## Generate license cache
+license-cache: ${LICENSEI} go.work ## Generate license cache
  ${LICENSEI} cache
 
 .PHONY: check
 check: license-cache license-check
 
+go.work:
+ go work init . ${CUSTOM_FORMATS}
+
+.PHONY: reinit
+reinit:
+ rm -f go.work
+ @$(MAKE) go.work
+
+.PHONY: build
+build: go.work
+ CGO_ENABLED=0 go build ${GOFLAGS} -a -o ${BIN}/loggen main.go
+
+.PHONY: test
+test: go.work
+ go test ${GOFLAGS} ./...
+
+.PHONY: docker-run
+docker-run:
+ docker build . -t log-generator:local && docker run -p 11000:11000 log-generator:local
+
 ${LICENSEI}: ${LICENSEI}_${LICENSEI_VERSION} | ${BIN}
  ln -sf $(notdir $<) $@
 

formats/custom/go.mod

@@ -0,0 +1,18 @@
+module github.com/kube-logging/log-generator/formats/custom
+
+go 1.20
+
+require github.com/prometheus/client_golang v1.11.0
+
+require (
+ github.com/beorn7/perks v1.0.1 // indirect
+ github.com/cespare/xxhash/v2 v2.1.1 // indirect
+ github.com/golang/protobuf v1.5.2 // indirect
+ github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
+ github.com/prometheus/client_model v0.2.0 // indirect
+ github.com/prometheus/common v0.26.0 // indirect
+ github.com/prometheus/procfs v0.6.0 // indirect
+ golang.org/x/sys v0.5.0 // indirect
+ golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
+ google.golang.org/protobuf v1.28.1 // indirect
+)

formats/custom/go.sum

@@ -0,0 +1,138 @@
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
+github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
+github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
+github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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+golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0 h1:MUK/U/4lj1t1oPg0HfuXDN/Z1wv31ZJ/YcPiGccS4DU=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
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formats/custom/stub.go

@@ -0,0 +1,29 @@
+// Copyright © 2023 Kube logging authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License."""
+
+package custom
+
+import (
+ "github.com/kube-logging/log-generator/log"
+)
+
+// Formats returns supported template formats for a given type
+func Formats() map[string][]string {
+ return map[string][]string{}
+}
+
+// LogFactory creates log events for a log format and optionally randomises it
+func LogFactory(logType string, format string, randomise bool) (log.Log, error) {
+ return nil, nil
+}

formats/logfactory.go

@@ -0,0 +1,80 @@
+// Copyright © 2023 Kube logging authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License."""
+
+package formats
+
+import (
+ "github.com/kube-logging/log-generator/formats/custom"
+ "github.com/kube-logging/log-generator/formats/golang"
+ "github.com/kube-logging/log-generator/formats/syslog"
+ "github.com/kube-logging/log-generator/formats/web"
+ "github.com/kube-logging/log-generator/log"
+)
+
+func FormatsByType() map[string][]string {
+ response := map[string][]string{}
+ for t, f := range custom.Formats() {
+ response[t] = f
+ }
+ response["syslog"] = SyslogFormatNames()
+ response["web"] = WebFormatNames()
+ return response
+}
+
+func LogFactory(logType string, format string, randomise bool) (log.Log, error) {
+ switch logType {
+ case "syslog":
+ if randomise {
+ return NewRandomSyslog(format)
+ } else {
+ return NewSyslog(format)
+ }
+ case "web":
+ if randomise {
+ return NewRandomWeb(format)
+ } else {
+ return NewWeb(format)
+ }
+ default:
+ return custom.LogFactory(logType, format, randomise)
+ }
+}
+
+func NewSyslog(format string) (*log.LogTemplate, error) {
+ return log.NewLogTemplate(format, syslog.TemplateFS, syslog.SampleData())
+}
+
+func NewRandomSyslog(format string) (*log.LogTemplate, error) {
+ return log.NewLogTemplate(format, syslog.TemplateFS, syslog.RandomData())
+}
+
+func SyslogFormatNames() []string {
+ return log.FormatNames(syslog.TemplateFS)
+}
+
+func NewWeb(format string) (*log.LogTemplate, error) {
+ return log.NewLogTemplate(format, web.TemplateFS, web.SampleData())
+}
+
+func NewRandomWeb(format string) (*log.LogTemplate, error) {
+ return log.NewLogTemplate(format, web.TemplateFS, web.RandomData())
+}
+
+func WebFormatNames() []string {
+ return log.FormatNames(web.TemplateFS)
+}
+
+func NewGolangRandom(i golang.GolangLogIntensity) log.Log {
+ return golang.NewGolangLogRandom(i)
+}