Inject version & build-time info and show it on startup & on /version endpoint

.dockerignore

@@ -1,2 +1,4 @@
+.idea
 build
-codegen
+codegen
+var

Dockerfile.auth

@@ -1,5 +1,4 @@
 ## builder image
-
 FROM golang:1.10-alpine AS builder
 
 WORKDIR /go/src/github.com/crusttech/crust
@@ -8,18 +7,18 @@ ENV CGO_ENABLED=0
 
 COPY . .
 
-RUN mkdir /build; go build -o /build/auth cmd/auth/*.go
-
+RUN apk update && apk upgrade && apk add --no-cache git
+RUN mkdir /build; \
+    go build \
+        -ldflags "-X github.com/crusttech/crust/internal/version.BuildTime="`date +%FT%T%z`" -X github.com/crusttech/crust/internal/version.Version="`git describe --always --tags` \
+        -o /build/auth cmd/auth/*.go
 
 ## target image
-
 FROM alpine:3.7
 
 ENV PATH="/crust:{$PATH}"
 WORKDIR /crust
 
-# @todo copy crm/types, migrations
-
 COPY --from=builder /build/* /crust/
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
 

Dockerfile.crm

@@ -1,5 +1,4 @@
 ## builder image
-
 FROM golang:1.10-alpine AS builder
 
 WORKDIR /go/src/github.com/crusttech/crust
@@ -8,18 +7,18 @@ ENV CGO_ENABLED=0
 
 COPY . .
 
-RUN mkdir /build; go build -o /build/crm cmd/crm/*.go
-
+RUN apk update && apk upgrade && apk add --no-cache git
+RUN mkdir /build; \
+    go build \
+        -ldflags "-X github.com/crusttech/crust/internal/version.BuildTime="`date +%FT%T%z`" -X github.com/crusttech/crust/internal/version.Version="`git describe --always --tags` \
+        -o /build/crm cmd/crm/*.go
 
 ## target image
-
 FROM alpine:3.7
 
 ENV PATH="/crust:{$PATH}"
 WORKDIR /crust
 
-# @todo copy crm/types, migrations
-
 COPY --from=builder /build/* /crust/
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
 

Dockerfile.sam

@@ -1,5 +1,4 @@
 ## builder image
-
 FROM golang:1.10-alpine AS builder
 
 WORKDIR /go/src/github.com/crusttech/crust
@@ -8,18 +7,18 @@ ENV CGO_ENABLED=0
 
 COPY . .
 
-RUN mkdir /build; go build -o /build/sam cmd/sam/*.go
-
+RUN apk update && apk upgrade && apk add --no-cache git
+RUN mkdir /build; \
+    go build \
+        -ldflags "-X github.com/crusttech/crust/internal/version.BuildTime="`date +%FT%T%z`" -X github.com/crusttech/crust/internal/version.Version="`git describe --always --tags` \
+        -o /build/sam cmd/sam/*.go
 
 ## target image
-
 FROM alpine:3.7
 
 ENV PATH="/crust:{$PATH}"
 WORKDIR /crust
 
-# @todo copy crm/types, migrations
-
 COPY --from=builder /build/* /crust/
 COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt
 

auth/routes.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/crusttech/crust/internal/config"
 	"github.com/crusttech/crust/internal/metrics"
+	"github.com/crusttech/crust/internal/version"
 )
 
 func mountRoutes(r chi.Router, opts *config.HTTP, mounts ...func(r chi.Router)) {
@@ -30,6 +31,7 @@ func mountSystemRoutes(r chi.Router, opts *config.HTTP) {
 		r.Handle("/metrics", metrics.Handler())
 	}
 	r.Mount("/debug", middleware.Profiler())
+	r.Get("/version", version.HttpHandler)
 }
 
 func printRoutes(r chi.Router, opts *config.HTTP) {

cmd/sam/main.go

@@ -8,11 +8,14 @@ import (
 
 	"github.com/crusttech/crust/internal/auth"
 	"github.com/crusttech/crust/internal/rbac"
+	"github.com/crusttech/crust/internal/version"
 )
 
 func main() {
 	config := flags("sam", service.Flags, auth.Flags, rbac.Flags)
 
+	log.Printf("Starting sam, version: %v, built on: %v", version.Version, version.BuildTime)
+
 	// log to stdout not stderr
 	log.SetOutput(os.Stdout)
 	log.SetFlags(log.LstdFlags | log.Lshortfile)

crm/routes.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/crusttech/crust/internal/config"
 	"github.com/crusttech/crust/internal/metrics"
+	"github.com/crusttech/crust/internal/version"
 )
 
 func mountRoutes(r chi.Router, opts *config.HTTP, mounts ...func(r chi.Router)) {
@@ -30,6 +31,7 @@ func mountSystemRoutes(r chi.Router, opts *config.HTTP) {
 		r.Handle("/metrics", metrics.Handler())
 	}
 	r.Mount("/debug", middleware.Profiler())
+	r.Get("/version", version.HttpHandler)
 }
 
 func printRoutes(r chi.Router, opts *config.HTTP) {

internal/version/version.go

@@ -0,0 +1,19 @@
+package version
+
+import (
+	"net/http"
+
+	"github.com/titpetric/factory/resputil"
+)
+
+var (
+	BuildTime = "undefined"
+	Version   = "undefined"
+)
+
+func HttpHandler(w http.ResponseWriter, r *http.Request) {
+	resputil.JSON(w, struct {
+		BuildTime string `json:"buildTime"`
+		Version   string `json:"version"`
+	}{BuildTime, Version})
+}

sam/routes.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/crusttech/crust/internal/config"
 	"github.com/crusttech/crust/internal/metrics"
+	"github.com/crusttech/crust/internal/version"
 )
 
 func mountRoutes(r chi.Router, opts *config.HTTP, mounts ...func(r chi.Router)) {
@@ -32,6 +33,7 @@ func mountSystemRoutes(r chi.Router, opts *config.HTTP) {
 		r.Handle("/metrics", metrics.Handler())
 	}
 	r.Mount("/debug", middleware.Profiler())
+	r.Get("/version", version.HttpHandler)
 }
 
 func printRoutes(r chi.Router, opts *config.HTTP) {

sam/service/channel.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"fmt"
 
-	"github.com/davecgh/go-spew/spew"
 	"github.com/pkg/errors"
 	"github.com/titpetric/factory"
 
@@ -121,8 +120,6 @@ func (svc *channel) preloadExtras(cc types.ChannelSet) (err error) {
 		return
 	}
 
-	spew.Dump(cc.FindById(55955117148471560))
-
 	return
 }