Skaffold for Fission (#1172)

Skaffold for development of Fission and switching to multi-stage Dockerfile for all components.

fission-bundle/Dockerfile

@@ -1,3 +0,0 @@
-FROM alpine:3.4
-RUN apk add --update ca-certificates
-ADD fission-bundle /

fission-bundle/Dockerfile.fission-bundle

@@ -0,0 +1,28 @@
+FROM golang:1.11-alpine as builder
+RUN apk add bash ca-certificates git gcc g++ libc-dev
+
+ARG GITCOMMIT=unknown
+# E.g. GITCOMMIT=$(git rev-parse HEAD)
+
+ARG BUILDVERSION=unknown
+# E.g. BUILDVERSION=$(git rev-parse HEAD)
+
+ARG BUILDDATE=unknown
+# E.g. BUILDDATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
+
+ARG GOPKG=github.com/fission/fission
+COPY . /go/src/${GOPKG}
+RUN rm -f /go/src/${GOPKG}/Dockerfile*
+WORKDIR /go/src/${GOPKG}/fission-bundle
+ENV GO111MODULE=on
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -a -mod vendor \
+    -o /go/bin/fission-bundle \
+    -gcflags=-trimpath=$GOPATH \
+    -asmflags=-trimpath=$GOPATH \
+    -ldflags "-X github.com/fission/fission.GitCommit=${GITCOMMIT} -X github.com/fission/fission.BuildDate=${BUILDDATE} -X github.com/fission/fission.Version=${BUILDVERSION}"
+
+FROM alpine:3.4
+RUN apk add --update ca-certificates
+COPY --from=builder /go/bin/fission-bundle /
+
+ENTRYPOINT ["/fission-bundle"]

fission-bundle/build.sh

@@ -1,17 +0,0 @@
-#!/bin/sh
-version=$1
-if [ -z $version ]; then
-    version=$(git rev-parse HEAD)
-fi
-
-date=$2
-if [ -z $date ]; then
-    date=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
-fi
-
-gitcommit=$3
-if [ -z $gitcommit ]; then
-    gitcommit=$(git rev-parse HEAD)
-fi
-
-CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -gcflags=-trimpath=$GOPATH -asmflags=-trimpath=$GOPATH -ldflags "-X github.com/fission/fission.GitCommit=$gitcommit -X github.com/fission/fission.BuildDate=$date -X github.com/fission/fission.Version=$version"

fission-bundle/main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"flag"
 	"fmt"
 	"log"
 	"os"
@@ -150,6 +151,13 @@ func registerTraceExporter(logger *zap.Logger, arguments map[string]interface{})
 }
 
 func main() {
+	// From https://github.com/containous/traefik/pull/1817/files
+	// Tell glog to log into STDERR. Otherwise, we risk
+	// certain kinds of API errors getting logged into a directory not
+	// available in a `FROM scratch` Docker container, causing glog to abort
+	// hard with an exit code > 0.
+	flag.Set("logtostderr", "true")
+
 	usage := `fission-bundle: Package of all fission microservices: controller, router, executor.
 
 Use it to start one or more of the fission servers: