Release 0.5.0

This updates the Docker build process to be more in line with current
standards for Go, and includes all the updates since 0.5.0.

Author: RobAtticus

Dockerfile

@@ -1,7 +1,16 @@
-FROM busybox
-
-MAINTAINER Erik Nordström <erik@timescale.com>
+# Build stage
+FROM golang:1.12.9-alpine AS builder
+COPY ./pkg prometheus-adapter/pkg
+COPY ./cmd prometheus-adapter/cmd
+COPY ./go.mod prometheus-adapter/go.mod
+COPY ./go.sum prometheus-adapter/go.sum
+RUN apk update && apk add --no-cache git \
+    && cd prometheus-adapter \
+    && go mod download \
+    && CGO_ENABLED=0 go build -a --ldflags '-w' -o /go/prometheus-postgresql-adapter ./cmd/prometheus-postgresql-adapter
 
-COPY prometheus-postgresql-adapter /
-
-ENTRYPOINT ["/prometheus-postgresql-adapter"]
+# Final image
+FROM busybox
+MAINTAINER Timescale https://www.timescale.com
+COPY --from=builder /go/prometheus-postgresql-adapter /
+ENTRYPOINT ["/prometheus-postgresql-adapter"]

Makefile

@@ -18,7 +18,7 @@ SOURCES:=$(shell find . -name '*.go'  | grep -v './vendor')
 
 TARGET:=prometheus-postgresql-adapter
 
-.PHONY: all clean build docker-image docker-push test prepare-for-docker-build
+.PHONY: all clean build docker-image docker-push test
 
 all: $(TARGET) version.properties
 
@@ -33,13 +33,7 @@ build: $(TARGET)
 $(TARGET): .target_os $(SOURCES)
 	GOOS=$(OS) GOARCH=${ARCH} CGO_ENABLED=0 go build -a --ldflags '-w' -o $@ ./cmd/$@
 
-prepare-for-docker-build:
-	$(eval OS=linux)
-ifneq ($(shell cat .target_os 2>/dev/null),linux)
-	rm -f $(TARGET) .target_os
-endif
-
-docker-image: prepare-for-docker-build prometheus-postgresql-adapter version.properties
+docker-image: version.properties
 	docker build -t $(ORGANIZATION)/$(TARGET):latest .
 	docker tag $(ORGANIZATION)/$(TARGET):latest $(ORGANIZATION)/$(TARGET):${VERSION}
 	docker tag $(ORGANIZATION)/$(TARGET):latest $(ORGANIZATION)/$(TARGET):${BRANCH}

go.mod

@@ -6,9 +6,7 @@ require (
 	github.com/go-kit/kit v0.9.0
 	github.com/gogo/protobuf v1.2.1
 	github.com/golang/snappy v0.0.1
-	github.com/google/pprof v0.0.0-20190723021845-34ac40c74b70 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.9.5 // indirect
-	github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6 // indirect
 	github.com/jamiealquiza/envy v1.1.0
 	github.com/lib/pq v1.2.0
 	github.com/prometheus/client_golang v1.0.0
@@ -17,7 +15,6 @@ require (
 	github.com/prometheus/procfs v0.0.3 // indirect
 	github.com/prometheus/prometheus v0.0.0-20190710134608-e5b22494857d
 	github.com/spf13/cobra v0.0.5 // indirect
-	golang.org/x/arch v0.0.0-20190312162104-788fe5ffcd8c // indirect
 	google.golang.org/genproto v0.0.0-20190716160619-c506a9f90610 // indirect
 	google.golang.org/grpc v1.22.1 // indirect
 )

go.sum

@@ -115,8 +115,6 @@ github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5a
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
 github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf/go.mod h1:HP5RmnzzSNb993RKQDq4+1A4ia9nllfqcQFTQJedwGI=
 github.com/google/pprof v0.0.0-20180605153948-8b03ce837f34/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
-github.com/google/pprof v0.0.0-20190723021845-34ac40c74b70 h1:XTnP8fJpa4Kvpw2qARB4KS9izqxPS0Sd92cDlY3uk+w=
-github.com/google/pprof v0.0.0-20190723021845-34ac40c74b70/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.1.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.1.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
@@ -152,8 +150,6 @@ github.com/hashicorp/mdns v1.0.0/go.mod h1:tL+uN++7HEJ6SQLQ2/p+z2pH24WQKWjBPkE0m
 github.com/hashicorp/memberlist v0.1.3/go.mod h1:ajVTdAv/9Im8oMAAj5G31PhhMCZJV2pPBoIllUwCN7I=
 github.com/hashicorp/serf v0.8.2/go.mod h1:6hOLApaqBFA1NXqRQAsxw9QxuDEvNxSQRwA/JwenrHc=
 github.com/hpcloud/tail v1.0.0/go.mod h1:ab1qPbhIpdTxEkNHXyeSf5vhxWSCs/tWer42PpOxQnU=
-github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6 h1:UDMh68UUwekSh5iP2OMhRRZJiiBccgV7axzUG8vi56c=
-github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
 github.com/influxdata/influxdb v0.0.0-20170331210902-15e594fc09f1/go.mod h1:qZna6X/4elxqT3yI9iZYdZrWWdeFOOprn86kgg4+IzY=
@@ -254,8 +250,6 @@ github.com/prometheus/procfs v0.0.3/go.mod h1:4A/X28fw3Fc593LaREMrKMqOKvUAntwMDa
 github.com/prometheus/prometheus v0.0.0-20180315085919-58e2a31db8de/go.mod h1:oAIUtOny2rjMX0OWN5vPR5/q/twIROJvdqnQKDdil/s=
 github.com/prometheus/prometheus v0.0.0-20190710134608-e5b22494857d h1:+89KS5XapfxQ/uKH9S24al72z0gp1N1jrK6HyDbEKWU=
 github.com/prometheus/prometheus v0.0.0-20190710134608-e5b22494857d/go.mod h1:11Mk7Gzjuke9GloQr0K9Rltwvz4fGeuU7/YlzqcHCPE=
-github.com/prometheus/prometheus v2.5.0+incompatible h1:7QPitgO2kOFG8ecuRn9O/4L9+10He72rVRJvMXrE9Hg=
-github.com/prometheus/prometheus v2.5.0+incompatible/go.mod h1:oAIUtOny2rjMX0OWN5vPR5/q/twIROJvdqnQKDdil/s=
 github.com/prometheus/tsdb v0.9.1/go.mod h1:oi49uRhEe9dPUTlS3JRZOwJuVi6tmh10QSgwXEyGCt4=
 github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
 github.com/rlmcpherson/s3gof3r v0.5.0/go.mod h1:s7vv7SMDPInkitQMuZzH615G7yWHdrU2r/Go7Bo71Rs=
@@ -295,8 +289,6 @@ github.com/xlab/treeprint v0.0.0-20180616005107-d6fb6747feb6/go.mod h1:ce1O1j6Ut
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.20.2/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
-golang.org/x/arch v0.0.0-20190312162104-788fe5ffcd8c h1:Rx/HTKi09myZ25t1SOlDHmHOy/mKxNAcu0hP1oPX9qM=
-golang.org/x/arch v0.0.0-20190312162104-788fe5ffcd8c/go.mod h1:flIaEI6LNU6xOCD5PaJvn9wGP0agmIOqjrtsKGRguv4=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181029021203-45a5f77698d3/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20181203042331-505ab145d0a9/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -344,6 +336,7 @@ golang.org/x/sys v0.0.0-20181205085412-a5c9d58dba9a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190209173611-3b5209105503/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e h1:nFYrTHrdrAOpShe27kaFHjsqYSEQ0KWqdWLu3xuZJts=
 golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -392,5 +385,4 @@ k8s.io/client-go v11.0.1-0.20190409021438-1a26190bd76a+incompatible/go.mod h1:7v
 k8s.io/klog v0.3.0/go.mod h1:Gq+BEi5rUBO/HRz0bTSXDUcqjScdoY3a9IHpCEIOOfk=
 k8s.io/kube-openapi v0.0.0-20180629012420-d83b052f768a/go.mod h1:BXM9ceUBTj2QnfH2MK1odQs778ajze1RxcmP6S8RVVc=
 k8s.io/utils v0.0.0-20190308190857-21c4ce38f2a7/go.mod h1:8k8uAuAQ0rXslZKaEWd0c3oVhZz7sSzSiPnVZayjIX0=
-rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
 sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=