Upgrade Go, use modules and enable CI on GitHub Actions

.github/workflows/ci.yml

@@ -0,0 +1,43 @@
+name: CI
+on:
+  pull_request:
+    types: [opened, reopened]
+  push:
+    branches: ["**"]
+    tags:
+      - "v[0-9]+.[0-9]+.[0-9]+"
+      - "v[0-9]+.[0-9]+.[0-9]+-*"
+
+jobs:
+  test:
+    name: Run tests
+    runs-on: ubuntu-20.04
+    services:
+      consul:
+        image: consul:1.9.13
+        ports: [ "8500:8500" ]
+        env:
+          CONSUL_LOCAL_CONFIG: '{"session_ttl_min": "1s"}'
+          CONSUL_BIND_INTERFACE: eth0
+      etcd:
+        # 3.3.x is the newevest version that works without code changes
+        image: quay.io/coreos/etcd:v3.3.27
+        ports: [ "4001:4001" ]
+        env:
+          ETCD_ADVERTISE_CLIENT_URLS: http://127.0.0.1:4001
+          ETCD_LISTEN_CLIENT_URLS: http://0.0.0.0:4001
+      zookeeper:
+        image: zookeeper:3.7.0
+        ports: [ "2181:2181" ]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: '^1.17.5'
+      - run: cd tools && go install github.com/GeertJohan/fgt github.com/mattn/goveralls golang.org/x/lint golang.org/x/tools/cmd/cover
+      - run: script/validate-gofmt
+      - run: go vet ./...
+      - run: go test -v -race ./...
+        env:
+          LIBKV_TEST_SHORT_TIMEOUT: 10s
+      - run: script/coverage

go.mod

@@ -0,0 +1,57 @@
+module github.com/docker/libkv
+
+go 1.17
+
+require (
+	github.com/coreos/etcd v3.3.25+incompatible
+	github.com/go-zookeeper/zk v1.0.2
+	github.com/hashicorp/consul v0.5.2
+	github.com/stretchr/testify v1.7.0
+	go.etcd.io/bbolt v1.3.6
+)
+
+require (
+	github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310 // indirect
+	github.com/coreos/bbolt v1.3.3 // indirect
+	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf // indirect
+	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
+	github.com/dustin/go-humanize v1.0.0 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/gorilla/websocket v1.4.2 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway v1.16.0 // indirect
+	github.com/hashicorp/go-msgpack v0.5.3 // indirect
+	github.com/hashicorp/golang-lru v0.5.0 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/jonboulle/clockwork v0.2.2 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/kr/pretty v0.1.0 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_golang v1.11.0 // indirect
+	github.com/soheilhy/cmux v0.1.5 // indirect
+	github.com/stretchr/objx v0.1.1 // indirect
+	github.com/tmc/grpc-websocket-proxy v0.0.0-20201229170055-e5319fda7802 // indirect
+	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
+	go.uber.org/zap v1.19.1 // indirect
+	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4 // indirect
+	golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40 // indirect
+	golang.org/x/time v0.0.0-20211116232009-f0f3c7e86c11 // indirect
+	google.golang.org/genproto v0.0.0-20211208223120-3a66f561d7aa // indirect
+	google.golang.org/grpc v1.40.0 // indirect
+	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+	sigs.k8s.io/yaml v1.3.0 // indirect
+)
+
+replace google.golang.org/grpc => google.golang.org/grpc v1.23.0