Remove vendoring since we have switched to go modules (#166)

Update Dockerfile to use go mod
Add .gitignore

Signed-off-by: Prasad Ghangal <prasad.ghangal@gmail.com>

.gitignore

@@ -0,0 +1,15 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+vendor/

.travis.yml

@@ -6,6 +6,9 @@ go:
 services:
   - docker
 
+env:
+  - GO111MODULE=on
+
 install:
   - go get -u golang.org/x/lint/golint
   - curl https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get > get_helm.sh

build/Dockerfile

@@ -1,28 +1,33 @@
 # Development image
-FROM golang:alpine AS BUILD-ENV
+FROM golang:1.12-alpine3.10 AS BUILD-ENV
 
 ARG GOOS_VAL 
 ARG GOARCH_VAL
 
-RUN mkdir -p /go/src/github.com/infracloudio/botkube/vendor && \
-    mkdir -p /go/src/github.com/infracloudio/botkube/cmd && \
-    mkdir -p /go/src/github.com/infracloudio/botkube/pkg
+# Add git
+RUN apk update && apk add git
 
-COPY vendor/ /go/src/github.com/infracloudio/botkube/vendor
-COPY cmd/ /go/src/github.com/infracloudio/botkube/cmd
-COPY pkg/ /go/src/github.com/infracloudio/botkube/pkg
+WORKDIR /app
 
-RUN cd /go/src/github.com/infracloudio/botkube/cmd/botkube && \
-    GOOS=${GOOS_VAL} GOARCH=${GOARCH_VAL} go build -o /go/bin/botkube
+# Download dependencies
+COPY go.mod go.sum ./
+RUN go mod download
 
+# Copy source
+COPY . .
+
+# Build binary
+RUN GOOS=${GOOS_VAL} GOARCH=${GOARCH_VAL} go build -o /go/bin/botkube ./cmd/botkube 
+
+# Install kubectl binary
 ENV KUBE_LATEST_VERSION="v1.13.0"
 
 RUN apk add --no-cache ca-certificates bash git \
     && wget -q https://storage.googleapis.com/kubernetes-release/release/${KUBE_LATEST_VERSION}/bin/linux/amd64/kubectl -O /usr/local/bin/kubectl \
     && chmod +x /usr/local/bin/kubectl
 
 # Production image
-FROM alpine
+FROM alpine:3.10
 
 COPY --from=BUILD-ENV /go/bin/botkube /go/bin/botkube
 COPY --from=BUILD-ENV /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certificates.crt

go.mod

@@ -21,8 +21,6 @@ require (
 	github.com/imdario/mergo v0.3.7 // indirect
 	github.com/json-iterator/go v1.1.7 // indirect
 	github.com/lib/pq v1.2.0 // indirect
-	github.com/lusis/go-slackbot v0.0.0-20180109053408-401027ccfef5 // indirect
-	github.com/lusis/slack-test v0.0.0-20190426140909-c40012f20018 // indirect
 	github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e // indirect
 	github.com/mattermost/gorp v2.0.0+incompatible // indirect
 	github.com/mattermost/mattermost-server v5.11.1+incompatible

go.sum

@@ -101,10 +101,6 @@ github.com/lann/ps v0.0.0-20150810152359-62de8c46ede0 h1:P6pPBnrTSX3DEVR4fDembhR
 github.com/lann/ps v0.0.0-20150810152359-62de8c46ede0/go.mod h1:vmVJ0l/dxyfGW6FmdpVm2joNMFikkuWg0EoCKLGUMNw=
 github.com/lib/pq v1.2.0 h1:LXpIM/LZ5xGFhOpXAQUIMM1HdyqzVYM13zNdjCEEcA0=
 github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
-github.com/lusis/go-slackbot v0.0.0-20180109053408-401027ccfef5 h1:AsEBgzv3DhuYHI/GiQh2HxvTP71HCCE9E/tzGUzGdtU=
-github.com/lusis/go-slackbot v0.0.0-20180109053408-401027ccfef5/go.mod h1:c2mYKRyMb1BPkO5St0c/ps62L4S0W2NAkaTXj9qEI+0=
-github.com/lusis/slack-test v0.0.0-20190426140909-c40012f20018 h1:MNApn+Z+fIT4NPZopPfCc1obT6aY3SVM6DOctz1A9ZU=
-github.com/lusis/slack-test v0.0.0-20190426140909-c40012f20018/go.mod h1:sFlOUpQL1YcjhFVXhg1CG8ZASEs/Mf1oVb6H75JL/zg=
 github.com/mailru/easyjson v0.0.0-20160728113105-d5b7844b561a/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
 github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e h1:hB2xlXdHp/pmPZq0y3QnmWAArdw9PqbmotexnWx/FU8=
 github.com/mailru/easyjson v0.0.0-20190626092158-b2ccc519800e/go.mod h1:C1wdFJiN94OJF2b5HbByQZoLdCWB1Yqtg26g4irojpc=
@@ -125,8 +121,6 @@ github.com/munnerz/goautoneg v0.0.0-20120707110453-a547fc61f48d/go.mod h1:+n7T8m
 github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f/go.mod h1:ZdcZmHo+o7JKHSa8/e818NopupXU1YMK5fe1lsApnBw=
 github.com/nicksnyder/go-i18n v1.10.1 h1:isfg77E/aCD7+0lD/D00ebR2MV5vgeQ276WYyDaCRQc=
 github.com/nicksnyder/go-i18n v1.10.1/go.mod h1:e4Di5xjP9oTVrC6y3C7C0HoSYXjSbhh/dU0eUV32nB4=
-github.com/nlopes/slack v0.4.0 h1:OVnHm7lv5gGT5gkcHsZAyw++oHVFihbjWbL3UceUpiA=
-github.com/nlopes/slack v0.4.0/go.mod h1:jVI4BBK3lSktibKahxBF74txcK2vyvkza1z/+rRnVAM=
 github.com/nlopes/slack v0.5.1-0.20190623232825-2891986e2a3e h1:4X/3/ywN6f+XITaDoI9GjXbF7MHk7fuunXsEWZX1GLc=
 github.com/nlopes/slack v0.5.1-0.20190623232825-2891986e2a3e/go.mod h1:JzQ9m3PMAqcpeCam7UaHSuBuupz7CmpjehYMayT6YOk=
 github.com/olivere/elastic v6.2.21+incompatible h1:QnTuofzxOCV5FrYLywjkMxOmOWhAeild1VXxKRksK9Y=