From fc824c13240e019d86c8e2095a38aa832f1d1a6f Mon Sep 17 00:00:00 2001
From: Anton Zadvorny <thcheetah@gmail.com>
Date: Sun, 1 Sep 2019 19:13:43 +0300
Subject: [PATCH] Install golangci-lint and goswag in separate layers with go
 modules

---
 Dockerfile | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/Dockerfile b/Dockerfile
index 2c85b10..12104fa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -6,6 +6,7 @@ ENV TERM=xterm-color
 ENV CGO_ENABLED=0
 ENV GOOS=linux
 ENV GOARCH=amd64
+ENV GO111MODULE=on
 
 ENV GOLANGCI=1.17.1
 ENV GOSWAG=1.6.2
@@ -19,19 +20,14 @@ RUN \
   echo "${TZ}" > /etc/timezone && date
 
 RUN \
-  # golangci install
-  go get -u -v github.com/golangci/golangci-lint/cmd/golangci-lint && \
-  cd /go/src/github.com/golangci/golangci-lint && \
-  git checkout v${GOLANGCI} && \
-  cd /go/src/github.com/golangci/golangci-lint/cmd/golangci-lint && \
-  go install -ldflags "-X 'main.version=$(git describe --tags)' -X 'main.commit=$(git rev-parse --short HEAD)' -X 'main.date=$(date)'" && \
-  # goswag install
-  go get -u -v github.com/swaggo/swag/cmd/swag && \
-  cd /go/src/github.com/swaggo/swag && \
-  git checkout v${GOSWAG} && \
-  cd /go/src/github.com/swaggo/swag/cmd/swag && \
-  go install && \
-  # show versions
-  go version && \
-  golangci-lint --version && \
+  go version
+
+RUN \
+  go get -u -v github.com/golangci/golangci-lint/cmd/golangci-lint@v${GOLANGCI} && \
+  go install -ldflags "-X 'main.version=$(git describe --tags)' -X 'main.commit=$(git rev-parse --short HEAD)' -X 'main.date=$(date)'" github.com/golangci/golangci-lint/cmd/golangci-lint && \
+  golangci-lint --version
+
+RUN \
+  go get -u -v github.com/swaggo/swag/cmd/swag@v${GOSWAG} && \
+  go install github.com/swaggo/swag/cmd/swag && \
   swag --version