[build] upgrade golang and builder

docker/m3dbnode/Dockerfile

@@ -3,7 +3,7 @@
 # dependency tool we have. Until we migrate to a new version of glide or go
 # modules, we need to use this older base image.
 # https://github.com/m3db/m3/issues/628
-FROM golang:1.12-alpine3.9 AS builder
+FROM golang:1.14-alpine3.11 AS builder
 LABEL maintainer="The M3DB Authors <[email protected]>"
 
 # Install Glide
@@ -19,9 +19,11 @@ RUN cd /go/src/github.com/m3db/m3/ && \
     make m3dbnode-linux-amd64
 
 # Stage 2: lightweight "release"
-FROM alpine:latest
+FROM alpine:3.11
 LABEL maintainer="The M3DB Authors <[email protected]>"
 
+ENV GODEBUG madvdontneed=1
+
 EXPOSE 2379/tcp 2380/tcp 7201/tcp 7203/tcp 9000-9004/tcp
 
 RUN apk add --no-cache curl jq

docker/m3dbnode/Dockerfile-setcap

@@ -1,5 +1,5 @@
 # stage 1: build
-FROM golang:1.12-alpine3.9 AS builder
+FROM golang:1.14-alpine3.11 AS builder
 LABEL maintainer="The M3DB Authors <[email protected]>"
 
 # Install Glide
@@ -15,7 +15,7 @@ RUN cd /go/src/github.com/m3db/m3/ && \
     make m3dbnode-linux-amd64
 
 # Stage 2: lightweight "release"
-FROM alpine:latest
+FROM alpine:3.11
 LABEL maintainer="The M3DB Authors <[email protected]>"
 
 EXPOSE 2379/tcp 2380/tcp 7201/tcp 7203/tcp 9000-9004/tcp

docker/m3dbnode/development.Dockerfile

@@ -1,4 +1,8 @@
+<<<<<<< Updated upstream
 FROM alpine:latest
+=======
+FROM alpine:3.11
+>>>>>>> Stashed changes
 LABEL maintainer="The M3DB Authors <[email protected]>"
 
 RUN apk add --no-cache curl jq