Update to Go 1.15.0 toolchain.

CHANGELOG.md

@@ -10,14 +10,15 @@ The format is based on [keep a changelog](http://keepachangelog.com) and this pr
 - New runtime multi-update function.
 
 ### Changed
+- Build with Go 1.15.0 release.
 - Sanitize metric names and properties fields.
 - Wallet operations now use int64 values for all numeric operations.
 - Update to nakama-common 1.7.3 release.
 
 ### Fixed
 - Prevent bad presence list input to dispatcher message broadcasts from causing unexpected errors.
 - Fix an issue in the Lua runtime nk module's `jwt_generate` function that would prevent it from accepting a key in 'RS256' format.
-- Fix an issue in the Lua runtime nk module's `rsaSHA256Hash` function that would prevent it from parsing the input private key.   
+- Fix an issue in the Lua runtime nk module's `rsaSHA256Hash` function that would prevent it from parsing the input private key.
 
 ## [2.12.0] - 2020-05-25
 ### Added

build/Dockerfile

@@ -15,7 +15,7 @@
 # docker build "$PWD" --build-arg commit="$(git rev-parse --short HEAD)" --build-arg version=v2.1.1 -t heroiclabs/nakama:2.1.1
 # docker build "$PWD" --build-arg commit="$(git rev-parse --short HEAD)" --build-arg version="v2.1.1-$(git rev-parse --short HEAD)" -t heroiclabs/nakama-prerelease:"2.1.1-$(git rev-parse --short HEAD)"
 
-FROM golang:1.14.3-buster as builder
+FROM golang:1.15.0-buster as builder
 
 ARG commit
 ARG version

build/pluginbuilder/Dockerfile

@@ -15,7 +15,7 @@
 # docker build "$PWD" --file ./Dockerfile.pluginbuilder --build-arg commit="$(git rev-parse --short HEAD)" --build-arg version=v2.1.1 -t heroiclabs/nakama-pluginbuilder:2.1.1
 # docker build "$PWD" --file ./Dockerfile.pluginbuilder --build-arg commit="$(git rev-parse --short HEAD)" --build-arg version="v2.1.1-$(git rev-parse --short HEAD)" -t heroiclabs/nakama-prerelease:"2.1.1-$(git rev-parse --short HEAD)"
 
-FROM golang:1.14.3-buster as builder
+FROM golang:1.15.0-buster as builder
 
 MAINTAINER Heroic Labs <[email protected]>