Dockerfile, drone: Go 1.13rc1

Dockerfile

@@ -1,6 +1,6 @@
-FROM golang:1.12.9-alpine AS build
+FROM golang:1.13rc1-alpine AS build
 
-ARG GOPROXY=https://proxy.golang.org
+ARG GOPROXY=https://proxy.golang.org,https://gocenter.io,direct
 
 ENV  CGO_ENABLED 0
 WORKDIR /code

drone/ci.jsonnet

@@ -1,5 +1,5 @@
 // the first version is used to build the binary that gets shipped to Docker Hub.
-local go_versions = ['1.12.9', '1.11.13', '1.13beta1'];
+local go_versions = ['1.13rc1', '1.12.9', '1.11.13'];
 
 local goproxy = 'https://proxy.golang.org';
 

drone/ci.yml

@@ -2,7 +2,7 @@
 # DO NOT MODIFY - AUTO GENERATED
 
 kind: pipeline
-name: go-1.12.9
+name: go-1.13rc1
 
 platform:
   os: linux
@@ -14,7 +14,7 @@ workspace:
 
 steps:
 - name: mod-download
-  image: golang:1.12.9
+  image: golang:1.13rc1
   commands:
   - go mod download
   environment:
@@ -23,12 +23,12 @@ steps:
   - clone
 
 - name: coverage
-  image: golang:1.12.9
+  image: golang:1.13rc1
   commands:
   - apt update
   - apt install -y redis-server
-  - "redis-server &>/dev/null &"
-  - "timeout 10 sh -c \"while ! redis-cli ping; do echo waiting for redis-server to start; sleep 1; done\""
+  - redis-server &>/dev/null &
+  - timeout 10 sh -c "while ! redis-cli ping; do echo waiting for redis-server to start; sleep 1; done"
   - make gocoverage
   depends_on:
   - mod-download
@@ -42,7 +42,7 @@ steps:
   - mod-download
 
 - name: build
-  image: golang:1.12.9
+  image: golang:1.13rc1
   commands:
   - make build
   environment:
@@ -92,7 +92,7 @@ steps:
       from_secret: docker_username
   when:
     ref:
-    - "refs/tags/*"
+    - refs/tags/*
     - refs/heads/master
   depends_on:
   - coverage
@@ -116,7 +116,7 @@ steps:
 
 ---
 kind: pipeline
-name: go-1.11.13
+name: go-1.12.9
 
 platform:
   os: linux
@@ -128,7 +128,7 @@ workspace:
 
 steps:
 - name: mod-download
-  image: golang:1.11.13
+  image: golang:1.12.9
   commands:
   - go mod download
   environment:
@@ -137,12 +137,12 @@ steps:
   - clone
 
 - name: coverage
-  image: golang:1.11.13
+  image: golang:1.12.9
   commands:
   - apt update
   - apt install -y redis-server
-  - "redis-server &>/dev/null &"
-  - "timeout 10 sh -c \"while ! redis-cli ping; do echo waiting for redis-server to start; sleep 1; done\""
+  - redis-server &>/dev/null &
+  - timeout 10 sh -c "while ! redis-cli ping; do echo waiting for redis-server to start; sleep 1; done"
   - make gocoverage
   depends_on:
   - mod-download
@@ -156,7 +156,7 @@ steps:
   - mod-download
 
 - name: build
-  image: golang:1.11.13
+  image: golang:1.12.9
   commands:
   - make build
   environment:
@@ -182,7 +182,7 @@ steps:
 
 ---
 kind: pipeline
-name: go-1.13beta1
+name: go-1.11.13
 
 platform:
   os: linux
@@ -194,7 +194,7 @@ workspace:
 
 steps:
 - name: mod-download
-  image: golang:1.13beta1
+  image: golang:1.11.13
   commands:
   - go mod download
   environment:
@@ -203,12 +203,12 @@ steps:
   - clone
 
 - name: coverage
-  image: golang:1.13beta1
+  image: golang:1.11.13
   commands:
   - apt update
   - apt install -y redis-server
-  - "redis-server &>/dev/null &"
-  - "timeout 10 sh -c \"while ! redis-cli ping; do echo waiting for redis-server to start; sleep 1; done\""
+  - redis-server &>/dev/null &
+  - timeout 10 sh -c "while ! redis-cli ping; do echo waiting for redis-server to start; sleep 1; done"
   - make gocoverage
   depends_on:
   - mod-download
@@ -222,7 +222,7 @@ steps:
   - mod-download
 
 - name: build
-  image: golang:1.13beta1
+  image: golang:1.11.13
   commands:
   - make build
   environment: