Update Go to 1.12 (GA)

[tianon]

docker-library/golang#264

[tao12345666333]

LGTM thanks.

[tianon]

Diff:

diff --git a/_bashbrew-arches b/_bashbrew-arches
index 224c43b..60baabd 100644
--- a/_bashbrew-arches
+++ b/_bashbrew-arches
@@ -1,32 +1,26 @@
-golang:1.10-alpine3.8 @ amd64
-golang:1.10-alpine3.8 @ arm32v6
-golang:1.10-alpine3.8 @ arm64v8
-golang:1.10-alpine3.8 @ i386
-golang:1.10-alpine3.8 @ ppc64le
-golang:1.10-alpine3.8 @ s390x
-golang:1.10-alpine @ amd64
-golang:1.10-alpine @ arm32v6
-golang:1.10-alpine @ arm64v8
-golang:1.10-alpine @ i386
-golang:1.10-alpine @ ppc64le
-golang:1.10-alpine @ s390x
-golang:1.10-nanoserver-sac2016 @ windows-amd64
-golang:1.10-stretch @ amd64
-golang:1.10-stretch @ arm32v7
-golang:1.10-stretch @ arm64v8
-golang:1.10-stretch @ i386
-golang:1.10-stretch @ ppc64le
-golang:1.10-stretch @ s390x
-golang:1.10-windowsservercore-1709 @ windows-amd64
-golang:1.10-windowsservercore-1803 @ windows-amd64
-golang:1.10-windowsservercore-1809 @ windows-amd64
-golang:1.10-windowsservercore-ltsc2016 @ windows-amd64
-golang:alpine3.8 @ amd64
-golang:alpine3.8 @ arm32v6
-golang:alpine3.8 @ arm64v8
-golang:alpine3.8 @ i386
-golang:alpine3.8 @ ppc64le
-golang:alpine3.8 @ s390x
+golang:1.11-alpine3.8 @ amd64
+golang:1.11-alpine3.8 @ arm32v6
+golang:1.11-alpine3.8 @ arm64v8
+golang:1.11-alpine3.8 @ i386
+golang:1.11-alpine3.8 @ ppc64le
+golang:1.11-alpine3.8 @ s390x
+golang:1.11-alpine @ amd64
+golang:1.11-alpine @ arm32v6
+golang:1.11-alpine @ arm64v8
+golang:1.11-alpine @ i386
+golang:1.11-alpine @ ppc64le
+golang:1.11-alpine @ s390x
+golang:1.11-nanoserver-sac2016 @ windows-amd64
+golang:1.11-stretch @ amd64
+golang:1.11-stretch @ arm32v7
+golang:1.11-stretch @ arm64v8
+golang:1.11-stretch @ i386
+golang:1.11-stretch @ ppc64le
+golang:1.11-stretch @ s390x
+golang:1.11-windowsservercore-1709 @ windows-amd64
+golang:1.11-windowsservercore-1803 @ windows-amd64
+golang:1.11-windowsservercore-1809 @ windows-amd64
+golang:1.11-windowsservercore-ltsc2016 @ windows-amd64
 golang:alpine @ amd64
 golang:alpine @ arm32v6
 golang:alpine @ arm64v8
@@ -34,29 +28,6 @@ golang:alpine @ i386
 golang:alpine @ ppc64le
 golang:alpine @ s390x
 golang:nanoserver-sac2016 @ windows-amd64
-golang:rc-alpine3.8 @ amd64
-golang:rc-alpine3.8 @ arm32v6
-golang:rc-alpine3.8 @ arm64v8
-golang:rc-alpine3.8 @ i386
-golang:rc-alpine3.8 @ ppc64le
-golang:rc-alpine3.8 @ s390x
-golang:rc-alpine @ amd64
-golang:rc-alpine @ arm32v6
-golang:rc-alpine @ arm64v8
-golang:rc-alpine @ i386
-golang:rc-alpine @ ppc64le
-golang:rc-alpine @ s390x
-golang:rc-nanoserver-sac2016 @ windows-amd64
-golang:rc-stretch @ amd64
-golang:rc-stretch @ arm32v7
-golang:rc-stretch @ arm64v8
-golang:rc-stretch @ i386
-golang:rc-stretch @ ppc64le
-golang:rc-stretch @ s390x
-golang:rc-windowsservercore-1709 @ windows-amd64
-golang:rc-windowsservercore-1803 @ windows-amd64
-golang:rc-windowsservercore-1809 @ windows-amd64
-golang:rc-windowsservercore-ltsc2016 @ windows-amd64
 golang:stretch @ amd64
 golang:stretch @ arm32v7
 golang:stretch @ arm64v8
diff --git a/_bashbrew-list b/_bashbrew-list
index ecdae77..05b108b 100644
--- a/_bashbrew-list
+++ b/_bashbrew-list
@@ -1,6 +1,5 @@
 golang:1
 golang:1-alpine
-golang:1-alpine3.8
 golang:1-alpine3.9
 golang:1-nanoserver
 golang:1-nanoserver-sac2016
@@ -10,30 +9,6 @@ golang:1-windowsservercore-1709
 golang:1-windowsservercore-1803
 golang:1-windowsservercore-1809
 golang:1-windowsservercore-ltsc2016
-golang:1.10
-golang:1.10-alpine
-golang:1.10-alpine3.8
-golang:1.10-alpine3.9
-golang:1.10-nanoserver
-golang:1.10-nanoserver-sac2016
-golang:1.10-stretch
-golang:1.10-windowsservercore
-golang:1.10-windowsservercore-1709
-golang:1.10-windowsservercore-1803
-golang:1.10-windowsservercore-1809
-golang:1.10-windowsservercore-ltsc2016
-golang:1.10.8
-golang:1.10.8-alpine
-golang:1.10.8-alpine3.8
-golang:1.10.8-alpine3.9
-golang:1.10.8-nanoserver
-golang:1.10.8-nanoserver-sac2016
-golang:1.10.8-stretch
-golang:1.10.8-windowsservercore
-golang:1.10.8-windowsservercore-1709
-golang:1.10.8-windowsservercore-1803
-golang:1.10.8-windowsservercore-1809
-golang:1.10.8-windowsservercore-ltsc2016
 golang:1.11
 golang:1.11-alpine
 golang:1.11-alpine3.8
@@ -58,48 +33,33 @@ golang:1.11.5-windowsservercore-1709
 golang:1.11.5-windowsservercore-1803
 golang:1.11.5-windowsservercore-1809
 golang:1.11.5-windowsservercore-ltsc2016
-golang:1.12rc1
-golang:1.12rc1-alpine
-golang:1.12rc1-alpine3.8
-golang:1.12rc1-alpine3.9
-golang:1.12rc1-nanoserver
-golang:1.12rc1-nanoserver-sac2016
-golang:1.12rc1-stretch
-golang:1.12rc1-windowsservercore
-golang:1.12rc1-windowsservercore-1709
-golang:1.12rc1-windowsservercore-1803
-golang:1.12rc1-windowsservercore-1809
-golang:1.12rc1-windowsservercore-ltsc2016
-golang:1.12-rc
-golang:1.12-rc-alpine
-golang:1.12-rc-alpine3.8
-golang:1.12-rc-alpine3.9
-golang:1.12-rc-nanoserver
-golang:1.12-rc-nanoserver-sac2016
-golang:1.12-rc-stretch
-golang:1.12-rc-windowsservercore
-golang:1.12-rc-windowsservercore-1709
-golang:1.12-rc-windowsservercore-1803
-golang:1.12-rc-windowsservercore-1809
-golang:1.12-rc-windowsservercore-ltsc2016
+golang:1.12
+golang:1.12-alpine
+golang:1.12-alpine3.9
+golang:1.12-nanoserver
+golang:1.12-nanoserver-sac2016
+golang:1.12-stretch
+golang:1.12-windowsservercore
+golang:1.12-windowsservercore-1709
+golang:1.12-windowsservercore-1803
+golang:1.12-windowsservercore-1809
+golang:1.12-windowsservercore-ltsc2016
+golang:1.12.0
+golang:1.12.0-alpine
+golang:1.12.0-alpine3.9
+golang:1.12.0-nanoserver
+golang:1.12.0-nanoserver-sac2016
+golang:1.12.0-stretch
+golang:1.12.0-windowsservercore
+golang:1.12.0-windowsservercore-1709
+golang:1.12.0-windowsservercore-1803
+golang:1.12.0-windowsservercore-1809
+golang:1.12.0-windowsservercore-ltsc2016
 golang:alpine
-golang:alpine3.8
 golang:alpine3.9
 golang:latest
 golang:nanoserver
 golang:nanoserver-sac2016
-golang:rc
-golang:rc-alpine
-golang:rc-alpine3.8
-golang:rc-alpine3.9
-golang:rc-nanoserver
-golang:rc-nanoserver-sac2016
-golang:rc-stretch
-golang:rc-windowsservercore
-golang:rc-windowsservercore-1709
-golang:rc-windowsservercore-1803
-golang:rc-windowsservercore-1809
-golang:rc-windowsservercore-ltsc2016
 golang:stretch
 golang:windowsservercore
 golang:windowsservercore-1709
diff --git a/_bashbrew-shared-tags b/_bashbrew-shared-tags
index c6d9a1c..f761e94 100644
--- a/_bashbrew-shared-tags
+++ b/_bashbrew-shared-tags
@@ -1,27 +1,18 @@
 golang:1 -- golang:stretch, golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
 golang:1-nanoserver -- golang:nanoserver-sac2016
 golang:1-windowsservercore -- golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
-golang:1.10 -- golang:1.10-stretch, golang:1.10-windowsservercore-ltsc2016, golang:1.10-windowsservercore-1709, golang:1.10-windowsservercore-1803, golang:1.10-windowsservercore-1809
-golang:1.10-nanoserver -- golang:1.10-nanoserver-sac2016
-golang:1.10-windowsservercore -- golang:1.10-windowsservercore-ltsc2016, golang:1.10-windowsservercore-1709, golang:1.10-windowsservercore-1803, golang:1.10-windowsservercore-1809
-golang:1.10.8 -- golang:1.10-stretch, golang:1.10-windowsservercore-ltsc2016, golang:1.10-windowsservercore-1709, golang:1.10-windowsservercore-1803, golang:1.10-windowsservercore-1809
-golang:1.10.8-nanoserver -- golang:1.10-nanoserver-sac2016
-golang:1.10.8-windowsservercore -- golang:1.10-windowsservercore-ltsc2016, golang:1.10-windowsservercore-1709, golang:1.10-windowsservercore-1803, golang:1.10-windowsservercore-1809
-golang:1.11 -- golang:stretch, golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
-golang:1.11-nanoserver -- golang:nanoserver-sac2016
-golang:1.11-windowsservercore -- golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
-golang:1.11.5 -- golang:stretch, golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
-golang:1.11.5-nanoserver -- golang:nanoserver-sac2016
-golang:1.11.5-windowsservercore -- golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
-golang:1.12rc1 -- golang:rc-stretch, golang:rc-windowsservercore-ltsc2016, golang:rc-windowsservercore-1709, golang:rc-windowsservercore-1803, golang:rc-windowsservercore-1809
-golang:1.12rc1-nanoserver -- golang:rc-nanoserver-sac2016
-golang:1.12rc1-windowsservercore -- golang:rc-windowsservercore-ltsc2016, golang:rc-windowsservercore-1709, golang:rc-windowsservercore-1803, golang:rc-windowsservercore-1809
-golang:1.12-rc -- golang:rc-stretch, golang:rc-windowsservercore-ltsc2016, golang:rc-windowsservercore-1709, golang:rc-windowsservercore-1803, golang:rc-windowsservercore-1809
-golang:1.12-rc-nanoserver -- golang:rc-nanoserver-sac2016
-golang:1.12-rc-windowsservercore -- golang:rc-windowsservercore-ltsc2016, golang:rc-windowsservercore-1709, golang:rc-windowsservercore-1803, golang:rc-windowsservercore-1809
+golang:1.11 -- golang:1.11-stretch, golang:1.11-windowsservercore-ltsc2016, golang:1.11-windowsservercore-1709, golang:1.11-windowsservercore-1803, golang:1.11-windowsservercore-1809
+golang:1.11-nanoserver -- golang:1.11-nanoserver-sac2016
+golang:1.11-windowsservercore -- golang:1.11-windowsservercore-ltsc2016, golang:1.11-windowsservercore-1709, golang:1.11-windowsservercore-1803, golang:1.11-windowsservercore-1809
+golang:1.11.5 -- golang:1.11-stretch, golang:1.11-windowsservercore-ltsc2016, golang:1.11-windowsservercore-1709, golang:1.11-windowsservercore-1803, golang:1.11-windowsservercore-1809
+golang:1.11.5-nanoserver -- golang:1.11-nanoserver-sac2016
+golang:1.11.5-windowsservercore -- golang:1.11-windowsservercore-ltsc2016, golang:1.11-windowsservercore-1709, golang:1.11-windowsservercore-1803, golang:1.11-windowsservercore-1809
+golang:1.12 -- golang:stretch, golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
+golang:1.12-nanoserver -- golang:nanoserver-sac2016
+golang:1.12-windowsservercore -- golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
+golang:1.12.0 -- golang:stretch, golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
+golang:1.12.0-nanoserver -- golang:nanoserver-sac2016
+golang:1.12.0-windowsservercore -- golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
 golang:latest -- golang:stretch, golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
 golang:nanoserver -- golang:nanoserver-sac2016
-golang:rc -- golang:rc-stretch, golang:rc-windowsservercore-ltsc2016, golang:rc-windowsservercore-1709, golang:rc-windowsservercore-1803, golang:rc-windowsservercore-1809
-golang:rc-nanoserver -- golang:rc-nanoserver-sac2016
-golang:rc-windowsservercore -- golang:rc-windowsservercore-ltsc2016, golang:rc-windowsservercore-1709, golang:rc-windowsservercore-1803, golang:rc-windowsservercore-1809
 golang:windowsservercore -- golang:windowsservercore-ltsc2016, golang:windowsservercore-1709, golang:windowsservercore-1803, golang:windowsservercore-1809
diff --git a/golang_1.10-alpine/Dockerfile b/golang_1.10-alpine/Dockerfile
deleted file mode 100644
index 4fd3421..0000000
diff --git a/golang_1.10-alpine3.8/Dockerfile b/golang_1.10-alpine3.8/Dockerfile
deleted file mode 100644
index 3a45e57..0000000
diff --git a/golang_1.10-nanoserver-sac2016/Dockerfile b/golang_1.10-nanoserver-sac2016/Dockerfile
deleted file mode 100644
index 1afad68..0000000
diff --git a/golang_1.10-stretch/Dockerfile b/golang_1.10-stretch/Dockerfile
deleted file mode 100644
index 893a053..0000000
diff --git a/golang_1.10-windowsservercore-1709/Dockerfile b/golang_1.10-windowsservercore-1709/Dockerfile
deleted file mode 100644
index 5f2d166..0000000
diff --git a/golang_1.10-windowsservercore-1803/Dockerfile b/golang_1.10-windowsservercore-1803/Dockerfile
deleted file mode 100644
index 4105966..0000000
diff --git a/golang_1.10-windowsservercore-1809/Dockerfile b/golang_1.10-windowsservercore-1809/Dockerfile
deleted file mode 100644
index ced9728..0000000
diff --git a/golang_1.10-windowsservercore-ltsc2016/Dockerfile b/golang_1.10-windowsservercore-ltsc2016/Dockerfile
deleted file mode 100644
index 8350064..0000000
diff --git a/golang_alpine/Dockerfile b/golang_1.11-alpine/Dockerfile
similarity index 100%
copy from golang_alpine/Dockerfile
copy to golang_1.11-alpine/Dockerfile
diff --git a/golang_alpine3.8/Dockerfile b/golang_1.11-alpine3.8/Dockerfile
similarity index 100%
rename from golang_alpine3.8/Dockerfile
rename to golang_1.11-alpine3.8/Dockerfile
diff --git a/golang_nanoserver-sac2016/Dockerfile b/golang_1.11-nanoserver-sac2016/Dockerfile
similarity index 100%
copy from golang_nanoserver-sac2016/Dockerfile
copy to golang_1.11-nanoserver-sac2016/Dockerfile
diff --git a/golang_stretch/Dockerfile b/golang_1.11-stretch/Dockerfile
similarity index 100%
copy from golang_stretch/Dockerfile
copy to golang_1.11-stretch/Dockerfile
diff --git a/golang_windowsservercore-1709/Dockerfile b/golang_1.11-windowsservercore-1709/Dockerfile
similarity index 100%
copy from golang_windowsservercore-1709/Dockerfile
copy to golang_1.11-windowsservercore-1709/Dockerfile
diff --git a/golang_windowsservercore-1803/Dockerfile b/golang_1.11-windowsservercore-1803/Dockerfile
similarity index 100%
copy from golang_windowsservercore-1803/Dockerfile
copy to golang_1.11-windowsservercore-1803/Dockerfile
diff --git a/golang_windowsservercore-1809/Dockerfile b/golang_1.11-windowsservercore-1809/Dockerfile
similarity index 100%
copy from golang_windowsservercore-1809/Dockerfile
copy to golang_1.11-windowsservercore-1809/Dockerfile
diff --git a/golang_windowsservercore-ltsc2016/Dockerfile b/golang_1.11-windowsservercore-ltsc2016/Dockerfile
similarity index 100%
copy from golang_windowsservercore-ltsc2016/Dockerfile
copy to golang_1.11-windowsservercore-ltsc2016/Dockerfile
diff --git a/golang_alpine/Dockerfile b/golang_alpine/Dockerfile
index d6a56cb..7971f58 100644
--- a/golang_alpine/Dockerfile
+++ b/golang_alpine/Dockerfile
@@ -8,7 +8,7 @@ RUN apk add --no-cache \
 # - docker run --rm debian:stretch grep '^hosts:' /etc/nsswitch.conf
 RUN [ ! -e /etc/nsswitch.conf ] && echo 'hosts: files dns' > /etc/nsswitch.conf
 
-ENV GOLANG_VERSION 1.11.5
+ENV GOLANG_VERSION 1.12
 
 RUN set -eux; \
 	apk add --no-cache --virtual .build-deps \
@@ -37,7 +37,7 @@ RUN set -eux; \
 	esac; \
 	\
 	wget -O go.tgz "https://golang.org/dl/go$GOLANG_VERSION.src.tar.gz"; \
-	echo 'bc1ef02bb1668835db1390a2e478dcbccb5dd16911691af9d75184bbe5aa943e *go.tgz' | sha256sum -c -; \
+	echo '09c43d3336743866f2985f566db0520b36f4992aea2b4b2fd9f52f17049e88f2 *go.tgz' | sha256sum -c -; \
 	tar -C /usr/local -xzf go.tgz; \
 	rm go.tgz; \
 	\
diff --git a/golang_nanoserver-sac2016/Dockerfile b/golang_nanoserver-sac2016/Dockerfile
index 050d7c8..df93ea6 100644
--- a/golang_nanoserver-sac2016/Dockerfile
+++ b/golang_nanoserver-sac2016/Dockerfile
@@ -16,13 +16,13 @@ RUN $newPath = ('{0}\bin;C:\go\bin;{1}' -f $env:GOPATH, $env:PATH); \
 	setx /M PATH $newPath;
 # doing this first to share cache across versions more aggressively
 
-ENV GOLANG_VERSION 1.11.5
+ENV GOLANG_VERSION 1.12
 
 RUN $url = ('https://golang.org/dl/go{0}.windows-amd64.zip' -f $env:GOLANG_VERSION); \
 	Write-Host ('Downloading {0} ...' -f $url); \
 	Invoke-WebRequest -Uri $url -OutFile 'go.zip'; \
 	\
-	$sha256 = '1c734fe614fa052f44694e993f2d06f24a56b6703ee46fdfb2b9bf277819fe40'; \
+	$sha256 = '880ced1aecef08b3471a84381b6c7e2c0e846b81dd97ecb629b534d941f282bd'; \
 	Write-Host ('Verifying sha256 ({0}) ...' -f $sha256); \
 	if ((Get-FileHash go.zip -Algorithm sha256).Hash -ne $sha256) { \
 		Write-Host 'FAILED!'; \
diff --git a/golang_rc-alpine/Dockerfile b/golang_rc-alpine/Dockerfile
deleted file mode 100644
index 4f1866c..0000000
diff --git a/golang_rc-alpine3.8/Dockerfile b/golang_rc-alpine3.8/Dockerfile
deleted file mode 100644
index 1f408e6..0000000
diff --git a/golang_rc-nanoserver-sac2016/Dockerfile b/golang_rc-nanoserver-sac2016/Dockerfile
deleted file mode 100644
index 8be87ef..0000000
diff --git a/golang_rc-stretch/Dockerfile b/golang_rc-stretch/Dockerfile
deleted file mode 100644
index a8b9d5b..0000000
diff --git a/golang_rc-windowsservercore-1709/Dockerfile b/golang_rc-windowsservercore-1709/Dockerfile
deleted file mode 100644
index d54cd1d..0000000
diff --git a/golang_rc-windowsservercore-1803/Dockerfile b/golang_rc-windowsservercore-1803/Dockerfile
deleted file mode 100644
index c0c8d26..0000000
diff --git a/golang_rc-windowsservercore-1809/Dockerfile b/golang_rc-windowsservercore-1809/Dockerfile
deleted file mode 100644
index 5a9b9f6..0000000
diff --git a/golang_rc-windowsservercore-ltsc2016/Dockerfile b/golang_rc-windowsservercore-ltsc2016/Dockerfile
deleted file mode 100644
index 952ccbf..0000000
diff --git a/golang_stretch/Dockerfile b/golang_stretch/Dockerfile
index 8630b11..54db0f1 100644
--- a/golang_stretch/Dockerfile
+++ b/golang_stretch/Dockerfile
@@ -9,20 +9,20 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 		pkg-config \
 	&& rm -rf /var/lib/apt/lists/*
 
-ENV GOLANG_VERSION 1.11.5
+ENV GOLANG_VERSION 1.12
 
 RUN set -eux; \
 	\
 # this "case" statement is generated via "update.sh"
 	dpkgArch="$(dpkg --print-architecture)"; \
 	case "${dpkgArch##*-}" in \
-		amd64) goRelArch='linux-amd64'; goRelSha256='ff54aafedff961eb94792487e827515da683d61a5f9482f668008832631e5d25' ;; \
-		armhf) goRelArch='linux-armv6l'; goRelSha256='b26b53c94923f78955236386fee0725ef4e76b6cb47e0df0ed0c0c4724e7b198' ;; \
-		arm64) goRelArch='linux-arm64'; goRelSha256='6ee9a5714444182a236d3cc4636e74cfc5e24a1bacf0463ac71dcf0e7d4288ed' ;; \
-		i386) goRelArch='linux-386'; goRelSha256='acd8e05f8d3eed406e09bb58eab89de3f0a139d4aef15f74adeed2d2c24cb440' ;; \
-		ppc64el) goRelArch='linux-ppc64le'; goRelSha256='66e83152c68cb35d41f21453377d6a811585c9e01a6ac54b19f7a6e2cbb3d1f5' ;; \
-		s390x) goRelArch='linux-s390x'; goRelSha256='56209e5498c64a8338cd6f0fe0c2e2cbf6857c0acdb10c774894f0cc0d19f413' ;; \
-		*) goRelArch='src'; goRelSha256='bc1ef02bb1668835db1390a2e478dcbccb5dd16911691af9d75184bbe5aa943e'; \
+		amd64) goRelArch='linux-amd64'; goRelSha256='750a07fef8579ae4839458701f4df690e0b20b8bcce33b437e4df89c451b6f13' ;; \
+		armhf) goRelArch='linux-armv6l'; goRelSha256='ea0636f055763d309437461b5817452419411eb1f598dc7f35999fae05bcb79a' ;; \
+		arm64) goRelArch='linux-arm64'; goRelSha256='b7bf59c2f1ac48eb587817a2a30b02168ecc99635fc19b6e677cce01406e3fac' ;; \
+		i386) goRelArch='linux-386'; goRelSha256='3ac1db65a6fa5c13f424b53ee181755429df0c33775733cede1e0d540440fd7b' ;; \
+		ppc64el) goRelArch='linux-ppc64le'; goRelSha256='5be21e7035efa4a270802ea04fb104dc7a54e3492641ae44632170b93166fb68' ;; \
+		s390x) goRelArch='linux-s390x'; goRelSha256='c0aef360b99ebb4b834db8b5b22777b73a11fa37b382121b24bf587c40603915' ;; \
+		*) goRelArch='src'; goRelSha256='09c43d3336743866f2985f566db0520b36f4992aea2b4b2fd9f52f17049e88f2'; \
 			echo >&2; echo >&2 "warning: current architecture ($dpkgArch) does not have a corresponding Go binary release; will be building from source"; echo >&2 ;; \
 	esac; \
 	\
diff --git a/golang_windowsservercore-1709/Dockerfile b/golang_windowsservercore-1709/Dockerfile
index 075c9d0..67da46d 100644
--- a/golang_windowsservercore-1709/Dockerfile
+++ b/golang_windowsservercore-1709/Dockerfile
@@ -46,13 +46,13 @@ RUN $newPath = ('{0}\bin;C:\go\bin;{1}' -f $env:GOPATH, $env:PATH); \
 	[Environment]::SetEnvironmentVariable('PATH', $newPath, [EnvironmentVariableTarget]::Machine);
 # doing this first to share cache across versions more aggressively
 
-ENV GOLANG_VERSION 1.11.5
+ENV GOLANG_VERSION 1.12
 
 RUN $url = ('https://golang.org/dl/go{0}.windows-amd64.zip' -f $env:GOLANG_VERSION); \
 	Write-Host ('Downloading {0} ...' -f $url); \
 	Invoke-WebRequest -Uri $url -OutFile 'go.zip'; \
 	\
-	$sha256 = '1c734fe614fa052f44694e993f2d06f24a56b6703ee46fdfb2b9bf277819fe40'; \
+	$sha256 = '880ced1aecef08b3471a84381b6c7e2c0e846b81dd97ecb629b534d941f282bd'; \
 	Write-Host ('Verifying sha256 ({0}) ...' -f $sha256); \
 	if ((Get-FileHash go.zip -Algorithm sha256).Hash -ne $sha256) { \
 		Write-Host 'FAILED!'; \
diff --git a/golang_windowsservercore-1803/Dockerfile b/golang_windowsservercore-1803/Dockerfile
index c1c1a8e..0000b62 100644
--- a/golang_windowsservercore-1803/Dockerfile
+++ b/golang_windowsservercore-1803/Dockerfile
@@ -46,13 +46,13 @@ RUN $newPath = ('{0}\bin;C:\go\bin;{1}' -f $env:GOPATH, $env:PATH); \
 	[Environment]::SetEnvironmentVariable('PATH', $newPath, [EnvironmentVariableTarget]::Machine);
 # doing this first to share cache across versions more aggressively
 
-ENV GOLANG_VERSION 1.11.5
+ENV GOLANG_VERSION 1.12
 
 RUN $url = ('https://golang.org/dl/go{0}.windows-amd64.zip' -f $env:GOLANG_VERSION); \
 	Write-Host ('Downloading {0} ...' -f $url); \
 	Invoke-WebRequest -Uri $url -OutFile 'go.zip'; \
 	\
-	$sha256 = '1c734fe614fa052f44694e993f2d06f24a56b6703ee46fdfb2b9bf277819fe40'; \
+	$sha256 = '880ced1aecef08b3471a84381b6c7e2c0e846b81dd97ecb629b534d941f282bd'; \
 	Write-Host ('Verifying sha256 ({0}) ...' -f $sha256); \
 	if ((Get-FileHash go.zip -Algorithm sha256).Hash -ne $sha256) { \
 		Write-Host 'FAILED!'; \
diff --git a/golang_windowsservercore-1809/Dockerfile b/golang_windowsservercore-1809/Dockerfile
index cc4b029..af5b0b3 100644
--- a/golang_windowsservercore-1809/Dockerfile
+++ b/golang_windowsservercore-1809/Dockerfile
@@ -46,13 +46,13 @@ RUN $newPath = ('{0}\bin;C:\go\bin;{1}' -f $env:GOPATH, $env:PATH); \
 	[Environment]::SetEnvironmentVariable('PATH', $newPath, [EnvironmentVariableTarget]::Machine);
 # doing this first to share cache across versions more aggressively
 
-ENV GOLANG_VERSION 1.11.5
+ENV GOLANG_VERSION 1.12
 
 RUN $url = ('https://golang.org/dl/go{0}.windows-amd64.zip' -f $env:GOLANG_VERSION); \
 	Write-Host ('Downloading {0} ...' -f $url); \
 	Invoke-WebRequest -Uri $url -OutFile 'go.zip'; \
 	\
-	$sha256 = '1c734fe614fa052f44694e993f2d06f24a56b6703ee46fdfb2b9bf277819fe40'; \
+	$sha256 = '880ced1aecef08b3471a84381b6c7e2c0e846b81dd97ecb629b534d941f282bd'; \
 	Write-Host ('Verifying sha256 ({0}) ...' -f $sha256); \
 	if ((Get-FileHash go.zip -Algorithm sha256).Hash -ne $sha256) { \
 		Write-Host 'FAILED!'; \
diff --git a/golang_windowsservercore-ltsc2016/Dockerfile b/golang_windowsservercore-ltsc2016/Dockerfile
index 58dc7b9..79aaf73 100644
--- a/golang_windowsservercore-ltsc2016/Dockerfile
+++ b/golang_windowsservercore-ltsc2016/Dockerfile
@@ -46,13 +46,13 @@ RUN $newPath = ('{0}\bin;C:\go\bin;{1}' -f $env:GOPATH, $env:PATH); \
 	[Environment]::SetEnvironmentVariable('PATH', $newPath, [EnvironmentVariableTarget]::Machine);
 # doing this first to share cache across versions more aggressively
 
-ENV GOLANG_VERSION 1.11.5
+ENV GOLANG_VERSION 1.12
 
 RUN $url = ('https://golang.org/dl/go{0}.windows-amd64.zip' -f $env:GOLANG_VERSION); \
 	Write-Host ('Downloading {0} ...' -f $url); \
 	Invoke-WebRequest -Uri $url -OutFile 'go.zip'; \
 	\
-	$sha256 = '1c734fe614fa052f44694e993f2d06f24a56b6703ee46fdfb2b9bf277819fe40'; \
+	$sha256 = '880ced1aecef08b3471a84381b6c7e2c0e846b81dd97ecb629b534d941f282bd'; \
 	Write-Host ('Verifying sha256 ({0}) ...' -f $sha256); \
 	if ((Get-FileHash go.zip -Algorithm sha256).Hash -ne $sha256) { \
 		Write-Host 'FAILED!'; \

[tianon]

LGTM

Build test of #5473; 3570595; amd64 (golang):

$ bashbrew build golang:1.12.0-stretch
Building bashbrew/cache:b7c5d817c74fca32e3db58c3bf676969ef9a52548fc2c33997ffd00cdced6d42 (golang:1.12.0-stretch)
Tagging golang:1.12.0-stretch
Tagging golang:1.12-stretch
Tagging golang:1-stretch
Tagging golang:stretch
Tagging golang:1.12.0
Tagging golang:1.12
Tagging golang:1
Tagging golang:latest

$ test/run.sh golang:1.12.0-stretch
testing golang:1.12.0-stretch
	'utc' [1/5]...passed
	'cve-2014--shellshock' [2/5]...passed
	'no-hard-coded-passwords' [3/5]...passed
	'override-cmd' [4/5]...passed
	'golang-hello-world' [5/5]...passed


$ bashbrew build golang:1.12.0-alpine3.9
Building bashbrew/cache:2ba7e7a019b1f75eecc5d252c74df23fab23a3ce86a65d96aa8f4e715511b86d (golang:1.12.0-alpine3.9)
Tagging golang:1.12.0-alpine3.9
Tagging golang:1.12-alpine3.9
Tagging golang:1-alpine3.9
Tagging golang:alpine3.9
Tagging golang:1.12.0-alpine
Tagging golang:1.12-alpine
Tagging golang:1-alpine
Tagging golang:alpine

$ test/run.sh golang:1.12.0-alpine3.9
testing golang:1.12.0-alpine3.9
	'utc' [1/5]...passed
	'cve-2014--shellshock' [2/5]...passed
	'no-hard-coded-passwords' [3/5]...passed
	'override-cmd' [4/5]...passed
	'golang-hello-world' [5/5]...passed


$ bashbrew build golang:1.12.0-windowsservercore-ltsc2016
skipping "golang:1.12.0-windowsservercore-ltsc2016" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.12.0-windowsservercore-ltsc2016
testing golang:1.12.0-windowsservercore-ltsc2016
	image has no tests...skipping


$ bashbrew build golang:1.12.0-windowsservercore-1709
skipping "golang:1.12.0-windowsservercore-1709" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.12.0-windowsservercore-1709
testing golang:1.12.0-windowsservercore-1709
	image has no tests...skipping


$ bashbrew build golang:1.12.0-windowsservercore-1803
skipping "golang:1.12.0-windowsservercore-1803" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.12.0-windowsservercore-1803
testing golang:1.12.0-windowsservercore-1803
	image has no tests...skipping


$ bashbrew build golang:1.12.0-windowsservercore-1809
skipping "golang:1.12.0-windowsservercore-1809" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.12.0-windowsservercore-1809
testing golang:1.12.0-windowsservercore-1809
	image has no tests...skipping


$ bashbrew build golang:1.12.0-nanoserver-sac2016
skipping "golang:1.12.0-nanoserver-sac2016" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.12.0-nanoserver-sac2016
testing golang:1.12.0-nanoserver-sac2016
	image has no tests...skipping


$ bashbrew build golang:1.11.5-stretch
Using bashbrew/cache:f07cdaa3520a0d852ecd621be6cc1a082d6482d7ca30a45a9769155ab2dfde86 (golang:1.11.5-stretch)
Tagging golang:1.11.5-stretch
Tagging golang:1.11-stretch
Tagging golang:1.11.5
Tagging golang:1.11

$ test/run.sh golang:1.11.5-stretch
testing golang:1.11.5-stretch
	'utc' [1/5]...passed
	'cve-2014--shellshock' [2/5]...passed
	'no-hard-coded-passwords' [3/5]...passed
	'override-cmd' [4/5]...passed
	'golang-hello-world' [5/5]...passed


$ bashbrew build golang:1.11.5-alpine3.9
Using bashbrew/cache:563b8c8884156265d61e265400503602a7e14a41f52bf22e7a0b9f08010a54e1 (golang:1.11.5-alpine3.9)
Tagging golang:1.11.5-alpine3.9
Tagging golang:1.11-alpine3.9
Tagging golang:1.11.5-alpine
Tagging golang:1.11-alpine

$ test/run.sh golang:1.11.5-alpine3.9
testing golang:1.11.5-alpine3.9
	'utc' [1/5]...passed
	'cve-2014--shellshock' [2/5]...passed
	'no-hard-coded-passwords' [3/5]...passed
	'override-cmd' [4/5]...passed
	'golang-hello-world' [5/5]...passed


$ bashbrew build golang:1.11.5-alpine3.8
Using bashbrew/cache:ecdb1b2de9bcb2efe59701e1969aa1e9fb10e1f15ba79a63d853966ac5d3551f (golang:1.11.5-alpine3.8)
Tagging golang:1.11.5-alpine3.8
Tagging golang:1.11-alpine3.8

$ test/run.sh golang:1.11.5-alpine3.8
testing golang:1.11.5-alpine3.8
	'utc' [1/5]...passed
	'cve-2014--shellshock' [2/5]...passed
	'no-hard-coded-passwords' [3/5]...passed
	'override-cmd' [4/5]...passed
	'golang-hello-world' [5/5]...passed


$ bashbrew build golang:1.11.5-windowsservercore-ltsc2016
skipping "golang:1.11.5-windowsservercore-ltsc2016" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.11.5-windowsservercore-ltsc2016
testing golang:1.11.5-windowsservercore-ltsc2016
	image has no tests...skipping


$ bashbrew build golang:1.11.5-windowsservercore-1709
skipping "golang:1.11.5-windowsservercore-1709" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.11.5-windowsservercore-1709
testing golang:1.11.5-windowsservercore-1709
	image has no tests...skipping


$ bashbrew build golang:1.11.5-windowsservercore-1803
skipping "golang:1.11.5-windowsservercore-1803" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.11.5-windowsservercore-1803
testing golang:1.11.5-windowsservercore-1803
	image has no tests...skipping


$ bashbrew build golang:1.11.5-windowsservercore-1809
skipping "golang:1.11.5-windowsservercore-1809" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.11.5-windowsservercore-1809
testing golang:1.11.5-windowsservercore-1809
	image has no tests...skipping


$ bashbrew build golang:1.11.5-nanoserver-sac2016
skipping "golang:1.11.5-nanoserver-sac2016" (due to architecture "amd64"; only "windows-amd64" supported)

$ test/run.sh golang:1.11.5-nanoserver-sac2016
testing golang:1.11.5-nanoserver-sac2016
	image has no tests...skipping