Downgrade CI to Debian 8 for glibc 2.19

Closes #1656

ci/container/Dockerfile

@@ -1,4 +1,4 @@
-FROM debian
+FROM debian:8
 
 RUN apt-get update
 
@@ -24,13 +24,23 @@ RUN apt-get install -y build-essential \
 RUN apt-get install -y gettext-base
 
 # Misc build dependencies.
-RUN apt-get install -y jq git rsync
+RUN apt-get install -y git rsync
+
+# We need latest jq from debian buster for date support.
+RUN ARCH="$(dpkg --print-architecture)" && \
+    curl -sSOL http://http.us.debian.org/debian/pool/main/libo/libonig/libonig5_6.9.1-1_$ARCH.deb && \
+    dpkg -i libonig*.deb && \
+    curl -sSOL http://http.us.debian.org/debian/pool/main/j/jq/libjq1_1.5+dfsg-2+b1_$ARCH.deb && \
+    dpkg -i libjq*.deb && \
+    curl -sSOL http://http.us.debian.org/debian/pool/main/j/jq/jq_1.5+dfsg-2+b1_$ARCH.deb && \
+    dpkg -i jq*.deb && rm *.deb
 
 # Installs shellcheck.
-RUN curl -sSL https://github.com/koalaman/shellcheck/releases/download/v0.7.1/shellcheck-v0.7.1.linux.$(uname -m).tar.xz | \
-    tar -xJ && \
-    mv shellcheck*/shellcheck /usr/local/bin && \
-    rm -R shellcheck*
+# Unfortunately coredumps on debian:8 so disabled for now.
+#RUN curl -sSL https://github.com/koalaman/shellcheck/releases/download/v0.7.1/shellcheck-v0.7.1.linux.$(uname -m).tar.xz | \
+#    tar -xJ && \
+#    mv shellcheck*/shellcheck /usr/local/bin && \
+#    rm -R shellcheck*
 
 # Install Go dependencies
 RUN ARCH="$(dpkg --print-architecture)" && \

ci/container/arm64/Dockerfile

@@ -0,0 +1,53 @@
+FROM debian:9
+
+RUN apt-get update
+
+# Needed for debian repositories added below.
+RUN apt-get install -y curl gnupg
+
+# Installs node.
+RUN curl -sSL https://deb.nodesource.com/setup_14.x | bash - && \
+    apt-get install -y nodejs
+
+# Installs yarn.
+RUN curl -sSL https://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - && \
+    echo "deb https://dl.yarnpkg.com/debian/ stable main" | tee /etc/apt/sources.list.d/yarn.list && \
+    apt-get update && apt-get install -y yarn
+
+# Installs VS Code build deps.
+RUN apt-get install -y build-essential \
+                   libsecret-1-dev \
+                   libx11-dev \
+                   libxkbfile-dev
+
+# Installs envsubst.
+RUN apt-get install -y gettext-base
+
+# Misc build dependencies.
+RUN apt-get install -y git rsync
+
+# We need latest jq from debian buster for date support.
+RUN ARCH="$(dpkg --print-architecture)" && \
+    curl -sSOL http://http.us.debian.org/debian/pool/main/libo/libonig/libonig5_6.9.1-1_$ARCH.deb && \
+    dpkg -i libonig*.deb && \
+    curl -sSOL http://http.us.debian.org/debian/pool/main/j/jq/libjq1_1.5+dfsg-2+b1_$ARCH.deb && \
+    dpkg -i libjq*.deb && \
+    curl -sSOL http://http.us.debian.org/debian/pool/main/j/jq/jq_1.5+dfsg-2+b1_$ARCH.deb && \
+    dpkg -i jq*.deb && rm *.deb
+
+# Installs shellcheck.
+# Unfortunately coredumps on debian:8 so disabled for now.
+#RUN curl -sSL https://github.com/koalaman/shellcheck/releases/download/v0.7.1/shellcheck-v0.7.1.linux.$(uname -m).tar.xz | \
+#    tar -xJ && \
+#    mv shellcheck*/shellcheck /usr/local/bin && \
+#    rm -R shellcheck*
+
+# Install Go dependencies
+RUN ARCH="$(dpkg --print-architecture)" && \
+    curl -sSL "https://dl.google.com/go/go1.14.3.linux-$ARCH.tar.gz" | tar -C /usr/local -xz
+ENV PATH=/usr/local/go/bin:/root/go/bin:$PATH
+ENV GO111MODULE=on
+RUN go get mvdan.cc/sh/v3/cmd/shfmt
+RUN go get github.com/goreleaser/nfpm/cmd/nfpm
+
+RUN curl -fsSL https://get.docker.com | sh

ci/container/arm64/README.md

@@ -0,0 +1,6 @@
+# arm64
+
+Unfortunately there is no arm64 build of `debian:8` so
+we need to use `debian:9` instead.
+
+This is just an exact copy of [../Dockerfile](../Dockerfile) with the base image change.