docker/tools: build script and Dockerfile work now

tools/Dockerfile

@@ -0,0 +1,10 @@
+# Set up a packer image in Docker.
+FROM ubuntu:22.04
+LABEL org.opencontainers.image.authors=kyle@imap.cc
+
+RUN apt-get update && apt-get -y install git bash curl sudo
+
+ADD . tools
+RUN tools/install-go.sh
+
+ENTRYPOINT ["/usr/bin/env", "bash"]

tools/install-go.sh

@@ -17,6 +17,8 @@ preflight () {
     case "$(uname -m)" in
 	amd64) ARCH="amd64" ;;
 	arm64) ARCH="arm64" ;;
+    x86_64) ARCH="amd64" ;;
+
 	*)
 	    echo "[!] $(uname -m) is an unsupported architecture." > /dev/stderr
 	    echo '[!] supported architectures: amd64, arm64' > /dev/stderr
@@ -42,7 +44,7 @@ install_godeb () {
     popd
 }
 
-install_go {
+install_go () {
     pushd /tmp
     echo '[*] installing go - this will request sudo'
     godeb install "${GOVERSION}"
@@ -50,3 +52,7 @@ install_go {
     # if needed.
     popd
 }
+
+preflight
+install_godeb
+install_go