Add container-run.sh script

1 files changed, 57 insertions, 0 deletions

diff --git a/container-run.sh b/container-run.sh
new file mode 100755
index 0000000..9799f65
--- /dev/null
+++ b/container-run.sh
@@ -0,0 +1,57 @@
+#!/bin/sh
+
+# A simple script to run commands (e.g. build commands) in a Docker container.
+# It can be used for testing on platforms different from the host. For example,
+# the command
+# 
+# ./container-run.sh arm ./build test
+#
+# builds nissy and runs the unit tests in an ARM container.
+# The container images are based on Alpine Linux, see Dockerfile for details.
+# The images are built with a tag starting with 'localhost/nissy/'.
+# See below for a list of options.
+
+usage() {
+        echo "$1"
+        echo ""
+        echo "usage: $0 PLATFORM [COMMAND]"
+        echo ""
+        echo "If COMMAND is unspecified, an interactive shell will be opened."
+        echo ""
+        echo "Available platforms:"
+        echo "x86   (equivalent to: x86_64, amd64)"
+        echo "arm   (equivalent to: arm64)"
+        echo ""
+        echo "Examples:"
+        echo "$0 ram ./build test   # Run unit tests in arm container"
+        exit 1
+}
+
+if [ -z "$1" ]; then
+        usage "No platform given."
+fi
+
+case "$1" in
+x86|x86_64|amd64)
+        p=amd64
+        shift
+        ;;
+arm|arm64)
+        p=arm64
+        shift
+        ;;
+*)
+        usage "Platform '$1' not available."
+        ;;
+esac
+
+platform="--platform=linux/$p"
+image="localhost/nissy/alpine-$p"
+
+docker build "$platform" -t "$image" .
+
+if [ -z "$2" ]; then 
+        docker run "$platform" -it "$image" /bin/sh
+else
+        docker run "$platform" -t "$image" $@
+fi