Add container build files

contrib/build.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+##########################################################################
+# A small script to build a static lgregmapper image
+# using the golang container image
+#
+# the binary will be built in to the current directory
+##########################################################################
+RUNTIME=$(which podman || which docker)
+echo "Using container runtime: ${RUNTIME}"
+
+# find the source directory
+SCRIPTPATH="$(cd "$(dirname "$0")" ; pwd -P)"
+SOURCEPATH="$(cd "${SCRIPTPATH}/../"; pwd -P)"
+echo "Source is in: ${SOURCEPATH}"
+
+# do the thing
+${RUNTIME} run --rm \
+           -e CGO_ENABLED=0 \
+           -v "${SOURCEPATH}:/go/src/lgregmapper" \
+           -v "${PWD}:/go/bin" \
+           -w "/go/src/lgregmapper" \
+           docker.io/golang:1.12 \
+           go get
+
+##########################################################################
+# end of code

contrib/buildah.sh

@@ -0,0 +1,68 @@
+#!/bin/bash
+##########################################################################
+IMAGE='lgregmapper'
+echo "Building ${IMAGE} container"
+
+# find the source directory
+SCRIPTPATH="$(cd "$(dirname "$0")" ; pwd -P)"
+SOURCEPATH="$(cd "${SCRIPTPATH}/../"; pwd -P)"
+echo "Source is in: ${SOURCEPATH}"
+
+##########################################################################
+
+DEPS=(
+    'ca-certificates'
+)    
+B=$(which buildah)
+
+# initialise container
+c=$(buildah from --name ${IMAGE}-working docker.io/debian:buster)
+
+##########################################################################
+
+# install dependencies and initialise directories
+$B run $c -- bash <<EOF
+apt-get -y update
+apt-get -y install --no-install-recommends ${DEPS[@]}
+rm -r /var/lib/apt/lists
+EOF
+
+# mount the container
+m=$($B mount $c)
+
+cpath="${m}/usr/local/share/ca-certificates/burble.dn42"
+mkdir "$m/app" "${cpath}"
+
+curl -o "${cpath}/ca-burble-dn42.crt" \
+     'https://dn42.burble.com/home/certificate-authority/certs/ca-burble-dn42.pem'
+$B run $c -- /usr/sbin/update-ca-certificates
+
+cp ${SOURCEPATH}/contrib/entrypoint.sh ${m}/app/
+chmod +x ${m}/app/entrypoint.sh
+
+# build the binary directly in to the container
+pushd "$m/app"
+"$SOURCEPATH/contrib/build.sh"
+popd
+
+# unmount the container
+$B unmount $c
+
+# configure
+buildah config \
+        --author="Simon Marsh" \
+        --workingdir='/app' \
+        --cmd='/app/entrypoint.sh' \
+        $c
+
+##########################################################################
+# finally create the image
+
+echo "Committing image ..."
+i=$($B commit --squash $c ${IMAGE})
+
+# clean up
+$B rm $c
+
+##########################################################################
+# end of file

contrib/entrypoint.sh

@@ -0,0 +1,16 @@
+#!/bin/bash
+##########################################################################
+
+LGREGMAPPER_API=${LGREGMAPPER_WEBAPP:-https://explorer.burble.dn42/}
+LGREGMAPPER_BIND=${LGREGMAPPER_BIND:-localhost:11211}
+LGREGMAPPER_INTERVAL=${LGREGMAPPER_INTERVAL:-10m}
+LGREGMAPPER_LOGLVL=${LGREGMAPPER_LOGLVL:-info}
+
+exec /app/lgregmapper \
+     -a "$LGREGMAPPER_API" \
+     -b "$LGREGMAPPER_BIND" \
+     -i "$LGREGMAPPER_INTERVAL" \
+     -l "$LGREGMAPPER_LOGLVL" \
+
+##########################################################################
+# end of file

lgregmapper.go

@@ -53,10 +53,10 @@ func main() {
 	// declare cmd line options
 	var (
 		logLevel        = flag.StringP("LogLevel", "l", "Info", "Log level")
-		refreshInterval = flag.StringP("Refresh", "i", "60m", "Refresh interval")
+		refreshInterval = flag.StringP("Refresh", "i", "10m", "Refresh interval")
 		bindAddress     = flag.StringP("BindAddress", "b", "localhost:11211",
 			"Server bind address")
-		apiAddress = flag.StringP("APIAddress", "a", "http://collector.dn42:8042",
+		apiAddress = flag.StringP("APIAddress", "a", "https://explorer.burble.dn42/",
 			"DN42 API server address")
 	)
 	flag.Parse()