Alpine packer updates

- Ostinato .apk building script generalized to use it for any package
- Reset terminal mode using /etc/motd

packer/alpine-linux/files/docker-apk-build

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+package=$1
+version=$2
+if [ -z "$package" ]; then
+	echo "Usage: docker-apk-build <package> [<alpine version>]" >&2
+	exit 1
+fi
+[ -z "$version" ] && version="latest"
+
+mkdir -p "$package"
+docker run --rm -i -v "$PWD/$package:/package" -e "package=$package" alpine:$version << 'EOF'
+apk add alpine-sdk
+
+adduser -D builder
+addgroup builder abuild
+mkdir -p /var/cache/distfiles
+
+su - builder << END_OF_SU
+mkdir -p .abuild
+echo 'PACKAGER="GNS3 Packer <packer@gns3-registry>"' > .abuild/abuild.conf
+abuild-keygen -a -n -q
+
+git clone --depth 1 git://git.alpinelinux.org/aports
+cd aports/*/"$package"
+abuild -r
+END_OF_SU
+
+alpine_version=$(cat /etc/alpine-release)
+alpine_version=${alpine_version%.*}
+mkdir -p "/package/${alpine_version}"
+cp -p /home/builder/packages/*/*/*.apk "/package/${alpine_version}"
+chown -R $(stat -c '%u:%g' /package) "/package/${alpine_version}"
+EOF

packer/alpine-linux/files/ostinato/build-package

@@ -1,20 +0,0 @@
-#!/bin/sh
-
-alpine_version=3.12
-
-mkdir -p "$alpine_version"
-docker run --rm -i -v "$PWD/$alpine_version:/package" alpine:$alpine_version << 'EOF'
-cd
-apk add alpine-sdk
-mkdir -p .abuild
-echo 'PACKAGER="GNS3 Packer <packer@gns3-registry>"' > .abuild/abuild.conf
-abuild-keygen -a -n -q
-
-git clone --depth 1 git://git.alpinelinux.org/aports
-cd aports/*/ostinato
-abuild -F -r
-cd
-
-cp -p packages/*/*/*.apk /package
-chown $(stat -c '%u:%g' /package) /package/*
-EOF

packer/alpine-linux/scripts/frr.sh

@@ -42,13 +42,13 @@ sed -i -E '/zebra|bgp|ospf|rip|isis|pim|ldp|eigrp|static|bfd/ s/= *no/=yes/' /et
 echo "service integrated-vtysh-config" > /etc/frr/vtysh.conf
 chown frr:frr /etc/frr/vtysh.conf
 
+# reset terminal modes
+sed -i "$(printf '1i\e[?5l\e[?7h\e[?8h')" /etc/motd
+
 # run vtysh in .profile
 cat > /root/.profile << 'EOF'
 # ~/.profile: executed by Bourne-compatible login shells.
 
-# reset terminal modes
-[ -t 1 ] && printf '\e[?5l\e[?7h\e[?8h'
-
 if [ "$BASH" ]; then
   if [ -f ~/.bashrc ]; then
     . ~/.bashrc

packer/alpine-linux/scripts/ostinato.sh

@@ -40,13 +40,13 @@ setcap cap_net_admin,cap_net_raw=eip /usr/bin/drone
 addgroup user ostinato
 addgroup user wireshark
 
+# reset terminal modes
+sed -i "$(printf '1i\e[?5l\e[?7h\e[?8h')" /etc/motd
+
 # create .profile
 cat > /root/.profile << 'EOF'
 # ~/.profile: executed by Bourne-compatible login shells.
 
-# reset terminal modes
-[ -t 1 ] && printf '\e[?5l\e[?7h\e[?8h'
-
 if [ "$BASH" ]; then
   if [ -f ~/.bashrc ]; then
     . ~/.bashrc

packer/alpine-linux/scripts/setup.sh

@@ -1,13 +1,13 @@
 # install additional packages
 apk add nano busybox-extras
 
+# reset terminal modes
+sed -i "$(printf '1i\e[?5l\e[?7h\e[?8h')" /etc/motd
+
 # create .profile
 cat > /root/.profile << 'EOF'
 # ~/.profile: executed by Bourne-compatible login shells.
 
-# reset terminal modes
-[ -t 1 ] && printf '\e[?5l\e[?7h\e[?8h'
-
 if [ "$BASH" ]; then
   if [ -f ~/.bashrc ]; then
     . ~/.bashrc