📦 — Fix "Add a make target for Debian packaging"

DEBIAN/postinst

@@ -28,28 +28,22 @@ case "$1" in
     ;;
 esac
 
+# The following line should be removed in trixie or trixie+1
+deb-systemd-helper unmask 'reaction.service' >/dev/null || true
 
-if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
-	# The following line should be removed in trixie or trixie+1
-	deb-systemd-helper unmask 'reaction.service' >/dev/null || true
-
-	# was-enabled defaults to true, so new installations run enable.
-	if deb-systemd-helper --quiet was-enabled 'reaction.service'; then
-		# Enables the unit on first installation, creates new
-		# symlinks on upgrades if the unit file has changed.
-		deb-systemd-helper enable 'reaction.service' >/dev/null || true
-	else
-		# Update the statefile to add new symlinks (if any), which need to be
-		# cleaned up on purge. Also remove old symlinks.
-		deb-systemd-helper update-state 'reaction.service' >/dev/null || true
-	fi
+# was-enabled defaults to true, so new installations run enable.
+if deb-systemd-helper --quiet was-enabled 'reaction.service'; then
+  # Enables the unit on first installation, creates new
+  # symlinks on upgrades if the unit file has changed.
+  deb-systemd-helper enable 'reaction.service' >/dev/null || true
+else
+  # Update the statefile to add new symlinks (if any), which need to be
+  # cleaned up on purge. Also remove old symlinks.
+  deb-systemd-helper update-state 'reaction.service' >/dev/null || true
 fi
 
-
-if [ "$1" = "configure" ] || [ "$1" = "abort-upgrade" ] || [ "$1" = "abort-deconfigure" ] || [ "$1" = "abort-remove" ] ; then
-	if [ -d /run/systemd/system ]; then
-		systemctl --system daemon-reload >/dev/null || true
-	fi
+if [ -d /run/systemd/system ]; then
+  systemctl --system daemon-reload >/dev/null || true
 fi
 
 

Makefile

@@ -14,7 +14,7 @@ reaction.deb: reaction ip46tables
 	mkdir -p deb/reaction/usr/bin/ deb/reaction/usr/sbin/ deb/reaction/lib/systemd/system/
 	cp reaction deb/reaction/usr/bin/
 	cp ip46tables deb/reaction/usr/sbin/
-	cp reaction.service deb/reaction/lib/systemd/system/
+	cp config/reaction.debian.service deb/reaction/lib/systemd/system/reaction.service
 	cp -r DEBIAN/ deb/reaction/DEBIAN
 	sed -e "s/LAST_TAG/`git tag --sort=v:refname | tail -n1`/" -e "s/Version: v/Version: /" -i deb/reaction/DEBIAN/*
 	cd deb && dpkg-deb --root-owner-group --build reaction

README.md

@@ -28,7 +28,7 @@ both are extensions of JSON, so JSON is transitively supported.
 
 - See [reaction.yml](./app/example.yml) or [reaction.jsonnet](./config/example.jsonnet) for a fully explained reference
 - See [server.jsonnet](./config/server.jsonnet) for a real-world configuration
-- See [reaction.service](./config/reaction.service) for a systemd service file
+- See [reaction.example.service](./config/reaction.example.service) for a systemd service file
 - This quick example shows what's needed to prevent brute force attacks on an ssh server:
 
 <details open>
@@ -152,6 +152,21 @@ Executables are provided [here](https://framagit.org/ppom/reaction/-/releases/),
 
 A standard place to put such executables is `/usr/local/bin/`.
 
+#### Debian
+
+The releases also contain a `reaction.deb` file, which packages reaction & ip46tables.
+You can install it using `sudo apt install ./reaction.deb`.
+You'll have to create a configuration at `/etc/reaction.jsonnet`.
+
+If you want to use another configuration format (YAML or JSON), you can override systemd's `ExecStart` command in `/etc/systemd/system/reaction.service` like this:
+```systemd
+[Service]
+# First an empty directive to reset the default one
+ExecStart=
+# Then put what you want
+ExecStart=/usr/bin/reaction start -c /etc/reaction.yml
+```
+
 ### Compilation
 
 You'll need the go (>= 1.20) toolchain for reaction and a c compiler for ip46tables.
@@ -169,7 +184,7 @@ $ gcc ip46tables.d/ip46tables.c -o ip46tables
 
 Provided binaries in the previous section are compiled this way:
 ```shell
-$ docker run -it --rm -v $(pwd):/code -w /code -e CGO_ENABLED=0 golang:1.20 make
+$ docker run -it --rm -e HOME=/tmp/ -v $(pwd):/tmp/code -w /tmp/code -u $(id -u) golang:1.20 make clean reaction.deb
 ```
 
 ### NixOS

config/reaction.debian.service

@@ -3,7 +3,7 @@ Description=A daemon that scans program outputs for repeated patterns, and takes
 Documentation=https://framagit.org/ppom/reaction-wiki
 
 [Service]
-ExecStart=/usr/bin/reaction start -c /etc/reaction.yml
+ExecStart=/usr/bin/reaction start -c /etc/reaction.jsonnet
 StateDirectory=reaction
 RuntimeDirectory=reaction
 WorkingDirectory=/var/lib/reaction

config/reaction.example.service

@@ -4,7 +4,7 @@ WantedBy=multi-user.target
 
 # See `man systemd.exec` and `man systemd.service` for most options below
 [Service]
-ExecStart=/path/to/reaction start -c /etc/reaction.yml
+ExecStart=/path/to/reaction start -c /etc/reaction.jsonnet
 
 # Ask systemd to create /var/lib/reaction (/var/lib/ is implicit)
 StateDirectory=reaction