initial commit

6 files changed, 127 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..89b3ddf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,3 @@
+colocation-client
+colocation-client.service
+colocation-client.timer
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..a1864ef
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,59 @@
+#
+#  colocation-client - simple skripts for updating the status of colocation clients
+#
+#  Copyright (c) 2022 Erich Eckner <opensource at eckner dot net>
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+#  USA.
+#
+
+SHELL	 = /bin/bash
+DESTDIR	 =
+ETCDIR	 = /etc
+BINDIR	 = /usr/bin
+LIBDIR	 = /usr/lib
+
+VERSION  = 0.0
+
+all: colocation-client colocation-client.service colocation-client.timer
+
+%: %.in
+	sed " \
+		s/#VERSION#/$(VERSION)/; \
+		s@#BINDIR#@$(BINDIR)@; \
+		s@#ETCDIR#@$(ETCDIR)@; \
+		s@#HELPTEXT#\(\s\+\)#@  --help   \1display this help and exit\n  --version\1display version and exit@; \
+		" $< > $@ && \
+	( [[ "$@" = *.* ]] || chmod +x "$@" )
+
+.PHONY:	install dist clean
+
+install: all
+	install -D -m0755 -t $(DESTDIR)$(BINDIR) colocation-client
+	install -D -m0644 -t $(DESTDIR)$(LIBDIR)/systemd/system colocation-client.service colocation-client.timer
+	install -D -m0644 -t $(DESTDIR)$(ETCDIR) colocation-client.conf
+
+clean:
+	git clean -x -d -f
+
+dist: clean
+	git status --porcelain 2> /dev/null | grep -q "\S" && (git add .; git commit -m"neue Version: $(VERSION)") || true
+	! git tag -d v$(VERSION) 2> /dev/null
+	git tag v$(VERSION)
+	knock-knock || true
+	git push
+	git push --tags
+
+# End of file
diff --git a/colocation-client.conf b/colocation-client.conf
new file mode 100644
index 0000000..fb80d37
--- /dev/null
+++ b/colocation-client.conf
@@ -0,0 +1,27 @@
+{
+  "colocation_server": "https://colocation.eckner.net/",
+  "machines":
+    [
+      {
+        "machine": "fenster-lo",
+        "key": "decaf",
+        "values": {
+          "running": {
+          }
+        }
+      },
+      {
+        "machine": "fenster",
+        "key": "deadbeef",
+        "values": {
+          "power": {
+            "command": "lights-out get power",
+            "result": "stdout"
+          },
+          "ping": {
+            "command": "ping -c1 fenster"
+          }
+        }
+      }
+    ]
+}
diff --git a/colocation-client.in b/colocation-client.in
new file mode 100644
index 0000000..dfb1662
--- /dev/null
+++ b/colocation-client.in
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+configuration_file="${1:-#ETC#/colocation-client.conf}"
+
+jq '{
+  colocation_server,
+  machine: .machines[]
+} | {
+  url: (
+    .colocation_server +
+    "update.php" +
+    (
+      "?machine=" +
+      .machine.machine +
+      "&key=" +
+      .machine.key
+    )
+  ),
+  values: .machine.values,
+}' \
+<"${configuration_file}"
diff --git a/colocation-client.service.in b/colocation-client.service.in
new file mode 100644
index 0000000..2ab0650
--- /dev/null
+++ b/colocation-client.service.in
@@ -0,0 +1,7 @@
+[Unit]
+Description=update colocation status
+After=lights-out-init.service
+
+[Service]
+Type=oneshot
+ExecStart=#BINDIR#/colocation-client
diff --git a/colocation-client.timer.in b/colocation-client.timer.in
new file mode 100644
index 0000000..5fec6b0
--- /dev/null
+++ b/colocation-client.timer.in
@@ -0,0 +1,10 @@
+[Unit]
+Description=update colocation status every few minutes
+
+[Timer]
+OnCalendar=*:00/10:00
+RandomizedDelaySec=600
+FixedRandomDelay=True
+
+[Install]
+WantedBy=timers.target