From 4da6b9c320e6b49d38af5cb6b5861480141f24cd Mon Sep 17 00:00:00 2001
From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Tue, 6 Oct 2015 16:23:19 +0000
Subject:  - add -s support to s6-svscan  - change examples to support -s  -
 change examples to invoke s6-rc, remove servicedirs

---
 examples/ROOT/img/tmpfs/service/.s6-svscan/README  | 11 +++++++++--
 examples/ROOT/img/tmpfs/service/.s6-svscan/SIGINT  |  3 +++
 examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR1 |  3 +++
 examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR2 |  3 +++
 examples/ROOT/img/tmpfs/service/.s6-svscan/crash   | 14 +++++++++++++-
 5 files changed, 31 insertions(+), 3 deletions(-)
 create mode 100755 examples/ROOT/img/tmpfs/service/.s6-svscan/SIGINT
 create mode 100755 examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR1
 create mode 100755 examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR2
 mode change 120000 => 100755 examples/ROOT/img/tmpfs/service/.s6-svscan/crash

(limited to 'examples/ROOT/img/tmpfs')

diff --git a/examples/ROOT/img/tmpfs/service/.s6-svscan/README b/examples/ROOT/img/tmpfs/service/.s6-svscan/README
index 6500cc6..f61dc8d 100644
--- a/examples/ROOT/img/tmpfs/service/.s6-svscan/README
+++ b/examples/ROOT/img/tmpfs/service/.s6-svscan/README
@@ -1,2 +1,9 @@
-This is the image of the control directory of the s6-svscan process.
-Notice how the symlinks point to ever-existing scripts.
+This is the image of the control directory of the s6-svscan process
+running as pid 1.
+"crash" is run if s6-svscan fails.
+"finish" is run when s6-svscan exits its loop.
+
+ The "SIG*" files are run as children of s6-svscan when it receives
+the corresponding signal. SIGINT, SIGUSR1 and SIGUSR2 will all
+trigger "s6-rc -da change" (the service manager will shut down all
+the services), then s6-svscan will be told to exit its loop.
diff --git a/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGINT b/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGINT
new file mode 100755
index 0000000..f0ff213
--- /dev/null
+++ b/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGINT
@@ -0,0 +1,3 @@
+#!/command/execlineb -P
+foreground { s6-rc -da change }
+s6-svscanctl -6 .
diff --git a/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR1 b/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR1
new file mode 100755
index 0000000..cb4a4ef
--- /dev/null
+++ b/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR1
@@ -0,0 +1,3 @@
+#!/command/execlineb -P
+foreground { s6-rc -da change }
+s6-svscanctl -0 .
diff --git a/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR2 b/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR2
new file mode 100755
index 0000000..e5932be
--- /dev/null
+++ b/examples/ROOT/img/tmpfs/service/.s6-svscan/SIGUSR2
@@ -0,0 +1,3 @@
+#!/command/execlineb -P
+foreground { s6-rc -da change }
+s6-svscanctl -7 .
diff --git a/examples/ROOT/img/tmpfs/service/.s6-svscan/crash b/examples/ROOT/img/tmpfs/service/.s6-svscan/crash
deleted file mode 120000
index 262c196..0000000
--- a/examples/ROOT/img/tmpfs/service/.s6-svscan/crash
+++ /dev/null
@@ -1 +0,0 @@
-/etc/s6-init/crash
\ No newline at end of file
diff --git a/examples/ROOT/img/tmpfs/service/.s6-svscan/crash b/examples/ROOT/img/tmpfs/service/.s6-svscan/crash
new file mode 100755
index 0000000..501e316
--- /dev/null
+++ b/examples/ROOT/img/tmpfs/service/.s6-svscan/crash
@@ -0,0 +1,13 @@
+#!/command/execlineb -P
+
+# This file is run when an unrecoverable error happens
+# to s6-svscan. Edit it to suit your needs.
+
+cd /
+redirfd -r 0 /dev/console
+redirfd -w 1 /dev/console
+fdmove -c 2 1
+
+foreground { s6-echo "s6-svscan panicked! Dropping to a root shell.\n" }
+
+/bin/sh -i
-- 
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