From a8f5c7cea9c5a96de95c0747b9d15a545ac75ca6 Mon Sep 17 00:00:00 2001
From: Markus Blaschke <mblaschke82@gmail.com>
Date: Fri, 16 Oct 2015 00:57:11 +0200
Subject: [PATCH] Implemented logfiles via named pipes

Related #9
---
 docker/main/bin/entrypoint.sh | 12 ++++++++++++
 docker/main/bin/logwatch.sh   | 16 +++++++++++++++-
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/docker/main/bin/entrypoint.sh b/docker/main/bin/entrypoint.sh
index 4f7a0d6..9e6efed 100755
--- a/docker/main/bin/entrypoint.sh
+++ b/docker/main/bin/entrypoint.sh
@@ -10,6 +10,12 @@ else
     bash /opt/docker/bin/provision.sh entrypoint > /dev/null
 fi
 
+function createNamedPipe() {
+    rm --force -- "$1"
+    mknod "$1" p
+}
+
+
 #############################
 ## COMMAND
 #############################
@@ -18,6 +24,12 @@ case "$1" in
 
     ## Supervisord (start daemons)
     supervisord)
+
+        # Create named pipes for direct log output
+        createNamedPipe /tmp/php.slow.log
+        createNamedPipe /tmp/php.error.log
+        createNamedPipe /tmp/php.access.log
+
         ## Register IP
         ETH0_IP=$(hostname -i)
         mkdir -p /data/dns/
diff --git a/docker/main/bin/logwatch.sh b/docker/main/bin/logwatch.sh
index 729e0ca..2167f6d 100644
--- a/docker/main/bin/logwatch.sh
+++ b/docker/main/bin/logwatch.sh
@@ -1,8 +1,22 @@
 #!/usr/bin/env bash
 
+trap 'echo sigterm ; exit' SIGTERM
+trap 'echo sigkill ; exit' SIGKILL
+
 set -o pipefail  # trace ERR through pipes
 set -o errtrace  # trace ERR through 'time command' and other functions
 set -o nounset   ## set -u : exit the script if you try to use an uninitialised variable
 set -o errexit   ## set -e : exit the script if any statement returns a non-true return value
 
-tail -F --quiet $2 | sed --unbuffered -e "s/^/\[$1\] /"
+LOG_FACILITY="$1"
+LOG_FILE="$2"
+
+# Create pipe
+if [ -f "${LOG_FILE}" ]; then
+    mknod "${LOG_FILE}" p
+fi
+
+# Output content
+while true; do
+    sed --unbuffered -e "s/^/\[${LOG_FACILITY}\] /" < "${LOG_FILE}"
+done