update

logstash6/ADD/ccmd

@@ -0,0 +1,84 @@
+#!/bin/bash
+
+##################################################
+# Mount dir                                      #
+# - /opt/logstash/config                         #
+# - /opt/logstash/data                           #
+# - /opt/logstash/logs                           #
+# - /opt/logstash/offline-plugins                #
+##################################################
+
+set -euo pipefail
+export LANG=en_US.UTF-8
+trap Quit EXIT
+
+PIDS=
+GOT_SIGTERM=
+
+function Print {
+    local file=/dev/null
+    [ '-f' = "$1" ] && file=$2 && shift && shift
+    date +"[%F %T] $*" | tee -a $file
+}
+
+function Quit {
+    while :; do
+        pkill -f java && Print killing java ... || break
+        sleep 1
+    done
+    Print Container stopped.
+    test -n "$GOT_SIGTERM"
+}
+
+function Usage {
+    Print 'This container should run with
+    **root user**
+    **/opt/logstash/{config,data,logs,offline-plugins} mounted from host**
+    '
+}
+
+function RestoreConf {
+    if [ -z "$(ls config/)" ]; then
+        Print Restore default config files and quit ...
+        tar zxf config.tgz
+        GOT_SIGTERM=1
+        exit 0
+    fi
+}
+
+function InstallPlugin {
+    for f in $(ls -d offline-plugins/*.zip 2>/dev/null); do
+        Print Install plugins from offline file: $f ...
+        ./bin/logstash-plugin install file://$f
+        mv $f $f.installed
+    done
+}
+
+function StartProc {
+    Print Start logstash ...
+    ./bin/logstash \
+        --path.data /opt/logstash/data \
+        --path.logs /opt/logstash/logs \
+        --path.settings /opt/logstash/config \
+        &>> logs/logstash.out &
+    PIDS="$PIDS $!"
+}
+
+function Main {
+    local pid=
+    cd /opt/logstash
+    Usage
+    RestoreConf
+    InstallPlugin
+    StartProc
+    trap "GOT_SIGTERM=1; Print Got SIGTERM ..." SIGTERM
+    while [ -z "$GOT_SIGTERM" ] && sleep 1; do
+        for pid in $PIDS; do
+            [ ! -e /proc/$pid ] && Print Unexpected error! && exit
+        done
+    done
+}
+
+# Start here
+Main
+