update

pgsql/ADD/ccmd

@@ -0,0 +1,76 @@
+#!/bin/bash
+
+##################################################
+# Mount dir                                      #
+# - /var/lib/pgsql                               #
+# - /var/log/pgsql                               #
+# - /etc/pgsql/conf.d                            #
+##################################################
+
+set -euo pipefail
+export LANG=en_US.UTF-8
+trap Quit EXIT
+
+PIDS=
+GOT_SIGTERM=
+LOG_DIR=/var/log/pgsql
+DATA_DIR=/var/lib/pgsql
+VERSION=$VERSION
+
+function Print {
+    local file=/dev/null
+    [ '-f' = "$1" ] && file=$2 && shift && shift
+    date +"[%F %T] $*" | tee -a $file
+}
+
+function Quit {
+    Print killing pgsql ...
+    su - postgres -c "pg_ctl stop" || true
+    while :; do
+        pkill -x postmaster && Print killing postmaster ... || break
+        sleep 2
+    done
+    Print Container stopped.
+    test -n "$GOT_SIGTERM"
+}
+
+function Init {
+    chown -R postgres:postgres $LOG_DIR $DATA_DIR
+    if [ -z "$(ls $DATA_DIR)" ]; then
+        Print Initing pgsql db files ...
+        su - postgres -c "initdb --pgdata=$DATA_DIR --locale=en_US.UTF-8"
+    else
+        Print Checking pgsql db dir ...
+        su - postgres -c "postgresql-$VERSION-check-db-dir $DATA_DIR"
+    fi
+}
+
+function StartProc {
+    Print Starting pgsql ...
+    local sock="/tmp/.s.PGSQL.$(su - postgres -c 'postmaster -C port')"
+    rm -f $sock
+    su - postgres -c postmaster &
+    PIDS="$PIDS $!"
+    while sleep 1; do
+        [ -e $sock ] && break || echo -n .
+        [ ! -e /proc/$! ] && echo && Print unexpected error! && exit
+    done
+    echo
+    Print PGSQL is ready for connections.
+}
+
+function Main {
+    local pid=
+    Init
+    StartProc
+    trap "GOT_SIGTERM=1; Print Got SIGTERM ..." SIGTERM
+    while [ -z "$GOT_SIGTERM" ] && sleep 2; do
+        for pid in $PIDS; do
+            [ ! -e /proc/$pid ] && Print Unexpected error! && exit
+        done
+    done
+}
+
+# Start here
+Main
+