crizstian · April 12, 2019 21:27 · Apr 12, 2019
diff --git a/start.sh b/start.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+
+exec > >(tee /var/log/user-data.log|logger -t user-data -s 2>/dev/console) 2>&1
+
+. /etc/environment
+. /var/mongo/hosts.sh
+
+# @params container volume
+function recreateContainer {
+  serv=$(howManyServers)
+  keyfile="mongo-keyfile"
+  port="$DB_PORT:$DB_PORT"
+  p=$DB_PORT
+
+  echo '·· recreating container >>>> '$1' ··'
+
+  #create container with sercurity and replica configuration
+  docker run --restart=unless-stopped --name $1 --hostname $1 \
+  -v mongo_storage:/data \
+  $serv \
+  -p $port \
+  -d mongo --smallfiles \
+  --keyFile /data/keyfile/$keyfile \
+  --replSet $DB_REPLSET_NAME \
+  --storageEngine wiredTiger \
+  --port $p \
+  --bind_ip 0.0.0.0
+
+  # verify if container is ready
+  wait_for_databases
+
+  echo '·······························'
+  echo '·  CONTAINER '$1' CREATED ··'
+  echo '·······························'
+}
+
+function wait_for {
+  echo ">>>>>>>>>>> waiting for mongodb"
+  start_ts=$(date +%s)
+  while :
+  do
+    (echo > /dev/tcp/$1/$2) >/dev/null 2>&1
+    result=$?
+    if [[ $result -eq 0 ]]; then
+        end_ts=$(date +%s)
+        echo "<<<<< $1:$2 is available after $((end_ts - start_ts)) seconds"
+        sleep 3
+        break
+    fi
+    sleep 5
+  done
+}
+
+function wait_for_databases {
+  ip=`ip -f inet addr show eth0 | grep -Po 'inet \K[\d.]+'`
+  # make tcp call
+  echo "IP == $ip PORT == 27017"
+  wait_for "$ip" 27017
+}
+
+recreateContainer $DB_HOST