default_value_changes

KeepAliveD_config/KPAVD-VM-1.conf

@@ -0,0 +1,33 @@
+vrrp_script track_npm {
+    script "/etc/keepalived/check_docker_container.sh <name_of_your_container>"
+    interval 5
+    fall 1
+    rise 30
+}
+
+vrrp_instance NPM-V1 {
+    state MASTER
+    interface eth0
+    virtual_router_id 40
+    priority 100
+    advert_int 1
+
+    unicast_src_ip <NODE_IP>
+    unicast_peer {
+        <PEER_IP>
+    }
+
+    authentication {
+        auth_type PASS
+        auth_pass <CHANGE_TO_8-CHARACTER_PASSWORD>
+    }
+
+    virtual_ipaddress {
+        <VIRTUAL_IP>/<SUBNETMASK>
+    }
+
+    track_script {
+        track_npm
+    }
+
+}

KeepAliveD_config/KPAVD-VM-2.conf

@@ -0,0 +1,33 @@
+vrrp_script track_npm {
+    script "/etc/keepalived/check_docker_container.sh <name_of_your_container>"
+    interval 5
+    fall 1
+    rise 30
+}
+
+vrrp_instance NPM-V1 {
+    state BACKUP
+    interface eth0
+    virtual_router_id 40
+    priority 10
+    advert_int 1
+
+    unicast_src_ip <NODE_IP>
+    unicast_peer {
+        <PEER_IP>
+    }
+
+    authentication {
+        auth_type PASS
+        auth_pass <CHANGE_TO_8-CHARACTER_PASSWORD>
+    }
+
+    virtual_ipaddress {
+        <VIRTUAL_IP>/<SUBNETMASK>
+    }
+
+    track_script {
+        track_npm
+    }
+
+}

KeepAliveD_config/KPAVD-VM-3.conf

@@ -0,0 +1,33 @@
+vrrp_script track_npm {
+    script "/etc/keepalived/check_docker_container.sh <name_of_your_container>"
+    interval 5
+    fall 1
+    rise 30
+}
+
+vrrp_instance NPM-V1 {
+    state BACKUP
+    interface eth0
+    virtual_router_id 40
+    priority 11
+    advert_int 1
+
+    unicast_src_ip <NODE_IP>
+    unicast_peer {
+        <PEER_IP>
+    }
+
+    authentication {
+        auth_type PASS
+        auth_pass <CHANGE_TO_8-CHARACTER_PASSWORD>
+    }
+
+    virtual_ipaddress {
+        <VIRTUAL_IP>/<SUBNETMASK>
+    }
+
+    track_script {
+        track_npm
+    }
+
+}

KeepAliveD_config/check_docker_container.sh

@@ -0,0 +1,22 @@
+#!/bin/bash
+
+container_name=$1
+
+# Debugging output
+echo "Checking container: $container_name"
+
+state_restarting=$(sudo docker inspect --format="{{.State.Restarting}}" "$container_name")
+state_running=$(sudo docker inspect --format="{{.State.Running}}" "$container_name" 2> /dev/null)
+
+# Debugging output
+echo "Restarting: $state_restarting"
+echo "Running: $state_running"
+
+if [ "$state_restarting" = "false" ] && [ "$state_running" = "true" ]; then
+  echo "Container is in the expected state. Exiting with status 0."
+  exit 0
+else
+  echo "Container is not in the expected state. Exiting with status 1."
+  exit 1
+fi
+

KeepAliveD_config/rsync_between_nodes.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+
+# CHECK IF ALL ARGUMENTS HAVE BEEN PASSED
+if [ -z $1 ] || [ -z $2 ] || [ -z $3 ]; then
+
+    echo "You need to pass three arguments."
+    echo "frst argument == container name"
+    echo "scnd argument == local_username"
+    echo "thrd argument == remote_username" 
+
+    exit
+
+fi
+
+# RSYNC FUNCTION
+rsync_npmz () {
+    # $1 == local_username input
+    # $2 == remote_username input
+
+    # NODE-1
+    rsync -avru /home/$1/npm/ $2@<NODE_1_IP>:/home/$2/npm/
+
+    # NODE-2
+    rsync -avru /home/$1/npm/ $2@<NODE_2_IP>:/home/$2/npm/
+
+}
+
+# DEF VARIABLE NAMES
+container_name=$1
+local_username=$2
+remote_username=$3
+
+state_restarting=$(sudo docker inspect --format="{{.State.Restarting}}" "$container_name")
+state_running=$(sudo docker inspect --format="{{.State.Running}}" "$container_name" 2> /dev/null)
+
+# MAIN CODE
+if [ "$state_restarting" = "false" ] && [ "$state_running" = "true" ]; then
+
+    echo "Container is up, that's goood."
+
+    sleep 30;
+
+    rsync_npmz $local_username $remote_username
+
+else
+    echo "Container is down, tho it should not be."
+    
+    rsync_npmz $local_username $remote_username
+fi
+
+# AFTER RSYNCING
+sudo docker-compose -f "/home/$local_username/npm/docker-compose.yml" up
+
+echo "NPM has been started."
+echo "Bye"