So I finally got things working. I wanted to write down what it was I needed to do to get things to running so hopefully anyone with a similar issue doesn’t have to sink in as much time as I did.

1. I thought all you needed to do to enable private networking on my droplets was just click on the button in the control panel. Turns out there is a bit more work involved, you can see what you need to do here: https://www.google.com/search?q=enabling+private+neworking+on+digiatal+ocean&ie=utf-8&oe=utf-8&client=firefox-b

2. Make sure you are downloading the latest version of keepalived. The version currently listed in the tutorial has a bug in it that prevents it from running the master.sh script. As of me writing this the newest version is 1.2.23. Just check here to see what latest version is:

http://www.keepalived.org/download.html

3. The python script that the tutorial uses to change the floating IP requires the requests module, which does not come standard with python that is bundled with Ubuntu 16. If you haven’t already, install python pip, and then use pip to install the requests module. I also ran into an error trying to install requests involving my locale. Here are the commands I used to get the python script to work

apt-get install python-pip export LC_ALL=C pip install requests

4. With changes that came along with Ubuntu 16, upstart doesn’t apply anymore. I needed to create a new service on each of my droplets so that I could run them with systemctl. Doing the following set up things correctly on my droplets

sudo nano /etc/systemd/system/keepalived.service

Then I copied the following into the file, saved and closed it on both droplets

#
# keepalived control files for systemd
#
# Incorporates fixes from RedHat bug #769726.

[Unit]
Description=LVS and VRRP High Availability monitor
After=network.target
ConditionFileNotEmpty=/etc/keepalived/keepalived.conf

[Service]
Type=simple
# Ubuntu/Debian convention:
EnvironmentFile=-/etc/default/keepalived
ExecStart=/usr/local/sbin/keepalived --dont-fork
ExecReload=/bin/kill -s HUP $MAINPID
# keepalived needs to be in charge of killing its own children.
KillMode=process

[Install]
WantedBy=multi-user.target

I then used the following commands to set up the keepalived service systemctl preset keepalived.service systemctl start keepalived.service

after that I was all good to go.

Keepalived outputs to syslog. I found it very useful to check those logs to help me debug a few of these issues that I had. You can view those logs via the following command: sudo cat /var/log/syslog

this will also include other processes as well so just keep an eye out for Keepalived or Keepalived_vrrp

Well I hope this is useful to anyone else out there in the future!

So I finally got things working. I wanted to write down what it was I needed to do to get things to running so hopefully anyone with a similar issue doesn’t have to sink in as much time as I did.

1. I thought all you needed to do to enable private networking on my droplets was just click on the button in the control panel. Turns out there is a bit more work involved, you can see what you need to do here: https://www.google.com/search?q=enabling+private+neworking+on+digiatal+ocean&ie=utf-8&oe=utf-8&client=firefox-b

2. Make sure you are downloading the latest version of keepalived. The version currently listed in the tutorial has a bug in it that prevents it from running the master.sh script. As of me writing this the newest version is 1.2.23. Just check here to see what latest version is:

http://www.keepalived.org/download.html

3. The python script that the tutorial uses to change the floating IP requires the requests module, which does not come standard with python that is bundled with Ubuntu 16. If you haven’t already, install python pip, and then use pip to install the requests module. I also ran into an error trying to install requests involving my locale. Here are the commands I used to get the python script to work

apt-get install python-pip export LC_ALL=C pip install requests

4. With changes that came along with Ubuntu 16, upstart doesn’t apply anymore. I needed to create a new service on each of my droplets so that I could run them with systemctl. Doing the following set up things correctly on my droplets

sudo nano /etc/systemd/system/keepalived.service

Then I copied the following into the file, saved and closed it on both droplets

#
# keepalived control files for systemd
#
# Incorporates fixes from RedHat bug #769726.

[Unit]
Description=LVS and VRRP High Availability monitor
After=network.target
ConditionFileNotEmpty=/etc/keepalived/keepalived.conf

[Service]
Type=simple
# Ubuntu/Debian convention:
EnvironmentFile=-/etc/default/keepalived
ExecStart=/usr/local/sbin/keepalived --dont-fork
ExecReload=/bin/kill -s HUP $MAINPID
# keepalived needs to be in charge of killing its own children.
KillMode=process

[Install]
WantedBy=multi-user.target

I then used the following commands to set up the keepalived service systemctl preset keepalived.service systemctl start keepalived.service

after that I was all good to go.

Keepalived outputs to syslog. I found it very useful to check those logs to help me debug a few of these issues that I had. You can view those logs via the following command: sudo cat /var/log/syslog

this will also include other processes as well so just keep an eye out for Keepalived or Keepalived_vrrp

Well I hope this is useful to anyone else out there in the future!

So I finally got things working. I wanted to write down what it was I needed to do to get things to running so hopefully anyone with a similar issue doesn’t have to sink in as much time as I did.

1. I thought all you needed to do to enable private networking on my droplets was just click on the button in the control panel. Turns out there is a bit more work involved, you can see what you need to do here: https://www.google.com/search?q=enabling+private+neworking+on+digiatal+ocean&ie=utf-8&oe=utf-8&client=firefox-b

2. Make sure you are downloading the latest version of keepalived. The version currently listed in the tutorial has a bug in it that prevents it from running the master.sh script. As of me writing this the newest version is 1.2.23. Just check here to see what latest version is:

http://www.keepalived.org/download.html

3. The python script that the tutorial uses to change the floating IP requires the requests module, which does not come standard with python that is bundled with Ubuntu 16. If you haven’t already, install python pip, and then use pip to install the requests module. I also ran into an error trying to install requests involving my locale. Here are the commands I used to get the python script to work

apt-get install python-pip export LC_ALL=C pip install requests

4. With changes that came along with Ubuntu 16, upstart doesn’t apply anymore. I needed to create a new service on each of my droplets so that I could run them with systemctl. Doing the following set up things correctly on my droplets

sudo nano /etc/systemd/system/keepalived.service

Then I copied the following into the file, saved and closed it on both droplets

#
# keepalived control files for systemd
#
# Incorporates fixes from RedHat bug #769726.

[Unit]
Description=LVS and VRRP High Availability monitor
After=network.target
ConditionFileNotEmpty=/etc/keepalived/keepalived.conf

[Service]
Type=simple
# Ubuntu/Debian convention:
EnvironmentFile=-/etc/default/keepalived
ExecStart=/usr/local/sbin/keepalived --dont-fork
ExecReload=/bin/kill -s HUP $MAINPID
# keepalived needs to be in charge of killing its own children.
KillMode=process

[Install]
WantedBy=multi-user.target

I then used the following commands to set up the keepalived service systemctl preset keepalived.service systemctl start keepalived.service

after that I was all good to go.

Keepalived outputs to syslog. I found it very useful to check those logs to help me debug a few of these issues that I had. You can view those logs via the following command: sudo cat /var/log/syslog

this will also include other processes as well so just keep an eye out for Keepalived or Keepalived_vrrp

Well I hope this is useful to anyone else out there in the future!

So I finally got things working. I wanted to write down what it was I needed to do to get things to running so hopefully anyone with a similar issue doesn’t have to sink in as much time as I did.

1. I thought all you needed to do to enable private networking on my droplets was just click on the button in the control panel. Turns out there is a bit more work involved, you can see what you need to do here: https://www.google.com/search?q=enabling+private+neworking+on+digiatal+ocean&ie=utf-8&oe=utf-8&client=firefox-b

2. Make sure you are downloading the latest version of keepalived. The version currently listed in the tutorial has a bug in it that prevents it from running the master.sh script. As of me writing this the newest version is 1.2.23. Just check here to see what latest version is:

http://www.keepalived.org/download.html

3. The python script that the tutorial uses to change the floating IP requires the requests module, which does not come standard with python that is bundled with Ubuntu 16. If you haven’t already, install python pip, and then use pip to install the requests module. I also ran into an error trying to install requests involving my locale. Here are the commands I used to get the python script to work

apt-get install python-pip export LC_ALL=C pip install requests

4. With changes that came along with Ubuntu 16, upstart doesn’t apply anymore. I needed to create a new service on each of my droplets so that I could run them with systemctl. Doing the following set up things correctly on my droplets

sudo nano /etc/systemd/system/keepalived.service

Then I copied the following into the file, saved and closed it on both droplets

#
# keepalived control files for systemd
#
# Incorporates fixes from RedHat bug #769726.

[Unit]
Description=LVS and VRRP High Availability monitor
After=network.target
ConditionFileNotEmpty=/etc/keepalived/keepalived.conf

[Service]
Type=simple
# Ubuntu/Debian convention:
EnvironmentFile=-/etc/default/keepalived
ExecStart=/usr/local/sbin/keepalived --dont-fork
ExecReload=/bin/kill -s HUP $MAINPID
# keepalived needs to be in charge of killing its own children.
KillMode=process

[Install]
WantedBy=multi-user.target

I then used the following commands to set up the keepalived service systemctl preset keepalived.service systemctl start keepalived.service

after that I was all good to go.

Keepalived outputs to syslog. I found it very useful to check those logs to help me debug a few of these issues that I had. You can view those logs via the following command: sudo cat /var/log/syslog

this will also include other processes as well so just keep an eye out for Keepalived or Keepalived_vrrp

Well I hope this is useful to anyone else out there in the future!

I am trying to run this on Ubuntu Bionic and keep seeing this :

killall5[somenumber]: only one argument, a signal number, allowed

Because of this, vrrp is not actually working and lb1 holds onto the Floating IP even if nginx is not running locally.

Here is my /etc/systemd/system/multi-user.target.wants/keepalived.service file : [Unit] Description=Keepalive Daemon (LVS and VRRP) After=syslog.target network-online.target Wants=network-online.target

Only start if there is a configuration file

ConditionFileNotEmpty=/etc/keepalived/keepalived.conf

[Service] Type=forking KillMode=process

Read configuration variable file if it is present

EnvironmentFile=-/etc/default/keepalived ExecStart=/usr/sbin/keepalived $DAEMON_ARGS ExecReload=/bin/kill -HUP $MAINPID

[Install] WantedBy=multi-user.target

As far as I understand it, this file is what determines what keepalived “does” under SystemD. Killmode=process is the same as under Ubuntu 16 and 14.

Has anyone else had this issue ?

YES @ArtirigoOcean! Brilliant!

Oh great that worked!

I am still having some issues with keepalived working but that is because my setup is a bit more involved than the one in the tutorial. I’ll figure it out eventually.

Thanks so much for your help

Ah, Ubuntu 16.04 uses systemd instead of upstart, so “start” isn’t a thing anymore. Instead, you can use:

sudo service keepalived start

or

sudo systemctl start keepalived.service

both will do the same. :)