Upgrading on Ubuntu 14.04 (Trusty)

The upgrading procedure varies depending on whether you are going to a newer version:

Install HAProxy Enterprise 1.9r1

Create a new list repository source file in /etc/apt/sources.list.d/.

Note

The extension of the file must be list (i.e. hapee.list)
Add the HAProxy Enterprise load balancer repository, as follows:
1. In the file /etc/apt/sources.list.d/hapee.list, add this content:
```
deb https://www.haproxy.com/download/hapee/key/[YOURKEYHERE]-common/1.9r1/ubuntu-14.04/amd64/ trusty main
```
2. Replace the tag [YOURKEYHERE] with the key you received from HAProxy.
Add the HAProxy Enterprise components repository, as follows:
1. In the file /etc/apt/sources.list.d/hapee.list, add this content:
```
deb https://www.haproxy.com/download/hapee/key/[YOURKEYHERE]-plus/1.9r1/ubuntu-14.04/amd64/ trusty main
```
2. Replace the tag [YOURKEYHERE] with the key you received from HAProxy.
Add the HAProxy Enterprise 'extras' repository, as follows:

Note

The HAProxy Enterprise 'extras' repository includes components that are independent of HAProxy Enterprise versions.
1. In the file /etc/apt/sources.list.d/hapee.list, add this content:
```
deb https://www.haproxy.com/download/hapee/key/[YOURKEYHERE]-plus/extras/ubuntu-14.04/amd64/ trusty main
```
2. Replace the tag [YOURKEYHERE] with the key you received from HAProxy.

Import your HAProxy Enterprise public key from HAProxy Technologies:

curl -s -L  https://www.haproxy.com/download/hapee/key/[YOURKEYHERE]-common/HAPEE-key-1.9r1.asc | apt-key add -

To enable HTTPS (allow apt to access repositories over HTTPS), run:
```
apt-get install apt-transport-https
```
Update the apt repository code by running apt-get update
Install the load balancer by running apt-get install hapee-1.9r1-lb
Stop the old version of HAProxy Enterprise.
Start HAProxy Enterprise by running service hapee-1.9-lb start
Remove the old packages and install the new ones using apt:
```
apt-get install hapee-1.9r1-base "hapee-1.9r1-*"
```
Warning

The hapee-1.9r1-base package forces the uninstallation of any previous HAProxy Enterprise packages from the same branch.
Restart HAProxy Enterprise services using init scripts or systemd.

Warning

You must run this procedure on the slave load-balancer.

After the upgrade, test HAProxy Enterprise to make sure it runs correctly:

Disable the old HAProxy Enterprise branch from starting with the system, as follows:
```
systemctl disable hapee-<previousversion>-lb
```
Ensure that the new HAProxy Enterprise branch starts with the system, as follows:
```
systemctl enable hapee-1.9-lb
```

Stop the old HAProxy Enterprise daemon and start the new daemon:

service hapee-<previousversion>-lb stop
service hapee-1.9r1-lb start

Run tail -f /var/log/syslog (or distribution equivalent) to check for warnings or errors.
Run wget localhost to ensure that HAProxy is responding. Adjust address/port as needed, and use a local address that is currently active on the box and not a VRRP IP.
Put HAProxy Enterprise back into the cluster.
After the new HAProxy Enterprise branch has been running for a while, you can uninstall the old HAProxy Enterprise branch. If there are problems, you can stop the new version and revert to the old version.

Fail out the node by lowering its priority (if using VRRP) or retracting its advertisement (if using BGP/OSPF).
Install HAProxy Enterprise 1.9r1.
Copy /etc/hapee-[previousversion]/hapee-lb.cfg over to /etc/hapee-1.9r1/hapee-lb.cfg and any associated files (maps/certificates/etc)
Test HAProxy Enterprise to stop the old version and start the new one.
Undo the change made in step 1 and proceed to the next node if everything continues smoothly. (If anything goes wrong, you can stop hapee-1.9r1-lb and restart hapee-<previousversion>-lb again.)
Remove the repository URLs of the previous version and uninstall the old packages, after you are certain that you do not need to revert.

Before you upgrade HAProxy Enterprise to a newer version, check that the following conditions apply:

The directory names do not change
The configuration files are located in the same place
The init scripts keep the same names
Each version in a branch is mutually exclusive, which means that another HAProxy Enterprise version and HAProxy Enterprise 1.9r1 cannot be installed together on the same server
HAProxy Enterprise repositories, GPG key, and customer subscription key remain the same

Remove the old packages and install the new ones using apt:
```
apt-get install hapee-1.9r1-base "hapee-1.9r1-*"
```
Warning

The hapee-1.9r1-base package forces the uninstallation of any previous HAProxy Enterprise packages from the same branch.
Restart HAProxy Enterprise services using init scripts or systemd.
Test HAProxy Enterprise to make sure that it runs correctly.

Warning

You must run this procedure on the slave load-balancer.