Deploying on Google Cloud Platform (GCP)

To deploy Wallarm Node on Google Cloud Platform:

1. Log in to your Google Cloud Platform account

Launch your Wallarm Node instance using this link and click LAUNCH ON COMPUTER ENGINE.

The GCP instance launches with a pre-installed Wallarm Node.

The filter node interacts with the Wallarm cloud located on a remote server.

The addnode script connects the filter node to the Wallarm cloud.

Run the script addnode:
You have to pick the script to run depending on the Cloud you are using.
- If you are using https://my.wallarm.com/, run the script from the «EU Cloud» tab below.
- If you are using https://us1.my.wallarm.com/, run the script from the «US Cloud» tab below.
EU Cloud
US Cloud
```
sudo /usr/share/wallarm-common/addnode
```
```
sudo /usr/share/wallarm-common/addnode -H us1.api.wallarm.com
```
Enter the login and password. This is the same login and password that you use to access Wallarm console at https://my.wallarm.com or https://us1.my.wallarm.com/. The profile must have the Administrator role and 2FA should be disabled. If the profile has the Analyst role or has 2FA enabled, the script will error out.

The API choice for your filter node depends on the Cloud you are using. Please, select the API accordingly:

If you are using https://my.wallarm.com/, your node requires access to https://api.wallarm.com:444.
If you are using https://us1.my.wallarm.com/, your node requires access to https://us1.api.wallarm.com:444.

Ensure the access is not blocked by a firewall.

Uncomment the wallarm_mode string in the file /etc/nginx-wallarm/conf.d/wallarm.conf.

To uncomment, remove the # character at the beginning of the string.

By default, the directive is set to off – wallarm_mode off.

Set it to monitoring.

File contents example:

#
# Wallarm module specific parameters
#

wallarm_mode monitoring;
# wallarm_mode_allow_override on;

Wallarm Node uses Tarantool, open-source in-memory database, to calculate traffic metrics required for automated adjusting of security rules.

By default, the amount of RAM allocated to Tarantool is 75% of the total instance memory.

You can change the amount of RAM allocated to in-memory database:

Open the Tarantool configuration file:

vi /etc/default/wallarm-tarantool
Set the amount of allocated RAM (in GB) using the SLAB_ALLOC_ARENA variable. For example, to set 24 GB:

SLAB_ALLOC_ARENA=24
To apply changes, restart the Tarantool daemon:

systemctl restart wallarm-tarantool

Check that the filter node runs and filters the traffic. See Check the filter node operation.