Install Podman on engines for RHEL v8 or later.
When installing a new engine on RHEL 8 or later, the shell installer configures Podman automatically. There are some cases, however, where you might need to install Podman manually:
When using an installation method other than the shell installer (e.g. an RPM package) on RHEL 8 or later.
When the shell installer did not successfully install Podman.
When you want to migrate from Docker to Podman, for an existing Cortex XSIAM engine.
Note
This procedure is intended for RHEL 8 or later. It may not work for other operating system types.
Do not use NAS storage for the $HOME directory. The directory needs to be a local directory for Podman to work.
For RHEL 8, install Podman by typing the following commands:
sudo yum -y install slirp4netns fuse-overlayfs
sudo yum -y module install container-tools
For RHEL 9 or later, install Podman by typing the following command:
sudo yum -y install slirp4netns fuse-overlayfs podman
Run the following commands:
sudo touch /etc/subuid /etc/subgid
sudo mkdir -p /home/demisto
sudo chown demisto:demisto /home/demisto
Configure the
unqualified-search-registries
used by Podman.Podman by default uses the fedoraproject.org, redhat.com, and docker.io unqualified search registries. SinceCortex XSIAM images use only the docker.io registry, you can speed up download times for container images by setting
unqualified-search-registries
to just docker.io.Create or edit the
/home/demisto/.config/containers/registries.conf
config file.In the file, set
unqualified-search-registries = ["docker.io"]
Note
If you edit the file with the
root
user, make sure to set thedemisto
user as file owner by runningchown demisto:demisto /home/demisto/.config/containers/registries.conf
Change the
subuids
andsubgids
by running the following command:sudo usermod --add-subuids 200000-265535 --add-subgids 200000-265535 demisto
Migrate existing containers to Podman:
sudo sh -c "cd /; runuser -u demisto -- podman system migrate"
Set the
net.ipv4.ping-group-range
, by typing the following commands:sudo sh -c "echo 'net.ipv4.ping_group_range=0 2000000' > /etc/sysctl.d/demisto-ping.conf"
sudo sysctl -w "net.ipv4.ping_group_range=0 2000000"
As root user, edit the following
config
file:/usr/local/demisto/d1.conf
Change the
"container.engine.type": "docker"
to“podman"
.If this line does not exist, add the following line to the file:
"container.engine.type": "podman"
"Server": { "HttpsPort": "443", "ProxyMode": true }, "container": { "engine": { "type": "podman" } }, "db": { "index": { "entry": { "disable": true
If the engine is running, restart the service.
sudo systemctl restart d1
Note
If the Allow running multiple engines on the same machine option is selected, run the command:
sudo systemctl restart d1_<Engine _name>