2 RMT installation and configuration #

Downloaded packages are stored in /usr/share/rmt/public/repo, which is a symbolic link to /var/lib/rmt/public/repo/.

The amount of storage your RMT server requires depends on several variables: the number of repositories and architectures that you mirror, and the number of products that are enabled. As a general guide, 1.5 times the total size of all enabled repositories should be sufficient. This is about 200 GB per SUSE Linux Enterprise release, including all extensions.

To install it during installation, select the rmt-server package. Package selection can be found in Installation Settings when selecting Software.

Figure 2.1: RMT pattern #

 

Check for available RMT updates immediately after installing SUSE Linux Enterprise Server using the zypper patch command because SUSE continuously releases maintenance updates for RMT.

To install RMT on a running SUSE Linux Enterprise Server installation, use zypper:

> sudo zypper in rmt-server

2.3.1 Installation on SLES Minimal VM #

 

SLES Minimal VM is a minimal customizable operating system that is designed for specific usage scenarios, for example, to be run as:

• A container host

• A virtual machine guest

• An appliance base system

• A small server image

SLES Minimal VM image is a good choice for being used as an RMT server. You can download SLES Minimal VM images for KVM, Xen, Microsoft Hyper-V, VMware, and OpenStack from the public SUSE Linux Enterprise Server download page at https://www.suse.com/download/sles/. Find more information on SLES Minimal VM at https://documentation.suse.com/smart/virtualization-cloud/html/minimal-vm/index.html.

Installing RMT on SLES Minimal VM is the same as installing it on an existing system (see Section 2.3, “Installation on an existing system”). To install RMT on SLES Minimal VM, run the following command from the SLES Minimal VM command line as root:

# zypper install rmt-server yast2-rmt nginx mariadb

Important: Hardware requirements

When installing RMT on SLES Minimal VM, be aware that it requires a minimum of 100 GB disk space, depending on the products you select to mirror. Another requirement is a CPU with at least two cores and 2 GB of RAM.

This section describes how to deploy RMT on top of the Kubernetes cluster. It uses Helm as the package manager to interact with the Kubernetes cluster. Find more details about using Helm at https://helm.sh/docs/intro/using_helm/.

> cat << EOF > rmt-config.yaml
---
app:
  storage:
    class: local-path1
  scc:
    username: "UXXXXXXX"
    password: "PASSXXXX"
    products_enable:
      - SLES/15.3/x86_64
      - sle-module-python2/15.3/x86_64
    products_disable:
      - sle-module-legacy/15.3/x86_64
      - sle-module-cap-tools/15.3/x86_64
db:
  storage:
    class: local-path2
ingress:
  enabled: true
  hosts:
    - host: chart-example.local
      paths:
        - path: "/"
          pathType: Prefix
  tls:
    - secretName: rmt-cert
      hosts:
        - chart-example.local
EOF

> kubectl apply -f https://raw.githubusercontent.com/rancher/local-path-provisioner/v0.0.26/deploy/local-path-storage.yaml

> helm install rmtsle oci://registry.suse.com/suse/rmt-helm -f rmt-config.yaml

Configure RMT with YaST as described in the following procedure. It is assumed that this procedure is executed on a newly installed system.

RMT includes the SLP service description file /etc/slp.reg.d/rmt-server.reg. To enable SLP announcements of the RMT service, follow these steps:

If the RMT server is behind a firewall and cannot access SUSE Customer Center directly, you need to allow connections to the following domains for both 80 and 443 ports on the firewall.

If the firewall you are using does not support host name allowlisting—such as firewalld—you need to allow connections to the corresponding IP addresses as described in the following steps.