Online SCS Installation

If the SCS environment is ever expected to be offline or air-gapped in the future, follow the instructions for offline installation instead. Several dependencies must be put into place to support future upgrades.

Refer to the following steps to install SCS RPM with Internet access:

These instructions assume Swarm packages are unzipped to /root/datacore.

Install the EPEL release.

Download the latest EPEL package.

curl -fLO https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

Install the downloaded RPM.

yum install -y epel-release-latest-7.noarch.rpm

If running Red Hat, enable the server extras repository.

subscription-manager repos --enable=rhel-7-server-extras-rpms

Copy '/root/datacore/Swarm-<version>/SCS/podman-packages-scs-<version>.tar’ and place it into the folder ‘/root/datacore’.
```
cp /root/datacore/Swarm-<version>/SCS/podman-packages-scs-<version>.tar /root/datacore/
```
Extract the file ‘podman-packages-scs-<version>.tar’.
```
tar xvf /root/datacore/podman-packages-scs-<version>.tar
```

Note

This creates the ‘podman_packages’ directory under the ‘/root/datacore/’ directory. This location is used in the next step to set up the podman repo.

Add a new local repo

printf "[podman]
name=Dependencies for install podman 3.0.1
baseurl=file:///root/datacore/podman_packages
enabled=true
gpgcheck=0" > /etc/yum.repos.d/podman.repo

Enable the new Podman repo.

CentOS (no additional steps are required)
```
yum repolist enabled
```

Red Hat

yum install -y yum-utils
yum-config-manager enable podman.repo
yum repolist enabled

Verify Podman is listed as an enabled repo.
Example output:

repo id                                                   repo name                                                                               status
base/7/x86_64                                             CentOS-7 - Base                                                                         10,072
epel/x86_64                                               Extra Packages for Enterprise Linux 7 - x86_64                                          13,768
extras/7/x86_64                                           CentOS-7 - Extras                                                                          518
podman                                                    Dependencies for install podman 3.0.1                                                       12
updates/7/x86_64                                          CentOS-7 - Updates                                                                       5,283
repolist: 29,653

Change back to the /root/datacore/Swarm-<version>/SCS/ directory
```
cd /root/datacore/Swarm-<version>/SCS/
```
Import the GPG key if needed.
```
rpm --import RPM-GPG-KEY
```

Install the SCS RPM.

yum -y install swarm-scs-<version>.el7.x86_64.rpm

Verify SCS is installed properly. The ERROR about being unable to connect to the Swarm Cluster Services API is expected at this step and is not cause for concern.

scsctl help

Example output:

usage: scsctl [-v | --info-log | --debug-log | --trace-log] options: ...

Provides basic control and visibility into Swarm Cluster Services (SCS).

output options:
  These options affect the way output is displayed.

  -v, --verbose  Increase output verbosity (ex: -v, -vv, -vvv). Verbose output
                 is always sent to stdout. (default: None)
  --info-log     Set info-level verbosity (equivalent to -v). (default: None)
  --debug-log    Set debug-level verbosity (equivalent to -vv). (default:
                 None)
  --trace-log    Set trace-level verbosity (equivalent to -vvv). (default:
                 None)

subcommands:
  Which action you wish to perform. To get detailed help, add 'help' to the
  end. For example: 'scsctl auth help'

  options:
    auth         Manages persisted credentials for contacting the Swarm
                 Cluster Services API.
    backup       Manages backing up and restoring Swarm Cluster Services.
    diagnostics  Performs diagnostics on the SCS server setup.
    init         Utilities for setting up a Swarm environment.
    license      Manages the license for this Swarm ecosystem installation.
    repo         Manages the Swarm Cluster Services repository. The repository
                 contains installed component versions and other third-party
                 software.
    system       Performs administrative operations on the system.
    help         Outputs this help and exits.

ERROR: Cannot connect to the Swarm Cluster Services API service at
172.30.4.103:8095. Please ensure the service is up and running.

Next, Run the Swarm Cluster Services (SCS) Initialization Wizard.