A model-driven universal operator lifecycle manager for multi cloud and hybrid cloud application management on K8s and machines.
What is an operator lifecycle manager? Kubernetes operators are containers with operations code, that drive your applications on K8s. Juju is an operator lifecycle manager that manages the installation, integration and configuration of operators on the cluster. Juju also extends the idea of operators to traditional application management on Linux and Windows servers, or cloud instances.
Model-driven operations and integration Organise your operators into models, which group together applications that can be tightly integrated on the same substrate and operated by the same team. Capture resource allocation, storage, networking and integration information in the model to simplify ongoing operations.
Better day-2 operations Each operator code package, called a charm, declares methods for actions like back, restore, or security audit. Calling these methods provides remote administration of the application with no low-level access required.
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Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Snap is available for CentOS 7.6+, and Red Hat Enterprise Linux 7.6+, from the Extra Packages for Enterprise Linux (EPEL) repository. The EPEL repository can be added to your system with the following command:
sudo yum install epel-release
Snap can now be installed as follows:
sudo yum install snapd
Once installed, the systemd unit that manages the main snap communication socket needs to be enabled:
sudo systemctl enable --now snapd.socket
To enable classic snap support, enter the following to create a symbolic link between /var/lib/snapd/snap and /snap:
sudo ln -s /var/lib/snapd/snap /snap
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
To install juju, simply use the following command:
sudo snap install juju
Browse and find snaps from the convenience of your desktop using the snap store snap.
Interested to find out more about snaps? Want to publish your own application? Visit snapcraft.io now.