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= Embedding in a {op-system-ostree} image for offline use
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:context: microshift-embed-rpm-ostree-offline-use
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toc::[]
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Embedding {microshift-short} containers in an `rpm-ostree` commit means that you can run a node in air-gapped, disconnected, or offline environments. You can embed {product-title} containers in a {op-system-ostree-first} image so that container engines do not need to pull images over a network from a container registry. Workloads can start immediately without network connectivity.
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[role="_abstract"]
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You can embed {microshift-short} in a container by using {op-system-base-full} for fully offline deployments.
* link:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/composing_installing_and_managing_rhel_for_edge_images/setting-up-image-builder_composing-installing-managing-rhel-for-edge-images#edge-image-builder-system-requirements_setting-up-image-builder[Image builder system requirements]
* link:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/composing_installing_and_managing_rhel_for_edge_images/composing-a-rhel-for-edge-image-using-image-builder-command-line_composing-installing-managing-rhel-for-edge-images[Creating a {op-system-ostree} Container blueprint using image builder CLI]
* xref:../microshift_install_rpm_ostree/microshift-embed-in-rpm-ostree.adoc#microshift-creating-ostree-iso_microshift-embed-in-rpm-ostree[Creating the {op-system-ostree} image]
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* link:https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/9/html/securing_networks/using-shared-system-certificates_securing-networks[Using Shared System Certificates ({op-system-base} 9)]
* link:https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html-single/composing_installing_and_managing_rhel_for_edge_images/index[Composing, installing, and managing RHEL for Edge images]
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* xref:../microshift_install_rpm_ostree/microshift-embed-in-rpm-ostree.adoc#microshift-creating-ostree-iso_microshift-embed-in-rpm-ostree[Creating the {op-system-ostree} image]
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* xref:../microshift_updating/microshift-update-rpms-ostree.adoc#microshift-update-rpms-ostree[Applying updates on an OSTree system]
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* xref:../microshift_install_rpm/microshift-install-rpm.adoc#microshift-install-system-requirements_microshift-install-rpm[System requirements for installing {microshift-short}]
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* link:https://console.redhat.com/openshift/install/pull-secret[Red Hat Hybrid Cloud Console pull secret]
* xref:../microshift_install_kickstarts/microshift-rhel-kickstarts.adoc#microshift-rhel-kickstarts[Using Kickstart files for embedding {microshift-short} in {op-system-base} installation]
Updating {product-title} for non-image-based {op-system-base-full} systems requires updating the RPMs. For patch releases, such as {product-version}.1 to {product-version}.2, simply update the RPMs. For minor-version release updates, add the step of enabling the update repository by using your subscription manager.
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You can update {microshift-short} or {op-system-bundle} manually using RPMs.
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[NOTE]
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====
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You can back up application data as needed and move the data copy to a secure location when using any update type.
You can update {microshift-short} on {op-system-ostree-first} by embedding the new version of {microshift-short} on a new operating system image.
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You can update {microshift-short} on {op-system-ostree-first}{rhel-major}by embedding the new version of {microshift-short} on a new operating system image.
= About offline deployments with {op-system-ostree}
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[role="_abstract"]
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Embedding {microshift-short} containers in an `rpm-ostree` commit means that you can run a node in disconnected or offline environments.
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You can embed {product-title} containers in a {op-system-ostree-first} image so that container engines do not need to pull images over a network from a container registry. Workloads can start immediately without network connectivity.
Copy file name to clipboardExpand all lines: modules/microshift-about.adoc
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[id="con-about-microshift_{context}"]
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= About {product-title}
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[role="_abstract"]
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Working with resource-constrained field environments and hardware presents many challenges not experienced with cloud computing. {microshift-short} enables you to solve problems for edge devices by:
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* Running the same Kubernetes workloads you run in the cloud, but at the edge.
= Opening the firewall for remote access to the {microshift-short} node
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Use the following procedure to open the firewall so that a remote user can access the {microshift-short} service. You must complete this procedure before a workstation user can access the node remotely.
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[role="_abstract"]
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You must open the firewall before a workstation user can access the {microshift-short} node remotely.
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For this procedure, `user@microshift` is the user on the {microshift-short} host machine and is responsible for setting up that machine so that it can be accessed by a remote user on a separate workstation.
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@@ -32,4 +33,4 @@ For this procedure, `user@microshift` is the user on the {microshift-short} host
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