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47 lines
1.7 KiB
Plaintext
47 lines
1.7 KiB
Plaintext
// Module included in the following assemblies:
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//
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// * updating/understanding_updates/how-updates-work.adoc
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:_mod-docs-content-type: REFERENCE
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[id="update-release-images_{context}"]
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= Release images
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A release image is the delivery mechanism for a specific {product-title} (OCP) version.
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It contains the release metadata, a Cluster Version Operator (CVO) binary matching the release version, every manifest needed to deploy individual OpenShift cluster Operators, and a list of SHA digest-versioned references to all container images that make up this OpenShift version.
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You can inspect the content of a specific release image by running the following command:
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[source,terminal]
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----
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$ oc adm release extract <release image>
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----
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[source,terminal]
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----
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$ oc adm release extract quay.io/openshift-release-dev/ocp-release:4.12.6-x86_64
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Extracted release payload from digest sha256:800d1e39d145664975a3bb7cbc6e674fbf78e3c45b5dde9ff2c5a11a8690c87b created at 2023-03-01T12:46:29Z
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----
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[source,terminal]
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----
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$ ls
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----
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[source,terminal]
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----
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0000_03_authorization-openshift_01_rolebindingrestriction.crd.yaml
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0000_03_config-operator_01_proxy.crd.yaml
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0000_03_marketplace-operator_01_operatorhub.crd.yaml
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0000_03_marketplace-operator_02_operatorhub.cr.yaml
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0000_03_quota-openshift_01_clusterresourcequota.crd.yaml <1>
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...
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0000_90_service-ca-operator_02_prometheusrolebinding.yaml <2>
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0000_90_service-ca-operator_03_servicemonitor.yaml
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0000_99_machine-api-operator_00_tombstones.yaml
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image-references <3>
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release-metadata
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----
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<1> Manifest for `ClusterResourceQuota` CRD, to be applied on Runlevel 03
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<2> Manifest for `PrometheusRoleBinding` resource for the `service-ca-operator`, to be applied on Runlevel 90
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<3> List of SHA digest-versioned references to all required images
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