Update README.md

Author: alosadagrande

oc-mirror/README.md

@@ -1,3 +1,44 @@
 # oc-mirror plugin
 
-This is a repo that I use to store all the things that I am working on. Mainly around OpenShift/Kubernetes and Telco.
+> :warning: At the time being, oc-mirror needs to be compiled since there is no binary available yet at the [upstream repository](https://github.com/openshift/oc-mirror). I recommend to run hack/build.sh and copy the binary to /usr/local/bin
+
+This folder contains an imageset config file to mirror OCP releases and telco specific operators into a disconnected or at least a different registry than the official one.
+
+```
+$ [root@fx2-1a oc-mirror]# oc-mirror --config imageset-config-fx2-1a-operators.yaml docker://fx2-1a.cloud.lab.eng.bos.redhat.com:8443 --dest-skip-tls
+INFO Checking push permissions for fx2-1a.cloud.lab.eng.bos.redhat.com:8443 
+INFO Found: oc-mirror-workspace/src/publish       
+INFO Found: oc-mirror-workspace/src/v2            
+INFO Found: oc-mirror-workspace/src/charts        
+INFO Planning download for requested release 4.9.12 
+INFO Planning download for requested release 4.9.19 
+INFO Planning download for requested release 4.9.21 
+WARN[0028] DEPRECATION NOTICE:
+Sqlite-based catalogs and their related subcommands are deprecated. Support for
+them will be removed in a future release. Please migrate your catalog workflows
+to the new file-based catalog format. 
+wrote mirroring manifests to oc-mirror-workspace/operators.1645699748/manifests-redhat-operator-index
+
+To upload local images to a registry, run:
+
+	oc adm catalog mirror file://redhat/redhat-operator-index:v4.9 REGISTRY/REPOSITORY
+wrote mirroring manifests to oc-mirror-workspace/operators.1645699748/manifests-certified-operator-index
+
+To upload local images to a registry, run:
+
+	oc adm catalog mirror file://redhat/certified-operator-index:v4.9 REGISTRY/REPOSITORY
+WARNING bundle : pinning related image quay.io/openshift-hive/hive:v1.1.10 to digest 
+WARNING bundle : pinning related image quay.io/openshift-hive/hive:v1.1.11 to digest 
+...
+
+sha256:66bf4dc3d0a3f0559c48d7dc7b9b45af7c90e5b6be704421362645d225c09cf8 fx2-1a.cloud.lab.eng.bos.redhat.com:8443/openshift/release:4.9.12-x86_64-azure-cloud-controller-manager
+info: Mirroring completed in 7m50.83s (51.26MB/s)
+INFO trying next host - response was http.StatusNotFound  host=fx2-1a.cloud.lab.eng.bos.redhat.com:8443
+INFO Catalog image "fx2-1a.cloud.lab.eng.bos.redhat.com:8443/redhat/certified-operator-index:v4.9" not found, using new file-based catalog 
+INFO trying next host - response was http.StatusNotFound  host=fx2-1a.cloud.lab.eng.bos.redhat.com:8443
+INFO Catalog image "fx2-1a.cloud.lab.eng.bos.redhat.com:8443/redhat/community-operator-index:v4.9" not found, using new file-based catalog 
+INFO trying next host - response was http.StatusNotFound  host=fx2-1a.cloud.lab.eng.bos.redhat.com:8443
+INFO Catalog image "fx2-1a.cloud.lab.eng.bos.redhat.com:8443/redhat/redhat-operator-index:v4.9" not found, using new file-based catalog 
+INFO Wrote CatalogSource manifests to oc-mirror-workspace/results-1645700434 
+INFO Wrote ICSP manifests to oc-mirror-workspace/results-1645700434 
+```