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[Doc] Remove podman/docker dependency to access internal registry #3225

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Jun 22, 2022
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[Doc] Remove podman/docker dependency to access internal registry #3225

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27 changes: 5 additions & 22 deletions docs/source/topics/proc_accessing-the-internal-openshift-registry.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -13,9 +13,6 @@ For more information, see link:{crc-gsg-url}#changing-the-selected-preset_gsg[Ch
For more information, see link:{crc-gsg-url}#starting-the-instance_gsg[Starting the instance].
* A working {openshift} CLI ([command]`oc`) command.
For more information, see link:{crc-gsg-url}#accessing-the-openshift-cluster-with-oc_gsg[Accessing the {openshift} cluster with the {openshift} CLI].
* An installation of [command]`podman` or [command]`docker`.
** For Docker, add `default-route-openshift-image-registry.apps-crc.testing` as an insecure registry.
For more information, see link:https://docs.docker.com/registry/insecure/[the Docker documentation].

.Procedure

Expand All @@ -35,7 +32,7 @@ For demonstration purposes, the current user is assumed to be `kubeadmin`.
+
[subs="+quotes,attributes"]
----
$ podman login -u kubeadmin -p $(oc whoami -t) default-route-openshift-image-registry.apps-crc.testing --tls-verify=false
$ oc registry login --insecure=true
----

. Create a new project:
Expand All @@ -45,25 +42,11 @@ $ podman login -u kubeadmin -p $(oc whoami -t) default-route-openshift-image-reg
$ oc new-project demo
----

. Pull an example container image:
. Mirror an example container image:
+
[subs="+quotes,attributes"]
----
$ podman pull quay.io/libpod/alpine
----

. Tag the image, including namespace details:
+
[subs="+quotes,attributes"]
----
$ podman tag alpine:latest default-route-openshift-image-registry.apps-crc.testing/demo/alpine:latest
----

. Push the container image to the internal registry:
+
[subs="+quotes,attributes"]
----
$ podman push default-route-openshift-image-registry.apps-crc.testing/demo/alpine:latest --tls-verify=false
$ oc image mirror registry.access.redhat.com/ubi8/ubi:latest=default-route-openshift-image-registry.apps-crc.testing/demo/ubi8:latest --insecure=true --filter-by-os=linux/amd64
----

. Get imagestreams and verify that the pushed image is listed:
Expand All @@ -77,7 +60,7 @@ $ oc get is
+
[subs="+quotes,attributes"]
----
$ oc set image-lookup alpine
$ oc set image-lookup ubi8
----
+
This setting allows the imagestream to be the source of images without having to provide the full URL to the internal registry.
Expand All @@ -86,5 +69,5 @@ This setting allows the imagestream to be the source of images without having to
+
[subs="+quotes,attributes"]
----
$ oc run demo --image=alpine --command -- sleep 600s
$ oc run demo --image=ubi8 --command -- sleep 600s
----