+openshift instructions

nmaguiar · Jan 16, 2024 · c272138 · c272138
1 parent 7d4c695
commit c272138
Showing 1 changed file with 27 additions and 2 deletions.
diff --git a/README.md b/README.md
@@ -137,7 +137,7 @@ exit
 To use crictl on a specific node (change from "server-0" to the specific node you want):
 
 ```bash
-NODENAME=k3s-server-0 NAME=imgutils HPATH=/run/containerd/containerd.sock  /bin/sh -c 'kubectl run -n kube-system $NAME --rm -ti --image=nmaguiar/imgutils  --overrides="{\"apiVersion\":\"v1\",\"spec\":{\"nodeName\":\"$NODENAME\",\"containers\":[{\"name\":\"$NAME\",\"image\":\"nmaguiar/imgutils\",\"stdin\":true,\"stdinOnce\":true,\"tty\":true,\"args\":[\"sudo\",\"-E\",\"/bin/bash\"],\"env\":[{\"name\":\"CONTAINER_RUNTIME_ENDPOINT\",\"value\":\"unix:///run/containerd/containerd.sock\"}],\"volumeMounts\":[{\"name\":\"cri\",\"mountPath\":\"/run/containerd/containerd.sock\"}]}],\"volumes\":[{\"name\":\"cri\",\"hostPath\":{\"path\":\"$HPATH\"}}]}}" -- /bin/bash'
+NODENAME=k3s-server-0 NAME=imgutils HPATH=/run/containerd/containerd.sock  /bin/sh -c 'kubectl run -n kube-system $NAME --rm -ti --image=nmaguiar/imgutils  --overrides="{\"apiVersion\":\"v1\",\"spec\":{\"nodeName\":\"$NODENAME\",\"containers\":[{\"name\":\"$NAME\",\"image\":\"nmaguiar/imgutils\",\"stdin\":true,\"stdinOnce\":true,\"tty\":true,\"args\":[\"sudo\",\"-E\",\"/bin/bash\"],\"env\":[{\"name\":\"CONTAINER_RUNTIME_ENDPOINT\",\"value\":\"unix:///run/containerd/containerd.sock\"}],\"volumeMounts\":[{\"name\":\"cri\",\"mountPath\":\"/run/containerd/containerd.sock\"}]}],\"volumes\":[{\"name\":\"cri\",\"hostPath\":{\"path\":\"$HPATH\"}}]}}" -- sudo -E /bin/bash'
 ```
 
 Then you can execute commands like:
@@ -162,7 +162,32 @@ exit
 To use crictl on a specific node (change from "k3s-server-0" to the specific node you want):
 
 ```bash
-NODENAME=k3s-server-0 NAME=imgutils HPATH=/run/k3s/containerd/containerd.sock  /bin/sh -c 'kubectl run -n kube-system $NAME --rm -ti --image=nmaguiar/imgutils  --overrides="{\"apiVersion\":\"v1\",\"spec\":{\"nodeName\":\"$NODENAME\",\"containers\":[{\"name\":\"$NAME\",\"image\":\"nmaguiar/imgutils\",\"stdin\":true,\"stdinOnce\":true,\"tty\":true,\"args\":[\"sudo\",\"-E\",\"/bin/bash\"],\"env\":[{\"name\":\"CONTAINER_RUNTIME_ENDPOINT\",\"value\":\"unix:///run/containerd/containerd.sock\"}],\"volumeMounts\":[{\"name\":\"cri\",\"mountPath\":\"/run/containerd/containerd.sock\"}]}],\"volumes\":[{\"name\":\"cri\",\"hostPath\":{\"path\":\"$HPATH\"}}]}}" -- /bin/bash'
+NODENAME=k3s-server-0 NAME=imgutils HPATH=/run/k3s/containerd/containerd.sock  /bin/sh -c 'kubectl run -n kube-system $NAME --rm -ti --image=nmaguiar/imgutils  --overrides="{\"apiVersion\":\"v1\",\"spec\":{\"nodeName\":\"$NODENAME\",\"containers\":[{\"name\":\"$NAME\",\"image\":\"nmaguiar/imgutils\",\"stdin\":true,\"stdinOnce\":true,\"tty\":true,\"args\":[\"sudo\",\"-E\",\"/bin/bash\"],\"env\":[{\"name\":\"CONTAINER_RUNTIME_ENDPOINT\",\"value\":\"unix:///run/containerd/containerd.sock\"}],\"volumeMounts\":[{\"name\":\"cri\",\"mountPath\":\"/run/containerd/containerd.sock\"}]}],\"volumes\":[{\"name\":\"cri\",\"hostPath\":{\"path\":\"$HPATH\"}}]}}" -- sudo -E /bin/bash'
+```
+
+Then you can execute commands like:
+
+```bash
+$ crictl images
+[...]
+$ crictl ps
+[...]
+$ crictl rmi docker.io/some/image:latest
+[...]
+```
+
+To exit just execute:
+
+```bash
+exit
+```
+
+### OpenShift with crictl
+
+To use crictl on a specific OpenShift node (change from "server-0" to the specific node you want):
+
+```bash
+NODENAME=server-0 NAME=imgutils HPATH=/var/run/crio/crio.sock  /bin/sh -c './kubectl run -n kube-system $NAME --rm -ti --image=nmaguiar/imgutils  --overrides="{\"apiVersion\":\"v1\",\"spec\":{\"nodeName\":\"$NODENAME\",\"containers\":[{\"name\":\"$NAME\",\"image\":\"nmaguiar/imgutils\",\"securityContext\":{\"privileged\":true},\"stdin\":true,\"stdinOnce\":true,\"tty\":true,\"args\":[\"sudo\",\"-E\",\"/bin/bash\"],\"env\":[{\"name\":\"CONTAINER_RUNTIME_ENDPOINT\",\"value\":\"unix:///run/crio/crio.sock\"}],\"volumeMounts\":[{\"name\":\"cri\",\"mountPath\":\"/run/crio/crio.sock\"}]}],\"volumes\":[{\"name\":\"cri\",\"hostPath\":{\"path\":\"$HPATH\"}}]}}" -- sudo -E /bin/bash'
 ```
 
 Then you can execute commands like: