OpenShift Examples¶

Run OpenShift on your Hetzner Server¶

https://github.com/RedHat-EMEA-SSA-Team/hetzner-ocp4

Run OCP on your laptop¶

OpenShift 4¶

OpenShift 3¶

Container Development Kit
Or simple oc cluster up

1 2	`oc cluster up --image=registry.access.redhat.com/openshift3/ose \ --public-hostname=localhost`

Usefull Red Hat Solutions article¶

Article	Note
How can a user update OpenShift 4 console route
Red Hat Operators Supported in Disconnected Mode
Support Policies for Red Hat OpenShift Container Platform Clusters - Deployments Spanning Multiple Sites(Data Centers/Regions)

Usefull commands¶

Easy install jq on RHEL¶

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curl -O -L https://github.com/stedolan/jq/releases/download/jq-1.6/jq-linux64
chmod +x jq-linux64
sudo mv jq-linux64 /usr/local/bin/jq

jq examples¶

PVC CSV

1	`oc get pvc --all-namespaces -o json \| jq -r ' .items[] \| [.metadata.namespace,.metadata.name,.status.capacity.storage\|tostring]\|@csv'`

Print certificate from secret¶

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oc get secret -n openshift-web-console webconsole-serving-cert -o json | jq -r '.data."tls.crt"' | base64 -d > foo.pem
# Can't use openssl x509, x509 do not support bundles
openssl crl2pkcs7 -nocrl -certfile foo.pem | openssl pkcs7 -print_certs  -noout

Check certificate from master-api¶

1	`echo -n \| openssl s_client -connect q.bohne.io:8443 -servername q.bohne.io 2>/dev/null \| openssl x509 -noout -subject -issuer`

OpenShift certificate overview:¶

1	`find /etc/origin/master/ /etc/origin/node -name "*.crt" -printf '%p - ' -exec openssl x509 -noout -subject -in {} \;`

Stargazers over time¶

Stargazers over time

Last update: September 19, 2020