🤐Add HTPasswd authentication
Openshift 4
Configuration
Secrets
/
🎓Add workers to a ControlPlane only cluster
Openshift 4
Admin Tasks
⌨️API Resources
API
oc
🗂️Apply sysctl tweaks to nodes
Openshift 4
Configuration
Admin Tasks
🎓Block Registries
Openshift 4
Registry
🎓Certificate and CSR management
Openshift 4
Admin Tasks
Certificates
CSRs
🧹Check etcd Performance
Openshift 4
Admin Tasks
etcd
🧹Cleanup pods
Openshift 4
Admin Tasks
Cleanup
Capacity
🔌Collecting a tcpdump from a pod
Openshift 4
Networking
Troubleshooting
tcpdump
🎓Configure Insecure Registries
Openshift 4
Registry
🔢Count pods by node
Openshift 4
Capacity
🧹Create an Infra node for OCP4
Openshift 4
Admin Tasks
etcd
💿Creating a Custom ISO for Bare Metal Installations
Openshift 4
Installation
🔌DC Cluster Mirror and Upgrade
Openshift 4
Disconnected
Registry
Upgrade
🧰Debug node
Openshift 4
Troubleshooting
🗂️Deployment var management tips
Openshift 4
Configuration
Deployments
🗂️Deployment var management tips
Openshift 4
oc
🖼️Determine if an image is multi-architecture
Skopeo
Images
📠Disable reboots with machine-config-operator
Openshift 4
Configuration
🧹Display etcd member table
Openshift 4
Admin Tasks
etcd
🔧Download and extract oc, kubectl and openshift-install one liner
Openshift 4
oc
🔧Easily change oc version
Openshift 4
oc
Admin Tasks
Installation
Tools
🧹Edit qcow2 image with virt-edit
Openshift 4
Installation
📜ElasticSearch queries
Openshift 4
Logging
🔧Extract Infrastructure ID (infraID)
Openshift 4
oc
🔧Extract install-config.yaml
Openshift 4
oc
🧹Get CRI-O settings
Openshift 4
Admin Tasks
💾Get raw disk usage of all images per namespace
Openshift 4
Images
Admin Tasks
⚙️Get settings used in install-config
Openshift 4
Admin Tasks
Configuration
🏷️Get tags of remote images
Openshift 4
Images
🔒Grant Users ability to run --as system:admin
Openshift 4
Admin Tasks
⌨️How full is my cluster?
Openshift 4
Capacity
🧰Install package to RHCOS for debugging
Openshift 4
RHCOS
Troubleshooting
🗂️Kubelet logging verbosity
Openshift 4
Configuration
🎞️List all images in a cluster
Openshift 4
Capacity
Images
🎓List all OpenShift Internal Certificates
Troubleshooting
Certificates
⚙️Modify Master configuration
Openshift 4
Admin Tasks
Configuration
🦙Modify MTU in a second interface in workers
Openshift 4
Configuration
Admin Tasks
💾Modify vSphere Credentials
Openshift 4
VMWare
🗂️NTP configuration
Openshift 4
Configuration
🌐Observe SDN configuration
Openshift 4
Troubleshooting
SDN
🗂️oc Cheat Sheet
Openshift 4
oc
🎞️Patch image pull policy
Openshift 4
Images
🔢Quotas and Limits Demo
Openshift 4
Capacity
Quota
🗂️Remove kubeadmin user
Openshift 4
Configuration
Admin Tasks
🚀Retrieve ignition
Openshift 4
Admin Tasks
Secrets
🧹RHCOS DNS Troubleshooting
Openshift 4
DNS
RHCOS
Troubleshooting
🧰RHCOS image troubleshooting
Openshift 4
RHCOS
Upgrade
Troubleshooting
⌨️Samples of install-config.yaml
Openshift 4
Installation
🔒Secret management tips
Openshift 4
Admin Tasks
Secrets
🧰Support tools in restricted network
Openshift 4
Disconnected
Troubleshooting
🧰Switch cluster version via update channels
Openshift 4
Admin Tasks
Upgrade
🧰Troubleshooting Running and Terminated Pods
Openshift 4
Troubleshooting
🗂️Use oc to get cluster role information
Openshift 4
oc
⌨️Useful Resources
Openshift 4
Blog Posts
VMWare
Terraform
Ignition
🎓View certificates
Troubleshooting
Certificates
🧰View Node Logs
Openshift 4
Troubleshooting
💾VMware UPI Dynamic Storage Folder
Openshift 4
VMWare
💪Which users have specific access
Auth
Troubleshooting